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161 Commits
v2.6.1 ... v3.6.2

Author SHA1 Message Date
Orange++
1b5a7ed4fd Merge pull request #69 from luadebug/patch-1 
Repair omath.hpp by removing unexisting header include
 2025-09-15 15:01:04 +03:00
Saikari
362b818a71 Update omath.hpp 2025-09-15 13:13:55 +03:00
Orange
29a96d64bb Adds 2D screen to world conversion 
Adds an overload for screen_to_world that accepts a 2D screen position.

Renames screen_to_dnc to screen_to_ndc for clarity.
 2025-09-14 04:48:56 +03:00
Orange
256365e52e patch 2025-09-14 04:43:25 +03:00
Orange
e333d81b81 Enables formatting support for Angle objects 
Adds a partial specialization of `std::formatter` for `omath::Angle`
to provide formatting support using `std::format`.

This allows `Angle` objects to be easily formatted as strings,
including degree symbol representation, using standard formatting
techniques.
 2025-09-14 04:43:01 +03:00
Orange
d66f60d419 Removes unnecessary div tag 
Removes an empty div tag, which streamlines the HTML structure and contributes to cleaner code.
 2025-09-13 20:13:35 +03:00
Orange
4a4939b604 Repositions YouTube preview link 
Moves the YouTube preview link to improve the README's visual flow.
 2025-09-13 20:08:48 +03:00
Orange
ebe8d1a90e Improves README readability 
Adds a newline to the README file for better visual separation
between the contribute button and the horizontal rule.
 2025-09-13 19:55:23 +03:00
Orange
1a3376fe6c Improves button aesthetics on README 
Adds whitespace to the buttons displayed on the README to improve their appearance.
 2025-09-13 19:53:09 +03:00
Orange
20188d7043 Updates README with gallery, install and usage 
Enhances the README by adding a gallery showcasing OMath's capabilities,
providing a clearer installation guide, and improving usage examples
to facilitate easier adoption.
Also restructures the navigation for better user experience.
 2025-09-13 19:50:58 +03:00
Orange++
f59e0d255f Update README.md 2025-09-13 19:20:37 +03:00
Orange++
071cb15492 Update README.md 2025-09-13 19:16:19 +03:00
Orange++
f8812ed9e7 Update README.md 2025-09-09 22:15:00 +03:00
Orange++
19d310d35f Update README.md 2025-09-09 21:48:54 +03:00
Orange++
c364879b5f Merge pull request #68 from orange-cpp/feature/screen_to_world 
Feature/screen to world
 2025-09-09 02:58:32 +03:00
Orange
418b7c0e7e Fixes float type conversion in world_to_screen 
Fixes a potential type conversion issue by explicitly casting the x-coordinate to float in the world_to_screen test. This prevents possible compiler warnings and ensures the intended behavior.
 2025-09-09 02:13:45 +03:00
Orange
69f46abce1 Adds projection test for world-to-screen consistency 
Adds a test to verify the consistency of world-to-screen and
screen-to-world projections. This ensures that projecting a point
from world to screen and back results in the same point, thereby
validating the correctness of the camera projection transformations.
 2025-09-09 01:37:38 +03:00
Orange
de61f7a5d8 Adds screen to world space conversion 
Adds functionality to convert screen coordinates to world space, including handling for cases where the inverse view projection matrix is singular or when the world position is out of screen bounds.

Also exposes Camera class to unit tests.
 2025-09-09 01:31:23 +03:00
Orange
07a449b633 Simplifies raycast early exit condition 
Combines the infinite length raycast hit check into a single condition.

This clarifies the logic and avoids redundant checks for early exit
in the ray-triangle intersection test, improving performance.
 2025-09-08 23:52:35 +03:00
Orange++
6bb549ef4c Merge pull request #67 from orange-cpp/feature/angle-improvement 
Implements angle class with normalization
 2025-09-08 20:18:11 +03:00
Orange
14fa810ecb Implements angle class with normalization 
Adds an angle class with support for different normalization
and clamping strategies. Includes trigonometric functions and
arithmetic operators. Introduces unit tests to verify correct
functionality.

Disables unity builds to address a compilation issue.
 2025-09-08 20:15:59 +03:00
Orange++
b964661030 Merge pull request #66 from orange-cpp/feature/remove-legacy 
Removes deprecated Matrix class
 2025-09-08 19:59:34 +03:00
Orange
9c11551c9a Removes deprecated Matrix class 
Removes the deprecated `Matrix` class and its associated source files and unit tests.

This change is to ensure code cleanliness and prevent accidental usage of the slow and outdated `Matrix` class.
The `Mat` class should be used instead.
 2025-09-08 19:56:04 +03:00
Orange++
21fece7c84 Update LICENSE 2025-09-08 15:52:01 +03:00
Orange
996618994d updated logo psd 2025-09-06 23:14:14 +03:00
Orange++
ce8be6dd52 Update README.md 2025-09-04 23:49:07 +03:00
Orange++
17aac2f80e Update CREDITS.md 2025-09-04 20:36:12 +03:00
Orange++
ba927734d2 Update LICENSE 2025-09-04 20:35:25 +03:00
Orange++
c0d5fd18f5 Update SECURITY.md 2025-09-04 20:35:04 +03:00
Orange++
996a9cf15a Update LICENSE 2025-09-04 19:35:05 +03:00
Orange++
91078f5701 Update LICENSE 2025-09-04 19:33:59 +03:00
Orange
036d3a8992 updated logo 2025-09-03 22:18:54 +03:00
Orange
7534fe8969 removed unused defines 2025-09-03 12:52:00 +03:00
Orange
8e4f1812cc fix 2025-09-03 12:50:31 +03:00
Orange++
e8f40218dd Merge pull request #62 from orange-cpp/feaure/added_logo 
Feaure/added logo
 2025-09-01 17:04:50 +03:00
Orange
50054ca937 Acknowledges logo design contribution 
Updates the credits to acknowledge the new initial logo design.
 2025-09-01 17:04:29 +03:00
Orange
63220c0be7 Adds an omath.psd file. 
Adds a binary file named omath.psd.
 2025-09-01 17:03:31 +03:00
Orange
3b6d19782c Updates README with local image links 
Updates the README to use local image links instead of Imgur links for the showcase section.

This improves the project's resilience against external link rot and
ensures the images remain accessible even if Imgur experiences issues.
 2025-09-01 17:02:23 +03:00
Orange
2d58330508 Replaces banner with logo 
Replaces the project banner in the README with a dedicated logo.

This change simplifies the banner implementation and improves maintainability
by using a local image file instead of referencing an external URL.
 2025-09-01 16:56:43 +03:00
Orange
abf57a55ea Updates include paths and removes dependency 
Updates the include paths in omath.hpp to be more explicit,
ensuring correct referencing of header files.

Removes unnecessary include of vector3.hpp from vector2.hpp.
 2025-09-01 01:28:04 +03:00
Orange++
463532ba81 Merge pull request #60 from orange-cpp/feature/moved_to_dear 
Refactors: Moves linear algebra to new directory
 2025-09-01 00:02:00 +03:00
Orange
d74c66990a Refactors: Moves linear algebra to new directory 
Moves linear algebra headers to a new subdirectory to improve project structure.

Updates includes to reflect the directory change.
Adds vcpkg to the tracked repositories.
 2025-08-31 23:36:05 +03:00
Orange
7f1bc51905 Updates project version to 3.5.0 
Increments the project version number in CMakeLists.txt
from 3.4.0 to 3.5.0.
 2025-08-29 22:04:12 +03:00
Orange
71127f1f12 Updates project version to 3.4.0 
Bumps the project's version number from 3.3.0 to 3.4.0.

Adds a compile definition to expose the project version via the
`OMATH_VERSION` macro.
 2025-08-29 22:03:35 +03:00
Orange++
89041e20ae Merge pull request #59 from orange-cpp/feature/new_primitives 
Adds plane primitive generation
 2025-08-29 14:41:36 +03:00
Orange
a54dd4b52a Fixes plane triangle generation 
Corrects the order of vertices when constructing triangles
for the plane primitive, addressing a potential winding order
issue that could lead to incorrect surface normals and rendering.
 2025-08-29 00:11:31 +03:00
Orange
d7e497b617 Simplifies plane creation logic 
Refactors the plane creation function to directly compute the triangle vertices, removing unnecessary intermediate variables. This results in more concise and readable code.
 2025-08-28 23:57:22 +03:00
Orange
80938cd913 Adds plane primitive generation 
Implements a function to generate a plane primitive from two vertices, a direction vector, and a size, returning an array of two triangles.
 2025-08-28 23:18:36 +03:00
Orange++
830505dbe5 Merge pull request #58 from orange-cpp/feature/ortho-proj 
Adds left- and right-handed ortho matrices
 2025-08-27 23:23:40 +03:00
Orange
75565ecf2d Adds left- and right-handed ortho matrices. 
Adds functions to generate left- and right-handed orthographic projection matrices.
This provides more flexibility when defining a projection for rendering.
 2025-08-27 23:17:56 +03:00
Orange
9a7a4c7fff Removed submodule extlibs/glm 2025-08-27 20:22:33 +03:00
Orange
c0f0bb3c2e com 2025-08-27 20:07:47 +03:00
Orange++
a097c0a2f4 Merge pull request #57 from orange-cpp/feature/added_formatters 
Adds std::format support for math types
 2025-08-26 12:37:13 +03:00
Orange
20ae2b4dd1 Adds formatters for Angle and Color 
Adds formatters for `omath::Angle` and `omath::Color` to allow for easy formatting using `std::format`.

This allows users to easily output Angle and Color values in a human-readable format.
 2025-08-26 12:35:40 +03:00
Orange
115b5a3471 Adds std::format support for math types 
Adds `std::formatter` specializations for `Mat`, `Vector2`, `Vector3`, and `Vector4` types, enabling the use of `std::format` for these types.

This simplifies formatting and printing of these mathematical objects, improving code readability and consistency.

Also adds a hash function specialization for Vector3.
 2025-08-26 12:22:33 +03:00
Orange
77893629f9 Adds omath library header 
Creates the main omath header file that includes all
omath library components. This provides a single point
of inclusion for the entire library, simplifying usage
and dependency management.

Also, adjusts the return types for projectile prediction
functions within the legacy engine to explicitly use
the `Vector3` type for consistency and clarity.
 2025-08-25 22:33:00 +03:00
Orange
afb27b1aa9 Adds build test status message 
Adds a status message to the build process that displays whether unit tests are enabled.

This provides better visibility into the build configuration.
 2025-08-25 22:11:39 +03:00
Orange
61006122ae Displays build configuration options 
Prints the values of various CMake configuration options to the console during the build process.

This provides better visibility into the build configuration and helps with debugging build-related issues.
 2025-08-25 22:10:10 +03:00
Orange
4eb0f59fc0 Updates build status message 
Updates the build status message in CMake to include the project name, providing more context during the build process.
 2025-08-25 21:59:25 +03:00
Orange
3b4bf24a16 Updates project version to 3.3.0 
Increments the project version number in CMakeLists.txt
from 3.2.1 to 3.3.0.
 2025-08-25 21:57:07 +03:00
Orange
51d93c4464 Removes outdated header comments 
Removes redundant and outdated header comments. These comments are no longer necessary for maintaining the codebase.
 2025-08-25 21:54:59 +03:00
Orange++
d83a8121db Merge pull request #55 from orange-cpp/feature/unreal-support 
Adds Unreal Engine math library
 2025-08-25 21:49:11 +03:00
Orange
2584cda5c3 Fixes namespace and angle calculations 
Corrects namespace naming from unity_engine to unreal_engine.

Adjusts projectile prediction and angle calculations for accuracy
in Unreal Engine environments.
 2025-08-25 21:46:50 +03:00
Orange
c90497f77b Fixes Unreal Engine view angle matrix order 
The view angle rotation matrix order in Unreal Engine was incorrect, leading to incorrect camera orientation.

This commit fixes the order of rotation matrices to roll, pitch, yaw
to correctly implement Unreal Engine camera rotations.

Adds comprehensive unit tests for Unreal Engine formulas, camera and constants.

Marks Unreal Engine as supported in README.md.
 2025-08-25 21:42:58 +03:00
Orange
0de6b4589f Adds .idea/ to .gitignore 
Adds the standard .idea/ folder contents to the .gitignore file.

This prevents project-specific IDE settings and workspace files from being tracked by Git, keeping the repository cleaner and avoiding potential conflicts between developers using different IDE configurations.
 2025-08-25 21:31:07 +03:00
Orange
8004c8c181 Adds Unreal Engine math implementations 
Adds Unreal Engine-specific implementations for camera and projectile prediction calculations.

This includes:
- Defining constants and data types tailored for Unreal Engine's coordinate system and conventions.
- Implementing functions for calculating forward, right, and up vectors, view matrices, and perspective projection matrices.
- Providing camera trait for look-at angle calculations and projection matrix generation.
- Implements projectile prediction traits and utilities.
 2025-08-25 21:30:35 +03:00
Orange++
1246c4ed07 Update README.md 2025-08-25 17:26:56 +03:00
Orange++
ab463e1caa Update README.md 2025-08-25 16:00:36 +03:00
Orange
4f13010e7d Removes workspace configuration file 
Deletes the `.idea/workspace.xml` file.
This file tracks workspace-specific settings,
and is not meant to be shared across different
development environments.
 2025-08-21 00:33:02 +03:00
Orange
83d3cc099f Improves test accuracy and adds .gitignore entry 
Updates unit tests to include more accurate assertions for camera projections.

Adds .idea/workspace.xml to .gitignore to prevent tracking local IDE settings.

Refactors some test fixture class names for consistency.
 2025-08-21 00:30:05 +03:00
Orange
625c676010 Fixes MSVC redefinition of min/max 
Adds a compiler definition for MSVC to prevent redefinition of min/max macros by the Windows SDK.

Removes unnecessary undef directives in color.hpp as the NOMINMAX definition now handles the issue.
 2025-08-21 00:17:59 +03:00
Orange
2d9ed4cfc8 Configures project IDE settings and improves gitignore 
Adds project-specific IDE settings to improve code style consistency and development environment.

Removes the .idea directory from the .gitignore file, as these files are now intended to be part of the project for consistent IDE configuration across contributors.
 2025-08-21 00:11:37 +03:00
Orange
29795e9906 Includes missing formula headers 
Includes the necessary formula headers in the camera trait files for different rendering engines.
This ensures that the required mathematical functions and definitions are available when using camera traits.
 2025-08-12 19:08:30 +03:00
Orange
0328fef4f7 Fixes Vector3 conversion from ImVec2 
Corrects the static function signature for creating a Vector3 from an ImVec2.

It was mistakenly returning a Vector3 instead of Vector3.

patch
 2025-08-12 09:38:43 +03:00
Orange
687772f073 feat(omath): Add NDC to screen position coordinate diagram 2025-08-12 09:29:14 +03:00
Orange
c66df11754 Updates project version to 3.2.1 
Increments the project version number in CMakeLists.txt
from 3.0.4.1 to 3.2.1, indicating a release or significant
changes in the project.
 2025-08-12 09:25:40 +03:00
Orange
0450dc3547 Adds concept for prediction engine traits 
Introduces a concept `PredEngineConcept` to ensure that classes used as projectile prediction engine traits conform to a specific interface.
This enforces the presence and return types of required methods and ensures that these methods are `noexcept`, improving type safety and predictability.
 2025-08-12 09:21:34 +03:00
Orange
0bd9eda48f Introduces CameraEngine concept 
Adds a concept `CameraEngineConcept` to ensure that camera
engine implementations provide the necessary functions
with the correct signatures and `noexcept` specifications.

This enables compile-time checks for valid camera engine
implementations, improving code reliability and preventing
runtime errors.
 2025-08-12 09:13:02 +03:00
Orange++
858314fa0a Merge pull request #54 from orange-cpp/feature/vec_fix_improvement 
Adds comparison operators to Vector types
 2025-08-12 08:57:31 +03:00
Orange
f277b1038c Adds comparison operators to Vector types 
Adds less than, greater than, less than or equal, and greater than or equal operators to the Vector2, Vector3 and Vector4 classes.
The comparison is based on the lengths of the vectors.

Adds corresponding unit tests.
 2025-08-12 08:54:33 +03:00
Orange
15c055beb7 Removes virtual destructor from Camera 
Removes the virtual destructor from the Camera class as it is not required,
as the class does not act as a base class. This simplifies the class
definition and avoids potential vtable overhead.
 2025-08-11 01:43:22 +03:00
Orange++
4d24815f3e Update issue templates 2025-08-11 01:30:26 +03:00
Orange
d96b0cd2f7 Marks Camera class as final 
Prevents inheritance from the Camera class.
 2025-08-11 01:18:39 +03:00
Orange++
d238bd137f Merge pull request #53 from orange-cpp/u/camera_type_traits 
Refactors camera and prediction using traits
 2025-08-11 00:47:25 +03:00
Orange
17b150499d Refactors camera and prediction engine traits. 
Moves camera and prediction engine implementations into traits for each engine,
decoupling the engine-specific logic from the core classes, promoting code reuse
and maintainability. This change allows for easier addition of new engines and
customization of existing ones.
 2025-08-11 00:32:09 +03:00
Orange
c7228c9674 Updates googletest submodule 
Updates the googletest submodule to the latest commit.

This brings in the latest fixes and improvements from the
googletest project.
 2025-08-07 23:33:30 +03:00
Orange
7a9f5d4966 Removes projectile.cpp 
Removes the projectile.cpp file. The removal indicates that the associated projectile prediction functionality is no longer needed or has been moved elsewhere.
 2025-08-06 18:37:28 +03:00
Orange
a16050242a Adds community badges to README 
Enhances the README by adding Discord and Telegram badges, providing users with direct access to community channels for support and discussions.
 2025-08-06 06:39:57 +03:00
Orange
ea8f3d8d51 Adds contributing guidelines 
Introduces a CONTRIBUTING.MD file to provide guidelines for
contributing to the project, including prerequisites, setup
instructions, pull request workflow, code style, and building
instructions.

xd

returned back

patch
 2025-08-06 06:23:06 +03:00
Orange
08d2ccc03a Refactors Vector operations for type safety 
Ensures type safety in Vector2, Vector3, and Vector4 operations by using static_cast(0) instead of relying on implicit conversions.
This prevents potential issues with different numeric types.

Adds from_im_vec2 and from_im_vec4 methods for creating vectors from ImVec2/ImVec4 types.
 2025-08-06 06:06:42 +03:00
Orange
21ec23d77b patch 2025-08-06 05:56:09 +03:00
Orange++
2c4ff37062 Merge pull request #52 from orange-cpp/feature/more_traits 
Adds engine traits for projectile prediction
 2025-08-06 05:49:25 +03:00
Orange
695a8035b5 Adds engine traits for projectile prediction 
Implements engine-specific traits for projectile and target position prediction.
Each trait encapsulates logic tailored to a specific game engine (IW, OpenGL, Unity),
accounting for engine-specific coordinate systems and calculations.
This allows for accurate projectile prediction across different game environments.
 2025-08-06 05:45:37 +03:00
Orange
d12b236e56 Refactors target position prediction 
Moves target prediction logic into engine traits, improving modularity.

This change consolidates target position prediction within the engine traits,
allowing for a more flexible and maintainable design.

This eliminates redundant code and simplifies the core prediction engine by
delegating target movement calculations to the appropriate trait.
 2025-08-04 03:16:04 +03:00
Orange
7a5090d9f6 Marks legacy engine class as final 
Prevents further inheritance from the legacy projectile prediction engine class.
 2025-08-04 01:12:22 +03:00
Orange
ec76a7239c Adds direct pitch angle calculation 
Implements a direct pitch angle calculation for scenarios with zero gravity, ensuring accurate projectile trajectory predictions in such conditions.

Also marks several methods as noexcept for better performance and exception safety.
 2025-08-04 01:11:11 +03:00
Orange
2758f549a3 Updates project version and removes legacy code 
Updates the project version to prepare for a new release.

Removes the legacy projectile prediction engine, which is no longer needed.
 2025-08-03 18:35:52 +03:00
Orange
493931ef0f Ignores vcpkg directory 
Excludes the vcpkg directory from being tracked by Git.

This prevents accidental commits of external library files
managed by vcpkg, keeping the repository cleaner.
 2025-08-03 18:31:02 +03:00
Orange
9e1990942b Refactors projectile prediction engine 
Migrates projectile prediction logic to leverage engine traits for improved flexibility and testability.

This change decouples core prediction algorithms from specific engine implementations, allowing for easier adaptation to different game engines or simulation environments.
 2025-08-03 18:28:47 +03:00
Orange++
f1984fbe46 Merge pull request #51 from orange-cpp/feature/projectile_pred_custom 
Refactors projectile prediction engine
 2025-08-03 17:38:08 +03:00
Orange
f1fbea21a7 Refactors projectile prediction engine 
Refactors the projectile prediction engine by introducing an interface
and making the legacy implementation more flexible.

The legacy engine is updated to allow for coordinate system customization
through virtual methods, enabling usage in different game environments.

Also introduces vcpkg support for easier dependency management and adds boost-asio as a dependency.
 2025-08-03 17:33:22 +03:00
Orange
4b44ce0667 Documents projectile launch angle formula 
Adds a comment documenting the formula used for calculating the projectile launch pitch angle.

The comment includes a link to the Stack Overflow discussion where the formula was found and the LaTeX representation of the formula for clarity.
 2025-07-31 21:52:16 +03:00
Orange++
231ef35a0a Merge pull request #49 from orange-cpp/feature/legacy_option 
Adds option to enable legacy classes
 2025-07-15 11:52:36 +03:00
Orange
1aa62cb396 Enables legacy code compilation 
The changes encapsulate the matrix tests within an `#ifdef` block, allowing conditional compilation based on whether `OMATH_ENABLE_LEGACY` is defined. This enables the legacy code to be compiled only when needed.
 2025-07-15 11:51:14 +03:00
Orange
8e411771c2 Adds option to enable legacy classes 
Introduces a CMake option to enable legacy classes,
allowing for backward compatibility with older code.
This ensures that older codebases can still function
while new development can utilize updated classes.
 2025-07-15 11:48:33 +03:00
Orange++
d65852d1a4 Update README.md 2025-07-14 23:11:46 +03:00
Orange++
21f5e82a20 Merge pull request #48 from luadebug/patch-1 
Update INSTALL.md
 2025-07-14 23:10:39 +03:00
Saikari
851ec37350 Update INSTALL.md 2025-07-14 18:53:41 +03:00
Orange++
f1cd9dbeb3 Update README.md 
fixed ordering
 2025-07-14 17:39:16 +03:00
Orange++
7a1c7d6cc4 Update README.md 
made badge in read me smaller
 2025-07-14 17:38:50 +03:00
Orange++
cb704b3621 Merge pull request #47 from luadebug/patch-1 
Update README.md

Thx for vcpkg port update <3 u r already in CREDITS.md
 2025-07-14 17:37:12 +03:00
Saikari
646d295876 Update README.md 2025-07-14 16:25:16 +03:00
Orange++
8e09556c25 Update README.md 2025-07-08 17:14:52 +03:00
Orange++
7dbebc996d Update README.md 2025-07-08 17:13:24 +03:00
Orange++
278ffba0ff Update README.md 2025-07-08 17:01:56 +03:00
Orange
647cf02a38 Renames test fixture for clarity. 
Updates the name of the test fixture from "lline_tracer_fixture" to "line_tracer_fixture" for improved readability and consistency in the test code.
 2025-07-07 08:28:29 +03:00
Orange
4be2986681 Fixes potential compile error 
Corrects the usage of `At` method within the unit tests to `at` to resolve a potential compile error due to incorrect case sensitivity.
 2025-07-07 08:18:00 +03:00
Orange
06d9b4c910 fixed naming in tests 2025-07-07 08:02:35 +03:00
Orange++
a074fdcb92 Merge pull request #45 from luadebug/patch-1 
Check for ImGUI dependency in omathConfig.cmake.in
 2025-07-07 05:30:19 +03:00
Saikari
8241d9c355 Update omathConfig.cmake.in 2025-07-07 04:53:56 +03:00
Orange
66258f0f6d Updates CMake export target and namespace. 
Updates the CMake export target and namespace to use the project name,
improving consistency and avoiding naming conflicts.

Adds a simple diagram to the triangle header file.
 2025-07-06 11:14:46 +03:00
Orange
65541fa2c7 Renames library target to project name 
Updates the CMakeLists.txt to use the project name as the library target name instead of hardcoding "omath".

This change ensures consistency and avoids potential conflicts when integrating the library into other projects.
It also aligns the target naming with CMake best practices.
 2025-07-06 11:07:15 +03:00
Orange
7e4a6134bf added new method 2025-06-23 06:14:17 +03:00
Orange
a54a537239 fix 2025-06-17 21:34:25 +03:00
Orange
f01bbde537 added banner to repo 2025-06-17 21:33:39 +03:00
Orange
2c710555d6 fixed example 2025-06-16 01:40:14 +03:00
Orange++
9c2be6306c Merge pull request #39 from orange-cpp/u/orange-cpp/writerside 
U/orange cpp/writerside
 2025-05-21 16:58:19 +03:00
Orange
d37840d4ef fixed stuff 2025-05-21 16:57:17 +03:00
Orange
b4a3b5d529 added text 2025-05-21 16:47:15 +03:00
Orange
c2a772142c fix 2025-05-21 16:47:15 +03:00
Orange
76fca7f527 fix 2025-05-21 16:47:15 +03:00
Orange
73ccd24e3e improved intro 2025-05-21 16:47:15 +03:00
Orange
a642feafb5 added new topic 2025-05-21 16:47:15 +03:00
Orange
faf9f34af8 stipped away text 2025-05-21 16:47:15 +03:00
Orange
b56801ac91 added files 2025-05-21 16:47:15 +03:00
Orange
a81d12d480 fixed version 2025-05-13 09:48:46 +03:00
Orange
17eb0cd0dc improved naming 2025-05-13 09:47:08 +03:00
Orange
52024285d2 added noexcept 2025-05-13 09:34:39 +03:00
Orange
f179aea4d7 removed even float type from vector classes 2025-05-13 09:22:23 +03:00
Orange++
1196bb86b4 Merge pull request #44 from orange-cpp/feature/noexcept 
Feature/noexcept
 2025-05-05 02:34:43 +03:00
Orange
5489c296e9 added more noexcept 2025-05-05 02:24:23 +03:00
Orange
50ddf2d31e added more noexcept 2025-05-05 01:46:50 +03:00
Orange
a6e4c0461d added noexcept 2025-05-05 01:16:12 +03:00
Orange
6749f9f759 added noexcept for color and angles 2025-05-04 19:16:49 +03:00
Orange
9a38d47b0d added noexcept for vector types 2025-05-04 19:13:26 +03:00
Orange
f6f8bba032 changed license to zlib 2025-05-04 19:05:10 +03:00
Orange
ce08fcdd29 removed useless source files 2025-05-04 19:03:18 +03:00
Orange
49ea113348 fixed style 2025-05-04 18:54:33 +03:00
Orange
af21f9a946 removed pow 2025-05-04 18:07:35 +03:00
Orange
f096f7179f fixed clang format 2025-05-04 17:42:32 +03:00
Orange++
e025e99d18 Update README.md 2025-05-04 00:55:35 +03:00
Orange++
30eef59360 Update cmake-multi-platform.yml 
switched to clang

Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
Update cmake-multi-platform.yml
added runtime dir

fix
 2025-05-03 22:51:46 +03:00
Orange++
c2a6cf5c47 Merge pull request #43 from orange-cpp/orange-cpp-ci 
Create cmake-multi-platform.yml
 2025-05-03 22:04:37 +03:00
Orange++
7f55383bc1 Create cmake-multi-platform.yml 2025-05-03 22:04:10 +03:00
Orange
449c60133c bugfix 2025-05-03 21:36:16 +03:00
Orange++
31d3359507 Merge pull request #42 from orange-cpp/feature/new-codestyle 
Feature/new codestyle
 2025-05-03 20:59:06 +03:00
Orange
dd738f365d fix 2025-05-03 20:51:50 +03:00
Orange
b5e788385d fixed style 2025-05-03 20:38:58 +03:00
Orange
df6d75e554 changed code style 2025-05-03 20:31:59 +03:00
Orange
be3fae63b8 patched clang format 2025-05-03 16:50:29 +03:00
Orange
dd731b60c3 updated clang format 2025-05-03 16:39:38 +03:00
152 changed files with 4762 additions and 2858 deletions
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82
.clang-format
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# Generated from CLion C/C++ Code Style settings
---
Language: Cpp
# Generated by CLion for Stroustrup
# The Stroustrup style, named after Bjarne Stroustrup, the creator of C++, is similar to the K&R style but differs
# in its treatment of the class definitions and the placement of braces in certain contexts. The opening brace is
# placed on the same line as the control statement, and the closing brace is on its own line.
BasedOnStyle: LLVM
AccessModifierOffset: -4
AlignConsecutiveAssignments: false
AlignConsecutiveDeclarations: false
AlignOperands: true
AlignConsecutiveAssignments: None
AlignConsecutiveBitFields: None
AlignConsecutiveDeclarations: None
AlignConsecutiveMacros: AcrossEmptyLinesAndComments
AlignTrailingComments: false
AllowShortBlocksOnASingleLine: false
AllowShortBlocksOnASingleLine: Never
AllowShortFunctionsOnASingleLine: None
AlwaysBreakTemplateDeclarations: Yes
BraceWrapping:
AllowShortIfStatementsOnASingleLine: false
AllowShortLoopsOnASingleLine: false
BreakTemplateDeclarations: Leave
BreakBeforeBraces: Custom
BraceWrapping:
AfterCaseLabel: true
AfterClass: true
AfterControlStatement: true
AfterEnum: true
AfterFunction: true
AfterControlStatement: true
SplitEmptyFunction: true
AfterEnum: true
AfterNamespace: true
AfterStruct: true
AfterUnion: true
AfterExternBlock: true
BeforeCatch: false
BeforeElse: false
BeforeCatch: true
BeforeElse: true
BeforeLambdaBody: true
BeforeWhile: false
IndentBraces: false
SplitEmptyFunction: true
BeforeWhile: true
SplitEmptyRecord: true
SplitEmptyNamespace: true
BreakBeforeBraces: Custom
BreakConstructorInitializers: AfterColon
BreakConstructorInitializersBeforeComma: false
BreakBeforeBinaryOperators: NonAssignment
BreakBeforeConceptDeclarations: false
ColumnLimit: 120
ConstructorInitializerAllOnOneLineOrOnePerLine: false
ContinuationIndentWidth: 8
IncludeCategories:
- Regex: '^<.*'
Priority: 1
- Regex: '^".*'
Priority: 2
- Regex: '.*'
Priority: 3
IncludeIsMainRegex: '([-_](test|unittest))?$'
IndentCaseLabels: true
IncludeBlocks: Merge
IndentExternBlock: Indent
IndentRequiresClause: false
IndentWidth: 4
InsertNewlineAtEOF: true
MacroBlockBegin: ''
MacroBlockEnd: ''
MaxEmptyLinesToKeep: 2
ContinuationIndentWidth: 8
KeepEmptyLinesAtTheStartOfBlocks: false
NamespaceIndentation: All
PointerAlignment: Left
SpaceAfterCStyleCast: true
SortUsingDeclarations: true
SpaceAfterTemplateKeyword: false
SpaceBeforeCtorInitializerColon: false
SpaceBeforeParens: Custom
SpaceBeforeParensOptions:
AfterControlStatements: true
AfterFunctionDeclarationName: false
AfterFunctionDefinitionName: false
AfterForeachMacros: true
AfterIfMacros: true
AfterOverloadedOperator: false
BeforeNonEmptyParentheses: false
SpaceBeforeRangeBasedForLoopColon: false
SpaceInEmptyParentheses: false
SpacesInAngles: false
SpacesInConditionalStatement: false
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
TabWidth: 4
...
SpacesInConditionalStatement: false
SpacesInContainerLiterals: false
SpacesInParentheses: false

38
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---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Desktop (please complete the following information):**
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]
**Smartphone (please complete the following information):**
- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]
**Additional context**
Add any other context about the problem here.

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---
name: Custom issue template
about: Describe this issue template's purpose here.
title: ''
labels: ''
assignees: ''
---

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@@ -0,0 +1,20 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.

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name: Omath CI (Arch Linux / Windows)
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
concurrency:
group: ci-${{ github.ref }}
cancel-in-progress: true
##############################################################################
# 1) ARCH LINUX – Clang / Ninja
##############################################################################
jobs:
arch-build-and-test:
name: Arch Linux (Clang)
runs-on: ubuntu-latest
container: archlinux:latest
steps:
- name: Install basic tool-chain with pacman
shell: bash
run: |
pacman -Sy --noconfirm archlinux-keyring
pacman -Syu --noconfirm --needed \
git base-devel clang cmake ninja
- name: Checkout repository (with sub-modules)
uses: actions/checkout@v4
with:
submodules: recursive
- name: Configure (cmake --preset)
shell: bash
run: cmake --preset linux-release -DOMATH_BUILD_TESTS=ON
- name: Build
shell: bash
run: cmake --build cmake-build/build/linux-release --target all
- name: Run unit_tests
shell: bash
run: ./out/Release/unit_tests
##############################################################################
# 2) Windows – MSVC / Ninja
##############################################################################
windows-build-and-test:
name: Windows (MSVC)
runs-on: windows-latest
steps:
- name: Checkout repository (with sub-modules)
uses: actions/checkout@v4
with:
submodules: recursive
- name: Install Ninja
uses: seanmiddleditch/gha-setup-ninja@v4
- name: Set up MSVC developer command-prompt
uses: ilammy/msvc-dev-cmd@v1
- name: Configure (cmake --preset)
shell: bash
run: cmake --preset windows-release -DOMATH_BUILD_TESTS=ON
- name: Build
shell: bash
run: cmake --build cmake-build/build/windows-release --target all
- name: Run unit_tests.exe
shell: bash
run: ./out/Release/unit_tests.exe

5
.gitignore vendored
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/cmake-build/
/.idea
/out
*.DS_Store
*.DS_Store
/extlibs/vcpkg
.idea/workspace.xml

8
.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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<component name="ProjectCodeStyleConfiguration">
<code_scheme name="Project" version="173">
<RiderCodeStyleSettings>
<option name="/Default/CodeStyle/CodeFormatting/CppClangFormat/EnableClangFormatSupport/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/EditorConfig/EnableClangFormatSupport/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_BINARY_EXPRESSIONS_CHAIN/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_CALLS_CHAIN/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_EXPRESSION/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_FOR_STMT/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTIPLE_DECLARATION/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_TERNARY/@EntryValue" value="ALIGN_ALL" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/BLANK_LINES_AROUND_CLASS_DEFINITION/@EntryValue" value="1" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/KEEP_BLANK_LINES_IN_DECLARATIONS/@EntryValue" value="2" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/KEEP_BLANK_LINES_IN_CODE/@EntryValue" value="2" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/KEEP_USER_LINEBREAKS/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INDENT_CASE_FROM_SWITCH/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INDENT_COMMENT/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INT_ALIGN_EQ/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SIMPLE_BLOCK_STYLE/@EntryValue" value="LINE_BREAK" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_COMMA_IN_TEMPLATE_ARGS/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_COMMA_IN_TEMPLATE_PARAMS/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_FOR_SEMICOLON/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_BEFORE_FOR_SEMICOLON/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_UNARY_OPERATOR/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_WITHIN_ARRAY_ACCESS_BRACKETS/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_WITHIN_CAST_EXPRESSION_PARENTHESES/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_WITHIN_EMPTY_INITIALIZER_BRACES/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_WITHIN_EMPTY_METHOD_PARENTHESES/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_WITHIN_INITIALIZER_BRACES/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPECIAL_ELSE_IF_TREATMENT/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_CAST_EXPRESSION_PARENTHESES/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/WRAP_AFTER_BINARY_OPSIGN/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/WRAP_BEFORE_TERNARY_OPSIGNS/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/CASE_BLOCK_BRACES/@EntryValue" value="NEXT_LINE" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/BLANK_LINES_AROUND_FUNCTION_DECLARATION/@EntryValue" value="1" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/BLANK_LINES_AROUND_FUNCTION_DEFINITION/@EntryValue" value="1" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/PLACE_WHILE_ON_NEW_LINE/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/PLACE_ELSE_ON_NEW_LINE/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/PLACE_CATCH_ON_NEW_LINE/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/NAMESPACE_INDENTATION/@EntryValue" value="All" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_ARGUMENT/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_EXTENDS_LIST/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_PARAMETER/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_TYPE_ARGUMENT/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGN_MULTILINE_TYPE_PARAMETER/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/BLANK_LINES_AROUND_DECLARATIONS/@EntryValue" value="0" type="int" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INDENT_ACCESS_SPECIFIERS_FROM_CLASS/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INDENT_CLASS_MEMBERS_FROM_ACCESS_SPECIFIERS/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/LINE_BREAK_AFTER_COLON_IN_MEMBER_INITIALIZER_LISTS/@EntryValue" value="ON_SINGLE_LINE" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/MEMBER_INITIALIZER_LIST_STYLE/@EntryValue" value="DO_NOT_CHANGE" type="string" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/PLACE_NAMESPACE_DEFINITIONS_ON_SAME_LINE/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_COLON_IN_BITFIELD_DECLARATOR/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_BEFORE_COLON_IN_BITFIELD_DECLARATOR/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_EXTENDS_COLON/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_BEFORE_EXTENDS_COLON/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_FOR_COLON/@EntryValue" value="true" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_BEFORE_FOR_COLON/@EntryValue" value="false" type="bool" />
<option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_PTR_IN_DATA_MEMBER/@EntryValue" value="false" type="bool" />
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6
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435
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<option name="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=B6E900853D6D05429D8C57765B2E546A/@EntryIndexRemoved" value="true" type="bool" />
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<option name="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=BF0D1AE66D64FE4FAF613448A12051A0/@EntryIndexRemoved" value="true" type="bool" />
<option name="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=BF0D1AE66D64FE4FAF613448A12051A0/@EntryIndexedValue" value="" type="string" />
<option name="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=DC1F6BB6E0EFFC49A38E940DB8A84CF6/@EntryIndexedValue" value="&lt;NamingElement Priority=&quot;5&quot; Title=&quot;Variables&quot;&gt;&lt;Descriptor Static=&quot;Indeterminate&quot; Constexpr=&quot;Indeterminate&quot; Const=&quot;Indeterminate&quot; Volatile=&quot;Indeterminate&quot; Accessibility=&quot;NOT_APPLICABLE&quot;&gt;&lt;type Name=&quot;global variable&quot; /&gt;&lt;type Name=&quot;lambda&quot; /&gt;&lt;type Name=&quot;local variable&quot; /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect=&quot;True&quot; WarnAboutPrefixesAndSuffixes=&quot;False&quot; Prefix=&quot;&quot; Suffix=&quot;&quot; Style=&quot;aa_bb&quot; /&gt;&lt;/NamingElement&gt;" type="string" />
</component>
</project>

8
.idea/inspectionProfiles/Project_Default.xml generated Normal file
View File

@@ -0,0 +1,8 @@
<component name="InspectionProjectProfileManager">
<profile version="1.0">
<option name="myName" value="Project Default" />
<inspection_tool class="CppInconsistentNaming" enabled="true" level="HINT" enabled_by_default="true" />
<inspection_tool class="CppTabsAreDisallowed" enabled="true" level="WARNING" enabled_by_default="true" />
<inspection_tool class="CppUnnecessaryWhitespace" enabled="true" level="WARNING" enabled_by_default="true" />
</profile>
</component>

7
.idea/inspectionProfiles/profiles_settings.xml generated Normal file
View File

@@ -0,0 +1,7 @@
<component name="InspectionProjectProfileManager">
<settings>
<option name="PROJECT_PROFILE" value="Default" />
<option name="USE_PROJECT_PROFILE" value="false" />
<version value="1.0" />
</settings>
</component>

12
.idea/misc.xml generated Normal file
View File

@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CMakePythonSetting">
<option name="pythonIntegrationState" value="YES" />
</component>
<component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
<component name="CidrRootsConfiguration">
<excludeRoots>
<file path="$PROJECT_DIR$/cmake-build" />
</excludeRoots>
</component>
</project>

8
.idea/modules.xml generated Normal file
View File

@@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/omath.iml" filepath="$PROJECT_DIR$/.idea/omath.iml" />
</modules>
</component>
</project>

2
.idea/omath.iml generated Normal file
View File

@@ -0,0 +1,2 @@
<?xml version="1.0" encoding="UTF-8"?>
<module classpath="CMake" type="CPP_MODULE" version="4" />

7
.idea/vcs.xml generated Normal file
View File

@@ -0,0 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
<mapping directory="$PROJECT_DIR$/extlibs/googletest" vcs="Git" />
</component>
</project>

87
CMakeLists.txt
View File

@@ -1,11 +1,11 @@
cmake_minimum_required(VERSION 3.26)
project(omath VERSION 1.0.1 LANGUAGES CXX)
project(omath VERSION 3.5.0 LANGUAGES CXX)
include(CMakePackageConfigHelpers)
option(OMATH_BUILD_TESTS "Build unit tests" OFF)
option(OMATH_BUILD_TESTS "Build unit tests" ${PROJECT_IS_TOP_LEVEL})
option(OMATH_THREAT_WARNING_AS_ERROR "Set highest level of warnings and force compiler to treat them as errors" ON)
option(OMATH_BUILD_AS_SHARED_LIBRARY "Build Omath as .so or .dll" OFF)
option(OMATH_USE_AVX2 "Omath will use AVX2 to boost performance" ON)
@@ -13,27 +13,40 @@ option(OMATH_IMGUI_INTEGRATION "Omath will define method to convert omath types
option(OMATH_BUILD_EXAMPLES "Build example projects with you can learn & play" OFF)
option(OMATH_STATIC_MSVC_RUNTIME_LIBRARY "Force Omath to link static runtime" OFF)
option(OMATH_SUPRESS_SAFETY_CHECKS "Supress some safety checks in release build to improve general performance" ON)
option(OMATH_USE_UNITY_BUILD "Will enable unity build to speed up compilation" ON)
option(OMATH_USE_UNITY_BUILD "Will enable unity build to speed up compilation" OFF)
option(OMATH_ENABLE_LEGACY "Will enable legacy classes that MUST be used ONLY for backward compatibility" OFF)
message(STATUS "[${PROJECT_NAME}]: Building on ${CMAKE_HOST_SYSTEM_NAME}")
message(STATUS "[${PROJECT_NAME}]: Warnings as errors ${OMATH_THREAT_WARNING_AS_ERROR}")
message(STATUS "[${PROJECT_NAME}]: Build unit tests ${OMATH_BUILD_TESTS}")
message(STATUS "[${PROJECT_NAME}]: As dynamic library ${OMATH_BUILD_AS_SHARED_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: Static C++ runtime ${OMATH_STATIC_MSVC_RUNTIME_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: CMake unity build ${OMATH_USE_UNITY_BUILD}")
message(STATUS "[${PROJECT_NAME}]: Example projects ${OMATH_BUILD_EXAMPLES}")
message(STATUS "[${PROJECT_NAME}]: AVX2 feature status ${OMATH_USE_AVX2}")
message(STATUS "[${PROJECT_NAME}]: ImGUI integration feature status ${OMATH_IMGUI_INTEGRATION}")
message(STATUS "[${PROJECT_NAME}]: Legacy features support ${OMATH_ENABLE_LEGACY}")
file(GLOB_RECURSE OMATH_SOURCES CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp")
file(GLOB_RECURSE OMATH_HEADERS CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp")
if (OMATH_BUILD_AS_SHARED_LIBRARY)
add_library(omath SHARED ${OMATH_SOURCES} ${OMATH_HEADERS})
add_library(${PROJECT_NAME} SHARED ${OMATH_SOURCES} ${OMATH_HEADERS})
else ()
add_library(omath STATIC ${OMATH_SOURCES} ${OMATH_HEADERS})
add_library(${PROJECT_NAME} STATIC ${OMATH_SOURCES} ${OMATH_HEADERS})
endif ()
message(STATUS "Building on ${CMAKE_HOST_SYSTEM_NAME}")
add_library(omath::omath ALIAS omath)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_VERSION="${PROJECT_VERSION}")
if (OMATH_IMGUI_INTEGRATION)
target_compile_definitions(omath PUBLIC OMATH_IMGUI_INTEGRATION)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_IMGUI_INTEGRATION)
# IMGUI is being linked as submodule
if (TARGET imgui)
target_link_libraries(omath PUBLIC imgui)
target_link_libraries(${PROJECT_NAME} PUBLIC imgui)
install(TARGETS imgui
EXPORT omathTargets
ARCHIVE DESTINATION lib
@@ -42,47 +55,52 @@ if (OMATH_IMGUI_INTEGRATION)
else ()
# Assume that IMGUI linked via VCPKG.
find_package(imgui CONFIG REQUIRED)
target_link_libraries(omath PUBLIC imgui::imgui)
target_link_libraries(${PROJECT_NAME} PUBLIC imgui::imgui)
endif ()
endif ()
if (OMATH_USE_AVX2)
target_compile_definitions(omath PUBLIC OMATH_USE_AVX2)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_USE_AVX2)
endif ()
if (OMATH_SUPRESS_SAFETY_CHECKS)
target_compile_definitions(omath PUBLIC OMATH_SUPRESS_SAFETY_CHECKS)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_SUPRESS_SAFETY_CHECKS)
endif ()
set_target_properties(omath PROPERTIES
if (OMATH_ENABLE_LEGACY)
target_compile_options(${PROJECT_NAME} PUBLIC OMATH_ENABLE_LEGACY)
endif ()
set_target_properties(${PROJECT_NAME} PROPERTIES
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}"
CXX_STANDARD 23
CXX_STANDARD_REQUIRED ON)
if (OMATH_USE_UNITY_BUILD)
set_target_properties(omath PROPERTIES
set_target_properties(${PROJECT_NAME} PROPERTIES
UNITY_BUILD ON
UNITY_BUILD_BATCH_SIZE 20)
endif ()
if (OMATH_STATIC_MSVC_RUNTIME_LIBRARY)
set_target_properties(omath PROPERTIES
set_target_properties(${PROJECT_NAME} PROPERTIES
MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>"
)
endif ()
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
target_compile_options(omath PRIVATE -mavx2 -mfma)
target_compile_options(${PROJECT_NAME} PRIVATE -mavx2 -mfma)
endif ()
target_compile_features(omath PUBLIC cxx_std_23)
target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)
if (OMATH_BUILD_TESTS)
add_subdirectory(extlibs)
add_subdirectory(tests)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_BUILD_TESTS)
endif ()
if (OMATH_BUILD_EXAMPLES)
@@ -90,12 +108,17 @@ if (OMATH_BUILD_EXAMPLES)
endif ()
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND OMATH_THREAT_WARNING_AS_ERROR)
target_compile_options(omath PRIVATE /W4 /WX)
target_compile_options(${PROJECT_NAME} PRIVATE /W4 /WX)
elseif (OMATH_THREAT_WARNING_AS_ERROR)
target_compile_options(omath PRIVATE -Wall -Wextra -Wpedantic -Werror)
target_compile_options(${PROJECT_NAME} PRIVATE -Wall -Wextra -Wpedantic -Werror)
endif ()
target_include_directories(omath
# Windows SDK redefine min/max via preprocessor and break std::min and std::max
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
target_compile_definitions(${PROJECT_NAME} INTERFACE NOMINMAX)
endif ()
target_include_directories(${PROJECT_NAME}
PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> # Use this path when building the project
$<INSTALL_INTERFACE:include> # Use this path when the project is installed
@@ -105,21 +128,21 @@ target_include_directories(omath
# Installation rules
# Install the library
install(TARGETS omath
EXPORT omathTargets
ARCHIVE DESTINATION lib COMPONENT omath # For static libraries
LIBRARY DESTINATION lib COMPONENT omath # For shared libraries
RUNTIME DESTINATION bin COMPONENT omath # For executables (on Windows)
install(TARGETS ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}Targets
ARCHIVE DESTINATION lib COMPONENT ${PROJECT_NAME} # For static libraries
LIBRARY DESTINATION lib COMPONENT ${PROJECT_NAME} # For shared libraries
RUNTIME DESTINATION bin COMPONENT ${PROJECT_NAME} # For executables (on Windows)
)
# Install headers as part of omath_component
install(DIRECTORY include/ DESTINATION include COMPONENT omath)
install(DIRECTORY include/ DESTINATION include COMPONENT ${PROJECT_NAME})
# Export omath target for CMake find_package support, also under omath_component
install(EXPORT omathTargets
FILE omathTargets.cmake
NAMESPACE omath::
DESTINATION lib/cmake/omath COMPONENT omath
install(EXPORT ${PROJECT_NAME}Targets
FILE ${PROJECT_NAME}Targets.cmake
NAMESPACE ${PROJECT_NAME}::
DESTINATION lib/cmake/${PROJECT_NAME} COMPONENT ${PROJECT_NAME}
)
@@ -134,12 +157,12 @@ write_basic_package_version_file(
configure_package_config_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/omathConfig.cmake.in" # Path to the .in file
"${CMAKE_CURRENT_BINARY_DIR}/omathConfig.cmake" # Output path for the generated file
INSTALL_DESTINATION lib/cmake/omath
INSTALL_DESTINATION lib/cmake/${PROJECT_NAME}
)
# Install the generated config files
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/omathConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/omathConfigVersion.cmake"
DESTINATION lib/cmake/omath
DESTINATION lib/cmake/${PROJECT_NAME}
)

4
CMakePresets.json
View File

@@ -40,8 +40,8 @@
"binaryDir": "${sourceDir}/cmake-build/build/${presetName}",
"installDir": "${sourceDir}/cmake-build/install/${presetName}",
"cacheVariables": {
"CMAKE_C_COMPILER": "gcc",
"CMAKE_CXX_COMPILER": "g++"
"CMAKE_C_COMPILER": "clang",
"CMAKE_CXX_COMPILER": "clang++"
},
"condition": {
"type": "equals",

32
CONTRIBUTING.md Normal file
View File

@@ -0,0 +1,32 @@
## 🤝 Contributing to OMath or other Orange's Projects
### ❕ Prerequisites
- A working up-to-date OMath installation
- C++ knowledge
- Git knowledge
- Ability to ask for help (Feel free to create empty pull-request or PM a maintainer
in [Telegram](https://t.me/orange_cpp))
### ⏬ Setting up OMath
Please read INSTALL.md file in repository
### 🔀 Pull requests and Branches
In order to send code back to the official OMath repository, you must first create a copy of OMath on your github
account ([fork](https://help.github.com/articles/creating-a-pull-request-from-a-fork/)) and
then [create a pull request](https://help.github.com/articles/creating-a-pull-request-from-a-fork/) back to OMath.
OMath developement is performed on multiple branches. Changes are then pull requested into master. By default, changes
merged into master will not roll out to stable build users unless the `stable` tag is updated.
### 📜 Code-Style
The orange code-style can be found in `.clang-format`.
### 📦 Building
OMath has already created the `cmake-build` and `out` directories where cmake/bin files are located. By default, you
can build OMath by running `cmake --build cmake-build/build/windows-release --target omath -j 6` in the source
directory.

4
CREDITS.md
View File

@@ -2,10 +2,10 @@
Thanks to everyone who made this possible, including:
- Saikari aka luadebug for VCPKG port.
- Saikari aka luadebug for VCPKG port and awesome new initial logo design.
And a big hand to everyone else who has contributed over the past!
THANKS! <3
-- Orange++ <orange-cpp@yandex.ru>
-- Orange++ <orange_github@proton.me>

14
INSTALL.md
View File

@@ -14,6 +14,20 @@ target_link_libraries(main PRIVATE omath::omath)
```
For detailed commands on installing different versions and more information, please refer to Microsoft's [official instructions](https://learn.microsoft.com/en-us/vcpkg/get_started/overview).
## <img width="28px" src="https://xmake.io/assets/img/logo.svg" /> Using xrepo
**Note**: Support xrepo for package management
1. Install [xmake](https://xmake.io/)
2. Run the following command to install the omath package:
```
xrepo install omath
```
xmake.lua
```xmake
add_requires("omath")
target("...")
add_packages("omath")
```
## <img width="28px" src="https://upload.wikimedia.org/wikipedia/commons/e/ef/CMake_logo.svg?" /> Build from source using CMake
1. **Preparation**

31
LICENSE
View File

@@ -1,9 +1,28 @@
The MIT License (MIT)
Copyright (C) 2024-2025 Orange++ <orange_github@proton.me>
Copyright (c) 2024 Orange++
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
4. If you are an employee, contractor, volunteer, representative,
or have any other affiliation (past, present, or future)
with any of the following entities:
* "Yandex" LLC
* "Rutube" LLC
Or if you represent or are associated with any legal, organizational, or
professional entity providing services to or on behalf of the aforementioned entities:
You are expressly forbidden from accessing, using, modifying, distributing, or
interacting with the Software and its source code in any form. You must immediately
delete or destroy any physical or digital copies of the Software and/or
its source code, including any derivative works, tools, or information obtained from the Software.

117
README.md
View File

@@ -1,15 +1,45 @@
<div align = center>
![banner](https://i.imgur.com/SM9ccP6.png)
![banner](.github/images/logos/omath_logo_macro.png)
![GitHub License](https://img.shields.io/github/license/orange-cpp/omath)
![Static Badge](https://img.shields.io/badge/license-libomath-orange)
![GitHub contributors](https://img.shields.io/github/contributors/orange-cpp/omath)
![GitHub top language](https://img.shields.io/github/languages/top/orange-cpp/omath)
[![CodeFactor](https://www.codefactor.io/repository/github/orange-cpp/omath/badge)](https://www.codefactor.io/repository/github/orange-cpp/omath)
![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/orange-cpp/omath/cmake-multi-platform.yml)
[![Vcpkg package](https://repology.org/badge/version-for-repo/vcpkg/orange-math.svg)](https://repology.org/project/orange-math/versions)
![GitHub forks](https://img.shields.io/github/forks/orange-cpp/omath)
[![discord badge](https://dcbadge.limes.pink/api/server/https://discord.gg/eDgdaWbqwZ?style=flat)](https://discord.gg/eDgdaWbqwZ)
[![telegram badge](https://img.shields.io/badge/Telegram-2CA5E0?style=flat-squeare&logo=telegram&logoColor=white)](https://t.me/orangennotes)
OMath is a 100% independent, constexpr template blazingly fast math library that doesn't have legacy C++ code.
It provides the latest features, is highly customizable, has all for cheat development, DirectX/OpenGL/Vulkan support, premade support for different game engines, much more constexpr stuff than in other libraries and more...
<br>
<br>
---
**[<kbd> <br> Install <br> </kbd>][INSTALL]**
**[<kbd> <br> Examples <br> </kbd>][EXAMPLES]**
**[<kbd> <br> Contribute <br> </kbd>][CONTRIBUTING]**
---
<br>
</div>
Oranges's Math Library (omath) is a comprehensive, open-source library aimed at providing efficient, reliable, and versatile mathematical functions and algorithms. Developed primarily in C++, this library is designed to cater to a wide range of mathematical operations essential in scientific computing, engineering, and academic research.
<div align = center>
<a href="https://www.star-history.com/#orange-cpp/omath&Date">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=orange-cpp/omath&type=Date&theme=dark" />
<source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=orange-cpp/omath&type=Date" />
<img alt="Star History Chart" src="https://api.star-history.com/svg?repos=orange-cpp/omath&type=Date" />
</picture>
</a>
</div>
## 👁‍🗨 Features
- **Efficiency**: Optimized for performance, ensuring quick computations using AVX2.
@@ -21,13 +51,37 @@ Oranges's Math Library (omath) is a comprehensive, open-source library aimed at
- **No Additional Dependencies**: No additional dependencies need to use OMath except unit test execution
- **Ready for meta-programming**: Omath use templates for common types like Vectors, Matrixes etc, to handle all types!
# Gallery
<br>
[![Youtube Video](.github/images/yt_previews/img.png)](https://youtu.be/lM_NJ1yCunw?si=-Qf5yzDcWbaxAXGQ)
<br>
![APEX Preview]
<br>
![BO2 Preview]
<br>
![CS2 Preview]
<br>
<br>
## Supported Render Pipelines
| ENGINE | SUPPORT |
|----------|---------|
| Source | ✅YES |
| Unity | ✅YES |
| IWEngine | ✅YES |
| Unreal | ❌NO |
| OpenGL | ✅YES |
| Unreal | ✅YES |
## Supported Operating Systems
@@ -37,40 +91,37 @@ Oranges's Math Library (omath) is a comprehensive, open-source library aimed at
| Linux | ✅YES |
| Darwin (MacOS) | ✅YES |
## ⏬ Installation
Please read our [installation guide](https://github.com/orange-cpp/omath/blob/main/INSTALL.md). If this link doesn't work check out INSTALL.md file.
## ❔ Usage
Simple world to screen function
ESP example
```c++
TEST(UnitTestProjection, IsPointOnScreen)
{
const omath::projection::Camera camera({0.f, 0.f, 0.f}, {0, 0.f, 0.f} , {1920.f, 1080.f}, 110.f, 0.1f, 500.f);
omath::source_engine::Camera cam{localPlayer.GetCameraOrigin(),
localPlayer.GetAimPunch(),
{1920.f, 1080.f},
localPlayer.GetFieldOfView(),
0.01.f, 30000.f};
const auto proj = camera.WorldToScreen({100, 0, 15});
EXPECT_TRUE(proj.has_value());
for (auto ent: apex_sdk::EntityList::GetAllEntities())
{
const auto bottom = cam.world_to_screen(ent.GetOrigin());
const auto top = cam.world_to_screen(ent.GetBonePosition(8) + omath::Vector3<float>{0, 0, 10});
const auto ent_health = ent.GetHealth();
if (!top || !bottom || ent_health <= 0)
continue;
// esp rendering...
}
```
## Showcase
<details>
<summary>OMATH for making cheats (click to open)</summary>
With `omath/projection` module you can achieve simple ESP hack for powered by Source/Unreal/Unity engine games, like [Apex Legends](https://store.steampowered.com/app/1172470/Apex_Legends/).
![banner](https://i.imgur.com/lcJrfcZ.png)
Or for InfinityWard Engine based games. Like Call of Duty Black Ops 2!
![banner](https://i.imgur.com/F8dmdoo.png)
Or create simple trigger bot with embeded traceline from omath::collision::LineTrace
![banner](https://i.imgur.com/fxMjRKo.jpeg)
Or even advanced projectile aimbot
[Watch Video](https://youtu.be/lM_NJ1yCunw?si=5E87OrQMeypxSJ3E)
</details>
## 🫵🏻 Contributing
Contributions to `omath` are welcome! Please read `CONTRIBUTING.md` for details on our code of conduct and the process for submitting pull requests.
## 📜 License
This project is licensed under the MIT - see the `LICENSE` file for details.
## 💘 Acknowledgments
- [All contributors](https://github.com/orange-cpp/omath/graphs/contributors)
<!----------------------------------{ Images }--------------------------------->
[APEX Preview]: .github/images/showcase/apex.png
[BO2 Preview]: .github/images/showcase/cod_bo2.png
[CS2 Preview]: .github/images/showcase/cs2.jpeg
<!----------------------------------{ Buttons }--------------------------------->
[INSTALL]: INSTALL.md
[CONTRIBUTING]: CONTRIBUTING.md
[EXAMPLES]: examples

2
SECURITY.md
View File

@@ -2,4 +2,4 @@
## Reporting a Vulnerability
Please report security issues to `orange-cpp@yandex.ru`
Please report security issues to `orange_github@proton.me`

4
cmake/omathConfig.cmake.in
View File

@@ -2,6 +2,10 @@
include(CMakeFindDependencyMacro)
if (@OMATH_IMGUI_INTEGRATION@)
find_dependency(imgui CONFIG)
endif()
# Load the targets for the omath library
include("${CMAKE_CURRENT_LIST_DIR}/omathTargets.cmake")
check_required_components(omath)

12
examples/example_proj_mat_builder.cpp
View File

@@ -15,8 +15,8 @@ int main()
float fov = 0;
float near = 0;
float far = 0;
float viewPortWidth = 0;
float viewPortHeight = 0;
float view_port_width = 0;
float view_port_height = 0;
std::print("Enter camera fov: ");
std::cin >> fov;
@@ -28,13 +28,13 @@ int main()
std::cin >> far;
std::print("Enter camera screen width: ");
std::cin >> viewPortWidth;
std::cin >> view_port_width;
std::print("Enter camera screen height: ");
std::cin >> viewPortHeight;
std::cin >> view_port_height;
const auto mat =
omath::opengl_engine::CalcPerspectiveProjectionMatrix(fov, viewPortWidth / viewPortHeight, near, far);
omath::opengl_engine::calc_perspective_projection_matrix(fov, view_port_width / view_port_height, near, far);
std::print("{}", mat.ToString());
std::print("{}", mat.to_string());
};

2
extlibs/googletest

Submodule extlibs/googletest updated: d83fee138a...52eb8108c5

11
include/omath/3d_primitives/box.hpp
View File

@@ -3,15 +3,14 @@
//
#pragma once
#include <array>
#include "omath/linear_algebra/vector3.hpp"
#include "omath/triangle.hpp"
#include "omath/vector3.hpp"
#include <array>
namespace omath::primitives
{
[[nodiscard]]
std::array<Triangle<Vector3<float>>, 12> CreateBox(const Vector3<float>& top, const Vector3<float>& bottom,
const Vector3<float>& dirForward, const Vector3<float>& dirRight,
float ratio = 4.f);
std::array<Triangle<Vector3<float>>, 12> create_box(const Vector3<float>& top, const Vector3<float>& bottom,
const Vector3<float>& dir_forward, const Vector3<float>& dir_right,
float ratio = 4.f) noexcept;
}

16
include/omath/3d_primitives/plane.hpp Normal file
View File

@@ -0,0 +1,16 @@
//
// Created by Vlad on 8/28/2025.
//
#pragma once
#include "omath/linear_algebra/vector3.hpp"
#include "omath/triangle.hpp"
#include <array>
namespace omath::primitives
{
[[nodiscard]]
std::array<Triangle<Vector3<float>>, 2> create_plane(const Vector3<float>& vertex_a,
const Vector3<float>& vertex_b,
const Vector3<float>& direction, float size) noexcept;
}

85
include/omath/angle.hpp
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@@ -3,10 +3,10 @@
//
#pragma once
#include <algorithm>
#include <utility>
#include "omath/angles.hpp"
#include <algorithm>
#include <format>
#include <utility>
namespace omath
{
@@ -17,14 +17,14 @@ namespace omath
};
template<class Type = float, Type min = Type(0), Type max = Type(360), AngleFlags flags = AngleFlags::Normalized>
requires std::is_arithmetic_v<Type>
requires std::is_arithmetic_v<Type>
class Angle
{
Type m_angle;
constexpr explicit Angle(const Type& degrees)
constexpr explicit Angle(const Type& degrees) noexcept
{
if constexpr (flags == AngleFlags::Normalized)
m_angle = angles::WrapAngle(degrees, min, max);
m_angle = angles::wrap_angle(degrees, min, max);
else if constexpr (flags == AngleFlags::Clamped)
m_angle = std::clamp(degrees, min, max);
@@ -37,71 +37,71 @@ namespace omath
public:
[[nodiscard]]
constexpr static Angle FromDegrees(const Type& degrees)
constexpr static Angle from_degrees(const Type& degrees) noexcept
{
return Angle{degrees};
}
constexpr Angle() : m_angle(0)
constexpr Angle() noexcept: m_angle(0)
{
}
[[nodiscard]]
constexpr static Angle FromRadians(const Type& degrees)
constexpr static Angle from_radians(const Type& degrees) noexcept
{
return Angle{angles::RadiansToDegrees<Type>(degrees)};
return Angle{angles::radians_to_degrees<Type>(degrees)};
}
[[nodiscard]]
constexpr const Type& operator*() const
constexpr const Type& operator*() const noexcept
{
return m_angle;
}
[[nodiscard]]
constexpr Type AsDegrees() const
constexpr Type as_degrees() const noexcept
{
return m_angle;
}
[[nodiscard]]
constexpr Type AsRadians() const
constexpr Type as_radians() const noexcept
{
return angles::DegreesToRadians(m_angle);
return angles::degrees_to_radians(m_angle);
}
[[nodiscard]]
Type Sin() const
Type sin() const noexcept
{
return std::sin(AsRadians());
return std::sin(as_radians());
}
[[nodiscard]]
Type Cos() const
Type cos() const noexcept
{
return std::cos(AsRadians());
return std::cos(as_radians());
}
[[nodiscard]]
Type Tan() const
Type tan() const noexcept
{
return std::tan(AsRadians());
return std::tan(as_radians());
}
[[nodiscard]]
Type Atan() const
Type atan() const noexcept
{
return std::atan(AsRadians());
return std::atan(as_radians());
}
[[nodiscard]]
Type Cot() const
Type cot() const noexcept
{
return Cos() / Sin();
return cos() / sin();
}
constexpr Angle& operator+=(const Angle& other)
constexpr Angle& operator+=(const Angle& other) noexcept
{
if constexpr (flags == AngleFlags::Normalized)
m_angle = angles::WrapAngle(m_angle + other.m_angle, min, max);
m_angle = angles::wrap_angle(m_angle + other.m_angle, min, max);
else if constexpr (flags == AngleFlags::Clamped)
m_angle = std::clamp(m_angle + other.m_angle, min, max);
@@ -115,21 +115,21 @@ namespace omath
}
[[nodiscard]]
constexpr std::partial_ordering operator<=>(const Angle& other) const = default;
constexpr std::partial_ordering operator<=>(const Angle& other) const noexcept = default;
constexpr Angle& operator-=(const Angle& other)
constexpr Angle& operator-=(const Angle& other) noexcept
{
return operator+=(-other);
}
[[nodiscard]]
constexpr Angle& operator+(const Angle& other)
constexpr Angle operator+(const Angle& other) noexcept
{
if constexpr (flags == AngleFlags::Normalized)
return {angles::WrapAngle(m_angle + other.m_angle, min, max)};
return Angle{angles::wrap_angle(m_angle + other.m_angle, min, max)};
else if constexpr (flags == AngleFlags::Clamped)
return {std::clamp(m_angle + other.m_angle, min, max)};
return Angle{std::clamp(m_angle + other.m_angle, min, max)};
else
static_assert(false);
@@ -138,15 +138,34 @@ namespace omath
}
[[nodiscard]]
constexpr Angle& operator-(const Angle& other)
constexpr Angle operator-(const Angle& other) noexcept
{
return operator+(-other);
}
[[nodiscard]]
constexpr Angle operator-() const
constexpr Angle operator-() const noexcept
{
return Angle{-m_angle};
}
};
} // namespace omath
template<class T, T MinV, T MaxV, omath::AngleFlags F, class CharT>
struct std::formatter<omath::Angle<T, MinV, MaxV, F>, CharT>
{
using AngleT = omath::Angle<T, MinV, MaxV, F>;
[[nodiscard]]
static constexpr auto parse(std::basic_format_parse_context<CharT>& ctx)
-> std::basic_format_parse_context<CharT>::iterator
{
return ctx.begin();
}
template<class FormatContext>
auto format(const AngleT& deg, FormatContext& ctx) const
{
if constexpr (std::is_same_v<typename FormatContext::char_type, char>)
return std::format_to(ctx.out(), "{}deg", deg.as_degrees());
return std::format_to(ctx.out(), L"{}deg", deg.as_degrees());
}
};

51
include/omath/angles.hpp
View File

@@ -10,54 +10,55 @@ namespace omath::angles
{
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type RadiansToDegrees(const Type& radians)
[[nodiscard]] constexpr Type radians_to_degrees(const Type& radians) noexcept
{
return radians * (Type(180) / std::numbers::pi_v<Type>);
return radians * (static_cast<Type>(180) / std::numbers::pi_v<Type>);
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type DegreesToRadians(const Type& degrees)
[[nodiscard]] constexpr Type degrees_to_radians(const Type& degrees) noexcept
{
return degrees * (std::numbers::pi_v<Type> / Type(180));
}
template<class type>
requires std::is_floating_point_v<type>
[[nodiscard]] type HorizontalFovToVertical(const type& horFov, const type& aspect)
{
const auto fovRad = DegreesToRadians(horFov);
const auto vertFov = type(2) * std::atan(std::tan(fovRad / type(2)) / aspect);
return RadiansToDegrees(vertFov);
return degrees * (std::numbers::pi_v<Type> / static_cast<Type>(180));
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] Type VerticalFovToHorizontal(const Type& vertFov, const Type& aspect)
[[nodiscard]] Type horizontal_fov_to_vertical(const Type& horizontal_fov, const Type& aspect) noexcept
{
const auto fovRad = DegreesToRadians(vertFov);
const auto fov_rad = degrees_to_radians(horizontal_fov);
const auto horFov = Type(2) * std::atan(std::tan(fovRad / Type(2)) * aspect);
const auto vert_fov = static_cast<Type>(2) * std::atan(std::tan(fov_rad / static_cast<Type>(2)) / aspect);
return RadiansToDegrees(horFov);
return radians_to_degrees(vert_fov);
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] Type vertical_fov_to_horizontal(const Type& vertical_fov, const Type& aspect) noexcept
{
const auto fov_as_radians = degrees_to_radians(vertical_fov);
const auto horizontal_fov =
static_cast<Type>(2) * std::atan(std::tan(fov_as_radians / static_cast<Type>(2)) * aspect);
return radians_to_degrees(horizontal_fov);
}
template<class Type>
requires std::is_arithmetic_v<Type>
[[nodiscard]] Type WrapAngle(const Type& angle, const Type& min, const Type& max)
[[nodiscard]] Type wrap_angle(const Type& angle, const Type& min, const Type& max) noexcept
{
if (angle <= max && angle >= min)
return angle;
const Type range = max - min;
Type wrappedAngle = std::fmod(angle - min, range);
Type wrapped_angle = std::fmod(angle - min, range);
if (wrappedAngle < 0)
wrappedAngle += range;
if (wrapped_angle < 0)
wrapped_angle += range;
return wrappedAngle + min;
return wrapped_angle + min;
}
}
} // namespace omath::angles

17
include/omath/collision/line_tracer.hpp
View File

@@ -3,8 +3,8 @@
//
#pragma once
#include "omath/linear_algebra/vector3.hpp"
#include "omath/triangle.hpp"
#include "omath/vector3.hpp"
namespace omath::collision
{
@@ -14,25 +14,24 @@ namespace omath::collision
Vector3<float> start;
Vector3<float> end;
bool infinite_length = false;
[[nodiscard]]
Vector3<float> DirectionVector() const;
[[nodiscard]]
Vector3<float> DirectionVectorNormalized() const;
Vector3<float> direction_vector() const noexcept;
[[nodiscard]]
Vector3<float> direction_vector_normalized() const noexcept;
};
class LineTracer
{
public:
LineTracer() = delete;
[[nodiscard]]
static bool CanTraceLine(const Ray& ray, const Triangle<Vector3<float>>& triangle);
static bool can_trace_line(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept;
// Realization of Möller–Trumbore intersection algorithm
// https://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm
[[nodiscard]]
static Vector3<float> GetRayHitPoint(const Ray& ray, const Triangle<Vector3<float>>& triangle);
static Vector3<float> get_ray_hit_point(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept;
};
}
} // namespace omath::collision

151
include/omath/color.hpp
View File

@@ -4,95 +4,84 @@
#pragma once
#include "linear_algebra/vector4.hpp"
#include <cstdint>
#include "omath/vector3.hpp"
#include "omath/vector4.hpp"
#ifdef max
#undef max
#endif
#ifdef min
#undef min
#endif
namespace omath
{
struct HSV
struct Hsv
{
float hue{};
float saturation{};
float value{};
};
class Color final : public Vector4<float>
{
public:
constexpr Color(const float r, const float g, const float b, const float a) : Vector4(r, g, b, a)
constexpr Color(const float r, const float g, const float b, const float a) noexcept: Vector4(r, g, b, a)
{
Clamp(0.f, 1.f);
clamp(0.f, 1.f);
}
constexpr explicit Color() = default;
constexpr explicit Color() noexcept = default;
[[nodiscard]]
constexpr static Color FromRGBA(const uint8_t r, const uint8_t g, const uint8_t b, const uint8_t a)
constexpr static Color from_rgba(const uint8_t r, const uint8_t g, const uint8_t b, const uint8_t a) noexcept
{
return Color{Vector4(r, g, b, a) / 255.f};
}
[[nodiscard]]
constexpr static Color FromHSV(float hue, const float saturation, const float value)
constexpr static Color from_hsv(float hue, const float saturation, const float value) noexcept
{
float r{}, g{}, b{};
hue = std::clamp(hue, 0.f, 1.f);
const int i = static_cast<int>(hue * 6.f);
const float f = hue * 6 - i;
const float f = hue * 6.f - static_cast<float>(i);
const float p = value * (1 - saturation);
const float q = value * (1 - f * saturation);
const float t = value * (1 - (1 - f) * saturation);
switch (i % 6)
{
case 0:
r = value, g = t, b = p;
break;
case 1:
r = q, g = value, b = p;
break;
case 2:
r = p, g = value, b = t;
break;
case 3:
r = p, g = q, b = value;
break;
case 4:
r = t, g = p, b = value;
break;
case 5:
r = value, g = p, b = q;
break;
case 0:
r = value, g = t, b = p;
break;
case 1:
r = q, g = value, b = p;
break;
case 2:
r = p, g = value, b = t;
break;
case 3:
r = p, g = q, b = value;
break;
case 4:
r = t, g = p, b = value;
break;
case 5:
r = value, g = p, b = q;
break;
default:
return {0.f, 0.f, 0.f, 0.f};
default:
return {0.f, 0.f, 0.f, 0.f};
}
return {r, g, b, 1.f};
}
[[nodiscard]]
constexpr static Color FromHSV(const HSV& hsv)
constexpr static Color from_hsv(const Hsv& hsv) noexcept
{
return FromHSV(hsv.hue, hsv.saturation, hsv.value);
return from_hsv(hsv.hue, hsv.saturation, hsv.value);
}
[[nodiscard]]
constexpr HSV ToHSV() const
constexpr Hsv to_hsv() const noexcept
{
HSV hsvData;
Hsv hsv_data;
const float& red = x;
const float& green = y;
@@ -102,72 +91,96 @@ namespace omath
const float min = std::min({red, green, blue});
const float delta = max - min;
if (delta == 0.f)
hsvData.hue = 0.f;
hsv_data.hue = 0.f;
else if (max == red)
hsvData.hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
hsv_data.hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
else if (max == green)
hsvData.hue = 60.f * (((blue - red) / delta) + 2.f);
hsv_data.hue = 60.f * (((blue - red) / delta) + 2.f);
else if (max == blue)
hsvData.hue = 60.f * (((red - green) / delta) + 4.f);
hsv_data.hue = 60.f * (((red - green) / delta) + 4.f);
if (hsvData.hue < 0.f)
hsvData.hue += 360.f;
if (hsv_data.hue < 0.f)
hsv_data.hue += 360.f;
hsvData.hue /= 360.f;
hsvData.saturation = max == 0.f ? 0.f : delta / max;
hsvData.value = max;
hsv_data.hue /= 360.f;
hsv_data.saturation = max == 0.f ? 0.f : delta / max;
hsv_data.value = max;
return hsvData;
return hsv_data;
}
constexpr explicit Color(const Vector4& vec) : Vector4(vec)
constexpr explicit Color(const Vector4& vec) noexcept: Vector4(vec)
{
Clamp(0.f, 1.f);
clamp(0.f, 1.f);
}
constexpr void SetHue(const float hue)
constexpr void set_hue(const float hue) noexcept
{
auto hsv = ToHSV();
auto hsv = to_hsv();
hsv.hue = hue;
*this = FromHSV(hsv);
*this = from_hsv(hsv);
}
constexpr void SetSaturation(const float saturation)
constexpr void set_saturation(const float saturation) noexcept
{
auto hsv = ToHSV();
auto hsv = to_hsv();
hsv.saturation = saturation;
*this = FromHSV(hsv);
*this = from_hsv(hsv);
}
constexpr void SetValue(const float value)
constexpr void set_value(const float value) noexcept
{
auto hsv = ToHSV();
auto hsv = to_hsv();
hsv.value = value;
*this = FromHSV(hsv);
*this = from_hsv(hsv);
}
[[nodiscard]]
constexpr Color Blend(const Color& other, float ratio) const
constexpr Color blend(const Color& other, float ratio) const noexcept
{
ratio = std::clamp(ratio, 0.f, 1.f);
return Color(*this * (1.f - ratio) + other * ratio);
}
[[nodiscard]] static constexpr Color Red()
[[nodiscard]] static constexpr Color red()
{
return {1.f, 0.f, 0.f, 1.f};
}
[[nodiscard]] static constexpr Color Green()
[[nodiscard]] static constexpr Color green()
{
return {0.f, 1.f, 0.f, 1.f};
}
[[nodiscard]] static constexpr Color Blue()
[[nodiscard]] static constexpr Color blue()
{
return {0.f, 0.f, 1.f, 1.f};
}
#ifdef OMATH_IMGUI_INTEGRATION
[[nodiscard]]
ImColor to_im_color() const noexcept
{
return {to_im_vec4()};
}
#endif
};
} // namespace omath
template<>
struct std::formatter<omath::Color> // NOLINT(*-dcl58-cpp)
{
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const omath::Color& col, std::format_context& ctx)
{
return std::format_to(ctx.out(), "[r:{}, g:{}, b:{}, a:{}]",
static_cast<int>(col.x * 255.f),
static_cast<int>(col.y * 255.f),
static_cast<int>(col.z * 255.f),
static_cast<int>(col.w * 255.f));
}
};

14
include/omath/engines/iw_engine/camera.hpp
View File

@@ -5,17 +5,9 @@
#pragma once
#include "omath/engines/iw_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::iw_engine
{
class Camera final : public projection::Camera<Mat4x4, ViewAngles>
{
public:
Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, float near, float far);
void LookAt(const Vector3<float>& target) override;
protected:
[[nodiscard]] Mat4x4 CalcViewMatrix() const override;
[[nodiscard]] Mat4x4 CalcProjectionMatrix() const override;
};
}
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::iw_engine

18
include/omath/engines/iw_engine/constants.hpp
View File

@@ -3,23 +3,23 @@
//
#pragma once
#include <omath/vector3.hpp>
#include <omath/mat.hpp>
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include <omath/angle.hpp>
#include <omath/view_angles.hpp>
namespace omath::iw_engine
{
constexpr Vector3<float> kAbsUp = {0, 0, 1};
constexpr Vector3<float> kAbsRight = {0, -1, 0};
constexpr Vector3<float> kAbsForward = {1, 0, 0};
constexpr Vector3<float> k_abs_up = {0, 0, 1};
constexpr Vector3<float> k_abs_right = {0, -1, 0};
constexpr Vector3<float> k_abs_forward = {1, 0, 0};
using Mat4x4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3x3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1x3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using PitchAngle = Angle<float, -89.f, 89.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
}
} // namespace omath::iw_engine

12
include/omath/engines/iw_engine/formulas.hpp
View File

@@ -8,19 +8,19 @@
namespace omath::iw_engine
{
[[nodiscard]]
Vector3<float> ForwardVector(const ViewAngles& angles);
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> RightVector(const ViewAngles& angles);
Vector3<float> right_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> UpVector(const ViewAngles& angles);
Vector3<float> up_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4x4 RotationMatrix(const ViewAngles& angles);
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::iw_engine

24
include/omath/engines/iw_engine/traits/camera_trait.hpp Normal file
View File

@@ -0,0 +1,24 @@
//
// Created by Vlad on 8/10/2025.
//
#pragma once
#include "omath/engines/iw_engine/constants.hpp"
#include "omath/projection/camera.hpp"
namespace omath::iw_engine
{
class CameraTrait final
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
float near, float far) noexcept;
};
} // namespace omath::iw_engine

79
include/omath/engines/iw_engine/traits/pred_engine_trait.hpp Normal file
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//
// Created by Vlad on 8/6/2025.
//
#pragma once
#include "omath/engines/iw_engine/formulas.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include <optional>
namespace omath::iw_engine
{
class PredEngineTrait final
{
public:
constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
const float pitch, const float yaw,
const float time, const float gravity) noexcept
{
auto current_pos = projectile.m_origin
+ forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
RollAngle::from_degrees(0)})
* projectile.m_launch_speed * time;
current_pos.z -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
return current_pos;
}
[[nodiscard]]
static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
const float time, const float gravity) noexcept
{
auto predicted = target.m_origin + target.m_velocity * time;
if (target.m_is_airborne)
predicted.z -= gravity * (time * time) * 0.5f;
return predicted;
}
[[nodiscard]]
static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
{
return std::sqrt(delta.x * delta.x + delta.y * delta.y);
}
[[nodiscard]]
constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
{
return vec.z;
}
[[nodiscard]]
static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
Vector3<float> predicted_target_position,
const std::optional<float> projectile_pitch) noexcept
{
const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
return {predicted_target_position.x, predicted_target_position.y, projectile.m_origin.z + height};
}
// Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
// 89 look up, -89 look down
[[nodiscard]]
static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto distance = origin.distance_to(view_to);
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::asin(delta.z / distance));
}
[[nodiscard]]
static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::atan2(delta.y, delta.x));
};
};
} // namespace omath::iw_engine

13
include/omath/engines/opengl_engine/camera.hpp
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@@ -4,16 +4,9 @@
#pragma once
#include "omath/engines/opengl_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::opengl_engine
{
class Camera final : public projection::Camera<Mat4x4, ViewAngles>
{
public:
Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, float near, float far);
void LookAt(const Vector3<float>& target) override;
[[nodiscard]] Mat4x4 CalcViewMatrix() const override;
[[nodiscard]] Mat4x4 CalcProjectionMatrix() const override;
};
}
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::opengl_engine

19
include/omath/engines/opengl_engine/constants.hpp
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@@ -3,24 +3,23 @@
//
#pragma once
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <omath/view_angles.hpp>
namespace omath::opengl_engine
{
constexpr Vector3<float> kAbsUp = {0, 1, 0};
constexpr Vector3<float> kAbsRight = {1, 0, 0};
constexpr Vector3<float> kAbsForward = {0, 0, -1};
constexpr Vector3<float> k_abs_up = {0, 1, 0};
constexpr Vector3<float> k_abs_right = {1, 0, 0};
constexpr Vector3<float> k_abs_forward = {0, 0, -1};
using Mat4x4 = Mat<4, 4, float, MatStoreType::COLUMN_MAJOR>;
using Mat3x3 = Mat<4, 4, float, MatStoreType::COLUMN_MAJOR>;
using Mat1x3 = Mat<1, 3, float, MatStoreType::COLUMN_MAJOR>;
using Mat4X4 = Mat<4, 4, float, MatStoreType::COLUMN_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::COLUMN_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::COLUMN_MAJOR>;
using PitchAngle = Angle<float, -90.f, 90.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
}
} // namespace omath::opengl_engine

12
include/omath/engines/opengl_engine/formulas.hpp
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@@ -8,19 +8,19 @@
namespace omath::opengl_engine
{
[[nodiscard]]
Vector3<float> ForwardVector(const ViewAngles& angles);
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> RightVector(const ViewAngles& angles);
Vector3<float> right_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> UpVector(const ViewAngles& angles);
Vector3<float> up_vector(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4x4 RotationMatrix(const ViewAngles& angles);
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::opengl_engine

24
include/omath/engines/opengl_engine/traits/camera_trait.hpp Normal file
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//
// Created by Vlad on 8/10/2025.
//
#pragma once
#include "omath/engines/opengl_engine/constants.hpp"
#include "omath/projection/camera.hpp"
namespace omath::opengl_engine
{
class CameraTrait final
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
float near, float far) noexcept;
};
} // namespace omath::opengl_engine

78
include/omath/engines/opengl_engine/traits/pred_engine_trait.hpp Normal file
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//
// Created by Vlad on 8/6/2025.
//
#pragma once
#include "omath/engines/opengl_engine/formulas.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include <optional>
namespace omath::opengl_engine
{
class PredEngineTrait final
{
public:
constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
const float pitch, const float yaw,
const float time, const float gravity) noexcept
{
auto current_pos = projectile.m_origin
+ forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
RollAngle::from_degrees(0)})
* projectile.m_launch_speed * time;
current_pos.y -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
return current_pos;
}
[[nodiscard]]
static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
const float time, const float gravity) noexcept
{
auto predicted = target.m_origin + target.m_velocity * time;
if (target.m_is_airborne)
predicted.y -= gravity * (time * time) * 0.5f;
return predicted;
}
[[nodiscard]]
static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
{
return std::sqrt(delta.x * delta.x + delta.z * delta.z);
}
[[nodiscard]]
constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
{
return vec.y;
}
[[nodiscard]]
static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
Vector3<float> predicted_target_position,
const std::optional<float> projectile_pitch) noexcept
{
const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
return {predicted_target_position.x, predicted_target_position.y + height, projectile.m_origin.z};
}
// Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
// 89 look up, -89 look down
[[nodiscard]]
static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto distance = origin.distance_to(view_to);
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::asin(delta.y / distance));
}
[[nodiscard]]
static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::atan2(delta.z, delta.x));
};
};
} // namespace omath::opengl_engine

15
include/omath/engines/source_engine/camera.hpp
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@@ -4,17 +4,8 @@
#pragma once
#include "omath/engines/source_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::source_engine
{
class Camera final : public projection::Camera<Mat4x4, ViewAngles>
{
public:
Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, float near, float far);
void LookAt(const Vector3<float>& target) override;
protected:
[[nodiscard]] Mat4x4 CalcViewMatrix() const override;
[[nodiscard]] Mat4x4 CalcProjectionMatrix() const override;
};
}
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::source_engine

18
include/omath/engines/source_engine/constants.hpp
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@@ -3,23 +3,23 @@
//
#pragma once
#include <omath/vector3.hpp>
#include <omath/mat.hpp>
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include <omath/angle.hpp>
#include <omath/view_angles.hpp>
namespace omath::source_engine
{
constexpr Vector3<float> kAbsUp = {0, 0, 1};
constexpr Vector3<float> kAbsRight = {0, -1, 0};
constexpr Vector3<float> kAbsForward = {1, 0, 0};
constexpr Vector3<float> k_abs_up = {0, 0, 1};
constexpr Vector3<float> k_abs_right = {0, -1, 0};
constexpr Vector3<float> k_abs_forward = {1, 0, 0};
using Mat4x4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3x3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1x3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using PitchAngle = Angle<float, -89.f, 89.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
} // namespace omath::source
} // namespace omath::source_engine

14
include/omath/engines/source_engine/formulas.hpp
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@@ -7,19 +7,19 @@
namespace omath::source_engine
{
[[nodiscard]]
Vector3<float> ForwardVector(const ViewAngles& angles);
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4x4 RotationMatrix(const ViewAngles& angles);
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> RightVector(const ViewAngles& angles);
Vector3<float> right_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> UpVector(const ViewAngles& angles);
Vector3<float> up_vector(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
} // namespace omath::source
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::source_engine

24
include/omath/engines/source_engine/traits/camera_trait.hpp Normal file
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@@ -0,0 +1,24 @@
//
// Created by Vlad on 8/10/2025.
//
#pragma once
#include "omath/engines/source_engine/constants.hpp"
#include "omath/projection/camera.hpp"
namespace omath::source_engine
{
class CameraTrait final
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
float near, float far) noexcept;
};
} // namespace omath::source_engine

79
include/omath/engines/source_engine/traits/pred_engine_trait.hpp Normal file
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@@ -0,0 +1,79 @@
//
// Created by Vlad on 8/3/2025.
//
#pragma once
#include "omath/engines/source_engine/formulas.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include <optional>
namespace omath::source_engine
{
class PredEngineTrait final
{
public:
constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
const float pitch, const float yaw,
const float time, const float gravity) noexcept
{
auto current_pos = projectile.m_origin
+ forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
RollAngle::from_degrees(0)})
* projectile.m_launch_speed * time;
current_pos.z -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
return current_pos;
}
[[nodiscard]]
static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
const float time, const float gravity) noexcept
{
auto predicted = target.m_origin + target.m_velocity * time;
if (target.m_is_airborne)
predicted.z -= gravity * (time * time) * 0.5f;
return predicted;
}
[[nodiscard]]
static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
{
return std::sqrt(delta.x * delta.x + delta.y * delta.y);
}
[[nodiscard]]
constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
{
return vec.z;
}
[[nodiscard]]
static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
Vector3<float> predicted_target_position,
const std::optional<float> projectile_pitch) noexcept
{
const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
return {predicted_target_position.x, predicted_target_position.y, projectile.m_origin.z + height};
}
// Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
// 89 look up, -89 look down
[[nodiscard]]
static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto distance = origin.distance_to(view_to);
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::asin(delta.z / distance));
}
[[nodiscard]]
static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::atan2(delta.y, delta.x));
};
};
} // namespace omath::source_engine

14
include/omath/engines/unity_engine/camera.hpp
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@@ -5,17 +5,9 @@
#pragma once
#include "omath/engines/unity_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::unity_engine
{
class Camera final : public projection::Camera<Mat4x4, ViewAngles>
{
public:
Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, float near, float far);
void LookAt(const Vector3<float>& target) override;
protected:
[[nodiscard]] Mat4x4 CalcViewMatrix() const override;
[[nodiscard]] Mat4x4 CalcProjectionMatrix() const override;
};
}
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::unity_engine

18
include/omath/engines/unity_engine/constants.hpp
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@@ -4,23 +4,23 @@
#pragma once
#include <omath/vector3.hpp>
#include <omath/mat.hpp>
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include <omath/angle.hpp>
#include <omath/view_angles.hpp>
namespace omath::unity_engine
{
constexpr Vector3<float> kAbsUp = {0, 1, 0};
constexpr Vector3<float> kAbsRight = {1, 0, 0};
constexpr Vector3<float> kAbsForward = {0, 0, 1};
constexpr Vector3<float> k_abs_up = {0, 1, 0};
constexpr Vector3<float> k_abs_right = {1, 0, 0};
constexpr Vector3<float> k_abs_forward = {0, 0, 1};
using Mat4x4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3x3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1x3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using PitchAngle = Angle<float, -90.f, 90.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
} // namespace omath::source
} // namespace omath::unity_engine

14
include/omath/engines/unity_engine/formulas.hpp
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@@ -8,19 +8,19 @@
namespace omath::unity_engine
{
[[nodiscard]]
Vector3<float> ForwardVector(const ViewAngles& angles);
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> RightVector(const ViewAngles& angles);
Vector3<float> right_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> UpVector(const ViewAngles& angles);
Vector3<float> up_vector(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4x4 RotationMatrix(const ViewAngles& angles);
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
} // namespace omath::source
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::unity_engine

24
include/omath/engines/unity_engine/traits/camera_trait.hpp Normal file
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@@ -0,0 +1,24 @@
//
// Created by Vlad on 8/10/2025.
//
#pragma once
#include "omath/engines/unity_engine/formulas.hpp"
#include "omath/projection/camera.hpp"
namespace omath::unity_engine
{
class CameraTrait final
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
float near, float far) noexcept;
};
} // namespace omath::unity_engine

78
include/omath/engines/unity_engine/traits/pred_engine_trait.hpp Normal file
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//
// Created by Vlad on 8/6/2025.
//
#pragma once
#include "omath/engines/unity_engine/formulas.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include <optional>
namespace omath::unity_engine
{
class PredEngineTrait final
{
public:
constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
const float pitch, const float yaw,
const float time, const float gravity) noexcept
{
auto current_pos = projectile.m_origin
+ forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
RollAngle::from_degrees(0)})
* projectile.m_launch_speed * time;
current_pos.y -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
return current_pos;
}
[[nodiscard]]
static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
const float time, const float gravity) noexcept
{
auto predicted = target.m_origin + target.m_velocity * time;
if (target.m_is_airborne)
predicted.y -= gravity * (time * time) * 0.5f;
return predicted;
}
[[nodiscard]]
static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
{
return std::sqrt(delta.x * delta.x + delta.z * delta.z);
}
[[nodiscard]]
constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
{
return vec.y;
}
[[nodiscard]]
static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
Vector3<float> predicted_target_position,
const std::optional<float> projectile_pitch) noexcept
{
const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
return {predicted_target_position.x, predicted_target_position.y + height, projectile.m_origin.z};
}
// Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
// 89 look up, -89 look down
[[nodiscard]]
static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto distance = origin.distance_to(view_to);
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::asin(delta.y / distance));
}
[[nodiscard]]
static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::atan2(delta.z, delta.x));
};
};
} // namespace omath::unity_engine

13
include/omath/engines/unreal_engine/camera.hpp Normal file
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@@ -0,0 +1,13 @@
//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include "omath/engines/unreal_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::unreal_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::unreal_engine

26
include/omath/engines/unreal_engine/constants.hpp Normal file
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@@ -0,0 +1,26 @@
//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include <omath/angle.hpp>
#include <omath/view_angles.hpp>
namespace omath::unreal_engine
{
constexpr Vector3<float> k_abs_up = {0, 0, 1};
constexpr Vector3<float> k_abs_right = {0, 1, 0};
constexpr Vector3<float> k_abs_forward = {1, 0, 0};
using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using PitchAngle = Angle<float, -90.f, 90.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
} // namespace omath::unreal_engine

26
include/omath/engines/unreal_engine/formulas.hpp Normal file
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@@ -0,0 +1,26 @@
//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include "omath/engines/unreal_engine/constants.hpp"
namespace omath::unreal_engine
{
[[nodiscard]]
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> right_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Vector3<float> up_vector(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::unreal_engine

24
include/omath/engines/unreal_engine/traits/camera_trait.hpp Normal file
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@@ -0,0 +1,24 @@
//
// Created by Vlad on 8/10/2025.
//
#pragma once
#include "omath/engines/unreal_engine/formulas.hpp"
#include "omath/projection/camera.hpp"
namespace omath::unreal_engine
{
class CameraTrait final
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
float near, float far) noexcept;
};
} // namespace omath::unreal_engine

78
include/omath/engines/unreal_engine/traits/pred_engine_trait.hpp Normal file
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@@ -0,0 +1,78 @@
//
// Created by Vlad on 8/6/2025.
//
#pragma once
#include "omath/engines/unreal_engine/formulas.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include <optional>
namespace omath::unreal_engine
{
class PredEngineTrait final
{
public:
constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
const float pitch, const float yaw,
const float time, const float gravity) noexcept
{
auto current_pos = projectile.m_origin
+ forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
RollAngle::from_degrees(0)})
* projectile.m_launch_speed * time;
current_pos.y -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
return current_pos;
}
[[nodiscard]]
static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
const float time, const float gravity) noexcept
{
auto predicted = target.m_origin + target.m_velocity * time;
if (target.m_is_airborne)
predicted.y -= gravity * (time * time) * 0.5f;
return predicted;
}
[[nodiscard]]
static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
{
return std::sqrt(delta.x * delta.x + delta.z * delta.z);
}
[[nodiscard]]
constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
{
return vec.y;
}
[[nodiscard]]
static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
Vector3<float> predicted_target_position,
const std::optional<float> projectile_pitch) noexcept
{
const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
return {predicted_target_position.x, predicted_target_position.y, projectile.m_origin.z + height};
}
// Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
// 89 look up, -89 look down
[[nodiscard]]
static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto distance = origin.distance_to(view_to);
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::asin(delta.z / distance));
}
[[nodiscard]]
static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
{
const auto delta = view_to - origin;
return angles::radians_to_degrees(std::atan2(delta.y, delta.x));
};
};
} // namespace omath::unreal_engine

247
include/omath/mat.hpp → include/omath/linear_algebra/mat.hpp
View File

@@ -2,25 +2,16 @@
// Created by vlad on 9/29/2024.
//
#pragma once
#include "vector3.hpp"
#include <algorithm>
#include <array>
#include <iomanip>
#include <numeric>
#include <sstream>
#include <stdexcept>
#include <utility>
#include "omath/vector3.hpp"
#include <numeric>
#ifdef near
#undef near
#endif
#ifdef far
#undef far
#endif
namespace omath
{
struct MatSize
@@ -34,25 +25,22 @@ namespace omath
COLUMN_MAJOR
};
template<typename M1, typename M2>
concept MatTemplateEqual =
(M1::rows == M2::rows) && (M1::columns == M2::columns) &&
std::is_same_v<typename M1::value_type, typename M2::value_type> &&
(M1::store_type == M2::store_type);
template<typename M1, typename M2> concept MatTemplateEqual
= (M1::rows == M2::rows) && (M1::columns == M2::columns)
&& std::is_same_v<typename M1::value_type, typename M2::value_type> && (M1::store_type == M2::store_type);
template<size_t Rows = 0, size_t Columns = 0, class Type = float, MatStoreType StoreType = MatStoreType::ROW_MAJOR>
requires std::is_arithmetic_v<Type>
requires std::is_arithmetic_v<Type>
class Mat final
{
public:
constexpr Mat() noexcept
{
Clear();
clear();
}
[[nodiscard]]
constexpr static MatStoreType GetStoreOrdering() noexcept
constexpr static MatStoreType get_store_ordering() noexcept
{
return StoreType;
}
@@ -61,24 +49,24 @@ namespace omath
if (rows.size() != Rows)
throw std::invalid_argument("Initializer list rows size does not match template parameter Rows");
auto rowIt = rows.begin();
for (size_t i = 0; i < Rows; ++i, ++rowIt)
auto row_it = rows.begin();
for (size_t i = 0; i < Rows; ++i, ++row_it)
{
if (rowIt->size() != Columns)
if (row_it->size() != Columns)
throw std::invalid_argument(
"All rows must have the same number of columns as template parameter Columns");
auto colIt = rowIt->begin();
for (size_t j = 0; j < Columns; ++j, ++colIt)
auto col_it = row_it->begin();
for (size_t j = 0; j < Columns; ++j, ++col_it)
{
At(i, j) = std::move(*colIt);
at(i, j) = std::move(*col_it);
}
}
}
constexpr explicit Mat(const Type* rawData)
constexpr explicit Mat(const Type* raw_data)
{
std::copy_n(rawData, Rows * Columns, m_data.begin());
std::copy_n(raw_data, Rows * Columns, m_data.begin());
}
constexpr Mat(const Mat& other) noexcept
@@ -89,13 +77,13 @@ namespace omath
[[nodiscard]]
constexpr Type& operator[](const size_t row, const size_t col)
{
return At(row, col);
return at(row, col);
}
[[nodiscard]]
constexpr Type& operator[](const size_t row, const size_t col) const
constexpr const Type& operator[](const size_t row, const size_t col) const
{
return At(row, col);
return at(row, col);
}
constexpr Mat(Mat&& other) noexcept
@@ -104,35 +92,35 @@ namespace omath
}
[[nodiscard]]
static constexpr size_t RowCount() noexcept
static constexpr size_t row_count() noexcept
{
return Rows;
}
[[nodiscard]]
static constexpr size_t ColumnsCount() noexcept
static constexpr size_t columns_count() noexcept
{
return Columns;
}
[[nodiscard]]
static consteval MatSize Size() noexcept
static consteval MatSize size() noexcept
{
return {Rows, Columns};
}
[[nodiscard]]
constexpr const Type& At(const size_t rowIndex, const size_t columnIndex) const
constexpr const Type& at(const size_t row_index, const size_t column_index) const
{
#if !defined(NDEBUG) && defined(OMATH_SUPRESS_SAFETY_CHECKS)
if (rowIndex >= Rows || columnIndex >= Columns)
if (row_index >= Rows || column_index >= Columns)
throw std::out_of_range("Index out of range");
#endif
if constexpr (StoreType == MatStoreType::ROW_MAJOR)
return m_data[rowIndex * Columns + columnIndex];
return m_data[row_index * Columns + column_index];
else if constexpr (StoreType == MatStoreType::COLUMN_MAJOR)
return m_data[rowIndex + columnIndex * Rows];
return m_data[row_index + column_index * Rows];
else
{
@@ -141,30 +129,29 @@ namespace omath
}
}
[[nodiscard]] constexpr Type& At(const size_t rowIndex, const size_t columnIndex)
[[nodiscard]] constexpr Type& at(const size_t row_index, const size_t column_index)
{
return const_cast<Type&>(std::as_const(*this).At(rowIndex, columnIndex));
return const_cast<Type&>(std::as_const(*this).at(row_index, column_index));
}
[[nodiscard]]
constexpr Type Sum() const noexcept
constexpr Type sum() const noexcept
{
return std::accumulate(m_data.begin(), m_data.end(), Type(0));
return std::accumulate(m_data.begin(), m_data.end(), static_cast<Type>(0));
}
constexpr void Clear() noexcept
constexpr void clear() noexcept
{
Set(0);
set(static_cast<Type>(0));
}
constexpr void Set(const Type& value) noexcept
constexpr void set(const Type& value) noexcept
{
std::ranges::fill(m_data, value);
}
// Operator overloading for multiplication with another Mat
template<size_t OtherColumns>
[[nodiscard]]
template<size_t OtherColumns> [[nodiscard]]
constexpr Mat<Rows, OtherColumns, Type, StoreType>
operator*(const Mat<Columns, OtherColumns, Type, StoreType>& other) const
{
@@ -175,20 +162,19 @@ namespace omath
{
Type sum = 0;
for (size_t k = 0; k < Columns; ++k)
sum += At(i, k) * other.At(k, j);
result.At(i, j) = sum;
sum += at(i, k) * other.at(k, j);
result.at(i, j) = sum;
}
return result;
}
constexpr Mat& operator*=(const Type& f) noexcept
{
std::ranges::for_each(m_data, [&f](auto& val) {val *= f;});
std::ranges::for_each(m_data, [&f](auto& val) { val *= f; });
return *this;
}
template<size_t OtherColumns>
constexpr Mat<Rows, OtherColumns, Type, StoreType>
template<size_t OtherColumns> constexpr Mat<Rows, OtherColumns, Type, StoreType>
operator*=(const Mat<Columns, OtherColumns, Type, StoreType>& other)
{
return *this = *this * other;
@@ -204,7 +190,7 @@ namespace omath
constexpr Mat& operator/=(const Type& value) noexcept
{
std::ranges::for_each(m_data, [&value](auto& val) {val /= value;});
std::ranges::for_each(m_data, [&value](auto& val) { val /= value; });
return *this;
}
@@ -233,33 +219,33 @@ namespace omath
}
[[nodiscard]]
constexpr Mat<Columns, Rows, Type, StoreType> Transposed() const noexcept
constexpr Mat<Columns, Rows, Type, StoreType> transposed() const noexcept
{
Mat<Columns, Rows, Type, StoreType> transposed;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
transposed.At(j, i) = At(i, j);
transposed.at(j, i) = at(i, j);
return transposed;
}
[[nodiscard]]
constexpr Type Determinant() const
constexpr Type determinant() const
{
static_assert(Rows == Columns, "Determinant is only defined for square matrices.");
if constexpr (Rows == 1)
return At(0, 0);
return at(0, 0);
if constexpr (Rows == 2)
return At(0, 0) * At(1, 1) - At(0, 1) * At(1, 0);
return at(0, 0) * at(1, 1) - at(0, 1) * at(1, 0);
if constexpr (Rows > 2)
{
Type det = 0;
for (size_t column = 0; column < Columns; ++column)
{
const Type cofactor = At(0, column) * AlgComplement(0, column);
const Type cofactor = at(0, column) * alg_complement(0, column);
det += cofactor;
}
return det;
@@ -268,9 +254,9 @@ namespace omath
}
[[nodiscard]]
constexpr Mat<Rows - 1, Columns - 1, Type, StoreType> Strip(const size_t row, const size_t column) const
constexpr Mat<Rows - 1, Columns - 1, Type, StoreType> strip(const size_t row, const size_t column) const
{
static_assert(Rows-1 > 0 && Columns-1 > 0);
static_assert(Rows - 1 > 0 && Columns - 1 > 0);
Mat<Rows - 1, Columns - 1, Type, StoreType> result;
for (size_t i = 0, m = 0; i < Rows; ++i)
{
@@ -280,7 +266,7 @@ namespace omath
{
if (j == column)
continue;
result.At(m, n) = At(i, j);
result.at(m, n) = at(i, j);
++n;
}
++m;
@@ -289,32 +275,32 @@ namespace omath
}
[[nodiscard]]
constexpr Type Minor(const size_t row, const size_t column) const
constexpr Type minor(const size_t row, const size_t column) const
{
return Strip(row, column).Determinant();
return strip(row, column).determinant();
}
[[nodiscard]]
constexpr Type AlgComplement(const size_t row, const size_t column) const
constexpr Type alg_complement(const size_t row, const size_t column) const
{
const auto minor = Minor(row, column);
return (row + column + 2) % 2 == 0 ? minor: -minor;
const auto minor_value = minor(row, column);
return (row + column + 2) % 2 == 0 ? minor_value : -minor_value;
}
[[nodiscard]]
constexpr const std::array<Type, Rows * Columns>& RawArray() const
constexpr const std::array<Type, Rows * Columns>& raw_array() const
{
return m_data;
}
[[nodiscard]]
constexpr std::array<Type, Rows * Columns>& RawArray()
constexpr std::array<Type, Rows * Columns>& raw_array()
{
return m_data;
}
[[nodiscard]]
std::string ToString() const noexcept
std::string to_string() const noexcept
{
std::ostringstream oss;
oss << "[[";
@@ -326,7 +312,7 @@ namespace omath
for (size_t j = 0; j < Columns; ++j)
{
oss << std::setw(9) << std::fixed << std::setprecision(3) << At(i, j);
oss << std::setw(9) << std::fixed << std::setprecision(3) << at(i, j);
if (j != Columns - 1)
oss << ", ";
}
@@ -349,56 +335,55 @@ namespace omath
// Static methods that return fixed-size matrices
[[nodiscard]]
constexpr static Mat<4, 4> ToScreenMat(const Type& screenWidth, const Type& screenHeight) noexcept
constexpr static Mat<4, 4> to_screen_mat(const Type& screen_width, const Type& screen_height) noexcept
{
return {
{screenWidth / 2, 0, 0, 0},
{0, -screenHeight / 2, 0, 0},
{screen_width / 2, 0, 0, 0},
{0, -screen_height / 2, 0, 0},
{0, 0, 1, 0},
{screenWidth / 2, screenHeight / 2, 0, 1},
{screen_width / 2, screen_height / 2, 0, 1},
};
}
[[nodiscard]]
constexpr std::optional<Mat> Inverted() const
constexpr std::optional<Mat> inverted() const
{
const auto det = Determinant();
const auto det = determinant();
if (det == 0)
return std::nullopt;
const auto transposed = Transposed();
const auto transposed_mat = transposed();
Mat result;
for (std::size_t row = 0; row < Rows; row++)
for (std::size_t column = 0; column < Rows; column++)
result.At(row, column) = transposed.AlgComplement(row, column);
result.at(row, column) = transposed_mat.alg_complement(row, column);
result /= det;
return {result};
}
private:
std::array<Type, Rows * Columns> m_data;
};
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
constexpr static Mat<1, 4, Type, St> MatRowFromVector(const Vector3<Type>& vector) noexcept
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR> [[nodiscard]]
constexpr static Mat<1, 4, Type, St> mat_row_from_vector(const Vector3<Type>& vector) noexcept
{
return {{vector.x, vector.y, vector.z, 1}};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
constexpr static Mat<4, 1, Type, St> MatColumnFromVector(const Vector3<Type>& vector) noexcept
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR> [[nodiscard]]
constexpr static Mat<4, 1, Type, St> mat_column_from_vector(const Vector3<Type>& vector) noexcept
{
return {{vector.x}, {vector.y}, {vector.z}, {1}};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
constexpr Mat<4, 4, Type, St> MatTranslation(const Vector3<Type>& diff) noexcept
constexpr Mat<4, 4, Type, St> mat_translation(const Vector3<Type>& diff) noexcept
{
return
{
@@ -411,38 +396,38 @@ namespace omath
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
Mat<4, 4, Type, St> MatRotationAxisX(const Angle& angle) noexcept
Mat<4, 4, Type, St> mat_rotation_axis_x(const Angle& angle) noexcept
{
return
{
{1, 0, 0, 0},
{0, angle.Cos(), -angle.Sin(), 0},
{0, angle.Sin(), angle.Cos(), 0},
{0, angle.cos(), -angle.sin(), 0},
{0, angle.sin(), angle.cos(), 0},
{0, 0, 0, 1}
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
Mat<4, 4, Type, St> MatRotationAxisY(const Angle& angle) noexcept
Mat<4, 4, Type, St> mat_rotation_axis_y(const Angle& angle) noexcept
{
return
{
{angle.Cos(), 0, angle.Sin(), 0},
{angle.cos(), 0, angle.sin(), 0},
{0 , 1, 0, 0},
{-angle.Sin(), 0, angle.Cos(), 0},
{-angle.sin(), 0, angle.cos(), 0},
{0 , 0, 0, 1}
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
Mat<4, 4, Type, St> MatRotationAxisZ(const Angle& angle) noexcept
Mat<4, 4, Type, St> mat_rotation_axis_z(const Angle& angle) noexcept
{
return
{
{angle.Cos(), -angle.Sin(), 0, 0},
{angle.Sin(), angle.Cos(), 0, 0},
{angle.cos(), -angle.sin(), 0, 0},
{angle.sin(), angle.cos(), 0, 0},
{ 0, 0, 1, 0},
{ 0, 0, 0, 1},
};
@@ -450,8 +435,8 @@ namespace omath
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
static Mat<4, 4, Type, St> MatCameraView(const Vector3<Type>& forward, const Vector3<Type>& right,
const Vector3<Type>& up, const Vector3<Type>& cameraOrigin) noexcept
static Mat<4, 4, Type, St> mat_camera_view(const Vector3<Type>& forward, const Vector3<Type>& right,
const Vector3<Type>& up, const Vector3<Type>& camera_origin) noexcept
{
return Mat<4, 4, Type, St>
{
@@ -459,33 +444,77 @@ namespace omath
{up.x, up.y, up.z, 0},
{forward.x, forward.y, forward.z, 0},
{0, 0, 0, 1},
} * MatTranslation<Type, St>(-cameraOrigin);
} * mat_translation<Type, St>(-camera_origin);
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
Mat<4, 4, Type, St> MatPerspectiveLeftHanded(const float fieldOfView, const float aspectRatio, const float near,
const float far) noexcept
Mat<4, 4, Type, St> mat_perspective_left_handed(const float field_of_view, const float aspect_ratio,
const float near, const float far) noexcept
{
const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f);
return {{1.f / (aspectRatio * fovHalfTan), 0.f, 0.f, 0.f},
{0.f, 1.f / fovHalfTan, 0.f, 0.f},
return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f},
{0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, (far + near) / (far - near), -(2.f * near * far) / (far - near)},
{0.f, 0.f, 1.f, 0.f}};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
Mat<4, 4, Type, St> MatPerspectiveRightHanded(const float fieldOfView, const float aspectRatio, const float near,
const float far) noexcept
Mat<4, 4, Type, St> mat_perspective_right_handed(const float field_of_view, const float aspect_ratio,
const float near, const float far) noexcept
{
const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f);
return {{1.f / (aspectRatio * fovHalfTan), 0.f, 0.f, 0.f},
{0.f, 1.f / fovHalfTan, 0.f, 0.f},
return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f},
{0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, -(far + near) / (far - near), -(2.f * near * far) / (far - near)},
{0.f, 0.f, -1.f, 0.f}};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
Mat<4, 4, Type, St> mat_ortho_left_handed(const Type left, const Type right,
const Type bottom, const Type top,
const Type near, const Type far) noexcept
{
return
{
{ static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)},
{ 0.f, static_cast<Type>(2) / (top - bottom), 0.f, -(top + bottom) / (top - bottom)},
{ 0.f, 0.f, static_cast<Type>(2) / (far - near), -(far + near) / (far - near) },
{ 0.f, 0.f, 0.f, 1.f }
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
Mat<4, 4, Type, St> mat_ortho_right_handed(const Type left, const Type right,
const Type bottom, const Type top,
const Type near, const Type far) noexcept
{
return
{
{ static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)},
{ 0.f, static_cast<Type>(2) / (top - bottom), 0.f, -(top + bottom) / (top - bottom)},
{ 0.f, 0.f, -static_cast<Type>(2) / (far - near), -(far + near) / (far - near) },
{ 0.f, 0.f, 0.f, 1.f }
};
}
} // namespace omath
template<size_t Rows, size_t Columns, class Type, omath::MatStoreType StoreType>
struct std::formatter<omath::Mat<Rows, Columns, Type, StoreType>> // NOLINT(*-dcl58-cpp)
{
using MatType = omath::Mat<Rows, Columns, Type, StoreType>;
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const MatType& mat, std::format_context& ctx)
{
return std::format_to(ctx.out(), "{}", mat.to_string());
}
};

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//
// Created by Vlad on 02.09.2024.
//
#pragma once
#include <cmath>
#include <format>
#include <tuple>
#ifdef OMATH_IMGUI_INTEGRATION
#include <imgui.h>
#endif
namespace omath
{
template<class Type>
requires std::is_arithmetic_v<Type>
class Vector2
{
public:
Type x = static_cast<Type>(0);
Type y = static_cast<Type>(0);
// Constructors
constexpr Vector2() = default;
constexpr Vector2(const Type& x, const Type& y) noexcept: x(x), y(y)
{
}
// Equality operators
[[nodiscard]]
constexpr bool operator==(const Vector2& other) const noexcept
{
return x == other.x && y == other.y;
}
[[nodiscard]]
constexpr bool operator!=(const Vector2& other) const noexcept
{
return !(*this == other);
}
// Compound assignment operators
constexpr Vector2& operator+=(const Vector2& other) noexcept
{
x += other.x;
y += other.y;
return *this;
}
constexpr Vector2& operator-=(const Vector2& other) noexcept
{
x -= other.x;
y -= other.y;
return *this;
}
constexpr Vector2& operator*=(const Vector2& other) noexcept
{
x *= other.x;
y *= other.y;
return *this;
}
constexpr Vector2& operator/=(const Vector2& other) noexcept
{
x /= other.x;
y /= other.y;
return *this;
}
constexpr Vector2& operator*=(const Type& value) noexcept
{
x *= value;
y *= value;
return *this;
}
constexpr Vector2& operator/=(const Type& value) noexcept
{
x /= value;
y /= value;
return *this;
}
constexpr Vector2& operator+=(const Type& value) noexcept
{
x += value;
y += value;
return *this;
}
constexpr Vector2& operator-=(const Type& value) noexcept
{
x -= value;
y -= value;
return *this;
}
// Basic vector operations
[[nodiscard]] Type distance_to(const Vector2& other) const noexcept
{
return std::sqrt(distance_to_sqr(other));
}
[[nodiscard]] constexpr Type distance_to_sqr(const Vector2& other) const noexcept
{
return (x - other.x) * (x - other.x) + (y - other.y) * (y - other.y);
}
[[nodiscard]] constexpr Type dot(const Vector2& other) const noexcept
{
return x * other.x + y * other.y;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr Type length() const noexcept
{
return std::hypot(this->x, this->y);
}
[[nodiscard]] constexpr Vector2 normalized() const noexcept
{
const Type len = length();
return len > 0.f ? *this / len : *this;
}
#else
[[nodiscard]] Type length() const noexcept
{
return std::hypot(x, y);
}
[[nodiscard]] Vector2 normalized() const noexcept
{
const Type len = length();
return len > static_cast<Type>(0) ? *this / len : *this;
}
#endif
[[nodiscard]] constexpr Type length_sqr() const noexcept
{
return x * x + y * y;
}
constexpr Vector2& abs() noexcept
{
// FIXME: Replace with std::abs, if it will become constexprable
x = x < static_cast<Type>(0) ? -x : x;
y = y < static_cast<Type>(0) ? -y : y;
return *this;
}
[[nodiscard]] constexpr Vector2 operator-() const noexcept
{
return {-x, -y};
}
// Binary arithmetic operators
[[nodiscard]] constexpr Vector2 operator+(const Vector2& other) const noexcept
{
return {x + other.x, y + other.y};
}
[[nodiscard]] constexpr Vector2 operator-(const Vector2& other) const noexcept
{
return {x - other.x, y - other.y};
}
[[nodiscard]] constexpr Vector2 operator*(const Type& value) const noexcept
{
return {x * value, y * value};
}
[[nodiscard]] constexpr Vector2 operator/(const Type& value) const noexcept
{
return {x / value, y / value};
}
// Sum of elements
[[nodiscard]] constexpr Type sum() const noexcept
{
return x + y;
}
[[nodiscard]]
bool operator<(const Vector2& other) const noexcept
{
return length() < other.length();
}
[[nodiscard]]
bool operator>(const Vector2& other) const noexcept
{
return length() > other.length();
}
[[nodiscard]]
bool operator<=(const Vector2& other) const noexcept
{
return length() <= other.length();
}
[[nodiscard]]
bool operator>=(const Vector2& other) const noexcept
{
return length() >= other.length();
}
[[nodiscard]]
constexpr std::tuple<Type, Type> as_tuple() const noexcept
{
return std::make_tuple(x, y);
}
#ifdef OMATH_IMGUI_INTEGRATION
[[nodiscard]]
ImVec2 to_im_vec2() const noexcept
{
return {static_cast<float>(this->x), static_cast<float>(this->y)};
}
[[nodiscard]]
static Vector2 from_im_vec2(const ImVec2& other) noexcept
{
return {static_cast<Type>(other.x), static_cast<Type>(other.y)};
}
#endif
};
} // namespace omath
template<class Type>
struct std::formatter<omath::Vector2<Type>> // NOLINT(*-dcl58-cpp)
{
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const omath::Vector2<Type>& vec, std::format_context& ctx)
{
return std::format_to(ctx.out(), "[{}, {}]", vec.x, vec.y);
}
};

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//
// Created by vlad on 10/28/23.
//
#pragma once
#include "omath/angle.hpp"
#include "omath/linear_algebra/vector2.hpp"
#include <cstdint>
#include <expected>
#include <functional>
namespace omath
{
enum class Vector3Error
{
IMPOSSIBLE_BETWEEN_ANGLE,
};
template<class Type>
requires std::is_arithmetic_v<Type>
class Vector3 : public Vector2<Type>
{
public:
Type z = static_cast<Type>(0);
constexpr Vector3(const Type& x, const Type& y, const Type& z) noexcept: Vector2<Type>(x, y), z(z)
{
}
constexpr Vector3() noexcept: Vector2<Type>() {};
[[nodiscard]] constexpr bool operator==(const Vector3& other) const noexcept
{
return Vector2<Type>::operator==(other) && (other.z == z);
}
[[nodiscard]] constexpr bool operator!=(const Vector3& other) const noexcept
{
return !(*this == other);
}
constexpr Vector3& operator+=(const Vector3& other) noexcept
{
Vector2<Type>::operator+=(other);
z += other.z;
return *this;
}
constexpr Vector3& operator-=(const Vector3& other) noexcept
{
Vector2<Type>::operator-=(other);
z -= other.z;
return *this;
}
constexpr Vector3& operator*=(const Type& value) noexcept
{
Vector2<Type>::operator*=(value);
z *= value;
return *this;
}
constexpr Vector3& operator*=(const Vector3& other) noexcept
{
Vector2<Type>::operator*=(other);
z *= other.z;
return *this;
}
constexpr Vector3& operator/=(const Vector3& other) noexcept
{
Vector2<Type>::operator/=(other);
z /= other.z;
return *this;
}
constexpr Vector3& operator+=(const Type& value) noexcept
{
Vector2<Type>::operator+=(value);
z += value;
return *this;
}
constexpr Vector3& operator/=(const Type& value) noexcept
{
Vector2<Type>::operator/=(value);
z /= value;
return *this;
}
constexpr Vector3& operator-=(const Type& value) noexcept
{
Vector2<Type>::operator-=(value);
z -= value;
return *this;
}
constexpr Vector3& abs() noexcept
{
Vector2<Type>::abs();
z = z < 0.f ? -z : z;
return *this;
}
[[nodiscard]] constexpr Type distance_to_sqr(const Vector3& other) const noexcept
{
return (*this - other).length_sqr();
}
[[nodiscard]] constexpr Type dot(const Vector3& other) const noexcept
{
return Vector2<Type>::dot(other) + z * other.z;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr Type length() const
{
return std::hypot(this->x, this->y, z);
}
[[nodiscard]] constexpr Type length_2d() const
{
return Vector2<Type>::length();
}
[[nodiscard]] Type distance_to(const Vector3& other) const
{
return (*this - other).length();
}
[[nodiscard]] constexpr Vector3 normalized() const
{
const Type length_value = this->length();
return length_value != 0 ? *this / length_value : *this;
}
#else
[[nodiscard]] Type length() const noexcept
{
return std::hypot(this->x, this->y, z);
}
[[nodiscard]] Vector3 normalized() const noexcept
{
const Type len = this->length();
return len != static_cast<Type>(0) ? *this / len : *this;
}
[[nodiscard]] Type length_2d() const noexcept
{
return Vector2<Type>::length();
}
[[nodiscard]] Type distance_to(const Vector3& v_other) const noexcept
{
return (*this - v_other).length();
}
#endif
[[nodiscard]] constexpr Type length_sqr() const noexcept
{
return Vector2<Type>::length_sqr() + z * z;
}
[[nodiscard]] constexpr Vector3 operator-() const noexcept
{
return {-this->x, -this->y, -z};
}
[[nodiscard]] constexpr Vector3 operator+(const Vector3& other) const noexcept
{
return {this->x + other.x, this->y + other.y, z + other.z};
}
[[nodiscard]] constexpr Vector3 operator-(const Vector3& other) const noexcept
{
return {this->x - other.x, this->y - other.y, z - other.z};
}
[[nodiscard]] constexpr Vector3 operator*(const Type& value) const noexcept
{
return {this->x * value, this->y * value, z * value};
}
[[nodiscard]] constexpr Vector3 operator*(const Vector3& other) const noexcept
{
return {this->x * other.x, this->y * other.y, z * other.z};
}
[[nodiscard]] constexpr Vector3 operator/(const Type& value) const noexcept
{
return {this->x / value, this->y / value, z / value};
}
[[nodiscard]] constexpr Vector3 operator/(const Vector3& other) const noexcept
{
return {this->x / other.x, this->y / other.y, z / other.z};
}
[[nodiscard]] constexpr Vector3 cross(const Vector3& other) const noexcept
{
return {this->y * other.z - z * other.y, z * other.x - this->x * other.z,
this->x * other.y - this->y * other.x};
}
[[nodiscard]] constexpr Type sum() const noexcept
{
return sum_2d() + z;
}
[[nodiscard]] std::expected<Angle<float, 0.f, 180.f, AngleFlags::Clamped>, Vector3Error>
angle_between(const Vector3& other) const noexcept
{
const auto bottom = length() * other.length();
if (bottom == static_cast<Type>(0))
return std::unexpected(Vector3Error::IMPOSSIBLE_BETWEEN_ANGLE);
return Angle<float, 0.f, 180.f, AngleFlags::Clamped>::from_radians(std::acos(dot(other) / bottom));
}
[[nodiscard]] bool is_perpendicular(const Vector3& other) const noexcept
{
if (const auto angle = angle_between(other))
return angle->as_degrees() == static_cast<Type>(90);
return false;
}
[[nodiscard]] constexpr Type sum_2d() const noexcept
{
return Vector2<Type>::sum();
}
[[nodiscard]] constexpr std::tuple<Type, Type, Type> as_tuple() const noexcept
{
return std::make_tuple(this->x, this->y, z);
}
[[nodiscard]] Vector3 view_angle_to(const Vector3& other) const noexcept
{
const auto distance = distance_to(other);
const auto delta = other - *this;
return {angles::radians_to_degrees(std::asin(delta.z / distance)),
angles::radians_to_degrees(std::atan2(delta.y, delta.x)), 0};
}
[[nodiscard]]
bool operator<(const Vector3& other) const noexcept
{
return length() < other.length();
}
[[nodiscard]]
bool operator>(const Vector3& other) const noexcept
{
return length() > other.length();
}
[[nodiscard]]
bool operator<=(const Vector3& other) const noexcept
{
return length() <= other.length();
}
[[nodiscard]]
bool operator>=(const Vector3& other) const noexcept
{
return length() >= other.length();
}
};
} // namespace omath
template<> struct std::hash<omath::Vector3<float>>
{
std::size_t operator()(const omath::Vector3<float>& vec) const noexcept
{
std::size_t hash = 0;
constexpr std::hash<float> hasher;
hash ^= hasher(vec.x) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
hash ^= hasher(vec.y) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
hash ^= hasher(vec.z) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
return hash;
}
};
template<class Type>
struct std::formatter<omath::Vector3<Type>> // NOLINT(*-dcl58-cpp)
{
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const omath::Vector3<Type>& vec, std::format_context& ctx)
{
return std::format_to(ctx.out(), "[{}, {}, {}]", vec.x, vec.y, vec.z);
}
};

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//
// Vector4.h
//
#pragma once
#include <algorithm>
#include "omath/linear_algebra/vector3.hpp"
namespace omath
{
template<class Type>
requires std::is_arithmetic_v<Type>
class Vector4 : public Vector3<Type>
{
public:
Type w;
constexpr Vector4(const Type& x, const Type& y, const Type& z, const Type& w): Vector3<Type>(x, y, z), w(w)
{
}
constexpr Vector4() noexcept: Vector3<Type>(), w(static_cast<Type>(0)) {};
[[nodiscard]]
constexpr bool operator==(const Vector4& other) const noexcept
{
return Vector3<Type>::operator==(other) && w == other.w;
}
[[nodiscard]]
constexpr bool operator!=(const Vector4& other) const noexcept
{
return !(*this == other);
}
constexpr Vector4& operator+=(const Vector4& other) noexcept
{
Vector3<Type>::operator+=(other);
w += other.w;
return *this;
}
constexpr Vector4& operator-=(const Vector4& other) noexcept
{
Vector3<Type>::operator-=(other);
w -= other.w;
return *this;
}
constexpr Vector4& operator*=(const Type& value) noexcept
{
Vector3<Type>::operator*=(value);
w *= value;
return *this;
}
constexpr Vector4& operator*=(const Vector4& other) noexcept
{
Vector3<Type>::operator*=(other);
w *= other.w;
return *this;
}
constexpr Vector4& operator/=(const Type& value) noexcept
{
Vector3<Type>::operator/=(value);
w /= value;
return *this;
}
constexpr Vector4& operator/=(const Vector4& other) noexcept
{
Vector3<Type>::operator/=(other);
w /= other.w;
return *this;
}
[[nodiscard]] constexpr Type length_sqr() const noexcept
{
return Vector3<Type>::length_sqr() + w * w;
}
[[nodiscard]] constexpr Type dot(const Vector4& other) const noexcept
{
return Vector3<Type>::dot(other) + w * other.w;
}
[[nodiscard]] Type length() const noexcept
{
return std::sqrt(length_sqr());
}
constexpr Vector4& abs() noexcept
{
Vector3<Type>::abs();
w = w < 0.f ? -w : w;
return *this;
}
constexpr Vector4& clamp(const Type& min, const Type& max) noexcept
{
this->x = std::clamp(this->x, min, max);
this->y = std::clamp(this->y, min, max);
this->z = std::clamp(this->z, min, max);
return *this;
}
[[nodiscard]]
constexpr Vector4 operator-() const noexcept
{
return {-this->x, -this->y, -this->z, -w};
}
[[nodiscard]]
constexpr Vector4 operator+(const Vector4& other) const noexcept
{
return {this->x + other.x, this->y + other.y, this->z + other.z, w + other.w};
}
[[nodiscard]]
constexpr Vector4 operator-(const Vector4& other) const noexcept
{
return {this->x - other.x, this->y - other.y, this->z - other.z, w - other.w};
}
[[nodiscard]]
constexpr Vector4 operator*(const Type& value) const noexcept
{
return {this->x * value, this->y * value, this->z * value, w * value};
}
[[nodiscard]]
constexpr Vector4 operator*(const Vector4& other) const noexcept
{
return {this->x * other.x, this->y * other.y, this->z * other.z, w * other.w};
}
[[nodiscard]]
constexpr Vector4 operator/(const Type& value) const noexcept
{
return {this->x / value, this->y / value, this->z / value, w / value};
}
[[nodiscard]]
constexpr Vector4 operator/(const Vector4& other) const noexcept
{
return {this->x / other.x, this->y / other.y, this->z / other.z, w / other.w};
}
[[nodiscard]]
constexpr Type sum() const noexcept
{
return Vector3<Type>::sum() + w;
}
[[nodiscard]]
bool operator<(const Vector4& other) const noexcept
{
return length() < other.length();
}
[[nodiscard]]
bool operator>(const Vector4& other) const noexcept
{
return length() > other.length();
}
[[nodiscard]]
bool operator<=(const Vector4& other) const noexcept
{
return length() <= other.length();
}
[[nodiscard]]
bool operator>=(const Vector4& other) const noexcept
{
return length() >= other.length();
}
#ifdef OMATH_IMGUI_INTEGRATION
[[nodiscard]]
ImVec4 to_im_vec4() const noexcept
{
return {
static_cast<float>(this->x),
static_cast<float>(this->y),
static_cast<float>(this->z),
static_cast<float>(w),
};
}
[[nodiscard]]
static Vector4<float> from_im_vec4(const ImVec4& other) noexcept
{
return {static_cast<Type>(other.x), static_cast<Type>(other.y), static_cast<Type>(other.z)};
}
#endif
};
} // namespace omath
template<class Type>
struct std::formatter<omath::Vector4<Type>> // NOLINT(*-dcl58-cpp)
{
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const omath::Vector4<Type>& vec, std::format_context& ctx)
{
return std::format_to(ctx.out(), "[{}, {}, {}, {}]", vec.x, vec.y, vec.z, vec.w);
}
};

108
include/omath/matrix.hpp
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#pragma once
#include <initializer_list>
#include <memory>
#include <string>
#include "omath/vector3.hpp"
namespace omath
{
class Matrix final
{
public:
Matrix();
Matrix(size_t rows, size_t columns);
Matrix(const std::initializer_list<std::initializer_list<float>>& rows);
[[nodiscard]]
static Matrix ToScreenMatrix(float screenWidth, float screenHeight);
[[nodiscard]]
static Matrix TranslationMatrix(const Vector3<float>& diff);
[[nodiscard]]
static Matrix OrientationMatrix(const Vector3<float>& forward, const Vector3<float>& right, const Vector3<float>& up);
[[nodiscard]]
static Matrix ProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
Matrix(const Matrix& other);
Matrix(size_t rows, size_t columns, const float* pRaw);
Matrix(Matrix&& other) noexcept;
[[nodiscard]]
size_t RowCount() const noexcept;
[[nodiscard]]
float& operator[](size_t row, size_t column);
[[nodiscard]]
size_t ColumnsCount() const noexcept;
[[nodiscard]]
std::pair<size_t, size_t> Size() const noexcept;
[[nodiscard]]
float& At(size_t iRow, size_t iCol);
[[nodiscard]]
float Sum();
void SetDataFromRaw(const float* pRawMatrix);
[[nodiscard]]
Matrix Transpose() const;
void Set(float val);
[[nodiscard]]
const float& At(size_t iRow, size_t iCol) const;
Matrix operator*(const Matrix& other) const;
Matrix& operator*=(const Matrix& other);
Matrix operator*(float f) const;
Matrix& operator*=(float f);
Matrix& operator/=(float f);
void Clear();
[[nodiscard]]
Matrix Strip(size_t row, size_t column) const;
[[nodiscard]]
float Minor(size_t i, size_t j) const;
[[nodiscard]]
float AlgComplement(size_t i, size_t j) const;
[[nodiscard]]
float Determinant() const;
[[nodiscard]]
const float* Raw() const;
Matrix& operator=(const Matrix& other);
Matrix& operator=(Matrix&& other) noexcept;
Matrix operator/(float f) const;
[[nodiscard]]
std::string ToString() const;
~Matrix();
private:
size_t m_rows;
size_t m_columns;
std::unique_ptr<float[]> m_data;
};
} // namespace omath

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include/omath/omath.hpp Normal file
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//
// omath.hpp - Main header file that includes all omath library components
// Created for the omath library
//
#pragma once
// Basic math utilities
#include "omath/angles.hpp"
#include "omath/angle.hpp"
// Vector classes (in dependency order)
#include "omath/linear_algebra/vector2.hpp"
#include "omath/linear_algebra/vector4.hpp"
#include "omath/linear_algebra/vector3.hpp"
// Matrix classes
#include "omath/linear_algebra/mat.hpp"
// Color functionality
#include "omath/color.hpp"
// Geometric primitives
#include "omath/triangle.hpp"
#include "omath/view_angles.hpp"
// 3D primitives
#include "omath/3d_primitives/box.hpp"
// Collision detection
#include "omath/collision/line_tracer.hpp"
// Pathfinding algorithms
#include "omath/pathfinding/a_star.hpp"
#include "omath/pathfinding/navigation_mesh.hpp"
// Projectile prediction
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include "omath/projectile_prediction/proj_pred_engine.hpp"
#include "omath/projectile_prediction/proj_pred_engine_legacy.hpp"
#include "omath/projectile_prediction/proj_pred_engine_avx2.hpp"
// Projection functionality
#include "omath/projection/error_codes.hpp"
#include "omath/projection/camera.hpp"
// Engine-specific implementations
// IW Engine
#include "omath/engines/iw_engine/constants.hpp"
#include "omath/engines/iw_engine/formulas.hpp"
#include "omath/engines/iw_engine/camera.hpp"
#include "omath/engines/iw_engine/traits/camera_trait.hpp"
#include "omath/engines/iw_engine/traits/pred_engine_trait.hpp"
// OpenGL Engine
#include "omath/engines/opengl_engine/constants.hpp"
#include "omath/engines/opengl_engine/formulas.hpp"
#include "omath/engines/opengl_engine/camera.hpp"
#include "omath/engines/opengl_engine/traits/camera_trait.hpp"
#include "omath/engines/opengl_engine/traits/pred_engine_trait.hpp"
// Source Engine
#include "omath/engines/source_engine/constants.hpp"
#include "omath/engines/source_engine/formulas.hpp"
#include "omath/engines/source_engine/camera.hpp"
#include "omath/engines/source_engine/traits/camera_trait.hpp"
#include "omath/engines/source_engine/traits/pred_engine_trait.hpp"
// Unity Engine
#include "omath/engines/unity_engine/constants.hpp"
#include "omath/engines/unity_engine/formulas.hpp"
#include "omath/engines/unity_engine/camera.hpp"
#include "omath/engines/unity_engine/traits/camera_trait.hpp"
#include "omath/engines/unity_engine/traits/pred_engine_trait.hpp"
// Unreal Engine
#include "omath/engines/unreal_engine/constants.hpp"
#include "omath/engines/unreal_engine/formulas.hpp"
#include "omath/engines/unreal_engine/camera.hpp"
#include "omath/engines/unreal_engine/traits/camera_trait.hpp"
#include "omath/engines/unreal_engine/traits/pred_engine_trait.hpp"

16
include/omath/pathfinding/a_star.hpp
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@@ -3,9 +3,9 @@
//
#pragma once
#include <vector>
#include "omath/linear_algebra/vector3.hpp"
#include "omath/pathfinding/navigation_mesh.hpp"
#include "omath/vector3.hpp"
#include <vector>
namespace omath::pathfinding
{
@@ -14,17 +14,17 @@ namespace omath::pathfinding
{
public:
[[nodiscard]]
static std::vector<Vector3<float>> FindPath(const Vector3<float>& start, const Vector3<float>& end,
const NavigationMesh& navMesh);
static std::vector<Vector3<float>> find_path(const Vector3<float>& start, const Vector3<float>& end,
const NavigationMesh& nav_mesh) noexcept;
private:
[[nodiscard]]
static std::vector<Vector3<float>>
ReconstructFinalPath(const std::unordered_map<Vector3<float>, PathNode>& closedList,
const Vector3<float>& current);
reconstruct_final_path(const std::unordered_map<Vector3<float>, PathNode>& closed_list,
const Vector3<float>& current) noexcept;
[[nodiscard]]
static auto GetPerfectNode(const std::unordered_map<Vector3<float>, PathNode>& openList,
const Vector3<float>& endVertex);
static auto get_perfect_node(const std::unordered_map<Vector3<float>, PathNode>& open_list,
const Vector3<float>& end_vertex) noexcept;
};
} // namespace omath::pathfinding

15
include/omath/pathfinding/navigation_mesh.hpp
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@@ -4,35 +4,34 @@
#pragma once
#include "omath/linear_algebra/vector3.hpp"
#include <expected>
#include <string>
#include <vector>
#include "omath/vector3.hpp"
namespace omath::pathfinding
{
enum Error
{
};
class NavigationMesh final
{
public:
[[nodiscard]]
std::expected<Vector3<float>, std::string> GetClosestVertex(const Vector3<float>& point) const;
std::expected<Vector3<float>, std::string> get_closest_vertex(const Vector3<float>& point) const noexcept;
[[nodiscard]]
const std::vector<Vector3<float>>& GetNeighbors(const Vector3<float>& vertex) const;
const std::vector<Vector3<float>>& get_neighbors(const Vector3<float>& vertex) const noexcept;
[[nodiscard]]
bool Empty() const;
bool empty() const;
[[nodiscard]] std::vector<uint8_t> Serialize() const;
[[nodiscard]] std::vector<uint8_t> serialize() const noexcept;
void Deserialize(const std::vector<uint8_t>& raw);
void deserialize(const std::vector<uint8_t>& raw) noexcept;
std::unordered_map<Vector3<float>, std::vector<Vector3<float>>> m_verTextMap;
std::unordered_map<Vector3<float>, std::vector<Vector3<float>>> m_vertex_map;
};
} // namespace omath::pathfinding

11
include/omath/projectile_prediction/proj_pred_engine.hpp
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@@ -2,19 +2,18 @@
// Created by Vlad on 2/23/2025.
//
#pragma once
#include "omath/linear_algebra/vector3.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include "omath/vector3.hpp"
namespace omath::projectile_prediction
{
class ProjPredEngine
class ProjPredEngineInterface
{
public:
[[nodiscard]]
virtual std::optional<Vector3<float>> MaybeCalculateAimPoint(const Projectile& projectile,
const Target& target) const = 0;
virtual ~ProjPredEngine() = default;
virtual std::optional<Vector3<float>> maybe_calculate_aim_point(const Projectile& projectile,
const Target& target) const = 0;
virtual ~ProjPredEngineInterface() = default;
};
} // namespace omath::projectile_prediction

24
include/omath/projectile_prediction/proj_pred_engine_avx2.hpp
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@@ -6,21 +6,23 @@
namespace omath::projectile_prediction
{
class ProjPredEngineAVX2 final : public ProjPredEngine
class ProjPredEngineAvx2 final : public ProjPredEngineInterface
{
public:
[[nodiscard]] std::optional<Vector3<float>> MaybeCalculateAimPoint(const Projectile& projectile,
const Target& target) const override;
[[nodiscard]] std::optional<Vector3<float>>
maybe_calculate_aim_point(const Projectile& projectile, const Target& target) const override;
ProjPredEngineAVX2(float gravityConstant, float simulationTimeStep, float maximumSimulationTime);
~ProjPredEngineAVX2() override = default;
ProjPredEngineAvx2(float gravity_constant, float simulation_time_step, float maximum_simulation_time);
~ProjPredEngineAvx2() override = default;
private:
[[nodiscard]] static std::optional<float> CalculatePitch(const Vector3<float>& projOrigin, const Vector3<float>& targetPos,
float bulletGravity, float v0, float time);
const float m_gravityConstant;
const float m_simulationTimeStep;
const float m_maximumSimulationTime;
[[nodiscard]] static std::optional<float> calculate_pitch(const Vector3<float>& proj_origin,
const Vector3<float>& target_pos,
float bullet_gravity, float v0, float time) ;
// We use [[maybe_unused]] here since AVX2 is not available for ARM and ARM64 CPU
[[maybe_unused]] const float m_gravity_constant;
[[maybe_unused]] const float m_simulation_time_step;
[[maybe_unused]] const float m_maximum_simulation_time;
};
} // namespace omath::projectile_prediction

125
include/omath/projectile_prediction/proj_pred_engine_legacy.hpp
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@@ -4,38 +4,131 @@
#pragma once
#include <optional>
#include "omath/linear_algebra/vector3.hpp"
#include "omath/engines/source_engine/traits/pred_engine_trait.hpp"
#include "omath/projectile_prediction/proj_pred_engine.hpp"
#include "omath/projectile_prediction/projectile.hpp"
#include "omath/projectile_prediction/target.hpp"
#include "omath/vector3.hpp"
#include <optional>
namespace omath::projectile_prediction
{
class ProjPredEngineLegacy final : public ProjPredEngine
template<class T>
concept PredEngineConcept =
requires(const Projectile& projectile, const Target& target, const Vector3<float>& vec_a,
const Vector3<float>& vec_b,
Vector3<float> v3, // by-value for calc_viewpoint_from_angles
float pitch, float yaw, float time, float gravity, std::optional<float> maybe_pitch) {
// Presence + return types
{ T::predict_projectile_position(projectile, pitch, yaw, time, gravity) } -> std::same_as<Vector3<float>>;
{ T::predict_target_position(target, time, gravity) } -> std::same_as<Vector3<float>>;
{ T::calc_vector_2d_distance(vec_a) } -> std::same_as<float>;
{ T::get_vector_height_coordinate(vec_b) } -> std::same_as<float>;
{ T::calc_viewpoint_from_angles(projectile, v3, maybe_pitch) } -> std::same_as<Vector3<float>>;
{ T::calc_direct_pitch_angle(vec_a, vec_b) } -> std::same_as<float>;
{ T::calc_direct_yaw_angle(vec_a, vec_b) } -> std::same_as<float>;
// Enforce noexcept as in PredEngineTrait
requires noexcept(T::predict_projectile_position(projectile, pitch, yaw, time, gravity));
requires noexcept(T::predict_target_position(target, time, gravity));
requires noexcept(T::calc_vector_2d_distance(vec_a));
requires noexcept(T::get_vector_height_coordinate(vec_b));
requires noexcept(T::calc_viewpoint_from_angles(projectile, v3, maybe_pitch));
requires noexcept(T::calc_direct_pitch_angle(vec_a, vec_b));
requires noexcept(T::calc_direct_yaw_angle(vec_a, vec_b));
};
template<class EngineTrait = source_engine::PredEngineTrait>
requires PredEngineConcept<EngineTrait>
class ProjPredEngineLegacy final : public ProjPredEngineInterface
{
public:
explicit ProjPredEngineLegacy(float gravityConstant, float simulationTimeStep, float maximumSimulationTime,
float distanceTolerance);
explicit ProjPredEngineLegacy(const float gravity_constant, const float simulation_time_step,
const float maximum_simulation_time, const float distance_tolerance)
: m_gravity_constant(gravity_constant), m_simulation_time_step(simulation_time_step),
m_maximum_simulation_time(maximum_simulation_time), m_distance_tolerance(distance_tolerance)
{
}
[[nodiscard]]
std::optional<Vector3<float>> MaybeCalculateAimPoint(const Projectile& projectile,
const Target& target) const override;
std::optional<Vector3<float>> maybe_calculate_aim_point(const Projectile& projectile,
const Target& target) const override
{
for (float time = 0.f; time < m_maximum_simulation_time; time += m_simulation_time_step)
{
const auto predicted_target_position =
EngineTrait::predict_target_position(target, time, m_gravity_constant);
const auto projectile_pitch =
maybe_calculate_projectile_launch_pitch_angle(projectile, predicted_target_position);
if (!projectile_pitch.has_value()) [[unlikely]]
continue;
if (!is_projectile_reached_target(predicted_target_position, projectile, projectile_pitch.value(),
time))
continue;
return EngineTrait::calc_viewpoint_from_angles(projectile, predicted_target_position, projectile_pitch);
}
return std::nullopt;
}
private:
const float m_gravityConstant;
const float m_simulationTimeStep;
const float m_maximumSimulationTime;
const float m_distanceTolerance;
const float m_gravity_constant;
const float m_simulation_time_step;
const float m_maximum_simulation_time;
const float m_distance_tolerance;
// Realization of this formula:
// https://stackoverflow.com/questions/54917375/how-to-calculate-the-angle-to-shoot-a-bullet-in-order-to-hit-a-moving-target
/*
\[
\theta \;=\; \arctan\!\Biggl(
\frac{%
v^{2}\;\pm\;\sqrt{\,v^{4}-g\!\left(gx^{2}+2yv^{2}\right)\,}
}{%
gx
}\Biggr)
\]
*/
[[nodiscard]]
std::optional<float> MaybeCalculateProjectileLaunchPitchAngle(const Projectile& projectile,
const Vector3<float>& targetPosition) const;
std::optional<float>
maybe_calculate_projectile_launch_pitch_angle(const Projectile& projectile,
const Vector3<float>& target_position) const noexcept
{
const auto bullet_gravity = m_gravity_constant * projectile.m_gravity_scale;
if (bullet_gravity == 0.f)
return EngineTrait::calc_direct_pitch_angle(projectile.m_origin, target_position);
const auto delta = target_position - projectile.m_origin;
const auto distance2d = EngineTrait::calc_vector_2d_distance(delta);
const auto distance2d_sqr = distance2d * distance2d;
const auto launch_speed_sqr = projectile.m_launch_speed * projectile.m_launch_speed;
float root = launch_speed_sqr * launch_speed_sqr
- bullet_gravity
* (bullet_gravity * distance2d_sqr
+ 2.0f * EngineTrait::get_vector_height_coordinate(delta) * launch_speed_sqr);
if (root < 0.0f) [[unlikely]]
return std::nullopt;
root = std::sqrt(root);
const float angle = std::atan((launch_speed_sqr - root) / (bullet_gravity * distance2d));
return angles::radians_to_degrees(angle);
}
[[nodiscard]]
bool IsProjectileReachedTarget(const Vector3<float>& targetPosition, const Projectile& projectile, float pitch,
float time) const;
bool is_projectile_reached_target(const Vector3<float>& target_position, const Projectile& projectile,
const float pitch, const float time) const noexcept
{
const auto yaw = EngineTrait::calc_direct_yaw_angle(projectile.m_origin, target_position);
const auto projectile_position =
EngineTrait::predict_projectile_position(projectile, pitch, yaw, time, m_gravity_constant);
return projectile_position.distance_to(target_position) <= m_distance_tolerance;
}
};
} // namespace omath::projectile_prediction

12
include/omath/projectile_prediction/projectile.hpp
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@@ -3,19 +3,15 @@
//
#pragma once
#include "omath/vector3.hpp"
#include "omath/linear_algebra/vector3.hpp"
namespace omath::projectile_prediction
{
class Projectile final
{
public:
[[nodiscard]]
Vector3<float> PredictPosition(float pitch, float yaw, float time, float gravity) const;
Vector3<float> m_origin;
float m_launchSpeed{};
float m_gravityScale{};
float m_launch_speed{};
float m_gravity_scale{};
};
}
} // namespace omath::projectile_prediction

18
include/omath/projectile_prediction/target.hpp
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@@ -3,27 +3,15 @@
//
#pragma once
#include "omath/vector3.hpp"
#include "omath/linear_algebra/vector3.hpp"
namespace omath::projectile_prediction
{
class Target final
{
public:
[[nodiscard]]
constexpr Vector3<float> PredictPosition(const float time, const float gravity) const
{
auto predicted = m_origin + m_velocity * time;
if (m_isAirborne)
predicted.z -= gravity * std::pow(time, 2.f) * 0.5f;
return predicted;
}
Vector3<float> m_origin;
Vector3<float> m_velocity;
bool m_isAirborne{};
bool m_is_airborne{};
};
}
} // namespace omath::projectile_prediction

227
include/omath/projection/camera.hpp
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@@ -4,12 +4,17 @@
#pragma once
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include "omath/projection/error_codes.hpp"
#include <expected>
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <type_traits>
#include "omath/projection/error_codes.hpp"
#ifdef OMATH_BUILD_TESTS
// ReSharper disable once CppInconsistentNaming
class UnitTestProjection_Projection_Test;
#endif
namespace omath::projection
{
@@ -19,163 +24,227 @@ namespace omath::projection
float m_width;
float m_height;
[[nodiscard]] constexpr float AspectRatio() const
[[nodiscard]] constexpr float aspect_ratio() const
{
return m_width / m_height;
}
};
using FieldOfView = Angle<float, 0.f, 180.f, AngleFlags::Clamped>;
template<class Mat4x4Type, class ViewAnglesType>
class Camera
template<class T, class MatType, class ViewAnglesType>
concept CameraEngineConcept =
requires(const Vector3<float>& cam_origin, const Vector3<float>& look_at, const ViewAnglesType& angles,
const FieldOfView& fov, const ViewPort& viewport, float znear, float zfar) {
// Presence + return types
{ T::calc_look_at_angle(cam_origin, look_at) } -> std::same_as<ViewAnglesType>;
{ T::calc_view_matrix(angles, cam_origin) } -> std::same_as<MatType>;
{ T::calc_projection_matrix(fov, viewport, znear, zfar) } -> std::same_as<MatType>;
// Enforce noexcept as in the trait declaration
requires noexcept(T::calc_look_at_angle(cam_origin, look_at));
requires noexcept(T::calc_view_matrix(angles, cam_origin));
requires noexcept(T::calc_projection_matrix(fov, viewport, znear, zfar));
};
template<class Mat4X4Type, class ViewAnglesType, class TraitClass>
requires CameraEngineConcept<TraitClass, Mat4X4Type, ViewAnglesType>
class Camera final
{
#ifdef OMATH_BUILD_TESTS
friend UnitTestProjection_Projection_Test;
#endif
public:
virtual ~Camera() = default;
Camera(const Vector3<float>& position, const ViewAnglesType& viewAngles, const ViewPort& viewPort,
const FieldOfView& fov, const float near, const float far) :
m_viewPort(viewPort), m_fieldOfView(fov), m_farPlaneDistance(far), m_nearPlaneDistance(near),
m_viewAngles(viewAngles), m_origin(position)
~Camera() = default;
Camera(const Vector3<float>& position, const ViewAnglesType& view_angles, const ViewPort& view_port,
const FieldOfView& fov, const float near, const float far) noexcept
: m_view_port(view_port), m_field_of_view(fov), m_far_plane_distance(far), m_near_plane_distance(near),
m_view_angles(view_angles), m_origin(position)
{
}
protected:
virtual void LookAt(const Vector3<float>& target) = 0;
[[nodiscard]] virtual Mat4x4Type CalcViewMatrix() const = 0;
[[nodiscard]] virtual Mat4x4Type CalcProjectionMatrix() const = 0;
[[nodiscard]] Mat4x4Type CalcViewProjectionMatrix() const
void look_at(const Vector3<float>& target)
{
return CalcProjectionMatrix() * CalcViewMatrix();
m_view_angles = TraitClass::calc_look_at_angle(m_origin, target);
}
[[nodiscard]] Mat4X4Type calc_view_projection_matrix() const noexcept
{
return TraitClass::calc_projection_matrix(m_field_of_view, m_view_port, m_near_plane_distance,
m_far_plane_distance)
* TraitClass::calc_view_matrix(m_view_angles, m_origin);
}
public:
[[nodiscard]] const Mat4x4Type& GetViewProjectionMatrix() const
[[nodiscard]] const Mat4X4Type& get_view_projection_matrix() const noexcept
{
if (!m_viewProjectionMatrix.has_value())
m_viewProjectionMatrix = CalcViewProjectionMatrix();
if (!m_view_projection_matrix.has_value())
m_view_projection_matrix = calc_view_projection_matrix();
return m_viewProjectionMatrix.value();
return m_view_projection_matrix.value();
}
void SetFieldOfView(const FieldOfView& fov)
void set_field_of_view(const FieldOfView& fov) noexcept
{
m_fieldOfView = fov;
m_viewProjectionMatrix = std::nullopt;
m_field_of_view = fov;
m_view_projection_matrix = std::nullopt;
}
void SetNearPlane(const float near)
void set_near_plane(const float near) noexcept
{
m_nearPlaneDistance = near;
m_viewProjectionMatrix = std::nullopt;
m_near_plane_distance = near;
m_view_projection_matrix = std::nullopt;
}
void SetFarPlane(const float far)
void set_far_plane(const float far) noexcept
{
m_farPlaneDistance = far;
m_viewProjectionMatrix = std::nullopt;
m_far_plane_distance = far;
m_view_projection_matrix = std::nullopt;
}
void SetViewAngles(const ViewAnglesType& viewAngles)
void set_view_angles(const ViewAnglesType& view_angles) noexcept
{
m_viewAngles = viewAngles;
m_viewProjectionMatrix = std::nullopt;
m_view_angles = view_angles;
m_view_projection_matrix = std::nullopt;
}
void SetOrigin(const Vector3<float>& origin)
void set_origin(const Vector3<float>& origin) noexcept
{
m_origin = origin;
m_viewProjectionMatrix = std::nullopt;
m_view_projection_matrix = std::nullopt;
}
void SetViewPort(const ViewPort& viewPort)
void set_view_port(const ViewPort& view_port) noexcept
{
m_viewPort = viewPort;
m_viewProjectionMatrix = std::nullopt;
m_view_port = view_port;
m_view_projection_matrix = std::nullopt;
}
[[nodiscard]] const FieldOfView& GetFieldOfView() const
[[nodiscard]] const FieldOfView& get_field_of_view() const noexcept
{
return m_fieldOfView;
return m_field_of_view;
}
[[nodiscard]] const float& GetNearPlane() const
[[nodiscard]] const float& get_near_plane() const noexcept
{
return m_nearPlaneDistance;
return m_near_plane_distance;
}
[[nodiscard]] const float& GetFarPlane() const
[[nodiscard]] const float& get_far_plane() const noexcept
{
return m_farPlaneDistance;
return m_far_plane_distance;
}
[[nodiscard]] const ViewAnglesType& GetViewAngles() const
[[nodiscard]] const ViewAnglesType& get_view_angles() const noexcept
{
return m_viewAngles;
return m_view_angles;
}
[[nodiscard]] const Vector3<float>& GetOrigin() const
[[nodiscard]] const Vector3<float>& get_origin() const noexcept
{
return m_origin;
}
[[nodiscard]] std::expected<Vector3<float>, Error> WorldToScreen(const Vector3<float>& worldPosition) const
[[nodiscard]] std::expected<Vector3<float>, Error>
world_to_screen(const Vector3<float>& world_position) const noexcept
{
auto normalizedCords = WorldToViewPort(worldPosition);
auto normalized_cords = world_to_view_port(world_position);
if (!normalizedCords.has_value())
return std::unexpected{normalizedCords.error()};
if (!normalized_cords.has_value())
return std::unexpected{normalized_cords.error()};
return NdcToScreenPosition(*normalizedCords);
return ndc_to_screen_position(*normalized_cords);
}
[[nodiscard]] std::expected<Vector3<float>, Error> WorldToViewPort(const Vector3<float>& worldPosition) const
[[nodiscard]] std::expected<Vector3<float>, Error>
world_to_view_port(const Vector3<float>& world_position) const noexcept
{
auto projected = GetViewProjectionMatrix() *
MatColumnFromVector<float, Mat4x4Type::GetStoreOrdering()>(worldPosition);
auto projected = get_view_projection_matrix()
* mat_column_from_vector<float, Mat4X4Type::get_store_ordering()>(world_position);
if (projected.At(3, 0) == 0.0f)
if (projected.at(3, 0) == 0.0f)
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
projected /= projected.At(3, 0);
projected /= projected.at(3, 0);
if (IsNdcOutOfBounds(projected))
if (is_ndc_out_of_bounds(projected))
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
return Vector3<float>{projected.At(0, 0), projected.At(1, 0), projected.At(2, 0)};
return Vector3<float>{projected.at(0, 0), projected.at(1, 0), projected.at(2, 0)};
}
[[nodiscard]]
std::expected<Vector3<float>, Error> view_port_to_screen(const Vector3<float>& ndc) const noexcept
{
const auto inv_view_proj = get_view_projection_matrix().inverted();
if (!inv_view_proj)
return std::unexpected(Error::INV_VIEW_PROJ_MAT_DET_EQ_ZERO);
auto inverted_projection =
inv_view_proj.value() * mat_column_from_vector<float, Mat4X4Type::get_store_ordering()>(ndc);
if (!inverted_projection.at(3, 0))
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
inverted_projection /= inverted_projection.at(3, 0);
return Vector3<float>{inverted_projection.at(0, 0), inverted_projection.at(1, 0),
inverted_projection.at(2, 0)};
}
[[nodiscard]]
std::expected<Vector3<float>, Error> screen_to_world(const Vector3<float>& screen_pos) const noexcept
{
return view_port_to_screen(screen_to_ndc(screen_pos));
}
[[nodiscard]]
std::expected<Vector3<float>, Error> screen_to_world(const Vector2<float>& screen_pos) const noexcept
{
const auto& [x, y] = screen_pos;
return screen_to_world({x, y, 1.f});
}
protected:
ViewPort m_viewPort{};
Angle<float, 0.f, 180.f, AngleFlags::Clamped> m_fieldOfView;
ViewPort m_view_port{};
Angle<float, 0.f, 180.f, AngleFlags::Clamped> m_field_of_view;
mutable std::optional<Mat4x4Type> m_viewProjectionMatrix;
mutable std::optional<Mat4X4Type> m_view_projection_matrix;
float m_farPlaneDistance;
float m_nearPlaneDistance;
float m_far_plane_distance;
float m_near_plane_distance;
ViewAnglesType m_viewAngles;
ViewAnglesType m_view_angles;
Vector3<float> m_origin;
private:
template<class Type>
[[nodiscard]]
constexpr static bool IsNdcOutOfBounds(const Type& ndc)
[[nodiscard]] constexpr static bool is_ndc_out_of_bounds(const Type& ndc) noexcept
{
return std::ranges::any_of(ndc.RawArray(), [](const auto& val) { return val < -1 || val > 1; });
return std::ranges::any_of(ndc.raw_array(), [](const auto& val) { return val < -1 || val > 1; });
}
[[nodiscard]] Vector3<float> NdcToScreenPosition(const Vector3<float>& ndc) const
[[nodiscard]] Vector3<float> ndc_to_screen_position(const Vector3<float>& ndc) const noexcept
{
return
{
(ndc.x + 1.f) / 2.f * m_viewPort.m_width,
(1.f - ndc.y) / 2.f * m_viewPort.m_height,
ndc.z
};
/*
^
| y
1 |
|
|
-1 ---------0--------- 1 --> x
|
|
-1 |
v
*/
return {(ndc.x + 1.f) / 2.f * m_view_port.m_width, (1.f - ndc.y) / 2.f * m_view_port.m_height, ndc.z};
}
[[nodiscard]] Vector3<float> screen_to_ndc(const Vector3<float>& screen_pos) const noexcept
{
return {screen_pos.x / m_view_port.m_width * 2.f - 1.f, 1.f - screen_pos.y / m_view_port.m_height * 2.f,
screen_pos.z};
}
};
} // namespace omath::projection

2
include/omath/projection/error_codes.hpp
View File

@@ -5,11 +5,11 @@
#pragma once
#include <cstdint>
namespace omath::projection
{
enum class Error : uint16_t
{
WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS,
INV_VIEW_PROJ_MAT_DET_EQ_ZERO,
};
}

57
include/omath/triangle.hpp
View File

@@ -2,19 +2,19 @@
// Created by Orange on 11/13/2024.
//
#pragma once
#include "omath/vector3.hpp"
#include "linear_algebra/vector3.hpp"
namespace omath
{
/*
|\
| \
a | \ hypot
| \
-----
b
*/
/*
v1
|\
| \
a | \ hypot
| \
v2 ----- v3
b
*/
template<class Vector>
class Triangle final
@@ -31,52 +31,53 @@ namespace omath
Vector3<float> m_vertex3;
[[nodiscard]]
constexpr Vector3<float> CalculateNormal() const
constexpr Vector3<float> calculate_normal() const
{
const auto b = SideBVector();
const auto a = SideAVector();
return b.Cross(a).Normalized();
const auto b = side_b_vector();
const auto a = side_a_vector();
return b.cross(a).normalized();
}
[[nodiscard]]
float SideALength() const
float side_a_length() const
{
return m_vertex1.DistTo(m_vertex2);
return m_vertex1.distance_to(m_vertex2);
}
[[nodiscard]]
float SideBLength() const
float side_b_length() const
{
return m_vertex3.DistTo(m_vertex2);
return m_vertex3.distance_to(m_vertex2);
}
[[nodiscard]]
constexpr Vector3<float> SideAVector() const
constexpr Vector3<float> side_a_vector() const
{
return m_vertex1 - m_vertex2;
}
[[nodiscard]]
constexpr float Hypot() const
constexpr float hypot() const
{
return m_vertex1.DistTo(m_vertex3);
return m_vertex1.distance_to(m_vertex3);
}
[[nodiscard]]
constexpr bool IsRectangular() const
constexpr bool is_rectangular() const
{
const auto sideA = SideALength();
const auto sideB = SideBLength();
const auto hypot = Hypot();
const auto side_a = side_a_length();
const auto side_b = side_b_length();
const auto hypot_value = hypot();
return std::abs(sideA*sideA + sideB*sideB - hypot*hypot) <= 0.0001f;
return std::abs(side_a * side_a + side_b * side_b - hypot_value * hypot_value) <= 0.0001f;
}
[[nodiscard]]
constexpr Vector3<float> SideBVector() const
constexpr Vector3<float> side_b_vector() const
{
return m_vertex3 - m_vertex2;
}
[[nodiscard]]
constexpr Vector3<float> MidPoint() const
constexpr Vector3<float> mid_point() const
{
return (m_vertex1 + m_vertex2 + m_vertex3) / 3;
}

208
include/omath/vector2.hpp
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@@ -1,208 +0,0 @@
//
// Created by Vlad on 02.09.2024.
//
#pragma once
#include <cmath>
#include <tuple>
#ifdef OMATH_IMGUI_INTEGRATION
#include <imgui.h>
#endif
namespace omath
{
template<class Type>
requires std::is_arithmetic_v<Type>
class Vector2
{
public:
Type x = static_cast<Type>(0);
Type y = static_cast<Type>(0);
// Constructors
constexpr Vector2() = default;
constexpr Vector2(const Type& x, const Type& y) : x(x), y(y)
{
}
// Equality operators
[[nodiscard]]
constexpr bool operator==(const Vector2& src) const
{
return x == src.x && y == src.y;
}
[[nodiscard]]
constexpr bool operator!=(const Vector2& src) const
{
return !(*this == src);
}
// Compound assignment operators
constexpr Vector2& operator+=(const Vector2& v)
{
x += v.x;
y += v.y;
return *this;
}
constexpr Vector2& operator-=(const Vector2& v)
{
x -= v.x;
y -= v.y;
return *this;
}
constexpr Vector2& operator*=(const Vector2& v)
{
x *= v.x;
y *= v.y;
return *this;
}
constexpr Vector2& operator/=(const Vector2& v)
{
x /= v.x;
y /= v.y;
return *this;
}
constexpr Vector2& operator*=(const Type& fl)
{
x *= fl;
y *= fl;
return *this;
}
constexpr Vector2& operator/=(const Type& fl)
{
x /= fl;
y /= fl;
return *this;
}
constexpr Vector2& operator+=(const Type& fl)
{
x += fl;
y += fl;
return *this;
}
constexpr Vector2& operator-=(const Type& fl)
{
x -= fl;
y -= fl;
return *this;
}
// Basic vector operations
[[nodiscard]] Type DistTo(const Vector2& vOther) const
{
return std::sqrt(DistToSqr(vOther));
}
[[nodiscard]] constexpr Type DistToSqr(const Vector2& vOther) const
{
return (x - vOther.x) * (x - vOther.x) + (y - vOther.y) * (y - vOther.y);
}
[[nodiscard]] constexpr Type Dot(const Vector2& vOther) const
{
return x * vOther.x + y * vOther.y;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr Type Length() const
{
return std::hypot(this->x, this->y);
}
[[nodiscard]] constexpr Vector2 Normalized() const
{
const Type len = Length();
return len > 0.f ? *this / len : *this;
}
#else
[[nodiscard]] Type Length() const
{
return std::hypot(x, y);
}
[[nodiscard]] Vector2 Normalized() const
{
const Type len = Length();
return len > 0.f ? *this / len : *this;
}
#endif
[[nodiscard]] constexpr Type LengthSqr() const
{
return x * x + y * y;
}
constexpr Vector2& Abs()
{
// FIXME: Replace with std::abs, if it will become constexprable
x = x < 0 ? -x : x;
y = y < 0 ? -y : y;
return *this;
}
[[nodiscard]] constexpr Vector2 operator-() const
{
return {-x, -y};
}
// Binary arithmetic operators
[[nodiscard]] constexpr Vector2 operator+(const Vector2& v) const
{
return {x + v.x, y + v.y};
}
[[nodiscard]] constexpr Vector2 operator-(const Vector2& v) const
{
return {x - v.x, y - v.y};
}
[[nodiscard]] constexpr Vector2 operator*(const float fl) const
{
return {x * fl, y * fl};
}
[[nodiscard]] constexpr Vector2 operator/(const float fl) const
{
return {x / fl, y / fl};
}
// Sum of elements
[[nodiscard]] constexpr Type Sum() const
{
return x + y;
}
[[nodiscard]]
constexpr std::tuple<Type, Type> AsTuple() const
{
return std::make_tuple(x, y);
}
#ifdef OMATH_IMGUI_INTEGRATION
[[nodiscard]]
ImVec2 ToImVec2() const
{
return {static_cast<float>(this->x), static_cast<float>(this->y)};
}
#endif
};
} // namespace omath

281
include/omath/vector3.hpp
View File

@@ -1,281 +0,0 @@
//
// Created by vlad on 10/28/23.
//
#pragma once
#include <cstdint>
#include <expected>
#include <functional>
#include "omath/angle.hpp"
#include "omath/vector2.hpp"
namespace omath
{
enum class Vector3Error
{
IMPOSSIBLE_BETWEEN_ANGLE,
};
template<class Type> requires std::is_arithmetic_v<Type>
class Vector3 : public Vector2<Type>
{
public:
Type z = static_cast<Type>(0);
constexpr Vector3(const Type& x, const Type& y, const Type& z) : Vector2<Type>(x, y), z(z) { }
constexpr Vector3() : Vector2<Type>() {};
[[nodiscard]] constexpr bool operator==(const Vector3& src) const
{
return Vector2<Type>::operator==(src) && (src.z == z);
}
[[nodiscard]] constexpr bool operator!=(const Vector3& src) const
{
return !(*this == src);
}
constexpr Vector3& operator+=(const Vector3& v)
{
Vector2<Type>::operator+=(v);
z += v.z;
return *this;
}
constexpr Vector3& operator-=(const Vector3& v)
{
Vector2<Type>::operator-=(v);
z -= v.z;
return *this;
}
constexpr Vector3& operator*=(const float fl)
{
Vector2<Type>::operator*=(fl);
z *= fl;
return *this;
}
constexpr Vector3& operator*=(const Vector3& v)
{
Vector2<Type>::operator*=(v);
z *= v.z;
return *this;
}
constexpr Vector3& operator/=(const Vector3& v)
{
Vector2<Type>::operator/=(v);
z /= v.z;
return *this;
}
constexpr Vector3& operator+=(const float fl)
{
Vector2<Type>::operator+=(fl);
z += fl;
return *this;
}
constexpr Vector3& operator/=(const float fl)
{
Vector2<Type>::operator/=(fl);
z /= fl;
return *this;
}
constexpr Vector3& operator-=(const float fl)
{
Vector2<Type>::operator-=(fl);
z -= fl;
return *this;
}
constexpr Vector3& Abs()
{
Vector2<Type>::Abs();
z = z < 0.f ? -z : z;
return *this;
}
[[nodiscard]] constexpr Type DistToSqr(const Vector3& vOther) const
{
return (*this - vOther).LengthSqr();
}
[[nodiscard]] constexpr Type Dot(const Vector3& vOther) const
{
return Vector2<Type>::Dot(vOther) + z * vOther.z;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr Type Length() const
{
return std::hypot(this->x, this->y, z);
}
[[nodiscard]] constexpr Type Length2D() const
{
return Vector2<Type>::Length();
}
[[nodiscard]] Type DistTo(const Vector3& vOther) const
{
return (*this - vOther).Length();
}
[[nodiscard]] constexpr Vector3 Normalized() const
{
const Type length = this->Length();
return length != 0 ? *this / length : *this;
}
#else
[[nodiscard]] Type Length() const
{
return std::hypot(this->x, this->y, z);
}
[[nodiscard]] Vector3 Normalized() const
{
const Type length = this->Length();
return length != 0 ? *this / length : *this;
}
[[nodiscard]] Type Length2D() const
{
return Vector2<Type>::Length();
}
[[nodiscard]] Type DistTo(const Vector3& vOther) const
{
return (*this - vOther).Length();
}
#endif
[[nodiscard]] constexpr Type LengthSqr() const
{
return Vector2<Type>::LengthSqr() + z * z;
}
[[nodiscard]] constexpr Vector3 operator-() const
{
return {-this->x, -this->y, -z};
}
[[nodiscard]] constexpr Vector3 operator+(const Vector3& v) const
{
return {this->x + v.x, this->y + v.y, z + v.z};
}
[[nodiscard]] constexpr Vector3 operator-(const Vector3& v) const
{
return {this->x - v.x, this->y - v.y, z - v.z};
}
[[nodiscard]] constexpr Vector3 operator*(const float fl) const
{
return {this->x * fl, this->y * fl, z * fl};
}
[[nodiscard]] constexpr Vector3 operator*(const Vector3& v) const
{
return {this->x * v.x, this->y * v.y, z * v.z};
}
[[nodiscard]] constexpr Vector3 operator/(const float fl) const
{
return {this->x / fl, this->y / fl, z / fl};
}
[[nodiscard]] constexpr Vector3 operator/(const Vector3& v) const
{
return {this->x / v.x, this->y / v.y, z / v.z};
}
[[nodiscard]] constexpr Vector3 Cross(const Vector3 &v) const
{
return
{
this->y * v.z - z * v.y,
z * v.x - this->x * v.z,
this->x * v.y - this->y * v.x
};
}
[[nodiscard]] constexpr Type Sum() const
{
return Sum2D() + z;
}
[[nodiscard]] std::expected<Angle<float, 0.f, 180.f, AngleFlags::Clamped>, Vector3Error>
AngleBetween(const Vector3& other) const
{
const auto bottom = Length() * other.Length();
if (bottom == 0.f)
return std::unexpected(Vector3Error::IMPOSSIBLE_BETWEEN_ANGLE);
return Angle<float, 0.f, 180.f, AngleFlags::Clamped>::FromRadians(std::acos(Dot(other) / bottom));
}
[[nodiscard]] bool IsPerpendicular(const Vector3& other) const
{
if (const auto angle = AngleBetween(other))
return angle->AsDegrees() == 90.f;
return false;
}
[[nodiscard]] constexpr Type Sum2D() const
{
return Vector2<Type>::Sum();
}
[[nodiscard]] constexpr std::tuple<Type, Type, Type> AsTuple() const
{
return std::make_tuple(this->x, this->y, z);
}
[[nodiscard]] Vector3 ViewAngleTo(const Vector3 &other) const
{
const float distance = DistTo(other);
const auto delta = other - *this;
return
{
angles::RadiansToDegrees(std::asin(delta.z / distance)),
angles::RadiansToDegrees(std::atan2(delta.y, delta.x)),
0
};
}
};
}
// ReSharper disable once CppRedundantNamespaceDefinition
namespace std
{
template<>
struct hash<omath::Vector3<float>>
{
std::size_t operator()(const omath::Vector3<float>& vec) const noexcept
{
std::size_t hash = 0;
constexpr std::hash<float> hasher;
hash ^= hasher(vec.x) + 0x9e3779b9 + (hash<<6) + (hash>>2);
hash ^= hasher(vec.y) + 0x9e3779b9 + (hash<<6) + (hash>>2);
hash ^= hasher(vec.z) + 0x9e3779b9 + (hash<<6) + (hash>>2);
return hash;
}
};
}

173
include/omath/vector4.hpp
View File

@@ -1,173 +0,0 @@
//
// Vector4.h
//
#pragma once
#include <algorithm>
#include <omath/vector3.hpp>
namespace omath
{
template <class Type>
class Vector4 : public Vector3<Type>
{
public:
Type w;
constexpr Vector4(const Type& x, const Type& y, const Type& z, const Type& w) : Vector3<Type>(x, y, z), w(w) {}
constexpr Vector4() : Vector3<Type>(), w(0) {};
[[nodiscard]]
constexpr bool operator==(const Vector4& src) const
{
return Vector3<Type>::operator==(src) && w == src.w;
}
[[nodiscard]]
constexpr bool operator!=(const Vector4& src) const
{
return !(*this == src);
}
constexpr Vector4& operator+=(const Vector4& v)
{
Vector3<Type>::operator+=(v);
w += v.w;
return *this;
}
constexpr Vector4& operator-=(const Vector4& v)
{
Vector3<Type>::operator-=(v);
w -= v.w;
return *this;
}
constexpr Vector4& operator*=(const float scalar)
{
Vector3<Type>::operator*=(scalar);
w *= scalar;
return *this;
}
constexpr Vector4& operator*=(const Vector4& v)
{
Vector3<Type>::operator*=(v);
w *= v.w;
return *this;
}
constexpr Vector4& operator/=(const float scalar)
{
Vector3<Type>::operator/=(scalar);
w /= scalar;
return *this;
}
constexpr Vector4& operator/=(const Vector4& v)
{
Vector3<Type>::operator/=(v);
w /= v.w;
return *this;
}
[[nodiscard]] constexpr Type LengthSqr() const
{
return Vector3<Type>::LengthSqr() + w * w;
}
[[nodiscard]] constexpr Type Dot(const Vector4& vOther) const
{
return Vector3<Type>::Dot(vOther) + w * vOther.w;
}
[[nodiscard]] Vector3<Type> Length() const
{
return std::sqrt(LengthSqr());
}
constexpr Vector4& Abs()
{
Vector3<Type>::Abs();
w = w < 0.f ? -w : w;
return *this;
}
constexpr Vector4& Clamp(const Type& min, const Type& max)
{
this->x = std::clamp(this->x, min, max);
this->y = std::clamp(this->y, min, max);
this->z = std::clamp(this->z, min, max);
return *this;
}
[[nodiscard]]
constexpr Vector4 operator-() const
{
return {-this->x, -this->y, -this->z, -w};
}
[[nodiscard]]
constexpr Vector4 operator+(const Vector4& v) const
{
return {this->x + v.x, this->y + v.y, this->z + v.z, w + v.w};
}
[[nodiscard]]
constexpr Vector4 operator-(const Vector4& v) const
{
return {this->x - v.x, this->y - v.y, this->z - v.z, w - v.w};
}
[[nodiscard]]
constexpr Vector4 operator*(const Type& scalar) const
{
return {this->x * scalar, this->y * scalar, this->z * scalar, w * scalar};
}
[[nodiscard]]
constexpr Vector4 operator*(const Vector4& v) const
{
return {this->x * v.x, this->y * v.y, this->z * v.z, w * v.w};
}
[[nodiscard]]
constexpr Vector4 operator/(const Type& scalar) const
{
return {this->x / scalar, this->y / scalar, this->z / scalar, w / scalar};
}
[[nodiscard]]
constexpr Vector4 operator/(const Vector4& v) const
{
return {this->x / v.x, this->y / v.y, this->z / v.z, w / v.w};
}
[[nodiscard]]
constexpr Type Sum() const
{
return Vector3<Type>::Sum() + w;
}
#ifdef OMATH_IMGUI_INTEGRATION
[[nodiscard]]
ImVec4 ToImVec4() const
{
return
{
static_cast<float>(this->x),
static_cast<float>(this->y),
static_cast<float>(this->z),
static_cast<float>(w),
};
}
#endif
};
}

2
include/omath/view_angles.hpp
View File

@@ -12,4 +12,4 @@ namespace omath
YawType yaw;
RollType roll;
};
}
} // namespace omath

30
source/3d_primitives/box.cpp
View File

@@ -3,27 +3,25 @@
//
#include "omath/3d_primitives/box.hpp"
namespace omath::primitives
{
std::array<Triangle<Vector3<float>>, 12> CreateBox(const Vector3<float>& top, const Vector3<float>& bottom,
const Vector3<float>& dirForward,
const Vector3<float>& dirRight,
const float ratio)
std::array<Triangle<Vector3<float>>, 12> create_box(const Vector3<float>& top, const Vector3<float>& bottom,
const Vector3<float>& dir_forward,
const Vector3<float>& dir_right, const float ratio) noexcept
{
const auto height = top.DistTo(bottom);
const auto sideSize = height / ratio;
const auto height = top.distance_to(bottom);
const auto side_size = height / ratio;
// corner layout (0‑3 bottom, 4‑7 top)
std::array<Vector3<float>, 8> p;
p[0] = bottom + (dirForward + dirRight) * sideSize; // front‑right‑bottom
p[1] = bottom + (dirForward - dirRight) * sideSize; // front‑left‑bottom
p[2] = bottom + (-dirForward + dirRight) * sideSize; // back‑right‑bottom
p[3] = bottom + (-dirForward - dirRight) * sideSize; // back‑left‑bottom
p[4] = top + (dirForward + dirRight) * sideSize; // front‑right‑top
p[5] = top + (dirForward - dirRight) * sideSize; // front‑left‑top
p[6] = top + (-dirForward + dirRight) * sideSize; // back‑right‑top
p[7] = top + (-dirForward - dirRight) * sideSize; // back‑left‑top
p[0] = bottom + (dir_forward + dir_right) * side_size; // front‑right‑bottom
p[1] = bottom + (dir_forward - dir_right) * side_size; // front‑left‑bottom
p[2] = bottom + (-dir_forward + dir_right) * side_size; // back‑right‑bottom
p[3] = bottom + (-dir_forward - dir_right) * side_size; // back‑left‑bottom
p[4] = top + (dir_forward + dir_right) * side_size; // front‑right‑top
p[5] = top + (dir_forward - dir_right) * side_size; // front‑left‑top
p[6] = top + (-dir_forward + dir_right) * side_size; // back‑right‑top
p[7] = top + (-dir_forward - dir_right) * side_size; // back‑left‑top
std::array<Triangle<Vector3<float>>, 12> poly;
@@ -53,4 +51,4 @@ namespace omath::primitives
return poly;
}
}
} // namespace omath::primitives

19
source/3d_primitives/plane.cpp Normal file
View File

@@ -0,0 +1,19 @@
//
// Created by Vlad on 8/28/2025.
//
#include "omath/3d_primitives/plane.hpp"
namespace omath::primitives
{
std::array<Triangle<Vector3<float>>, 2> create_plane(const Vector3<float>& vertex_a,
const Vector3<float>& vertex_b,
const Vector3<float>& direction, const float size) noexcept
{
const auto second_vertex_a = vertex_a + direction * size;
return std::array
{
Triangle{second_vertex_a, vertex_a, vertex_b},
Triangle{second_vertex_a, vertex_b + direction * size, vertex_b}
};
}
} // namespace omath::primitives

58
source/collision/line_tracer.cpp
View File

@@ -5,63 +5,57 @@
namespace omath::collision
{
bool LineTracer::CanTraceLine(const Ray& ray, const Triangle<Vector3<float>>& triangle)
bool LineTracer::can_trace_line(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept
{
return GetRayHitPoint(ray, triangle) == ray.end;
return get_ray_hit_point(ray, triangle) == ray.end;
}
Vector3<float> Ray::DirectionVector() const
Vector3<float> Ray::direction_vector() const noexcept
{
return end - start;
}
Vector3<float> Ray::DirectionVectorNormalized() const
Vector3<float> Ray::direction_vector_normalized() const noexcept
{
return DirectionVector().Normalized();
return direction_vector().normalized();
}
Vector3<float> LineTracer::GetRayHitPoint(const Ray& ray, const Triangle<Vector3<float>>& triangle)
Vector3<float> LineTracer::get_ray_hit_point(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept
{
constexpr float kEpsilon = std::numeric_limits<float>::epsilon();
constexpr float k_epsilon = std::numeric_limits<float>::epsilon();
const auto sideA = triangle.SideAVector();
const auto sideB = triangle.SideBVector();
const auto side_a = triangle.side_a_vector();
const auto side_b = triangle.side_b_vector();
const auto ray_dir = ray.direction_vector();
const auto rayDir = ray.DirectionVector();
const auto p = ray_dir.cross(side_b);
const auto det = side_a.dot(p);
const auto p = rayDir.Cross(sideB);
const auto det = sideA.Dot(p);
if (std::abs(det) < kEpsilon)
if (std::abs(det) < k_epsilon)
return ray.end;
const auto invDet = 1.0f / det;
const auto inv_det = 1.0f / det;
const auto t = ray.start - triangle.m_vertex2;
const auto u = t.Dot(p) * invDet;
const auto u = t.dot(p) * inv_det;
if ((u < 0 && std::abs(u) > kEpsilon) || (u > 1 && std::abs(u - 1) > kEpsilon))
if ((u < 0 && std::abs(u) > k_epsilon) || (u > 1 && std::abs(u - 1) > k_epsilon))
return ray.end;
const auto q = t.Cross(sideA);
const auto v = rayDir.Dot(q) * invDet;
const auto q = t.cross(side_a);
// ReSharper disable once CppTooWideScopeInitStatement
const auto v = ray_dir.dot(q) * inv_det;
if ((v < 0 && std::abs(v) > kEpsilon) || (u + v > 1 && std::abs(u + v - 1) > kEpsilon))
if ((v < 0 && std::abs(v) > k_epsilon) || (u + v > 1 && std::abs(u + v - 1) > k_epsilon))
return ray.end;
const auto tHit = sideB.Dot(q) * invDet;
const auto t_hit = side_b.dot(q) * inv_det;
if (ray.infinite_length)
{
if (tHit <= kEpsilon)
return ray.end;
}
else if (tHit <= kEpsilon || tHit > 1.0f - kEpsilon)
if (ray.infinite_length && t_hit <= k_epsilon)
return ray.end;
return ray.start + rayDir * tHit;
if (t_hit <= k_epsilon || t_hit > 1.0f - k_epsilon)
return ray.end;
return ray.start + ray_dir * t_hit;
}
} // namespace omath::collision

13
source/color.cpp
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@@ -1,13 +0,0 @@
//
// Created by vlad on 2/4/24.
//
#include "omath/color.hpp"
#include <algorithm>
#include <cmath>
namespace omath
{
}

34
source/engines/iw_engine/camera.cpp
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@@ -1,34 +0,0 @@
//
// Created by Vlad on 3/17/2025.
//
#include "omath/engines/iw_engine/camera.hpp"
#include "omath/engines/iw_engine/formulas.hpp"
namespace omath::iw_engine
{
Camera::Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, const float near, const float far) :
projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
{
}
void Camera::LookAt([[maybe_unused]] const Vector3<float>& target)
{
const float distance = m_origin.DistTo(target);
const auto delta = target - m_origin;
m_viewAngles.pitch = PitchAngle::FromRadians(std::asin(delta.z / distance));
m_viewAngles.yaw = -YawAngle::FromRadians(std::atan2(delta.y, delta.x));
m_viewAngles.roll = RollAngle::FromRadians(0.f);
}
Mat4x4 Camera::CalcViewMatrix() const
{
return iw_engine::CalcViewMatrix(m_viewAngles, m_origin);
}
Mat4x4 Camera::CalcProjectionMatrix() const
{
return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
m_farPlaneDistance);
}
} // namespace omath::openg

39
source/engines/iw_engine/formulas.cpp
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@@ -3,50 +3,49 @@
//
#include "omath/engines/iw_engine/formulas.hpp"
namespace omath::iw_engine
{
Vector3<float> ForwardVector(const ViewAngles& angles)
Vector3<float> forward_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector(kAbsForward);
const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_forward);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Vector3<float> RightVector(const ViewAngles& angles)
Vector3<float> right_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector(kAbsRight);
const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_right);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Vector3<float> UpVector(const ViewAngles& angles)
Vector3<float> up_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector(kAbsUp);
const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_up);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Mat4x4 RotationMatrix(const ViewAngles& angles)
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
{
return MatRotationAxisZ(angles.yaw) * MatRotationAxisY(angles.pitch) * MatRotationAxisX(angles.roll);
return mat_rotation_axis_z(angles.yaw) * mat_rotation_axis_y(angles.pitch) * mat_rotation_axis_x(angles.roll);
}
Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
{
return MatCameraView(ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
return mat_camera_view(forward_vector(angles), right_vector(angles), up_vector(angles), cam_origin);
}
Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
const float far)
Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
const float far) noexcept
{
// NOTE: Need magic number to fix fov calculation, since IW engine inherit Quake proj matrix calculation
constexpr auto kMultiplyFactor = 0.75f;
constexpr auto k_multiply_factor = 0.75f;
const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f) * kMultiplyFactor;
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f) * k_multiply_factor;
return {
{1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
{0, 1.f / (fovHalfTan), 0, 0},
{1.f / (aspect_ratio * fov_half_tan), 0, 0, 0},
{0, 1.f / (fov_half_tan), 0, 0},
{0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
{0, 0, 1, 0},
};

27
source/engines/iw_engine/traits/camera_trait.cpp Normal file
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//
// Created by Vlad on 8/11/2025.
//
#include "omath/engines/iw_engine/traits/camera_trait.hpp"
#include "omath/engines/iw_engine/formulas.hpp"
namespace omath::iw_engine
{
ViewAngles CameraTrait::calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept
{
const auto distance = cam_origin.distance_to(look_at);
const auto delta = cam_origin - look_at;
return {PitchAngle::from_radians(-std::asin(delta.z / distance)),
YawAngle::from_radians(std::atan2(delta.y, delta.x)), RollAngle::from_radians(0.f)};
}
Mat4X4 CameraTrait::calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
{
return iw_engine::calc_view_matrix(angles, cam_origin);
}
Mat4X4 CameraTrait::calc_projection_matrix(const projection::FieldOfView& fov,
const projection::ViewPort& view_port, const float near,
const float far) noexcept
{
return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far);
}
} // namespace omath::iw_engine

35
source/engines/opengl_engine/camera.cpp
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@@ -1,35 +0,0 @@
//
// Created by Orange on 12/23/2024.
//
#include "omath/engines/opengl_engine/camera.hpp"
#include "omath/engines/opengl_engine/formulas.hpp"
namespace omath::opengl_engine
{
Camera::Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, const float near, const float far) :
projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
{
}
void Camera::LookAt([[maybe_unused]] const Vector3<float>& target)
{
const float distance = m_origin.DistTo(target);
const auto delta = target - m_origin;
m_viewAngles.pitch = PitchAngle::FromRadians(std::asin(delta.z / distance));
m_viewAngles.yaw = -YawAngle::FromRadians(std::atan2(delta.y, delta.x));
m_viewAngles.roll = RollAngle::FromRadians(0.f);
}
Mat4x4 Camera::CalcViewMatrix() const
{
return opengl_engine::CalcViewMatrix(m_viewAngles, m_origin);
}
Mat4x4 Camera::CalcProjectionMatrix() const
{
return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
m_farPlaneDistance);
}
} // namespace omath::opengl

45
source/engines/opengl_engine/formulas.cpp
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@@ -3,47 +3,48 @@
//
#include "omath/engines/opengl_engine/formulas.hpp"
namespace omath::opengl_engine
{
Vector3<float> ForwardVector(const ViewAngles& angles)
Vector3<float> forward_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector<float, MatStoreType::COLUMN_MAJOR>(kAbsForward);
const auto vec
= rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_forward);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Vector3<float> RightVector(const ViewAngles& angles)
Vector3<float> right_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector<float, MatStoreType::COLUMN_MAJOR>(kAbsRight);
const auto vec
= rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_right);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Vector3<float> UpVector(const ViewAngles& angles)
Vector3<float> up_vector(const ViewAngles& angles) noexcept
{
const auto vec = RotationMatrix(angles) * MatColumnFromVector<float, MatStoreType::COLUMN_MAJOR>(kAbsUp);
const auto vec = rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_up);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
}
Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
{
return MatCameraView<float, MatStoreType::COLUMN_MAJOR>(-ForwardVector(angles), RightVector(angles),
UpVector(angles), cam_origin);
return mat_camera_view<float, MatStoreType::COLUMN_MAJOR>(-forward_vector(angles), right_vector(angles),
up_vector(angles), cam_origin);
}
Mat4x4 RotationMatrix(const ViewAngles& angles)
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
{
return MatRotationAxisX<float, MatStoreType::COLUMN_MAJOR>(-angles.pitch) *
MatRotationAxisY<float, MatStoreType::COLUMN_MAJOR>(-angles.yaw) *
MatRotationAxisZ<float, MatStoreType::COLUMN_MAJOR>(angles.roll);
return mat_rotation_axis_x<float, MatStoreType::COLUMN_MAJOR>(-angles.pitch)
* mat_rotation_axis_y<float, MatStoreType::COLUMN_MAJOR>(-angles.yaw)
* mat_rotation_axis_z<float, MatStoreType::COLUMN_MAJOR>(angles.roll);
}
Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
const float far)
Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
const float far) noexcept
{
const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f);
return {
{1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
{0, 1.f / (fovHalfTan), 0, 0},
{1.f / (aspect_ratio * fov_half_tan), 0, 0, 0},
{0, 1.f / (fov_half_tan), 0, 0},
{0, 0, -(far + near) / (far - near), -(2.f * far * near) / (far - near)},
{0, 0, -1, 0},
};

28
source/engines/opengl_engine/traits/camera_trait.cpp Normal file
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//
// Created by Vlad on 8/11/2025.
//
#include "omath/engines/opengl_engine/traits/camera_trait.hpp"
#include "omath/engines/opengl_engine/formulas.hpp"
namespace omath::opengl_engine
{
ViewAngles CameraTrait::calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept
{
const auto distance = cam_origin.distance_to(look_at);
const auto delta = cam_origin - look_at;
return {PitchAngle::from_radians(-std::asin(delta.y / distance)),
YawAngle::from_radians(std::atan2(delta.z, delta.x)), RollAngle::from_radians(0.f)};
}
Mat4X4 CameraTrait::calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
{
return opengl_engine::calc_view_matrix(angles, cam_origin);
}
Mat4X4 CameraTrait::calc_projection_matrix(const projection::FieldOfView& fov,
const projection::ViewPort& view_port, const float near,
const float far) noexcept
{
return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far);
}
} // namespace omath::opengl_engine

37
source/engines/source_engine/camera.cpp
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@@ -1,37 +0,0 @@
//
// Created by Orange on 12/4/2024.
//
#include "omath/engines/source_engine/camera.hpp"
#include "omath/engines/source_engine/formulas.hpp"
namespace omath::source_engine
{
Camera::Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
const projection::FieldOfView& fov, const float near, const float far) :
projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
{
}
void Camera::LookAt(const Vector3<float>& target)
{
const float distance = m_origin.DistTo(target);
const auto delta = target - m_origin;
m_viewAngles.pitch = PitchAngle::FromRadians(std::asin(delta.z / distance));
m_viewAngles.yaw = -YawAngle::FromRadians(std::atan2(delta.y, delta.x));
m_viewAngles.roll = RollAngle::FromRadians(0.f);
}
Mat4x4 Camera::CalcViewMatrix() const
{
return source_engine::CalcViewMatrix(m_viewAngles, m_origin);
}
Mat4x4 Camera::CalcProjectionMatrix() const
{
return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
m_farPlaneDistance);
}
} // namespace omath::source

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