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264 Commits
v1.0.1 ... v3.4.0

Author SHA1 Message Date
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51d93c4464 Removes outdated header comments 
Removes redundant and outdated header comments.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
Orange++
b06fd00673 Merge pull request #41 from orange-cpp/u/improved-cmake 
improved cmake, removed useless cmake files
 2025-04-30 21:31:34 +03:00
Orange
998c8f3a43 improved cmake, removed useless cmake files 2025-04-30 21:26:25 +03:00
Orange
faeef594b9 moved installation stuff to INSTALL.md 2025-04-30 18:15:46 +03:00
Orange++
40a301186e Merge pull request #40 from orange-cpp/u/orange/inverted-matrix 
U/orange/inverted matrix
 2025-04-29 20:53:02 +03:00
Orange
a41526c494 style fix 2025-04-29 20:52:41 +03:00
Orange
a0d1dc4313 added test case 2025-04-29 20:49:59 +03:00
Orange
1c5c9360c8 added inverse method 2025-04-29 20:33:39 +03:00
Orange
4615769682 added additional methods 2025-04-29 20:10:17 +03:00
Orange
4ef674f7b4 fixed infinite recursion in compile time 2025-04-29 20:08:27 +03:00
Orange
69b9049fb0 fixed gimba lock for unity 2025-04-26 00:52:46 +03:00
Orange
2734b58bdd fixed gimba lock for opengl camera 2025-04-26 00:32:53 +03:00
Orange
d7f1f49165 resetting state 2025-04-25 23:52:10 +03:00
Orange
94b1453cae removed .idea folder 2025-04-23 02:48:45 +03:00
Orange
3e67d8a99c added credits 2025-04-23 02:46:08 +03:00
Orange++
8c00ab3d9d Merge pull request #38 from orange-cpp/u/orange-cpp/3d-primitives 
U/orange cpp/3d primitives
 2025-04-18 17:00:38 +03:00
Orange
d14cb1e93e reset to default 2025-04-18 16:55:07 +03:00
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c692cf39e1 updated readme 2025-04-18 16:53:53 +03:00
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9c934c5d9c improved tests 2025-04-18 16:36:22 +03:00
Vladislav Alpatov
f8202b116d improved line tracer 2025-04-18 16:00:23 +03:00
Orange
8bf0bb8e0d improved line trace and box primitive 2025-04-18 13:56:08 +03:00
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a340766348 switched to polygons 2025-04-18 12:34:24 +03:00
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254674a62e fixed code style 2025-04-18 12:11:43 +03:00
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97c2da893b added ratio param 2025-04-18 01:33:47 +03:00
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0ce30a7038 added new build option 2025-04-18 00:51:07 +03:00
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492ddfd566 added box 2025-04-18 00:43:46 +03:00
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baf7ee8f88 fixed include 2025-04-16 20:35:17 +03:00
Orange++
9fde11733f Merge pull request #37 from orange-cpp/u/engine_rotation_mats 
U/engine rotation mats
 2025-04-16 23:21:58 +03:00
Orange
0069b8bd96 improved openg gl rotation matrix, added tests 2025-04-16 19:11:02 +03:00
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127bae0b78 added tests for source 2025-04-16 18:53:31 +03:00
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bed204a663 added unit tests 2025-04-16 18:35:50 +03:00
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3f6ea010dc fixed formating 2025-04-16 17:52:57 +03:00
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592a98f38c removed method from Mat added method for unity 2025-04-16 17:52:19 +03:00
Orange
7873047550 added func 
added rotation matrix for opengl

updated unit tests
 2025-04-16 17:40:00 +03:00
Orange
1601f3cbc8 added func 
added rotation matrix for opengl
 2025-04-16 17:40:00 +03:00
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2180f8ab97 removed whitespaces 2025-04-16 12:21:10 +03:00
Orange
b613ff9ef1 added missing header 2025-04-13 23:15:27 +03:00
Orange++
145eadfffa Merge pull request #36 from orange-cpp/u/orange-cpp/small-refactoring 
U/orange cpp/small refactoring
 2025-04-12 13:34:28 +03:00
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14acebad5f fixed tests 2025-04-12 00:04:07 +03:00
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4a7a631932 added const method to mat 2025-04-11 23:57:56 +03:00
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e08c22f604 added new build option 2025-04-11 23:54:56 +03:00
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1b47f45af9 improved naming 2025-04-11 23:30:07 +03:00
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466d8f7bec improvement 2025-04-11 23:20:16 +03:00
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3631c5d698 replaced with STL relization 2025-04-11 23:10:02 +03:00
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b58956efe3 added missing header 2025-04-11 22:59:56 +03:00
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fc1e0c62b8 disabled tests 2025-04-05 20:03:39 +03:00
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8e861b8a85 updated read me 2025-04-05 13:28:28 +03:00
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55085604fd added include 2025-04-05 13:20:18 +03:00
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7b712ed960 fixed for clang 2025-04-05 13:00:00 +03:00
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138c996393 oops 2025-03-29 22:03:30 +03:00
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0f2a858306 fixed in some cases confilcting with win api 2025-03-29 21:57:35 +03:00
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ea6c1cc929 fix 2025-03-29 18:20:17 +03:00
Orange++
eeb6e40909 Merge pull request #35 from orange-cpp/u/orange-cpp/imrpoved-color 
U/orange cpp/imrpoved color
 2025-03-29 17:43:36 +03:00
Orange
d72ad663cd added new methods 2025-03-29 05:41:55 +03:00
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3e75d32f59 fixed style 2025-03-29 04:00:35 +03:00
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a8ce5cbaa0 added vcpkg imgui package auto link 2025-03-29 01:56:09 +03:00
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79f76a0755 added new option 2025-03-29 01:53:04 +03:00
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5773cc7798 improved imgui handling 2025-03-24 21:48:51 +03:00
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b6b0184523 fixed for clang 2025-03-24 06:48:51 +03:00
Orange++
a797dd134a Update README.md 2025-03-24 06:46:02 +03:00
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dc43411bd2 fixed unity view matrix building 2025-03-24 06:30:09 +03:00
Orange++
8959161904 Merge pull request #34 from orange-cpp/u/orange-cpp/add-unity 
U/orange cpp/add unity
 2025-03-23 01:20:16 +03:00
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5d5bd215b2 fix 2025-03-23 01:17:05 +03:00
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a48a257648 removed comment 2025-03-23 01:12:46 +03:00
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ffba4e256a name fix 2025-03-23 01:06:36 +03:00
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d9219cdddb naming fixed 2025-03-23 01:02:11 +03:00
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5a1014a239 fix 2025-03-23 00:57:58 +03:00
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74f2241bcf uncommented test 2025-03-23 00:52:12 +03:00
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8977557a61 fix 2025-03-22 17:41:01 +03:00
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481d7b85df improved camera 2025-03-22 17:39:40 +03:00
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2b59fb6aa2 updated formulas 2025-03-22 08:36:06 +03:00
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4f037a1952 added unity engine tests 2025-03-22 08:12:16 +03:00
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ef11183c3f added camera files 2025-03-22 04:26:54 +03:00
Orange++
326d8baaae Update README.md 2025-03-21 05:31:44 +03:00
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e46067b0b9 fixed tests includes 2025-03-21 04:58:28 +03:00
Orange++
68ac7f7b3d Merge pull request #33 from orange-cpp/u/orange-cpp/changed-file-naming 
U/orange cpp/changed file naming
 2025-03-21 04:50:56 +03:00
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17de6d407c style fix 2025-03-21 04:48:38 +03:00
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59d686e252 fix 2025-03-21 04:47:01 +03:00
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713af1b772 fix 2025-03-21 04:46:23 +03:00
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a8922230b3 fixed name 2025-03-21 04:45:02 +03:00
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b8d79eb8b4 fixed example 2025-03-21 04:43:57 +03:00
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5acd166d8f fixed include names 2025-03-21 04:40:59 +03:00
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c7dda0ff10 changed source files naming 2025-03-21 04:30:17 +03:00
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2688d977a9 change 2025-03-21 04:21:31 +03:00
Vladislav Alpatov
b9ac44a901 renamed headers 2025-03-21 04:17:42 +03:00
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35658b1f6d Merge pull request #32 from orange-cpp/u/orange-cpp/examples 
U/orange cpp/examples
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8f4b61319f disabled tests by default 2025-03-19 20:13:06 +03:00
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832c2ea5ef removed inline functions 2025-03-19 20:07:44 +03:00
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50c336e044 added example 2025-03-19 19:16:22 +03:00
Vladislav Alpatov
e80e22bd5b added some files 2025-03-19 18:58:35 +03:00
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27576ed761 added alias 2025-03-19 18:50:47 +03:00
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f85243e892 improved print method 2025-03-19 00:56:56 +03:00
Orange++
9b6d0beb03 Update README.md 2025-03-17 18:20:40 +03:00
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ee9829af22 Merge pull request #31 from orange-cpp/u/orange-cpp/IWEngine 
Added Infinity Ward Engine Support
 2025-03-17 09:20:51 +03:00
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cd452b0397 updated comment 2025-03-17 09:14:42 +03:00
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2fa0c500a7 added magic number 2025-03-17 08:59:41 +03:00
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0740d0778c added iw engine files 2025-03-17 07:20:13 +03:00
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f5c271cfa6 changed naming of engines section 2025-03-17 05:27:00 +03:00
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064a31f527 Merge pull request #30 from orange-cpp/u/orange-cpp/imgui-integration 
ImGUI Vector integration
 2025-03-17 04:12:39 +03:00
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e5d0adf247 changed default option 2025-03-17 04:11:49 +03:00
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8fc107ec0f fix 2025-03-17 04:07:21 +03:00
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6dd72d2448 added convertors 2025-03-17 03:56:09 +03:00
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c76f6e91b0 fix 2025-03-17 02:41:08 +03:00
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d1d06c24ca unit tests buid off by defalut 2025-03-15 19:13:06 +03:00
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169011e238 fixed Vec3 Vec4 2025-03-15 19:11:31 +03:00
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934ca0da0a added explicit constructor for angle and comment for angle 2025-03-15 18:57:41 +03:00
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4200ef63a6 improved mat & camera interface 2025-03-15 18:53:18 +03:00
Orange
58e2c3b5b7 fixed members inititalization miss match 2025-03-14 19:43:50 +03:00
Vladislav Alpatov
c3202a3bc3 patch 2025-03-01 21:32:02 +03:00
Vladislav Alpatov
39ab9d065d added option to disable avx2 2025-03-01 21:30:53 +03:00
Vladislav Alpatov
ed372a1c78 fixed for clang support 2025-03-01 21:22:44 +03:00
Orange++
70313f5ae0 Merge pull request #29 from orange-cpp/u/orange-cpp/template-vectors 
Added template Vectors 2d 3d 4d
 2025-03-01 21:17:42 +03:00
Vladislav Alpatov
978656b573 refactored 2025-03-01 21:17:03 +03:00
Vladislav Alpatov
a0f746b84c fixed style 2025-03-01 21:15:26 +03:00
Vladislav Alpatov
6d0d267743 now template 2025-03-01 21:11:46 +03:00
Orange
9ba3bc754a removed define 2025-02-23 21:56:28 +03:00
Orange++
3d1844fa0e Merge pull request #28 from orange-cpp/u/orange-cpp/avx2-prediction 
U/orange cpp/avx2 prediction
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f21d29c6c2 added legacy impl 2025-02-23 10:10:35 +03:00
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28a35d5bc9 added more classes 2025-02-23 09:57:29 +03:00
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d9684ff73f read me update 2025-02-22 23:34:45 +03:00
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900501f37e added language mention 2025-02-22 23:34:45 +03:00
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5639cd0eb5 added AVX2 2025-02-22 23:34:45 +03:00
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244d01c313 Merge pull request #27 from orange-cpp/u/orange-cpp/unity-build-support 
added unity build support
 2025-02-22 23:33:03 +03:00
Orange
e31ffac103 added unity build support 2025-02-22 23:32:29 +03:00
Orange++
ae87257adf Merge pull request #26 from orange-cpp/u/orange-cpp/improved-astar 
Improved A*
 2025-02-22 23:06:33 +03:00
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906f5099d1 improvement 2025-02-16 10:57:03 +03:00
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96e4e1c9d6 added new method added concept for mat type 2025-02-16 10:06:04 +03:00
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872dbe146f Merge pull request #25 from orange-cpp/u/orange-cpp/hotfix 
improved cmake+hotfix of clang support
 2025-01-17 16:59:30 +03:00
Orange
e0dcb65e3f improved cmake+hotfix of clang support 2025-01-17 16:56:47 +03:00
Orange
d0c532df39 hot fix 2025-01-06 05:36:27 +03:00
Orange++
31907ceca3 Merge pull request #24 from orange-cpp/u/orange-cpp/improved-triangle-class 
U/orange cpp/improved triangle class
 2025-01-06 05:19:27 +03:00
Orange
afcfed4834 path 2025-01-06 05:17:42 +03:00
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835fd110ba fix 2025-01-06 05:15:12 +03:00
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29629a737d added some methods 2025-01-06 05:08:32 +03:00
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6a324e8c0e improvement 2025-01-06 04:42:43 +03:00
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42c84f2523 added midpoint for triangle class 2025-01-06 04:30:03 +03:00
Orange
9a4fb67289 hotfix 2025-01-02 20:32:25 +03:00
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824b301d40 small code improvement 2025-01-02 18:40:19 +03:00
Orange++
dcf466316c Merge pull request #23 from orange-cpp/u/orange-cpp/vec3-angle-calc 
added AngleBetween method for Vector3 + tests
 2025-01-02 12:54:27 +03:00
Orange
dc0bca14c5 added method + tests 2025-01-02 12:52:34 +03:00
Orange
b2db06a739 updated read me 2024-12-26 18:52:24 +03:00
Orange++
cdce07f2a5 Merge pull request #22 from orange-cpp/u/orange-cpp/improved-camera 
U/orange cpp/improved camera
 2024-12-26 18:42:17 +03:00
Orange
931937d010 added open gl stuff 2024-12-23 17:53:47 +03:00
Orange
af880be056 added methods 2024-12-23 15:34:38 +03:00
Orange++
c3bfd12971 Merge pull request #21 from orange-cpp/u/orange-cpp/dropped-shared-export 
U/orange cpp/dropped shared export
 2024-12-23 13:52:55 +03:00
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9ad8ec755b removed header 2024-12-23 13:52:12 +03:00
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409cd18de6 dropped .dll/.so support 2024-12-23 13:47:28 +03:00
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001c6a8a47 fixed vcs.mxl 2024-12-23 13:43:14 +03:00
Orange
30bc3f2c6d changed readme 2024-12-21 19:41:31 +03:00
Orange++
232f456a4d Merge pull request #20 from orange-cpp/u/orange-cpp/mat_sqr_brackets_op 
Added brand new operator[] support for Mat/Matrix class
 2024-12-21 19:34:51 +03:00
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2b9575311e added operator for matrix 2024-12-21 19:32:09 +03:00
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e497308349 added operator square brackets 2024-12-21 19:29:33 +03:00
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390e584aee updated version 2024-12-21 16:03:54 +03:00
Orange
93082d6a8d added components check 2024-12-21 15:53:47 +03:00
Orange++
c8c3c4e5fc Merge pull request #19 from luadebug/main 
Update README.md Vcpkg integration
 2024-12-21 14:31:30 +03:00
Saikari
24ad4ac698 Update README.md 2024-12-21 01:18:25 +03:00
179 changed files with 7232 additions and 3220 deletions
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.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
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AlignConsecutiveDeclarations: None
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AlignTrailingComments: false
AllowShortBlocksOnASingleLine: false
AllowShortBlocksOnASingleLine: Never
AllowShortFunctionsOnASingleLine: None
AlwaysBreakTemplateDeclarations: Yes
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AllowShortLoopsOnASingleLine: false
BreakTemplateDeclarations: Leave
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38
.github/ISSUE_TEMPLATE/bug_report.md vendored Normal file
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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.

10
.github/ISSUE_TEMPLATE/custom.md vendored Normal file
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@@ -0,0 +1,10 @@
---
name: Custom issue template
about: Describe this issue template's purpose here.
title: ''
labels: ''
assignees: ''
---

20
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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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.github/workflows/cmake-multi-platform.yml vendored Normal file
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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

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

8
.idea/.gitignore generated vendored Normal file
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@@ -0,0 +1,8 @@
# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

209
.idea/codeStyles/Project.xml generated Normal file
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@@ -0,0 +1,209 @@
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435
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<option name="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=82D01E1970D2F6419CE2737C415D3A01/@EntryIndexedValue" value="&lt;NamingElement Priority=&quot;3&quot; Title=&quot;Functions&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 function&quot; /&gt;&lt;type Name=&quot;member function&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" />
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</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>

2
.idea/modules.xml generated
View File

@@ -2,7 +2,7 @@
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/uml.iml" filepath="$PROJECT_DIR$/.idea/uml.iml" />
<module fileurl="file://$PROJECT_DIR$/.idea/omath.iml" filepath="$PROJECT_DIR$/.idea/omath.iml" />
</modules>
</component>
</project>

0
.idea/uml.iml → .idea/omath.iml generated
View File

1
.idea/vcs.xml generated
View File

@@ -2,7 +2,6 @@
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
<mapping directory="$PROJECT_DIR$/extlibs/glm" vcs="Git" />
<mapping directory="$PROJECT_DIR$/extlibs/googletest" vcs="Git" />
</component>
</project>

145
CMakeLists.txt
View File

@@ -1,44 +1,121 @@
cmake_minimum_required(VERSION 3.26)
project(omath VERSION 1.0.0)
project(omath VERSION 3.3.0 LANGUAGES CXX)
include(CMakePackageConfigHelpers)
set(CMAKE_CXX_STANDARD 26)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}")
option(OMATH_BUILD_TESTS "Build unit tests" ON)
option(OMATH_BUILD_TESTS "Build unit tests" ${PROJECT_IS_TOP_LEVEL})
option(OMATH_THREAT_WARNING_AS_ERROR "Set highest level of warnings and force compiler to treat them as errors" ON)
option(OMATH_BUILD_AS_SHARED_LIBRARY "Build Omath as .so or .dll" OFF)
option(OMATH_USE_AVX2 "Omath will use AVX2 to boost performance" ON)
option(OMATH_IMGUI_INTEGRATION "Omath will define method to convert omath types to imgui types" OFF)
option(OMATH_BUILD_EXAMPLES "Build example projects with you can learn & play" OFF)
option(OMATH_STATIC_MSVC_RUNTIME_LIBRARY "Force Omath to link static runtime" OFF)
option(OMATH_SUPRESS_SAFETY_CHECKS "Supress some safety checks in release build to improve general performance" ON)
option(OMATH_USE_UNITY_BUILD "Will enable unity build to speed up compilation" ON)
option(OMATH_ENABLE_LEGACY "Will enable legacy classes that MUST be used ONLY for backward compatibility" OFF)
message(STATUS "[${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 "${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp")
if (OMATH_BUILD_AS_SHARED_LIBRARY)
add_library(omath SHARED source/Vector3.cpp)
else()
add_library(omath STATIC source/Vector3.cpp)
endif()
add_library(${PROJECT_NAME} SHARED ${OMATH_SOURCES} ${OMATH_HEADERS})
else ()
add_library(${PROJECT_NAME} STATIC ${OMATH_SOURCES} ${OMATH_HEADERS})
endif ()
target_compile_definitions(omath PUBLIC OMATH_EXPORT)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
target_compile_options(omath PRIVATE /Zc:static_assert-)
endif()
if (OMATH_IMGUI_INTEGRATION)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_IMGUI_INTEGRATION)
add_subdirectory(source)
# IMGUI is being linked as submodule
if (TARGET imgui)
target_link_libraries(${PROJECT_NAME} PUBLIC imgui)
install(TARGETS imgui
EXPORT omathTargets
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
RUNTIME DESTINATION bin)
else ()
# Assume that IMGUI linked via VCPKG.
find_package(imgui CONFIG REQUIRED)
target_link_libraries(${PROJECT_NAME} PUBLIC imgui::imgui)
endif ()
if(OMATH_BUILD_TESTS)
endif ()
if (OMATH_USE_AVX2)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_USE_AVX2)
endif ()
if (OMATH_SUPRESS_SAFETY_CHECKS)
target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_SUPRESS_SAFETY_CHECKS)
endif ()
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(${PROJECT_NAME} PROPERTIES
UNITY_BUILD ON
UNITY_BUILD_BATCH_SIZE 20)
endif ()
if (OMATH_STATIC_MSVC_RUNTIME_LIBRARY)
set_target_properties(${PROJECT_NAME} PROPERTIES
MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>"
)
endif ()
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
target_compile_options(${PROJECT_NAME} PRIVATE -mavx2 -mfma)
endif ()
target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)
if (OMATH_BUILD_TESTS)
add_subdirectory(extlibs)
add_subdirectory(tests)
endif()
endif ()
if (OMATH_BUILD_EXAMPLES)
add_subdirectory(examples)
endif ()
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND OMATH_THREAT_WARNING_AS_ERROR)
target_compile_options(omath PRIVATE /W4 /WX)
elseif(OMATH_THREAT_WARNING_AS_ERROR)
target_compile_options(omath PRIVATE -Wall -Wextra -Wpedantic -Werror)
endif()
target_compile_options(${PROJECT_NAME} PRIVATE /W4 /WX)
elseif (OMATH_THREAT_WARNING_AS_ERROR)
target_compile_options(${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
@@ -48,21 +125,21 @@ 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 ${PROJECT_NAME}
)
@@ -77,12 +154,12 @@ write_basic_package_version_file(
configure_package_config_file(
"${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}
)

36
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",
@@ -64,6 +64,38 @@
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Release"
}
},
{
"name": "darwin-base",
"hidden": true,
"generator": "Ninja",
"binaryDir": "${sourceDir}/cmake-build/build/${presetName}",
"installDir": "${sourceDir}/cmake-build/install/${presetName}",
"cacheVariables": {
"CMAKE_C_COMPILER": "clang",
"CMAKE_CXX_COMPILER": "clang++"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Darwin"
}
},
{
"name": "darwin-debug",
"displayName": "Darwin Debug",
"inherits": "darwin-base",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug"
}
},
{
"name": "darwin-release",
"displayName": "Darwin Release",
"inherits": "darwin-debug",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Release"
}
}
]
}

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.

11
CREDITS.md Normal file
View File

@@ -0,0 +1,11 @@
# OMATH CREDITS
Thanks to everyone who made this possible, including:
- Saikari aka luadebug for VCPKG port.
And a big hand to everyone else who has contributed over the past!
THANKS! <3
-- Orange++ <orange-cpp@yandex.ru>

68
INSTALL.md Normal file
View File

@@ -0,0 +1,68 @@
# 📥Installation Guide
## <img width="28px" src="https://vcpkg.io/assets/mark/mark.svg" /> Using vcpkg
**Note**: Support vcpkg for package management
1. Install [vcpkg](https://github.com/microsoft/vcpkg)
2. Run the following command to install the orange-math package:
```
vcpkg install orange-math
```
CMakeLists.txt
```cmake
find_package(omath CONFIG REQUIRED)
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**
Install needed tools: cmake, clang, git, msvc (windows only).
1. **Linux:**
```bash
sudo pacman -Sy cmake ninja clang git
```
2. **MacOS:**
```bash
brew install llvm git cmake ninja
```
3. **Windows:**
Install Visual Studio from [here](https://visualstudio.microsoft.com/downloads/) and Git from [here](https://git-scm.com/downloads).
Use x64 Native Tools shell to execute needed commands down below.
2. **Clone the repository:**
```bash
git clone https://github.com/orange-cpp/omath.git
```
3. **Navigate to the project directory:**
```bash
cd omath
```
4. **Build the project using CMake:**
```bash
cmake --preset windows-release -S .
cmake --build cmake-build/build/windows-release --target omath -j 6
```
Use **\<platform\>-\<build configuration\>** preset to build siutable version for yourself. Like **windows-release** or **linux-release**.
| Platform Name | Build Config |
|---------------|---------------|
| windows | release/debug |
| linux | release/debug |
| darwin | release/debug |

20
LICENSE
View File

@@ -1,9 +1,17 @@
The MIT License (MIT)
Copyright (C) 2024-2025 Orange++ <orange-cpp@yandex.ru>
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.

106
README.md
View File

@@ -1,72 +1,102 @@
<div align = center>
![banner](https://i.imgur.com/sjtpKi8.png)
![banner](https://github.com/orange-cpp/omath/blob/main/.github/images/banner.png?raw=true)
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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.
## Features
- **Efficiency**: Optimized for performance, ensuring quick computations.
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## 👁‍🗨 Features
- **Efficiency**: Optimized for performance, ensuring quick computations using AVX2.
- **Versatility**: Includes a wide array of mathematical functions and algorithms.
- **Ease of Use**: Simplified interface for convenient integration into various projects.
- **Projectile Prediction**: Projectile prediction engine with O(N) algo complexity, that can power you projectile aim-bot.
- **3D Projection**: No need to find view-projection matrix anymore you can make your own projection pipeline.
- **Collision Detection**: Production ready code to handle collision detection by using simple interfaces.
- **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!
## Getting Started
### Prerequisites
- C++ Compiler
- CMake (for building the project)
## Supported Render Pipelines
| ENGINE | SUPPORT |
|----------|---------|
| Source | ✅YES |
| Unity | ✅YES |
| IWEngine | ✅YES |
| OpenGL | ✅YES |
| Unreal | ✅YES |
### Installation
1. Clone the repository:
```
git clone https://github.com/orange-cpp/omath.git
```
2. Navigate to the project directory:
```
cd omath
```
3. Build the project using CMake:
```
cmake --preset windows-release -S .
cmake --build cmake-build/build/windows-release --target server -j 6
```
Use **\<platform\>-\<build configuration\>** preset to build siutable version for yourself. Like **windows-release** or **linux-release**.
## Usage
Simple world to screen function
## Supported Operating Systems
| OS | SUPPORT |
|----------------|---------|
| Windows 10/11 | ✅YES |
| 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
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</summary>
<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)
![Watch Video](https://youtu.be/lM_NJ1yCunw?si=5E87OrQMeypxSJ3E)
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
## 🫵🏻 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.
## 📜 License
This project is licensed under the ZLIB - see the `LICENSE` file for details.
## Acknowledgments
- Orange | [Telegram](https://t.me/orange_cpp)
## 💘 Acknowledgments
- [All contributors](https://github.com/orange-cpp/omath/graphs/contributors)

5
cmake/omathConfig.cmake.in
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@@ -2,5 +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)

4
examples/CMakeLists.txt Normal file
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@@ -0,0 +1,4 @@
project(examples)
add_executable(ExampleProjectionMatrixBuilder example_proj_mat_builder.cpp)
target_link_libraries(ExampleProjectionMatrixBuilder PRIVATE omath::omath)

40
examples/example_proj_mat_builder.cpp Normal file
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@@ -0,0 +1,40 @@
//
// Created by Vlad on 3/19/2025.
//
#include <iostream>
#include <print>
#include <omath/engines/opengl_engine/formulas.hpp>
int main()
{
std::println("OMATH Projection Matrix Builder");
float fov = 0;
float near = 0;
float far = 0;
float view_port_width = 0;
float view_port_height = 0;
std::print("Enter camera fov: ");
std::cin >> fov;
std::print("Enter camera z near: ");
std::cin >> near;
std::print("Enter camera z far: ");
std::cin >> far;
std::print("Enter camera screen width: ");
std::cin >> view_port_width;
std::print("Enter camera screen height: ");
std::cin >> view_port_height;
const auto mat =
omath::opengl_engine::calc_perspective_projection_matrix(fov, view_port_width / view_port_height, near, far);
std::print("{}", mat.to_string());
};

2
extlibs/googletest

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

17
include/omath/3d_primitives/box.hpp Normal file
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@@ -0,0 +1,17 @@
//
// Created by Vlad on 4/18/2025.
//
#pragma once
#include <array>
#include "omath/triangle.hpp"
#include "omath/vector3.hpp"
namespace omath::primitives
{
[[nodiscard]]
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;
}

63
include/omath/Angles.hpp
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@@ -1,63 +0,0 @@
//
// Created by vlad on 11/6/23.
//
#pragma once
#include <numbers>
#include <cmath>
namespace omath::angles
{
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type RadiansToDegrees(const Type& radians)
{
return radians * (Type(180) / std::numbers::pi_v<Type>);
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type DegreesToRadians(const Type& degrees)
{
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);
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] Type VerticalFovToHorizontal(const Type& vertFov, const Type& aspect)
{
const auto fovRad = DegreesToRadians(vertFov);
const auto horFov = Type(2) * std::atan(std::tan(fovRad / Type(2)) * aspect);
return RadiansToDegrees(horFov);
}
template<class Type>
requires std::is_arithmetic_v<Type>
[[nodiscard]] Type WrapAngle(const Type& angle, const Type& min, const Type& max)
{
if (angle <= max && angle >= min)
return angle;
const Type range = max - min;
Type wrappedAngle = std::fmod(angle - min, range);
if (wrappedAngle < 0)
wrappedAngle += range;
return wrappedAngle + min;
}
}

123
include/omath/Color.hpp
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@@ -1,123 +0,0 @@
//
// Created by vlad on 2/4/24.
//
#pragma once
#include "omath/Vector3.hpp"
#include <cstdint>
#include "omath/Vector4.hpp"
#include "omath/omath_export.hpp"
namespace omath
{
struct OMATH_API HSV
{
float m_hue{};
float m_saturation{};
float m_value{};
};
class OMATH_API Color final : public Vector4
{
public:
constexpr Color(float r, float g, float b, float a) : Vector4(r,g,b,a)
{
Clamp(0.f, 1.f);
}
constexpr explicit Color() : Vector4()
{
}
[[nodiscard]]
constexpr static Color FromRGBA(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
return Color{Vector4(r, g, b, a) / 255.f};
}
[[nodiscard]]
constexpr static Color FromHSV(float hue, float saturation, float value)
{
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 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;
default: return {0.f, 0.f, 0.f, 0.f};
}
return {r, g, b, 1.f};
}
[[nodiscard]]
constexpr HSV ToHSV() const
{
HSV hsvData;
const float& red = x;
const float& green = y;
const float& blue = z;
const float max = std::max({red, green, blue});
const float min = std::min({red, green, blue});
const float delta = max - min;
if (delta == 0.f)
hsvData.m_hue = 0.f;
else if (max == red)
hsvData.m_hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
else if (max == green)
hsvData.m_hue = 60.f * (((blue - red) / delta) + 2.f);
else if (max == blue)
hsvData.m_hue = 60.f * (((red - green) / delta) + 4.f);
if (hsvData.m_hue < 0.f)
hsvData.m_hue += 360.f;
hsvData.m_hue /= 360.f;
hsvData.m_saturation = max == 0.f ? 0.f : delta / max;
hsvData.m_value = max;
return hsvData;
}
constexpr explicit Color(const Vector4& vec) : Vector4(vec)
{
Clamp(0.f, 1.f);
}
[[nodiscard]]
constexpr Color Blend(const Color& other, float ratio) const
{
return Color( (*this * (1.f - ratio)) + (other * ratio) );
}
[[nodiscard]] static constexpr Color Red() {return {1.f, 0.f, 0.f, 1.f};}
[[nodiscard]] static constexpr Color Green() {return {0.f, 1.f, 0.f, 1.f};}
[[nodiscard]] static constexpr Color Blue() {return {0.f, 0.f, 1.f, 1.f};}
};
[[nodiscard]]
constexpr Color Blend(const Color& first, const Color& second, float ratio)
{
return Color{first * (1.f - std::clamp(ratio, 0.f, 1.f)) + second * ratio};
}
}

410
include/omath/Mat.hpp
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@@ -1,410 +0,0 @@
//
// Created by vlad on 9/29/2024.
//
#pragma once
#include <algorithm>
#include <array>
#include <sstream>
#include <stdexcept>
#include <utility>
#include "Vector3.hpp"
#include "omath/omath_export.hpp"
namespace omath
{
struct OMATH_API MatSize
{
size_t rows, columns;
};
enum class MatStoreType : uint8_t
{
ROW_MAJOR = 0,
COLUMN_MAJOR
};
template<size_t Rows = 0, size_t Columns = 0, class Type = float, MatStoreType StoreType = MatStoreType::ROW_MAJOR>
requires std::is_arithmetic_v<Type>
class Mat final
{
public:
OMATH_API constexpr Mat()
{
Clear();
}
OMATH_API constexpr static MatStoreType GetStoreOrdering()
{
return StoreType;
}
OMATH_API constexpr Mat(const std::initializer_list<std::initializer_list<Type>>& rows)
{
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)
{
if (rowIt->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)
{
At(i, j) = std::move(*colIt);
}
}
}
OMATH_API constexpr explicit Mat(const Type* rawData)
{
std::copy_n(rawData, Rows * Columns, m_data.begin());
}
OMATH_API constexpr Mat(const Mat& other) noexcept
{
m_data = other.m_data;
}
OMATH_API constexpr Mat(Mat&& other) noexcept
{
m_data = std::move(other.m_data);
}
[[nodiscard]]
OMATH_API static constexpr size_t RowCount() noexcept
{
return Rows;
}
[[nodiscard]]
OMATH_API static constexpr size_t ColumnsCount() noexcept
{
return Columns;
}
[[nodiscard]]
OMATH_API static consteval MatSize Size() noexcept
{
return {Rows, Columns};
}
[[nodiscard]] OMATH_API constexpr const Type& At(const size_t rowIndex, const size_t columnIndex) const
{
if (rowIndex >= Rows || columnIndex >= Columns)
throw std::out_of_range("Index out of range");
if constexpr (StoreType == MatStoreType::ROW_MAJOR)
return m_data[rowIndex * Columns + columnIndex];
else if constexpr (StoreType == MatStoreType::COLUMN_MAJOR)
return m_data[rowIndex + columnIndex * Rows];
else
{
static_assert(false, "Invalid matrix access convention");
std::unreachable();
}
}
[[nodiscard]] OMATH_API constexpr Type& At(const size_t rowIndex, const size_t columnIndex)
{
return const_cast<Type&>(std::as_const(*this).At(rowIndex, columnIndex));
}
[[nodiscard]]
OMATH_API constexpr Type Sum() const noexcept
{
Type sum = 0;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
sum += At(i, j);
return sum;
}
OMATH_API constexpr void Clear() noexcept
{
Set(0);
}
OMATH_API constexpr void Set(const Type& value) noexcept
{
std::ranges::fill(m_data, value);
}
// Operator overloading for multiplication with another Mat
template<size_t OtherColumns>
constexpr Mat<Rows, OtherColumns, Type, StoreType>
OMATH_API operator*(const Mat<Columns, OtherColumns, Type, StoreType>& other) const
{
Mat<Rows, OtherColumns, Type, StoreType> result;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < OtherColumns; ++j)
{
Type sum = 0;
for (size_t k = 0; k < Columns; ++k)
sum += At(i, k) * other.At(k, j);
result.At(i, j) = sum;
}
return result;
}
OMATH_API constexpr Mat& operator*=(const Type& f) noexcept
{
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
At(i, j) *= f;
return *this;
}
template<size_t OtherColumns>
constexpr Mat<Rows, OtherColumns, Type, StoreType>
OMATH_API operator*=(const Mat<Columns, OtherColumns, Type, StoreType>& other)
{
return *this = *this * other;
}
OMATH_API constexpr Mat operator*(const Type& f) const noexcept
{
Mat result(*this);
result *= f;
return result;
}
OMATH_API constexpr Mat& operator/=(const Type& f) noexcept
{
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
At(i, j) /= f;
return *this;
}
OMATH_API constexpr Mat operator/(const Type& f) const noexcept
{
Mat result(*this);
result /= f;
return result;
}
OMATH_API constexpr Mat& operator=(const Mat& other) noexcept
{
if (this == &other)
return *this;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
At(i, j) = other.At(i, j);
return *this;
}
OMATH_API constexpr Mat& operator=(Mat&& other) noexcept
{
if (this == &other)
return *this;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < Columns; ++j)
At(i, j) = other.At(i, j);
return *this;
}
[[nodiscard]]
OMATH_API 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);
return transposed;
}
[[nodiscard]]
OMATH_API constexpr Type Determinant() const
{
static_assert(Rows == Columns, "Determinant is only defined for square matrices.");
if constexpr (Rows == 1)
return At(0, 0);
else if constexpr (Rows == 2)
return At(0, 0) * At(1, 1) - At(0, 1) * At(1, 0);
else
{
Type det = 0;
for (size_t i = 0; i < Columns; ++i)
{
const Type cofactor = (i % 2 == 0 ? 1 : -1) * At(0, i) * Minor(0, i).Determinant();
det += cofactor;
}
return det;
}
}
[[nodiscard]]
OMATH_API constexpr Mat<Rows - 1, Columns - 1, Type, StoreType> Minor(const size_t row, const size_t column) const
{
Mat<Rows - 1, Columns - 1, Type, StoreType> result;
for (size_t i = 0, m = 0; i < Rows; ++i)
{
if (i == row)
continue;
for (size_t j = 0, n = 0; j < Columns; ++j)
{
if (j == column)
continue;
result.At(m, n) = At(i, j);
++n;
}
++m;
}
return result;
}
[[nodiscard]]
OMATH_API constexpr const std::array<Type, Rows * Columns>& RawArray() const
{
return m_data;
}
[[nodiscard]]
OMATH_API constexpr std::array<Type, Rows * Columns>& RawArray()
{
return const_cast<std::array<Type, Rows * Columns>>(std::as_const(*this).RawArray());
}
[[nodiscard]]
OMATH_API std::string ToString() const noexcept
{
std::ostringstream oss;
for (size_t i = 0; i < Rows; ++i)
{
for (size_t j = 0; j < Columns; ++j)
{
oss << At(i, j);
if (j != Columns - 1)
oss << ' ';
}
oss << '\n';
}
return oss.str();
}
[[nodiscard]]
OMATH_API bool operator==(const Mat& mat) const
{
return m_data == mat.m_data;
}
[[nodiscard]]
OMATH_API bool operator!=(const Mat& mat) const
{
return !operator==(mat);
}
// Static methods that return fixed-size matrices
[[nodiscard]]
OMATH_API constexpr static Mat<4, 4> ToScreenMat(const Type& screenWidth, const Type& screenHeight) noexcept
{
return {
{screenWidth / 2, 0, 0, 0},
{0, -screenHeight / 2, 0, 0},
{0, 0, 1, 0},
{screenWidth / 2, screenHeight / 2, 0, 1},
};
}
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& 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& vector) noexcept
{
return {{vector.x}, {vector.y}, {vector.z}, {1}};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
OMATH_API constexpr Mat<4, 4, Type, St> MatTranslation(const Vector3& diff) noexcept
{
return
{
{1, 0, 0, diff.x},
{0, 1, 0, diff.y},
{0, 0, 1, diff.z},
{0, 0, 0, 1},
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
OMATH_API Mat<4, 4, Type, St> MatRotationAxisX(const Angle& angle) noexcept
{
return
{
{1, 0, 0, 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]]
OMATH_API Mat<4, 4, Type, St> MatRotationAxisY(const Angle& angle) noexcept
{
return
{
{angle.Cos(), 0, angle.Sin(), 0},
{0 , 1, 0, 0},
{-angle.Sin(), 0, angle.Cos(), 0},
{0 , 0, 0, 1}
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
OMATH_API Mat<4, 4, Type, St> MatRotationAxisZ(const Angle& angle) noexcept
{
return
{
{angle.Cos(), -angle.Sin(), 0, 0},
{angle.Sin(), angle.Cos(), 0, 0},
{ 0, 0, 1, 0},
{ 0, 0, 0, 1},
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
static Mat<4, 4, Type, St> MatCameraView(const Vector3& forward, const Vector3& right, const Vector3& up,
const Vector3& cameraOrigin) noexcept
{
return Mat<4, 4, Type, St>
{
{right.x, right.y, right.z, 0},
{up.x, up.y, up.z, 0},
{forward.x, forward.y, forward.z, 0},
{0, 0, 0, 1},
} * MatTranslation<Type, St>(-cameraOrigin);
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class ViewAngles>
[[nodiscard]]
OMATH_API Mat<4, 4, Type, St> MatRotation(const ViewAngles& angles) noexcept
{
return MatRotationAxisZ(angles.yaw) * MatRotationAxisY(angles.pitch) * MatRotationAxisX(angles.roll);
}
} // namespace omath

105
include/omath/Matrix.hpp
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@@ -1,105 +0,0 @@
#pragma once
#include <initializer_list>
#include <memory>
#include <string>
#include "omath/omath_export.hpp"
namespace omath
{
class Vector3;
class Matrix final
{
public:
OMATH_API Matrix();
OMATH_API Matrix(size_t rows, size_t columns);
OMATH_API Matrix(const std::initializer_list<std::initializer_list<float>>& rows);
[[nodiscard]]
OMATH_API static Matrix ToScreenMatrix(float screenWidth, float screenHeight);
[[nodiscard]]
OMATH_API static Matrix TranslationMatrix(const Vector3& diff);
[[nodiscard]]
OMATH_API static Matrix OrientationMatrix(const Vector3& forward, const Vector3& right, const Vector3& up);
[[nodiscard]]
OMATH_API static Matrix ProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
OMATH_API Matrix(const Matrix& other);
OMATH_API Matrix(size_t rows, size_t columns, const float* pRaw);
OMATH_API Matrix(Matrix&& other) noexcept;
[[nodiscard]]
OMATH_API size_t RowCount() const noexcept;
[[nodiscard]]
OMATH_API size_t ColumnsCount() const noexcept;
[[nodiscard]]
OMATH_API std::pair<size_t, size_t> Size() const noexcept;
[[nodiscard]]
OMATH_API float& At(size_t iRow, size_t iCol);
[[nodiscard]]
OMATH_API float Sum();
OMATH_API void SetDataFromRaw(const float* pRawMatrix);
[[nodiscard]]
OMATH_API Matrix Transpose() const;
OMATH_API void Set(float val);
[[nodiscard]]
OMATH_API const float& At(size_t iRow, size_t iCol) const;
OMATH_API Matrix operator*(const Matrix& other) const;
OMATH_API Matrix& operator*=(const Matrix& other);
OMATH_API Matrix operator*(float f) const;
OMATH_API Matrix& operator*=(float f);
OMATH_API Matrix& operator/=(float f);
OMATH_API void Clear();
[[nodiscard]]
OMATH_API Matrix Strip(size_t row, size_t column) const;
[[nodiscard]]
OMATH_API float Minor(size_t i, size_t j) const;
[[nodiscard]]
OMATH_API float AlgComplement(size_t i, size_t j) const;
[[nodiscard]]
OMATH_API float Determinant() const;
[[nodiscard]]
OMATH_API const float* Raw() const;
OMATH_API Matrix& operator=(const Matrix& other);
OMATH_API Matrix& operator=(Matrix&& other) noexcept;
OMATH_API Matrix operator/(float f) const;
[[nodiscard]]
OMATH_API std::string ToString() const;
OMATH_API ~Matrix();
private:
size_t m_rows;
size_t m_columns;
std::unique_ptr<float[]> m_data;
};
} // namespace omath

34
include/omath/Triangle3d.hpp
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@@ -1,34 +0,0 @@
//
// Created by Orange on 11/13/2024.
//
#pragma once
#include "omath/Vector3.hpp"
#include "omath/omath_export.hpp"
namespace omath
{
class OMATH_API Triangle3d final
{
public:
Triangle3d(const Vector3& vertex1, const Vector3& vertex2, const Vector3& vertex3);
Vector3 m_vertex1;
Vector3 m_vertex2;
Vector3 m_vertex3;
[[nodiscard]]
Vector3 CalculateNormal() const;
[[nodiscard]]
float SideALength() const;
[[nodiscard]]
float SideBLength() const;
[[nodiscard]]
Vector3 SideAVector() const;
[[nodiscard]]
Vector3 SideBVector() const;
};
}

202
include/omath/Vector2.hpp
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@@ -1,202 +0,0 @@
//
// Created by Vlad on 02.09.2024.
//
#pragma once
#include <tuple>
#include <cmath>
#include "omath/omath_export.hpp"
namespace omath
{
class OMATH_API Vector2
{
public:
float x = 0.f;
float y = 0.f;
// Constructors
constexpr Vector2() = default;
constexpr Vector2(const float x, const float 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 float fl)
{
x *= fl;
y *= fl;
return *this;
}
constexpr Vector2& operator/=(const float fl)
{
x /= fl;
y /= fl;
return *this;
}
constexpr Vector2& operator+=(const float fl)
{
x += fl;
y += fl;
return *this;
}
constexpr Vector2& operator-=(const float fl)
{
x -= fl;
y -= fl;
return *this;
}
// Basic vector operations
[[nodiscard]] float DistTo(const Vector2& vOther) const
{
return std::sqrt(DistToSqr(vOther));
}
[[nodiscard]] constexpr float DistToSqr(const Vector2& vOther) const
{
return (x - vOther.x) * (x - vOther.x) + (y - vOther.y) * (y - vOther.y);
}
[[nodiscard]] constexpr float Dot(const Vector2& vOther) const
{
return x * vOther.x + y * vOther.y;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr float Length() const
{
return std::hypot(x, y);
}
[[nodiscard]] constexpr Vector2 Normalized() const
{
const float len = Length();
return len > 0.f ? *this / len : *this;
}
#else
[[nodiscard]] float Length() const
{
return std::hypot(x, y);
}
[[nodiscard]] Vector2 Normalized() const
{
const float len = Length();
return len > 0.f ? *this / len : *this;
}
#endif
[[nodiscard]] constexpr float 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;
}
template<class type>
[[nodiscard]] constexpr const type& As() const
{
return *reinterpret_cast<const type*>(this);
}
template<class type>
[[nodiscard]] constexpr type& As()
{
return *reinterpret_cast<type*>(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 float Sum() const
{
return x + y;
}
[[nodiscard]]
constexpr std::tuple<float, float> AsTuple() const
{
return std::make_tuple(x, y);
}
};
}

243
include/omath/Vector3.hpp
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@@ -1,243 +0,0 @@
//
// Created by vlad on 10/28/23.
//
#pragma once
#include <cstdint>
#include <functional>
#include "omath/Vector2.hpp"
#include "omath/omath_export.hpp"
namespace omath
{
class OMATH_API Vector3 : public Vector2
{
public:
float z = 0.f;
constexpr Vector3(const float x, const float y, const float z) : Vector2(x, y), z(z) { }
constexpr Vector3() : Vector2() {};
[[nodiscard]] constexpr bool operator==(const Vector3& src) const
{
return Vector2::operator==(src) && (src.z == z);
}
[[nodiscard]] constexpr bool operator!=(const Vector3& src) const
{
return !(*this == src);
}
constexpr Vector3& operator+=(const Vector3& v)
{
Vector2::operator+=(v);
z += v.z;
return *this;
}
constexpr Vector3& operator-=(const Vector3& v)
{
Vector2::operator-=(v);
z -= v.z;
return *this;
}
constexpr Vector3& operator*=(const float fl)
{
Vector2::operator*=(fl);
z *= fl;
return *this;
}
constexpr Vector3& operator*=(const Vector3& v)
{
Vector2::operator*=(v);
z *= v.z;
return *this;
}
constexpr Vector3& operator/=(const Vector3& v)
{
Vector2::operator/=(v);
z /= v.z;
return *this;
}
constexpr Vector3& operator+=(const float fl)
{
Vector2::operator+=(fl);
z += fl;
return *this;
}
constexpr Vector3& operator/=(const float fl)
{
Vector2::operator/=(fl);
z /= fl;
return *this;
}
constexpr Vector3& operator-=(const float fl)
{
Vector2::operator-=(fl);
z -= fl;
return *this;
}
constexpr Vector3& Abs()
{
Vector2::Abs();
z = z < 0.f ? -z : z;
return *this;
}
[[nodiscard]] constexpr float DistToSqr(const Vector3& vOther) const
{
return (*this - vOther).LengthSqr();
}
[[nodiscard]] constexpr float Dot(const Vector3& vOther) const
{
return Vector2::Dot(vOther) + z * vOther.z;
}
#ifndef _MSC_VER
[[nodiscard]] constexpr float Length() const
{
return std::hypot(x, y, z);
}
[[nodiscard]] constexpr float Length2D() const
{
return Vector2::Length();
}
[[nodiscard]] float DistTo(const Vector3& vOther) const
{
return (*this - vOther).Length();
}
[[nodiscard]] constexpr Vector3 Normalized() const
{
const float length = this->Length();
return length != 0 ? *this / length : *this;
}
#else
[[nodiscard]] float Length() const
{
return std::hypot(x, y, z);
}
[[nodiscard]] Vector3 Normalized() const
{
const float length = this->Length();
return length != 0 ? *this / length : *this;
}
[[nodiscard]] float Length2D() const
{
return Vector2::Length();
}
[[nodiscard]] float DistTo(const Vector3& vOther) const
{
return (*this - vOther).Length();
}
#endif
[[nodiscard]] constexpr float LengthSqr() const
{
return Vector2::LengthSqr() + z * z;
}
[[nodiscard]] constexpr Vector3 operator-() const
{
return {-x, -y, -z};
}
[[nodiscard]] constexpr Vector3 operator+(const Vector3& v) const
{
return {x + v.x, y + v.y, z + v.z};
}
[[nodiscard]] constexpr Vector3 operator-(const Vector3& v) const
{
return {x - v.x, y - v.y, z - v.z};
}
[[nodiscard]] constexpr Vector3 operator*(const float fl) const
{
return {x * fl, y * fl, z * fl};
}
[[nodiscard]] constexpr Vector3 operator*(const Vector3& v) const
{
return {x * v.x, y * v.y, z * v.z};
}
[[nodiscard]] constexpr Vector3 operator/(const float fl) const
{
return {x / fl, y / fl, z / fl};
}
[[nodiscard]] constexpr Vector3 operator/(const Vector3& v) const
{
return {x / v.x, y / v.y, z / v.z};
}
[[nodiscard]] constexpr Vector3 Cross(const Vector3 &v) const
{
return
{
y * v.z - z * v.y,
z * v.x - x * v.z,
x * v.y - y * v.x
};
}
[[nodiscard]] constexpr float Sum() const
{
return Sum2D() + z;
}
[[nodiscard]] constexpr float Sum2D() const
{
return Vector2::Sum();
}
[[nodiscard]] Vector3 ViewAngleTo(const Vector3& other) const;
[[nodiscard]] std::tuple<float, float, float> AsTuple() const
{
return std::make_tuple(x, y, z);
}
};
}
// ReSharper disable once CppRedundantNamespaceDefinition
namespace std
{
template<>
struct hash<omath::Vector3>
{
std::size_t operator()(const omath::Vector3& 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;
}
};
}

155
include/omath/Vector4.hpp
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@@ -1,155 +0,0 @@
//
// Vector4.h
//
#pragma once
#include <omath/Vector3.hpp>
#include <algorithm>
#include "omath/omath_export.hpp"
namespace omath
{
class OMATH_API Vector4 : public Vector3
{
public:
float w;
constexpr Vector4(const float x, const float y, const float z, const float w) : Vector3(x, y, z), w(w) {}
constexpr Vector4() : Vector3(), w(0.f) {};
[[nodiscard]]
constexpr bool operator==(const Vector4& src) const
{
return Vector3::operator==(src) && w == src.w;
}
[[nodiscard]]
constexpr bool operator!=(const Vector4& src) const
{
return !(*this == src);
}
constexpr Vector4& operator+=(const Vector4& v)
{
Vector3::operator+=(v);
w += v.w;
return *this;
}
constexpr Vector4& operator-=(const Vector4& v)
{
Vector3::operator-=(v);
w -= v.w;
return *this;
}
constexpr Vector4& operator*=(const float scalar)
{
Vector3::operator*=(scalar);
w *= scalar;
return *this;
}
constexpr Vector4& operator*=(const Vector4& v)
{
Vector3::operator*=(v);
w *= v.w;
return *this;
}
constexpr Vector4& operator/=(const float scalar)
{
Vector3::operator/=(scalar);
w /= scalar;
return *this;
}
constexpr Vector4& operator/=(const Vector4& v)
{
Vector3::operator/=(v);
w /= v.w;
return *this;
}
[[nodiscard]] constexpr float LengthSqr() const
{
return Vector3::LengthSqr() + w * w;
}
[[nodiscard]] constexpr float Dot(const Vector4& vOther) const
{
return Vector3::Dot(vOther) + w * vOther.w;
}
[[nodiscard]] float Length() const;
constexpr Vector4& Abs()
{
Vector3::Abs();
w = w < 0.f ? -w : w;
return *this;
}
constexpr Vector4& Clamp(const float min, const float max)
{
x = std::clamp(x, min, max);
y = std::clamp(y, min, max);
z = std::clamp(z, min, max);
return *this;
}
[[nodiscard]]
constexpr Vector4 operator-() const
{
return {-x, -y, -z, -w};
}
[[nodiscard]]
constexpr Vector4 operator+(const Vector4& v) const
{
return {x + v.x, y + v.y, z + v.z, w + v.w};
}
[[nodiscard]]
constexpr Vector4 operator-(const Vector4& v) const
{
return {x - v.x, y - v.y, z - v.z, w - v.w};
}
[[nodiscard]]
constexpr Vector4 operator*(const float scalar) const
{
return {x * scalar, y * scalar, z * scalar, w * scalar};
}
[[nodiscard]]
constexpr Vector4 operator*(const Vector4& v) const
{
return {x * v.x, y * v.y, z * v.z, w * v.w};
}
[[nodiscard]]
constexpr Vector4 operator/(const float scalar) const
{
return {x / scalar, y / scalar, z / scalar, w / scalar};
}
[[nodiscard]]
constexpr Vector4 operator/(const Vector4& v) const
{
return {x / v.x, y / v.y, z / v.z, w / v.w};
}
[[nodiscard]]
constexpr float Sum() const
{
return Vector3::Sum() + w;
}
};
}

88
include/omath/Angle.hpp → include/omath/angle.hpp
View File

@@ -3,10 +3,10 @@
//
#pragma once
#include "omath/Angles.hpp"
#include "omath/angles.hpp"
#include <algorithm>
#include "omath/omath_export.hpp"
#include <utility>
#include <format>
namespace omath
{
@@ -18,13 +18,13 @@ namespace omath
template<class Type = float, Type min = Type(0), Type max = Type(360), AngleFlags flags = AngleFlags::Normalized>
requires std::is_arithmetic_v<Type>
class OMATH_API Angle
class Angle
{
Type m_angle;
constexpr 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);
@@ -34,75 +34,74 @@ namespace omath
std::unreachable();
}
}
public:
[[nodiscard]]
constexpr static Angle FromDegrees(const Type& degrees)
constexpr static Angle from_degrees(const Type& degrees) noexcept
{
return {degrees};
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 {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();
}
[[nodiscard]]
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);
@@ -116,19 +115,18 @@ namespace omath
}
[[nodiscard]]
constexpr std::partial_ordering operator<=>(const Angle& other) const = default;
constexpr std::partial_ordering operator<=>(const Angle& other) const noexcept = default;
[[nodiscard]]
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 {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)};
@@ -140,15 +138,29 @@ 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 {-m_angle};
return Angle{-m_angle};
}
};
}
} // namespace omath
template<class Type, Type min, Type max, omath::AngleFlags flags>
struct std::formatter<omath::Angle<Type, min, max, flags>> // NOLINT(*-dcl58-cpp)
{
[[nodiscard]]
static constexpr auto parse(std::format_parse_context& ctx)
{
return ctx.begin();
}
[[nodiscard]]
static auto format(const omath::Angle<Type, min, max, flags>& deg, std::format_context& ctx)
{
return std::format_to(ctx.out(), "{}deg", deg.as_degrees());
}
};

64
include/omath/angles.hpp Normal file
View File

@@ -0,0 +1,64 @@
//
// Created by vlad on 11/6/23.
//
#pragma once
#include <cmath>
#include <numbers>
namespace omath::angles
{
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type radians_to_degrees(const Type& radians) noexcept
{
return radians * (static_cast<Type>(180) / std::numbers::pi_v<Type>);
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] constexpr Type degrees_to_radians(const Type& degrees) noexcept
{
return degrees * (std::numbers::pi_v<Type> / static_cast<Type>(180));
}
template<class Type>
requires std::is_floating_point_v<Type>
[[nodiscard]] Type horizontal_fov_to_vertical(const Type& horizontal_fov, const Type& aspect) noexcept
{
const auto fov_rad = degrees_to_radians(horizontal_fov);
const auto vert_fov = static_cast<Type>(2) * std::atan(std::tan(fov_rad / static_cast<Type>(2)) / aspect);
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 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 wrapped_angle = std::fmod(angle - min, range);
if (wrapped_angle < 0)
wrapped_angle += range;
return wrapped_angle + min;
}
} // namespace omath::angles

39
include/omath/collision/LineTracer.hpp
View File

@@ -1,39 +0,0 @@
//
// Created by Orange on 11/13/2024.
//
#pragma once
#include "omath/Vector3.hpp"
#include "omath/Triangle3d.hpp"
#include "omath/omath_export.hpp"
namespace omath::collision
{
class OMATH_API Ray
{
public:
Vector3 start;
Vector3 end;
[[nodiscard]]
Vector3 DirectionVector() const;
[[nodiscard]]
Vector3 DirectionVectorNormalized() const;
};
class OMATH_API LineTracer
{
public:
LineTracer() = delete;
[[nodiscard]]
static bool CanTraceLine(const Ray& ray, const Triangle3d& triangle);
// Realization of Möller–Trumbore intersection algorithm
// https://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm
[[nodiscard]]
static Vector3 GetRayHitPoint(const Ray& ray, const Triangle3d& triangle);
};
}

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include/omath/collision/line_tracer.hpp Normal file
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//
// Created by Orange on 11/13/2024.
//
#pragma once
#include "omath/triangle.hpp"
#include "omath/vector3.hpp"
namespace omath::collision
{
class Ray
{
public:
Vector3<float> start;
Vector3<float> end;
bool infinite_length = false;
[[nodiscard]]
Vector3<float> direction_vector() const noexcept;
[[nodiscard]]
Vector3<float> direction_vector_normalized() const noexcept;
};
class LineTracer
{
public:
LineTracer() = delete;
[[nodiscard]]
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> get_ray_hit_point(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept;
};
} // namespace omath::collision

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include/omath/color.hpp Normal file
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//
// Created by vlad on 2/4/24.
//
#pragma once
#include "omath/vector3.hpp"
#include "omath/vector4.hpp"
#include <cstdint>
namespace omath
{
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) noexcept: Vector4(r, g, b, a)
{
clamp(0.f, 1.f);
}
constexpr explicit Color() noexcept = default;
[[nodiscard]]
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 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.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;
default:
return {0.f, 0.f, 0.f, 0.f};
}
return {r, g, b, 1.f};
}
[[nodiscard]]
constexpr static Color from_hsv(const Hsv& hsv) noexcept
{
return from_hsv(hsv.hue, hsv.saturation, hsv.value);
}
[[nodiscard]]
constexpr Hsv to_hsv() const noexcept
{
Hsv hsv_data;
const float& red = x;
const float& green = y;
const float& blue = z;
const float max = std::max({red, green, blue});
const float min = std::min({red, green, blue});
const float delta = max - min;
if (delta == 0.f)
hsv_data.hue = 0.f;
else if (max == red)
hsv_data.hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
else if (max == green)
hsv_data.hue = 60.f * (((blue - red) / delta) + 2.f);
else if (max == blue)
hsv_data.hue = 60.f * (((red - green) / delta) + 4.f);
if (hsv_data.hue < 0.f)
hsv_data.hue += 360.f;
hsv_data.hue /= 360.f;
hsv_data.saturation = max == 0.f ? 0.f : delta / max;
hsv_data.value = max;
return hsv_data;
}
constexpr explicit Color(const Vector4& vec) noexcept: Vector4(vec)
{
clamp(0.f, 1.f);
}
constexpr void set_hue(const float hue) noexcept
{
auto hsv = to_hsv();
hsv.hue = hue;
*this = from_hsv(hsv);
}
constexpr void set_saturation(const float saturation) noexcept
{
auto hsv = to_hsv();
hsv.saturation = saturation;
*this = from_hsv(hsv);
}
constexpr void set_value(const float value) noexcept
{
auto hsv = to_hsv();
hsv.value = value;
*this = from_hsv(hsv);
}
[[nodiscard]]
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()
{
return {1.f, 0.f, 0.f, 1.f};
}
[[nodiscard]] static constexpr Color green()
{
return {0.f, 1.f, 0.f, 1.f};
}
[[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));
}
};

20
include/omath/engines/Source/Camera.hpp
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include "Constants.h"
#include "omath/projection/Camera.hpp"
#include "omath/omath_export.hpp"
namespace omath::source
{
class OMATH_API Camera final : public projection::Camera<Mat4x4, ViewAngles>
{
public:
Camera(const Vector3& 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& target) override;
[[nodiscard]] Mat4x4 GetViewMatrix() const override;
[[nodiscard]] Mat4x4 GetProjectionMatrix() const override;
};
}

24
include/omath/engines/Source/Constants.h
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include <omath/Vector3.hpp>
#include <omath/Mat.hpp>
#include <omath/Angle.hpp>
#include <omath/ViewAngles.hpp>
namespace omath::source
{
constexpr Vector3 kAbsUp = {0, 0, 1};
constexpr Vector3 kAbsRight = {0, -1, 0};
constexpr Vector3 kAbsForward = {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, -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

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include/omath/engines/Source/Formulas.hpp
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include "Constants.h"
namespace omath::source
{
[[nodiscard]]
inline Vector3 ForwardVector(const ViewAngles& angles)
{
const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
}
[[nodiscard]]
inline Vector3 RightVector(const ViewAngles& angles)
{
const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
}
[[nodiscard]]
inline Vector3 UpVector(const ViewAngles& angles)
{
const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
}
[[nodiscard]] inline Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3& cam_origin)
{
return MatCameraView(ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
}
[[nodiscard]]
inline Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
const float far)
{
// NOTE: Needed tp make thing draw normal, since source is wierd
// and use tricky projection matrix formula.
constexpr auto kMultiplyFactor = 0.75f;
const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f) * kMultiplyFactor;
return {
{1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
{0, 1.f / (fovHalfTan), 0, 0},
{0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
{0, 0, 1, 0},
};
}
} // namespace omath::source

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include/omath/engines/iw_engine/camera.hpp Normal file
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//
// Created by Vlad on 3/17/2025.
//
#pragma once
#include "omath/engines/iw_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::iw_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::iw_engine

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include/omath/engines/iw_engine/constants.hpp Normal file
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//
// Created by Vlad on 3/17/2025.
//
#pragma once
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <omath/view_angles.hpp>
namespace omath::iw_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, -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

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include/omath/engines/iw_engine/formulas.hpp Normal file
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//
// Created by Vlad on 3/17/2025.
//
#pragma once
#include "omath/engines/iw_engine/constants.hpp"
namespace omath::iw_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 rotation_matrix(const ViewAngles& angles) noexcept;
[[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
[[nodiscard]]
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::iw_engine

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include/omath/engines/iw_engine/traits/camera_trait.hpp Normal file
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//
// 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

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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

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include/omath/engines/opengl_engine/camera.hpp Normal file
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//
// Created by Orange on 12/23/2024.
//
#pragma once
#include "omath/engines/opengl_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::opengl_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::opengl_engine

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include/omath/engines/opengl_engine/constants.hpp Normal file
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//
// Created by Orange on 12/23/2024.
//
#pragma once
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <omath/view_angles.hpp>
namespace omath::opengl_engine
{
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 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

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include/omath/engines/opengl_engine/formulas.hpp Normal file
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//
// Created by Orange on 12/23/2024.
//
#pragma once
#include "omath/engines/opengl_engine/constants.hpp"
namespace omath::opengl_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::opengl_engine

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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

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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

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include/omath/engines/source_engine/camera.hpp Normal file
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include "omath/engines/source_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::source_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::source_engine

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include/omath/engines/source_engine/constants.hpp Normal file
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <omath/view_angles.hpp>
namespace omath::source_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, -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_engine

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include/omath/engines/source_engine/formulas.hpp Normal file
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//
// Created by Orange on 12/4/2024.
//
#pragma once
#include "omath/engines/source_engine/constants.hpp"
namespace omath::source_engine
{
[[nodiscard]]
Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
[[nodiscard]]
Mat4X4 rotation_matrix(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 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
} // namespace omath::source_engine

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//
// 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

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//
// 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

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//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include "omath/engines/unity_engine/constants.hpp"
#include "omath/projection/camera.hpp"
#include "traits/camera_trait.hpp"
namespace omath::unity_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
} // namespace omath::unity_engine

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//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <omath/view_angles.hpp>
namespace omath::unity_engine
{
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 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::unity_engine

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//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include "omath/engines/unity_engine/constants.hpp"
namespace omath::unity_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::unity_engine

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//
// 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

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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

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//
// 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

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//
// Created by Vlad on 3/22/2025.
//
#pragma once
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.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

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//
// 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

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//
// 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

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//
// 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

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//
// Created by vlad on 9/29/2024.
//
#pragma once
#include "omath/vector3.hpp"
#include <algorithm>
#include <array>
#include <iomanip>
#include <numeric>
#include <sstream>
#include <stdexcept>
#include <utility>
#ifdef near
#undef near
#endif
#ifdef far
#undef far
#endif
namespace omath
{
struct MatSize
{
size_t rows, columns;
};
enum class MatStoreType : uint8_t
{
ROW_MAJOR = 0,
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<size_t Rows = 0, size_t Columns = 0, class Type = float, MatStoreType StoreType = MatStoreType::ROW_MAJOR>
requires std::is_arithmetic_v<Type>
class Mat final
{
public:
constexpr Mat() noexcept
{
clear();
}
[[nodiscard]]
constexpr static MatStoreType get_store_ordering() noexcept
{
return StoreType;
}
constexpr Mat(const std::initializer_list<std::initializer_list<Type>>& rows)
{
if (rows.size() != Rows)
throw std::invalid_argument("Initializer list rows size does not match template parameter Rows");
auto row_it = rows.begin();
for (size_t i = 0; i < Rows; ++i, ++row_it)
{
if (row_it->size() != Columns)
throw std::invalid_argument(
"All rows must have the same number of columns as template parameter Columns");
auto col_it = row_it->begin();
for (size_t j = 0; j < Columns; ++j, ++col_it)
{
at(i, j) = std::move(*col_it);
}
}
}
constexpr explicit Mat(const Type* raw_data)
{
std::copy_n(raw_data, Rows * Columns, m_data.begin());
}
constexpr Mat(const Mat& other) noexcept
{
m_data = other.m_data;
}
[[nodiscard]]
constexpr Type& operator[](const size_t row, const size_t col)
{
return at(row, col);
}
[[nodiscard]]
constexpr Type& operator[](const size_t row, const size_t col) const
{
return at(row, col);
}
constexpr Mat(Mat&& other) noexcept
{
m_data = std::move(other.m_data);
}
[[nodiscard]]
static constexpr size_t row_count() noexcept
{
return Rows;
}
[[nodiscard]]
static constexpr size_t columns_count() noexcept
{
return Columns;
}
[[nodiscard]]
static consteval MatSize size() noexcept
{
return {Rows, Columns};
}
[[nodiscard]]
constexpr const Type& at(const size_t row_index, const size_t column_index) const
{
#if !defined(NDEBUG) && defined(OMATH_SUPRESS_SAFETY_CHECKS)
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[row_index * Columns + column_index];
else if constexpr (StoreType == MatStoreType::COLUMN_MAJOR)
return m_data[row_index + column_index * Rows];
else
{
static_assert(false, "Invalid matrix access convention");
std::unreachable();
}
}
[[nodiscard]] constexpr Type& at(const size_t row_index, const size_t column_index)
{
return const_cast<Type&>(std::as_const(*this).at(row_index, column_index));
}
[[nodiscard]]
constexpr Type sum() const noexcept
{
return std::accumulate(m_data.begin(), m_data.end(), static_cast<Type>(0));
}
constexpr void clear() noexcept
{
set(static_cast<Type>(0));
}
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]]
constexpr Mat<Rows, OtherColumns, Type, StoreType>
operator*(const Mat<Columns, OtherColumns, Type, StoreType>& other) const
{
Mat<Rows, OtherColumns, Type, StoreType> result;
for (size_t i = 0; i < Rows; ++i)
for (size_t j = 0; j < OtherColumns; ++j)
{
Type sum = 0;
for (size_t k = 0; k < Columns; ++k)
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; });
return *this;
}
template<size_t OtherColumns> constexpr Mat<Rows, OtherColumns, Type, StoreType>
operator*=(const Mat<Columns, OtherColumns, Type, StoreType>& other)
{
return *this = *this * other;
}
[[nodiscard]]
constexpr Mat operator*(const Type& value) const noexcept
{
Mat result(*this);
result *= value;
return result;
}
constexpr Mat& operator/=(const Type& value) noexcept
{
std::ranges::for_each(m_data, [&value](auto& val) { val /= value; });
return *this;
}
[[nodiscard]]
constexpr Mat operator/(const Type& value) const noexcept
{
Mat result(*this);
result /= value;
return result;
}
constexpr Mat& operator=(const Mat& other) noexcept
{
if (this != &other)
m_data = other.m_data;
return *this;
}
constexpr Mat& operator=(Mat&& other) noexcept
{
if (this != &other)
m_data = std::move(other.m_data);
return *this;
}
[[nodiscard]]
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);
return transposed;
}
[[nodiscard]]
constexpr Type determinant() const
{
static_assert(Rows == Columns, "Determinant is only defined for square matrices.");
if constexpr (Rows == 1)
return at(0, 0);
if constexpr (Rows == 2)
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) * alg_complement(0, column);
det += cofactor;
}
return det;
}
std::unreachable();
}
[[nodiscard]]
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);
Mat<Rows - 1, Columns - 1, Type, StoreType> result;
for (size_t i = 0, m = 0; i < Rows; ++i)
{
if (i == row)
continue;
for (size_t j = 0, n = 0; j < Columns; ++j)
{
if (j == column)
continue;
result.at(m, n) = at(i, j);
++n;
}
++m;
}
return result;
}
[[nodiscard]]
constexpr Type minor(const size_t row, const size_t column) const
{
return strip(row, column).determinant();
}
[[nodiscard]]
constexpr Type alg_complement(const size_t row, const size_t column) const
{
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>& raw_array() const
{
return m_data;
}
[[nodiscard]]
constexpr std::array<Type, Rows * Columns>& raw_array()
{
return m_data;
}
[[nodiscard]]
std::string to_string() const noexcept
{
std::ostringstream oss;
oss << "[[";
for (size_t i = 0; i < Rows; ++i)
{
if (i > 0)
oss << " [";
for (size_t j = 0; j < Columns; ++j)
{
oss << std::setw(9) << std::fixed << std::setprecision(3) << at(i, j);
if (j != Columns - 1)
oss << ", ";
}
oss << (i == Rows - 1 ? "]]" : "]\n");
}
return oss.str();
}
[[nodiscard]]
bool operator==(const Mat& mat) const
{
return m_data == mat.m_data;
}
[[nodiscard]]
bool operator!=(const Mat& mat) const
{
return !operator==(mat);
}
// Static methods that return fixed-size matrices
[[nodiscard]]
constexpr static Mat<4, 4> to_screen_mat(const Type& screen_width, const Type& screen_height) noexcept
{
return {
{screen_width / 2, 0, 0, 0},
{0, -screen_height / 2, 0, 0},
{0, 0, 1, 0},
{screen_width / 2, screen_height / 2, 0, 1},
};
}
[[nodiscard]]
constexpr std::optional<Mat> inverted() const
{
const auto det = determinant();
if (det == 0)
return std::nullopt;
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_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> 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> 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> mat_translation(const Vector3<Type>& diff) noexcept
{
return
{
{1, 0, 0, diff.x},
{0, 1, 0, diff.y},
{0, 0, 1, diff.z},
{0, 0, 0, 1},
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
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, 0, 0, 1}
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
[[nodiscard]]
Mat<4, 4, Type, St> mat_rotation_axis_y(const Angle& angle) noexcept
{
return
{
{angle.cos(), 0, angle.sin(), 0},
{0 , 1, 0, 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> mat_rotation_axis_z(const Angle& angle) noexcept
{
return
{
{angle.cos(), -angle.sin(), 0, 0},
{angle.sin(), angle.cos(), 0, 0},
{ 0, 0, 1, 0},
{ 0, 0, 0, 1},
};
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
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>
{
{right.x, right.y, right.z, 0},
{up.x, up.y, up.z, 0},
{forward.x, forward.y, forward.z, 0},
{0, 0, 0, 1},
} * mat_translation<Type, St>(-camera_origin);
}
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
[[nodiscard]]
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 fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.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_perspective_right_handed(const float field_of_view, const float aspect_ratio,
const float near, const float far) noexcept
{
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.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}};
}
} // 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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#pragma once
#ifdef OMATH_ENABLE_LEGACY
#include "omath/vector3.hpp"
#include <initializer_list>
#include <memory>
#include <string>
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 to_screen_matrix(float screen_width, float screen_height);
[[nodiscard]]
static Matrix translation_matrix(const Vector3<float>& diff);
[[nodiscard]]
static Matrix orientation_matrix(const Vector3<float>& forward, const Vector3<float>& right,
const Vector3<float>& up);
[[nodiscard]]
static Matrix projection_matrix(float field_of_view, float aspect_ratio, float near, float far);
Matrix(const Matrix& other);
Matrix(size_t rows, size_t columns, const float* raw_data);
Matrix(Matrix&& other) noexcept;
[[nodiscard]]
size_t row_count() const noexcept;
[[nodiscard]]
float& operator[](size_t row, size_t column);
[[nodiscard]]
size_t columns_count() const noexcept;
[[nodiscard]]
std::pair<size_t, size_t> size() const noexcept;
[[nodiscard]]
float& at(size_t row, size_t col);
[[nodiscard]]
float sum();
void set_data_from_raw(const float* raw_matrix);
[[nodiscard]]
Matrix transpose() const;
void set(float val);
[[nodiscard]]
const float& at(size_t row, size_t col) 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 alg_complement(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 to_string() const;
~Matrix();
private:
size_t m_rows;
size_t m_columns;
std::unique_ptr<float[]> m_data;
};
} // namespace omath
#endif

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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/vector2.hpp"
#include "omath/vector3.hpp"
#include "omath/vector4.hpp"
// Matrix classes
#include "omath/mat.hpp"
#include "omath/matrix.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"

24
include/omath/omath_export.hpp
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#pragma once
/* Export prefix for functions */
#ifdef _MSC_VER
/* MSVC */
# define OMATH_API_EXPORT __declspec(dllexport)
#else
/* GCC/Clang */
# define OMATH_API_EXPORT __attribute__((visibility("default")))
#endif
/* Import prefix for functions */
#ifdef _MSC_VER
# define OMATH_API_IMPORT __declspec(dllimport)
#else
# define OMATH_API_IMPORT extern
#endif
/* Resolve import/export */
#ifdef OMATH_EXPORT
# define OMATH_API OMATH_API_EXPORT
#else
# define OMATH_API OMATH_API_IMPORT
#endif

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//
// Created by Vlad on 28.07.2024.
//
#pragma once
#include <vector>
#include "NavigationMesh.hpp"
#include "omath/Vector3.hpp"
#include "omath/omath_export.hpp"
namespace omath::pathfinding
{
class OMATH_API Astar final
{
public:
[[nodiscard]]
static std::vector<Vector3> FindPath(const Vector3& start, const Vector3& end, const NavigationMesh& navMesh);
};
}

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include/omath/pathfinding/NavigationMesh.hpp
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//
// Created by Vlad on 28.07.2024.
//
#pragma once
#include "omath/Vector3.hpp"
#include <expected>
#include <vector>
#include <string>
#include "omath/omath_export.hpp"
namespace omath::pathfinding
{
enum Error
{
};
class NavigationMesh final
{
public:
[[nodiscard]]
OMATH_API std::expected<Vector3, std::string> GetClosestVertex(const Vector3& point) const;
[[nodiscard]]
OMATH_API const std::vector<Vector3>& GetNeighbors(const Vector3& vertex) const;
[[nodiscard]]
OMATH_API bool Empty() const;
[[nodiscard]] std::vector<uint8_t> Serialize() const;
OMATH_API void Deserialize(const std::vector<uint8_t>& raw);
std::unordered_map<Vector3, std::vector<Vector3>> m_verTextMap;
};
}

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//
// Created by Vlad on 28.07.2024.
//
#pragma once
#include "omath/pathfinding/navigation_mesh.hpp"
#include "omath/vector3.hpp"
#include <vector>
namespace omath::pathfinding
{
struct PathNode;
class Astar final
{
public:
[[nodiscard]]
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>>
reconstruct_final_path(const std::unordered_map<Vector3<float>, PathNode>& closed_list,
const Vector3<float>& current) noexcept;
[[nodiscard]]
static auto get_perfect_node(const std::unordered_map<Vector3<float>, PathNode>& open_list,
const Vector3<float>& end_vertex) noexcept;
};
} // namespace omath::pathfinding

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//
// Created by Vlad on 28.07.2024.
//
#pragma once
#include "omath/vector3.hpp"
#include <expected>
#include <string>
#include <vector>
namespace omath::pathfinding
{
enum Error
{
};
class NavigationMesh final
{
public:
[[nodiscard]]
std::expected<Vector3<float>, std::string> get_closest_vertex(const Vector3<float>& point) const noexcept;
[[nodiscard]]
const std::vector<Vector3<float>>& get_neighbors(const Vector3<float>& vertex) const noexcept;
[[nodiscard]]
bool empty() const;
[[nodiscard]] std::vector<uint8_t> serialize() const noexcept;
void deserialize(const std::vector<uint8_t>& raw) noexcept;
std::unordered_map<Vector3<float>, std::vector<Vector3<float>>> m_vertex_map;
};
} // namespace omath::pathfinding

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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#include <optional>
#include "omath/Vector3.hpp"
#include "omath/prediction/Projectile.hpp"
#include "omath/prediction/Target.hpp"
#include "omath/omath_export.hpp"
namespace omath::prediction
{
class OMATH_API Engine final
{
public:
explicit Engine(float gravityConstant, float simulationTimeStep,
float maximumSimulationTime, float distanceTolerance);
[[nodiscard]]
std::optional<Vector3> MaybeCalculateAimPoint(const Projectile& projectile, const Target& target) const;
private:
const float m_gravityConstant;
const float m_simulationTimeStep;
const float m_maximumSimulationTime;
const float m_distanceTolerance;
[[nodiscard]]
std::optional<float> MaybeCalculateProjectileLaunchPitchAngle(const Projectile& projectile,
const Vector3& targetPosition) const;
[[nodiscard]]
bool IsProjectileReachedTarget(const Vector3& targetPosition, const Projectile& projectile, float pitch, float time) const;
};
}

22
include/omath/prediction/Projectile.hpp
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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#include "omath/Vector3.hpp"
#include "omath/omath_export.hpp"
namespace omath::prediction
{
class OMATH_API Projectile final
{
public:
[[nodiscard]]
Vector3 PredictPosition(float pitch, float yaw, float time, float gravity) const;
Vector3 m_origin;
float m_launchSpeed{};
float m_gravityScale{};
};
}

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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#include "omath/Vector3.hpp"
#include "omath/omath_export.hpp"
namespace omath::prediction
{
class OMATH_API Target final
{
public:
[[nodiscard]]
constexpr Vector3 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 m_origin;
Vector3 m_velocity;
bool m_isAirborne{};
};
}

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

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//
// Created by Vlad on 2/23/2025.
//
#pragma once
#include "omath/projectile_prediction/proj_pred_engine.hpp"
namespace omath::projectile_prediction
{
class ProjPredEngineAvx2 final : public ProjPredEngineInterface
{
public:
[[nodiscard]] std::optional<Vector3<float>>
maybe_calculate_aim_point(const Projectile& projectile, const Target& target) const override;
ProjPredEngineAvx2(float gravity_constant, float simulation_time_step, float maximum_simulation_time);
~ProjPredEngineAvx2() override = default;
private:
[[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

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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#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
{
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(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>> 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_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>
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 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

17
include/omath/projectile_prediction/projectile.hpp Normal file
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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#include "omath/vector3.hpp"
namespace omath::projectile_prediction
{
class Projectile final
{
public:
Vector3<float> m_origin;
float m_launch_speed{};
float m_gravity_scale{};
};
} // namespace omath::projectile_prediction

17
include/omath/projectile_prediction/target.hpp Normal file
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//
// Created by Vlad on 6/9/2024.
//
#pragma once
#include "omath/vector3.hpp"
namespace omath::projectile_prediction
{
class Target final
{
public:
Vector3<float> m_origin;
Vector3<float> m_velocity;
bool m_is_airborne{};
};
} // namespace omath::projectile_prediction

89
include/omath/projection/Camera.hpp
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@@ -1,89 +0,0 @@
//
// Created by Vlad on 27.08.2024.
//
#pragma once
#include <expected>
#include <omath/Mat.hpp>
#include <omath/Vector3.hpp>
#include "ErrorCodes.hpp"
#include <omath/Angle.hpp>
#include <type_traits>
#include "omath/omath_export.hpp"
namespace omath::projection
{
class OMATH_API ViewPort final
{
public:
float m_width;
float m_height;
[[nodiscard]] constexpr float AspectRatio() const
{
return m_width / m_height;
}
};
using FieldOfView = const Angle<float, 0.f, 180.f, AngleFlags::Clamped>;
template<class Mat4x4Type, class ViewAnglesType>
class OMATH_API Camera
{
public:
virtual ~Camera() = default;
Camera(const Vector3& 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)
{
}
virtual void LookAt(const Vector3& target) = 0;
[[nodiscard]] virtual Mat4x4Type GetViewMatrix() const = 0;
[[nodiscard]] virtual Mat4x4Type GetProjectionMatrix() const = 0;
[[nodiscard]] Mat4x4Type GetViewProjectionMatrix()
{
return GetProjectionMatrix() * GetViewMatrix();
}
[[nodiscard]] std::expected<Vector3, Error> WorldToScreen(const Mat4x4Type& viewProj, const Vector3& worldPosition) const
{
auto projected = viewProj * MatColumnFromVector<float, Mat4x4Type::GetStoreOrdering()>(worldPosition);
if (projected.At(3, 0) == 0.0f)
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
projected /= projected.At(3, 0);
if (IsNdcOutOfBounds(projected))
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
return Vector3{(projected.At(0,0)+1) / 2 * m_viewPort.m_width , (-projected.At(1,0)+1) / 2 * m_viewPort.m_height, projected.At(2,0)};
}
protected:
ViewPort m_viewPort{};
Angle<float, 0.f, 180.f, AngleFlags::Clamped> m_fieldOfView;
float m_farPlaneDistance;
float m_nearPlaneDistance;
ViewAnglesType m_viewAngles;
Vector3 m_origin;
private:
template<class Type>
[[nodiscard]]
constexpr static bool IsNdcOutOfBounds(const Type& ndc)
{
return std::ranges::any_of( ndc.RawArray(), [](const auto& val) { return val < -1 || val > 1; });
}
};
} // namespace omath::projection

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include/omath/projection/camera.hpp Normal file
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//
// Created by Vlad on 27.08.2024.
//
#pragma once
#include "omath/projection/error_codes.hpp"
#include <expected>
#include <omath/angle.hpp>
#include <omath/mat.hpp>
#include <omath/vector3.hpp>
#include <type_traits>
namespace omath::projection
{
class ViewPort final
{
public:
float m_width;
float m_height;
[[nodiscard]] constexpr float aspect_ratio() const
{
return m_width / m_height;
}
};
using FieldOfView = Angle<float, 0.f, 180.f, AngleFlags::Clamped>;
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
{
public:
~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:
void look_at(const Vector3<float>& target)
{
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& get_view_projection_matrix() const noexcept
{
if (!m_view_projection_matrix.has_value())
m_view_projection_matrix = calc_view_projection_matrix();
return m_view_projection_matrix.value();
}
void set_field_of_view(const FieldOfView& fov) noexcept
{
m_field_of_view = fov;
m_view_projection_matrix = std::nullopt;
}
void set_near_plane(const float near) noexcept
{
m_near_plane_distance = near;
m_view_projection_matrix = std::nullopt;
}
void set_far_plane(const float far) noexcept
{
m_far_plane_distance = far;
m_view_projection_matrix = std::nullopt;
}
void set_view_angles(const ViewAnglesType& view_angles) noexcept
{
m_view_angles = view_angles;
m_view_projection_matrix = std::nullopt;
}
void set_origin(const Vector3<float>& origin) noexcept
{
m_origin = origin;
m_view_projection_matrix = std::nullopt;
}
void set_view_port(const ViewPort& view_port) noexcept
{
m_view_port = view_port;
m_view_projection_matrix = std::nullopt;
}
[[nodiscard]] const FieldOfView& get_field_of_view() const noexcept
{
return m_field_of_view;
}
[[nodiscard]] const float& get_near_plane() const noexcept
{
return m_near_plane_distance;
}
[[nodiscard]] const float& get_far_plane() const noexcept
{
return m_far_plane_distance;
}
[[nodiscard]] const ViewAnglesType& get_view_angles() const noexcept
{
return m_view_angles;
}
[[nodiscard]] const Vector3<float>& get_origin() const noexcept
{
return m_origin;
}
[[nodiscard]] std::expected<Vector3<float>, Error>
world_to_screen(const Vector3<float>& world_position) const noexcept
{
auto normalized_cords = world_to_view_port(world_position);
if (!normalized_cords.has_value())
return std::unexpected{normalized_cords.error()};
return ndc_to_screen_position(*normalized_cords);
}
[[nodiscard]] std::expected<Vector3<float>, Error>
world_to_view_port(const Vector3<float>& world_position) const noexcept
{
auto projected = get_view_projection_matrix()
* mat_column_from_vector<float, Mat4X4Type::get_store_ordering()>(world_position);
if (projected.at(3, 0) == 0.0f)
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
projected /= projected.at(3, 0);
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)};
}
protected:
ViewPort m_view_port{};
Angle<float, 0.f, 180.f, AngleFlags::Clamped> m_field_of_view;
mutable std::optional<Mat4X4Type> m_view_projection_matrix;
float m_far_plane_distance;
float m_near_plane_distance;
ViewAnglesType m_view_angles;
Vector3<float> m_origin;
private:
template<class Type>
[[nodiscard]] constexpr static bool is_ndc_out_of_bounds(const Type& ndc) noexcept
{
return std::ranges::any_of(ndc.raw_array(), [](const auto& val) { return val < -1 || val > 1; });
}
[[nodiscard]] Vector3<float> ndc_to_screen_position(const Vector3<float>& ndc) const noexcept
{
/*
^
| 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};
}
};
} // namespace omath::projection

1
include/omath/projection/ErrorCodes.hpp → include/omath/projection/error_codes.hpp
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@@ -5,7 +5,6 @@
#pragma once
#include <cstdint>
namespace omath::projection
{
enum class Error : uint16_t

85
include/omath/triangle.hpp Normal file
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//
// Created by Orange on 11/13/2024.
//
#pragma once
#include "omath/vector3.hpp"
namespace omath
{
/*
v1
|\
| \
a | \ hypot
| \
v2 ----- v3
b
*/
template<class Vector>
class Triangle final
{
public:
constexpr Triangle() = default;
constexpr Triangle(const Vector& vertex1, const Vector& vertex2, const Vector& vertex3)
: m_vertex1(vertex1), m_vertex2(vertex2), m_vertex3(vertex3)
{
}
Vector3<float> m_vertex1;
Vector3<float> m_vertex2;
Vector3<float> m_vertex3;
[[nodiscard]]
constexpr Vector3<float> calculate_normal() const
{
const auto b = side_b_vector();
const auto a = side_a_vector();
return b.cross(a).normalized();
}
[[nodiscard]]
float side_a_length() const
{
return m_vertex1.distance_to(m_vertex2);
}
[[nodiscard]]
float side_b_length() const
{
return m_vertex3.distance_to(m_vertex2);
}
[[nodiscard]]
constexpr Vector3<float> side_a_vector() const
{
return m_vertex1 - m_vertex2;
}
[[nodiscard]]
constexpr float hypot() const
{
return m_vertex1.distance_to(m_vertex3);
}
[[nodiscard]]
constexpr bool is_rectangular() const
{
const auto side_a = side_a_length();
const auto side_b = side_b_length();
const auto hypot_value = hypot();
return std::abs(side_a * side_a + side_b * side_b - hypot_value * hypot_value) <= 0.0001f;
}
[[nodiscard]]
constexpr Vector3<float> side_b_vector() const
{
return m_vertex3 - m_vertex2;
}
[[nodiscard]]
constexpr Vector3<float> mid_point() const
{
return (m_vertex1 + m_vertex2 + m_vertex3) / 3;
}
};
} // namespace omath

251
include/omath/vector2.hpp Normal file
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//
// Created by Vlad on 02.09.2024.
//
#pragma once
#include "vector3.hpp"
#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);
}
};

311
include/omath/vector3.hpp Normal file
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//
// Created by vlad on 10/28/23.
//
#pragma once
#include "omath/angle.hpp"
#include "omath/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);
}
};

218
include/omath/vector4.hpp Normal file
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@@ -0,0 +1,218 @@
//
// Vector4.h
//
#pragma once
#include <algorithm>
#include <omath/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);
}
};

6
include/omath/ViewAngles.hpp → include/omath/view_angles.hpp
View File

@@ -3,15 +3,13 @@
//
#pragma once
#include "omath/omath_export.hpp"
namespace omath
{
template<class PitchType, class YawType, class RollType>
struct OMATH_API ViewAngles
struct ViewAngles
{
PitchType pitch;
YawType yaw;
RollType roll;
};
}
} // namespace omath

54
source/3d_primitives/box.cpp Normal file
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@@ -0,0 +1,54 @@
//
// Created by Vlad on 4/18/2025.
//
#include "omath/3d_primitives/box.hpp"
namespace omath::primitives
{
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.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 + (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;
// bottom face (+Y up ⇒ wind CW when viewed from above)
poly[0] = {p[0], p[2], p[3]};
poly[1] = {p[0], p[3], p[1]};
// top face
poly[2] = {p[4], p[7], p[6]};
poly[3] = {p[4], p[5], p[7]};
// front face
poly[4] = {p[0], p[5], p[1]};
poly[5] = {p[0], p[4], p[5]};
// right face
poly[6] = {p[0], p[6], p[2]};
poly[7] = {p[0], p[4], p[6]};
// back face
poly[8] = {p[2], p[7], p[3]};
poly[9] = {p[2], p[6], p[7]};
// left face
poly[10] = {p[1], p[7], p[5]};
poly[11] = {p[1], p[3], p[7]};
return poly;
}
} // namespace omath::primitives

14
source/CMakeLists.txt
View File

@@ -1,14 +0,0 @@
target_sources(omath PRIVATE
Vector3.cpp
Matrix.cpp
color.cpp
Vector4.cpp
Vector2.cpp
Triangle3d.cpp
)
add_subdirectory(prediction)
add_subdirectory(pathfinding)
add_subdirectory(projection)
add_subdirectory(collision)
add_subdirectory(engines)

36
source/Triangle3d.cpp
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@@ -1,36 +0,0 @@
#include "omath/Triangle3d.hpp"
namespace omath
{
Triangle3d::Triangle3d(const Vector3 &vertex1, const Vector3 &vertex2, const Vector3 &vertex3)
: m_vertex1(vertex1), m_vertex2(vertex2), m_vertex3(vertex3)
{
}
Vector3 Triangle3d::CalculateNormal() const
{
return (m_vertex1 - m_vertex2).Cross(m_vertex3 - m_vertex1).Normalized();
}
float Triangle3d::SideALength() const
{
return m_vertex1.DistTo(m_vertex2);
}
float Triangle3d::SideBLength() const
{
return m_vertex3.DistTo(m_vertex2);
}
Vector3 Triangle3d::SideAVector() const
{
return m_vertex1 - m_vertex2;
}
Vector3 Triangle3d::SideBVector() const
{
return m_vertex3 - m_vertex2;
}
}

11
source/Vector2.cpp
View File

@@ -1,11 +0,0 @@
//
// Created by Vlad on 02.09.2024.
//
#include "omath/Vector2.hpp"
#include <cmath>
namespace omath
{
}

23
source/Vector3.cpp
View File

@@ -1,23 +0,0 @@
//
// Created by vlad on 10/28/23.
//
#include <omath/Vector3.hpp>
#include <cmath>
#include <omath/Angles.hpp>
namespace omath
{
Vector3 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.f
};
}
}

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