migrated to sol2

decomposed method

added vector2, vector4

refactored tests

added opengl engine to lua

added other engines

added source tests

removed tons of lua files

tests/general/unit_test_lua_vector3.cpp

@@ -0,0 +1,69 @@
+//
+// Created by orange on 07.03.2026.
+//
+#include <gtest/gtest.h>
+#include <lua.hpp>
+#include <omath/lua/lua.hpp>
+
+class LuaVec3 : public ::testing::Test
+{
+protected:
+    lua_State* L = nullptr;
+
+    void SetUp() override
+    {
+        L = luaL_newstate();
+        luaL_openlibs(L);
+        omath::lua::register_lib(L);
+        if (luaL_dofile(L, LUA_SCRIPTS_DIR "/vec3_tests.lua") != LUA_OK)
+            FAIL() << lua_tostring(L, -1);
+    }
+
+    void TearDown() override { lua_close(L); }
+
+    void check(const char* func_name)
+    {
+        lua_getglobal(L, func_name);
+        if (lua_pcall(L, 0, 0, 0) != LUA_OK)
+        {
+            FAIL() << lua_tostring(L, -1);
+            lua_pop(L, 1);
+        }
+    }
+};
+
+TEST_F(LuaVec3, Constructor_default)            { check("Vec3_Constructor_default"); }
+TEST_F(LuaVec3, Constructor_xyz)                { check("Vec3_Constructor_xyz"); }
+TEST_F(LuaVec3, Field_mutation)                 { check("Vec3_Field_mutation"); }
+TEST_F(LuaVec3, Addition)                       { check("Vec3_Addition"); }
+TEST_F(LuaVec3, Subtraction)                    { check("Vec3_Subtraction"); }
+TEST_F(LuaVec3, UnaryMinus)                     { check("Vec3_UnaryMinus"); }
+TEST_F(LuaVec3, Multiplication_scalar)          { check("Vec3_Multiplication_scalar"); }
+TEST_F(LuaVec3, Multiplication_scalar_reversed) { check("Vec3_Multiplication_scalar_reversed"); }
+TEST_F(LuaVec3, Multiplication_vec)             { check("Vec3_Multiplication_vec"); }
+TEST_F(LuaVec3, Division_scalar)                { check("Vec3_Division_scalar"); }
+TEST_F(LuaVec3, Division_vec)                   { check("Vec3_Division_vec"); }
+TEST_F(LuaVec3, EqualTo_true)                   { check("Vec3_EqualTo_true"); }
+TEST_F(LuaVec3, EqualTo_false)                  { check("Vec3_EqualTo_false"); }
+TEST_F(LuaVec3, LessThan)                       { check("Vec3_LessThan"); }
+TEST_F(LuaVec3, LessThanOrEqual)                { check("Vec3_LessThanOrEqual"); }
+TEST_F(LuaVec3, ToString)                       { check("Vec3_ToString"); }
+TEST_F(LuaVec3, Length)                         { check("Vec3_Length"); }
+TEST_F(LuaVec3, Length2d)                       { check("Vec3_Length2d"); }
+TEST_F(LuaVec3, LengthSqr)                      { check("Vec3_LengthSqr"); }
+TEST_F(LuaVec3, Normalized)                     { check("Vec3_Normalized"); }
+TEST_F(LuaVec3, Dot_perpendicular)              { check("Vec3_Dot_perpendicular"); }
+TEST_F(LuaVec3, Dot_parallel)                   { check("Vec3_Dot_parallel"); }
+TEST_F(LuaVec3, Cross)                          { check("Vec3_Cross"); }
+TEST_F(LuaVec3, DistanceTo)                     { check("Vec3_DistanceTo"); }
+TEST_F(LuaVec3, DistanceToSqr)                  { check("Vec3_DistanceToSqr"); }
+TEST_F(LuaVec3, Sum)                            { check("Vec3_Sum"); }
+TEST_F(LuaVec3, Sum2d)                          { check("Vec3_Sum2d"); }
+TEST_F(LuaVec3, Abs)                            { check("Vec3_Abs"); }
+TEST_F(LuaVec3, PointToSameDirection_true)      { check("Vec3_PointToSameDirection_true"); }
+TEST_F(LuaVec3, PointToSameDirection_false)     { check("Vec3_PointToSameDirection_false"); }
+TEST_F(LuaVec3, IsPerpendicular_true)           { check("Vec3_IsPerpendicular_true"); }
+TEST_F(LuaVec3, IsPerpendicular_false)          { check("Vec3_IsPerpendicular_false"); }
+TEST_F(LuaVec3, AngleBetween_90deg)             { check("Vec3_AngleBetween_90deg"); }
+TEST_F(LuaVec3, AngleBetween_zero_vector_error) { check("Vec3_AngleBetween_zero_vector_error"); }
+TEST_F(LuaVec3, AsTable)                        { check("Vec3_AsTable"); }