remove glm dependency

include/Defines.h

@@ -0,0 +1,52 @@
+#pragma once
+
+namespace td {
+
+template<typename T>
+struct Vec2 {
+    union {
+        T x;
+        T r;
+    };
+
+    union {
+        T y;
+        T g;
+    };
+
+    Vec2(T X = 0, T Y = 0) : x(X), y(Y) {}
+
+    friend bool operator==(const Vec2& vec2, const Vec2& other) { return vec2.x == other.x && vec2.y == other.y; }
+};
+
+template<typename T>
+struct Vec3 {
+    union {
+        T x;
+        T r;
+    };
+
+    union {
+        T y;
+        T g;
+    };
+
+    union {
+        T z;
+        T b;
+    };
+
+    Vec3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}
+};
+
+using Vec2i = Vec2<int>;
+using Vec2u = Vec2<unsigned int>;
+using Vec2f = Vec2<float>;
+using Vec2d = Vec2<double>;
+
+using Vec3i = Vec3<int>;
+using Vec3u = Vec3<unsigned int>;
+using Vec3f = Vec3<float>;
+using Vec3d = Vec3<double>;
+    
+} // namespace td