restructure project

include/td/Defines.h

@@ -0,0 +1,148 @@
+#pragma once
+
+#include <cstdint>
+
+namespace td {
+
+static constexpr float PI = 3.141592653f;
+
+template<typename T>
+struct Vec2 {
+	union {
+		T x;
+		T r;
+	};
+
+	union {
+		T y;
+		T g;
+	};
+
+	constexpr Vec2(T X = 0, T Y = 0) : x(X), y(Y) {}
+};
+
+template<typename T>
+inline bool operator==(const Vec2<T>& vec2, const Vec2<T>& 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;
+	};
+
+	constexpr Vec3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}
+};
+
+template<typename T>
+inline bool operator==(const Vec3<T>& vec3, const Vec3<T>& other) {
+	return vec3.x == other.x && vec3.y == other.y && vec3.z == other.z;
+}
+
+template<typename T>
+struct Vec4 {
+	union {
+		T x;
+		T r;
+	};
+
+	union {
+		T y;
+		T g;
+	};
+
+	union {
+		T z;
+		T b;
+	};
+
+	union {
+		T w;
+		T a;
+	};
+
+	constexpr Vec4(Vec3<T> vec, T W = 1) : x(vec.x), y(vec.y), z(vec.z), w(W) {}
+	constexpr Vec4(T X = 0, T Y = 0, T Z = 0, T W = 0) : x(X), y(Y), z(Z), w(W) {}
+};
+
+template<typename T>
+inline bool operator==(const Vec4<T>& vec4, const Vec4<T>& other) {
+	return vec4.x == other.x && vec4.y == other.y && vec4.z == other.z && vec4.w = other.w;
+}
+
+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>;
+
+using Vec4i = Vec4<int>;
+using Vec4u = Vec4<unsigned int>;
+using Vec4f = Vec4<float>;
+using Vec4d = Vec4<double>;
+
+using Color = Vec3<unsigned char>;
+
+template<typename T>
+struct Mat4 {
+	static const std::size_t MATRIX_SIZE = 4;
+
+	T x0, x1, x2, x3;
+	T y0, y1, y2, y3;
+	T z0, z1, z2, z3;
+	T w0, w1, w2, w3;
+
+	T operator[] (std::size_t offset) const {
+		return reinterpret_cast<const T*>(this)[offset];
+	}
+
+	T& operator[] (std::size_t offset) {
+		return reinterpret_cast<T*>(this)[offset];
+	}
+
+	T* data() {
+		return reinterpret_cast<T*>(this);
+	}
+
+	const T* data() const{
+		return reinterpret_cast<const T*>(this);
+	}
+
+	T at(std::size_t row, std::size_t column) const {
+		return operator[](row * MATRIX_SIZE + column);
+	}
+
+	T& at(std::size_t row, std::size_t column) {
+		return operator[](row * MATRIX_SIZE + column);
+	}
+};
+
+typedef Mat4<float> Mat4f;
+typedef Mat4<int> Mat4i;
+typedef Mat4<double> Mat4d;
+
+template<typename T>
+inline bool operator==(const Mat4<T>& mat, const Mat4<T>& other) {
+	return mat.x0 == other.x0 && mat.y0 == other.y0 && mat.z0 == other.z0 && mat.w0 == other.w0 &&
+		mat.x1 == other.x1 && mat.y1 == other.y1 && mat.z1 == other.z1 && mat.w1 == other.w1 &&
+		mat.x2 == other.x2 && mat.y2 == other.y2 && mat.z2 == other.z2 && mat.w2 == other.w2 &&
+		mat.x3 == other.x3 && mat.y3 == other.y3 && mat.z3 == other.z3 && mat.w3 == other.w3;
+}
+
+} // namespace td