feat: Build optimizations

src/dxd_math.hpp

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <float.h>
+#include <math.h>
+
+
+
+typedef struct vec2 { float x, y; } vec2;
+typedef struct vec2i { int x, y; } vec2i;
+
+static const vec2 vec2_zero = { 0, 0 };
+static const vec2 vec2_one = { 1, 1 };
+static const vec2 vec2_unitx = { 1, 0 };
+static const vec2 vec2_unity = { 0, 1 };
+static const vec2 vec2_max = { FLT_MAX, FLT_MAX };
+static const vec2 vec2_min = { -FLT_MAX, -FLT_MAX };
+static const vec2i vec2i_zero = { 0, 0 };
+static const vec2i vec2i_one = { 1, 1 };
+
+vec2 operator+(vec2 const &v);
+vec2 operator-(vec2 const &v);
+vec2 operator+(vec2 const &a, vec2 const &b);
+vec2 operator-(vec2 const &a, vec2 const &b);
+vec2 operator*(vec2 const &a, float const &b);
+vec2 operator/(vec2 const &a, float const &b);
+bool operator<(vec2 const &a, vec2 const &b);
+bool operator>(vec2 const &a, vec2 const &b);
+
+float dot(vec2 const &a, vec2 const &b);
+float norm2(vec2 const &v);
+float norm(vec2 const &v);
+vec2 normalize(vec2 const &v);
+vec2 min2(vec2 const &a, vec2 const &b);
+vec2 max2(vec2 const &a, vec2 const &b);
+
+vec2 polar_to_vec2(const float angle, const float len);
+float vec2_angle(const vec2 v);
+
+float normalize_angle(const float angle);
+float normalize_angle_diff(const float diff);