#include "types.h"

#include "math.h"

struct Vec2 vec2_normalize(struct Vec2 v) {
  float abs = sqrt(v.x * v.x + v.y * v.y);
  return (struct Vec2){v.x / abs, v.y / abs};
}
struct Vec2 vec2_rotate(struct Vec2 v, float alpha) {
  return (struct Vec2){v.x * cosf(alpha) - v.y * sinf(alpha),
                       v.x * sinf(alpha) + v.y * cosf(alpha)};
}