collision

1 files changed, 4 insertions, 5 deletions

diff --git a/src/ray.c b/src/ray.c
index 36e89b4..e3d2cb0 100644
--- a/src/ray.c
+++ b/src/ray.c
@@ -11,18 +11,17 @@ float v2_len(v2 a) {
     return sqrt(a.x * a.x + a.y * a.y);
 }
 
+float v2_dist(v2 a, v2 b) {
+    return sqrt(v2_square_dist(a, b));
+}
+
 float v2_square_dist(v2 a, v2 b) {
     return pow(a.x - b.x, 2) + pow(a.y - b.y, 2);
 }
 
-#define PI		3.14159265358979323846
-#define PIH		1.57079632679489661923
-#define PI2		6.28318530718
-
 uint32_t cast_ray(v2 pos, float theta, v2* hit_pos) {
 
     const v2i move = {
-        #define sign(a) ((a) < 0 ? -1 : 1)
         sign(cos(theta)),
         sign(sin(theta)),
     };