Have 2D pill collisions working pretty well now

1 files changed, 7 insertions, 0 deletions

diff --git a/frontend/shared_cpp/mathlib.h b/frontend/shared_cpp/mathlib.h
index 383c880..b9f3fee 100644
--- a/frontend/shared_cpp/mathlib.h
+++ b/frontend/shared_cpp/mathlib.h
@@ -57,6 +57,13 @@ struct Vector2 {
         return { -y, x };
     }
 
+    Vector2 rotate(float angle) {
+        return {
+            x * cosf(angle) - y * sinf(angle),
+            x * sinf(angle) + y * cosf(angle)
+        };
+    }
+
     void printDebug(const char* name) {
         printf("%s=Vector2(%f, %f)\n", name, x, y);
     }