Add killing enemies.

1 files changed, 13 insertions, 0 deletions

diff --git a/rect.h b/rect.h
index 6f45705..bf494b2 100644
--- a/rect.h
+++ b/rect.h
@@ -7,4 +7,17 @@ typedef struct {
 
 Rectangle make_rect(int x, int y, int w, int h);
 
+int rects_overlap(const Rectangle* a, const Rectangle* b);
+
+int rects_overlap2(
+	int x0,
+	int y0,
+	int w0,
+	int h0,
+	int x1,
+	int y1,
+	int w1,
+	int h1
+);
+
 #endif