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-rw-r--r--src/collision.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/collision.h b/src/collision.h
index 022cf78..58cd95e 100644
--- a/src/collision.h
+++ b/src/collision.h
@@ -22,6 +22,10 @@
#include <SDL.h>
-int db_pt_in_rect(int x, int y, SDL_Rect *rect);
+int db_pt_in_rect(int x, int y, SDL_Rect *rect) __attribute__((__pure__));
+int db_col_cir_cir(int x1, int y1, int r1, int x2, int y2, int r2)
+ __attribute__((__const__));
+int db_col_pt_cir_cir(int x1, int y1, int r1, int x2, int y2, int r2,
+ int *col_x, int *col_y);
#endif /* DB_COLLISION_H_ */