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-rw-r--r--src/collision.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/collision.h b/src/collision.h
index 3b7a457..856d5f5 100644
--- a/src/collision.h
+++ b/src/collision.h
@@ -10,6 +10,6 @@ enum _collisions {
COLLISION_LENGTH // no. of checked inputs
};
-#define collision_solid(a) (1 & a >> COLLISION_SOLID)
-#define collision_hazard(a) (1 & a >> COLLISION_HAZARD)
-#define collision_floor(a) (1 & a >> COLLISION_FLOOR)
+#define collision_solid(a) (1 & (a) >> COLLISION_SOLID)
+#define collision_hazard(a) (1 & (a) >> COLLISION_HAZARD)
+#define collision_floor(a) (1 & (a) >> COLLISION_FLOOR)