/////////////////////////////////////////////////
// used in effect.c
/////////////////////////////////////////////////
-struct Object **get_collisionobjects(struct Scene *scene, struct Object *self, struct Group *group, int *numcollobj);
+struct Object **get_collisionobjects(struct Scene *scene, struct Object *self, struct Group *group, unsigned int *numcollobj);
typedef struct ColliderCache {
struct ColliderCache *next, *prev;