-bool rectcollision(base_type* one, base_type* two);
-bool rectcollision_offset(base_type* one, base_type* two, float off_x, float off_y);
-
-void collision_swept_object_map(base_type* old, base_type* current);
-bool collision_object_map(base_type* object);
-
-/** Return a pointer to the tile at the given x/y coordinates */
-Tile* gettile(float x, float y);
-
-// Some little helper function to check for tile properties
-bool issolid(float x, float y);
-bool isbrick(float x, float y);
-bool isice(float x, float y);
-bool isfullbox(float x, float y);
-
-#endif /*SUPERTUX_COLLISION_H*/