question: remove the collidable with the given index from the environment . concode_field_sep DrawSurface surface concode_elem_sep Point lowerFrameEdge concode_elem_sep Point upperFrameEdge concode_elem_sep List<Collidable> collidables concode_field_sep DrawSurface getSurface concode_elem_sep void addCollidable concode_elem_sep void setSurface concode_elem_sep Point getUpperFrameEdge concode_elem_sep Collidable getCollidable concode_elem_sep CollisionInfo getClosestCollision concode_elem_sep Point getLowerFrameEdge
target: void function ( Collidable arg0 ) { this . collidables . remove ( arg0 ) ; }