void init_type_trap(void)
method_ret common_trap_type_move_on(ob_methods *context, object *trap, object *victim, object *originator)
void register_move_on(int ob_type, move_on_func method)
method_ret common_trap_type_process(ob_methods *context, object *op)
void register_process(int ob_type, process_func method)