The `Matter.Runner` module is an optional utility which provides a game loop, that handles continuously updating a `Matter.Engine` for you within a browser. It is intended for development and debugging purposes, but may also be suitable for simple games. If you are using your own game loop instead, then you do not need the `Matter.Runner` module. Instead just call `Engine.update(engine, delta)` in your own loop. 参见随附的用法[示例](https://github.com/liabru/matter-js/tree/master/examples).