| 1. | Some things in this category include the camera , model properties , lights , particle system physics , playing sounds , playing music , handling input , changing levels , collision detection and response , and placement of 2d graphics for a heads up display , title screen or whatever
在这个范畴里包括摄象机、模型属性、光照、粒子系统物理、播放声音、播放音乐、处理输入、改变关卡、碰撞检测和响应，及2d图形的放置以实现一些覆盖内容的显示、标题屏幕等等。 |
