* 增加长度

* Skips a token. * @param {string} expected Expected token * @param {boolean} [optional=false] Whether the token is optional * @returns

* Obtains the next token. * @returns {?string} Next token or `null` on eof * @inner

* 将对象回收到对象池 * 方便后续继续使用

* 开始游戏

* canvas重绘函数 * 每一帧重新绘制所有的需要展示的元素

* 画控制区域圆形

* Creates a source function for a string. * @param {string} s String to read from * @returns {function():number|null} Source function return

* Gets the character at `pos` within the source. * @param {number} pos Position * @returns {string} Character * @inner

* 根据传入的对象标识符，查询对象池 * 对象池为空创建新的类，否则从对象池中取

* 根据对象标识符 * 获取对应的对象池

* 玩家响应手指的触摸事件 * 改变战机的位置

* Peeks for the next token. * @returns {?string} Token or `null` on eof * @inner

* Provides common type definitions. * Can also be used to provide additional google types or your own custom types. * @param {string} name Short nam

* Pushes a token back to the stack. * @param {string} token Token * @returns {undefined} * @inner

* Creates a destination function for a string. * @returns {function(number=):undefined|string} Destination function successively called with the

* 开始绘制

* Fetches the contents of a file. * @memberof util * @param {string} filename File path or url * @param {FetchOptions} options Fetch options * @pa

* Generates a partial message type encoder. * @param {Codegen} gen Codegen instance * @param {Field} field Reflected field * @param {number} fieldI

* Generates a partial value fromObject conveter. * @param {Codegen} gen Codegen instance * @param {Field} field Reflected field * @param {number} f

* Generates a partial value toObject converter. * @param {Codegen} gen Codegen instance * @param {Field} field Reflected field * @param {number} fi

* Generates a partial value verifier. * @param {Codegen} gen Codegen instance * @param {Field} field Reflected field * @param {number} fieldIndex F