import { EVENT_TYPE } from "./gameEnum";

/**事件管理类 */
class GameEventManager {
    /**单例 */
    private static _instance: GameEventManager = null;
    /**获取事件管理器单例 */
    static get instance(): GameEventManager {
        if (this._instance == null) {
            this._instance = new GameEventManager();
        }
        return this._instance;
    }
    /**事件类实例 */
    private e: cc.EventTarget = null;
    constructor() {
        this.e = new cc.EventTarget();
    }
    /**
     * 注册事件
     * @param type 事件类型
     * @param callback 事件回调
     * @param target 绑定对象
     * @param useCapture 拦截事件
     */
    on<T extends Function>(type: EVENT_TYPE, callback: T, target?: any, useCapture?: boolean): T {
        return this.e.on(type, callback, target, useCapture);
    }
    /**
     * 注销事件
     * @param type 事件类型
     * @param callback 事件回调
     * @param target 绑定对象
     */
    off(type: EVENT_TYPE, callback: Function, target?: any) {
        this.e.off(type, callback, target);
    }
    /**
     * 发送事件
     * @param key 事件类型
     * @param arg1 参数1
     * @param arg2 参数2
     * @param arg3 参数3
     * @param arg4 参数4
     * @param arg5 参数5
     */
    emit(key: EVENT_TYPE, arg1?: any, arg2?: any, arg3?: any, arg4?: any, arg5?: any) {
        this.e.emit(key, arg1, arg2, arg3, arg4, arg5);
    }
}
export default GameEventManager.instance;