CocosCreator 事件监听

自定义监听事件。使用TypeScript

1 创建事件类 EventMgr.ts

const {ccclass, property} = cc._decorator;

@ccclass
export default class EventMgr extends cc.Component  {

    private dic= {};

    protected static instance:EventMgr;
    public static getInstance():EventMgr
    {
        if(!this.instance)
        {
            this.instance = new EventMgr();
        } 
        return this.instance;
    }

    registerListener(typeName:string, cc:cc.Component, action:Function)
    {
        this.clearSingleRegister(typeName);
        if(!this.dic[typeName])
        {
            this.dic[typeName] = [];
        }
        this.dic[typeName].push({cc:cc, action:action});
    }

    unRegisterListener(typeName:string, cc:cc.Component)
    {
        this.clearSingleRegister(typeName);
        if(!this.dic[typeName]) return;
        this.dic[typeName].splice(this.dic[typeName].indexOf(cc),1);
    }

    clearSingleRegister(typeName:string)
    {
        if(this.dic[typeName])
        {
            for(let i = this.dic[typeName].length - 1; i>=0; i--)
            {
                if(!this.dic[typeName][i].cc.node)
                {
                    this.dic[typeName].splice(i,1);
                }
            }
        }    
    }

    sendListener(typeName:string, obj:any)
    {
        this.clearSingleRegister(typeName);
        if(this.dic[typeName])
        {
            for(let i=0; i

2  添加注册

import EventMgr from "./EventMgr";

const {ccclass, property} = cc._decorator;

@ccclass
export default class Test01 extends cc.Component {


    // LIFE-CYCLE CALLBACKS:

    onLoad () {

        EventMgr.getInstance().registerListener("kkk", this, this.hello)
    }

    start () {
    }

    // update (dt) {}

    hello(self, params)
    {
        console.log(self.node.name, params.nihao);
    }
}

3 调用

import EventMgr from "./EventMgr";

const {ccclass, property} = cc._decorator;

@ccclass
export default class Test02 extends cc.Component {


    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        cc.systemEvent.on(cc.SystemEvent.EventType.KEY_DOWN, this.onKeyDown, this);

    }

    onKeyDown(event)
    {
        switch(event.keyCode) {
            case cc.macro.KEY.a:
                EventMgr.getInstance().sendListener("kkk", {"nihao":159});
            break;
        }
    }

    start () {
    }

    // update (dt) {}
}

4  当按下A键的时候，就会执行Test01脚本中的Hello()方法