使用EventHandler在CocosCreator面板上拉取node函式

紅框圈起來的就是本次文章重點！
這次的範例是Animation自動播放，然後取得clip時間來呼叫結束函式。
當然也可以進入動畫編輯器，插入事件來呼叫結束函式。

const {ccclass, property} = cc._decorator;

@ccclass
export default class AnimationAutoPlay extends cc.Component {

    @property(cc.Animation)
    private animation : cc.Animation = null;

    @property()
    private animationName: string = "";

    @property(cc.Component.EventHandler)
    private completeEvent: cc.Component.EventHandler = null;

    ///物件被打開時
    public onEnable(){
        this.PlayAnim();
    }
    protected onDisable(): void {
        this.PlayAnim();
    }

    private PlayAnim(){
        if(this.animationName.length == 0)
            this.animationName = this.animation.defaultClip.name;
        this.animation.play(this.animationName, 0);
		this.scheduleOnce(this.OnAnimPlayComplete, this.animation.currentClip.duration);
    }

    public OnAnimPlayComplete(){
        if (this.completeEvent){
            cc.Component.EventHandler.emitEvents([this.completeEvent]);
        }
    }
}