// Learn TypeScript:
//  - https://docs.cocos.com/creator/manual/en/scripting/typescript.html
// Learn Attribute:
//  - https://docs.cocos.com/creator/manual/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - https://docs.cocos.com/creator/manual/en/scripting/life-cycle-callbacks.html

const {ccclass, property} = cc._decorator;

@ccclass
export default class ScaleScripts extends cc.Component {

    @property(cc.Float)
    scaleStart: number = 1;

    @property(cc.Float)
    scaleEnd: number = 1;

    @property(cc.Float)
    time: number = 0.2;
    tw = null;
    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        this.startTween();
    }

    startTween () {
        if (null == this.tw){
            this.tw = cc.tween(this.node)
            .repeatForever(
                cc.tween()
                .to(this.time, { scale: this.scaleEnd})
                .to(this.time*1.5, { scale: this.scaleStart })
            )
            .start()
        }
    }
    stop(){
        if (this.tw !=null){
            this.tw.stop();
            this.node.scale = this.scaleStart;
            this.tw = null;
        }
    }
    // update (dt) {}
}