cocos creator~用skewTo实现翻牌效果

   turn(targetSpriteFrame){
        let t = this.turnDuration_;
        this.cardSprite_.node.runAction(
            cc.sequence(
                cc.spawn(
                    cc.scaleTo(t, 0, 1),
                    cc.skewTo(t, 0, 20)
                ),
                cc.callFunc(()=>{
                    this.cardSprite_.spriteFrame = targetSpriteFrame
                    this.cardSprite_.node.skewY = -20;
                }),
                cc.spawn(
                    cc.scaleTo(t, 1, 1),
                    cc.skewTo(t, 0, 0)
                ),
            )
        );
    },