/**
* 開關控件
 * @author BrightLi
 * @since 2020/5/3
 */
const {ccclass, property} = cc._decorator;

@ccclass
export default class SKSwitch extends cc.Component {

    @property(cc.SpriteFrame)
    offFrame:cc.SpriteFrame=null;

    @property(cc.Boolean)
    public isOn:boolean=true;

    public changeBlock:Function;

    private sprite:cc.Sprite=null;
    private currentFrame:cc.SpriteFrame;

    private touchStart(event:cc.Event.EventTouch){
        this.isOn=!this.isOn;
        this.refresh();
    }

    private refresh(){
        if(this.isOn){
            this.sprite.spriteFrame=this.currentFrame;
        }else if(this.offFrame){
            this.sprite.spriteFrame=this.offFrame;
        }
        if(this.changeBlock){
            this.changeBlock(this);
        }
    }

    onLoad () {
        this.sprite=this.node.getComponent(cc.Sprite);
        this.currentFrame=this.sprite.spriteFrame;
        if(!this.isOn){
            this.refresh();
        }
        this.node.on(cc.Node.EventType.TOUCH_START,this.touchStart.bind(this));
    }
}