import SScript from "./SScript";

/** 该脚本挂载于Laya.Image组件之上可以使我们在编辑器中就可以设置好一个Image的各种状态下的外观图片，不必再在代码中进行设置 */
export default class MultySkinImg extends SScript{
    /** @prop {name:skin1, tips:"皮肤1", type:string, accept:res} */
    skin1:string;
    /** @prop {name:skin2, tips:"皮肤2", type:string, accept:res} */
    skin2:string;
    /** @prop {name:skin3, tips:"皮肤3", type:string, accept:res} */
    skin3:string;
    /** @prop {name:skin4, tips:"皮肤4", type:string, accept:res} */
    skin4:string;

    /** 宿主Image */
    img:Laya.Image;

    private _originalSkin:string;

    onAwake(){
        this.img = this.owner as Laya.Image;
        this._originalSkin = this.img.skin;
    }

    /**
     * 更换皮肤
     * @param skinIndex 皮肤索引号，参数不传或者传不存在的一个索引则恢复为原始皮肤
     */
    changeSkin(skinIndex?:number){
        if(this.img)
        {
            let s = this['skin' + skinIndex];
            if(!s)
            {
                this.img.skin = this._originalSkin;
            }
            else
            {
                this.img.skin = s;
            }
        }
    }
}