// Learn cc.Class:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/class.html
//  - [English] http://docs.cocos2d-x.org/creator/manual/en/scripting/class.html
// Learn Attribute:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/reference/attributes.html
//  - [English] http://docs.cocos2d-x.org/creator/manual/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/life-cycle-callbacks.html
//  - [English] https://www.cocos2d-x.org/docs/creator/manual/en/scripting/life-cycle-callbacks.html
var ShaderMaterial = require('ShaderMaterial');
cc.Class({
    extends: cc.Component,

    properties: {
        sp_mask: {
            default: null,
            type: cc.Sprite,
        },
    },

    // LIFE-CYCLE CALLBACKS:

    // onLoad () {},

    initdata () {
        this.sp_mask._updateAssembler()
        this.maxlength = this.sp_mask.node.width
        this.mat = new ShaderMaterial()
        this.mat.applaySpriteOnce(this.sp_mask, "Duquan", {
            // plus: 1.0,
            // distance: 100,
        });
        this.time = 0
    },

    update (dt) {
        this.time = this.time+dt
        if(this.time>1){
            this.time = 0
        }
        var tp = this.node.width/this.maxlength*0.5
         // this.mat.setParamValue('u_width',  0.17721518987341772/tp *0.002+1);
        this.mat.setParamValue('u_bili', tp);
    },
});