mirror of
https://github.com/Leo501/CocosCreatorTutorial.git
synced 2026-05-08 22:57:36 +08:00
79 lines
1.6 KiB
JavaScript
79 lines
1.6 KiB
JavaScript
cc.Class({
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extends: cc.Component,
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properties: {
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nodePath: cc.Node,
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r: 50,
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speed: 10,
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},
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/**
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* 构造函数,不能在此操作this.node
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* 只能做变量初始化
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*/
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ctor() {
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},
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/**
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* 组件脚本的初始化,可以操作this.node
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*/
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onLoad() {
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this.startX = this.r;
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this.perimeter = 2 * this.r * Math.PI;
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this.speed = -this.speed;
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},
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/**
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* 注册事件
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*/
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registerEvent() {
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},
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/**
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* 使用cc.instantiate()创建实例时
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* 通过getComponent(脚本名称)取得脚本实例
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* 然后使用init(data)来传递参数
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* @param {*} data
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*/
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init(data) {
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},
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/**
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* 通常用于初始化一些中间状态的数据
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*/
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start() {
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},
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/**
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* 每一帧回调
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* @param {*} dt
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*/
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update(dt) {
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this.startX += dt * this.speed;
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console.log(this.y);
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if (parseInt(this.startX) <= -this.r) {//如果到达-this.circle。this.speed改变方向
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this.speed = -this.speed;
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this.startX = -this.r;
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} else if (parseInt(this.startX) >= this.r) {////如果到达this.circle。this.speed改变方向
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this.speed = -this.speed;
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this.startX = this.r;
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}
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console.log('startX=', this.startX);
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this.y = Math.sqrt(Math.pow(this.r, 2) - Math.pow(this.startX, 2));
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if (this.speed < 0) {
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this.y = -this.y;
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}
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this.nodePath.x = this.startX;
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this.nodePath.y = this.y;
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},
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/**
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* 统一回收组件
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*/
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onDestroy() {
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}
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}); |