mirror of
https://github.com/Leo501/CocosCreatorTutorial.git
synced 2026-05-09 23:32:08 +08:00
75 lines
1.4 KiB
JavaScript
75 lines
1.4 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.perimeterMax = 2 * this.r * Math.PI;
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this.speed = this.speed;
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this.perimeter = 0;
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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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//长度增长。
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this.perimeter += dt * this.speed;
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if (this.perimeter >= this.perimeterMax) {
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this.perimeter = 0;
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}
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//得到弧度
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let radian = this.perimeter / this.r;
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console.log('radian=', radian);
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let x = this.r * Math.cos(radian);
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let y = this.r * Math.sin(radian);
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console.log('x=', x, 'y=', y);
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this.nodePath.setPosition(cc.v2(x, 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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}); |