一个旋转的小球

class Ball extends Laya.Sprite{    private static cached:boolean = false;    private body:Laya.Sprite;    constructor(){        super();        this.init();    }    public init():void{        if(!Ball.cached){            Ball.cached = true;            this.body = new Laya.Sprite();            this.body.loadImage("war/ball.png");            this.body.pivot(12,12);        }        this.addChild(this.body);        Laya.timer.frameLoop(1,this,this.animate);        }    private animate(e):void{		this.body.rotation += 10;	}}

通过贝塞尔曲线 获得一个投石车一样的效果

class Main{    private ball:Ball;    private targetX:number = 600;        private targetY:number = 300;      private centerX:number = 0;        private centerY:number = 0;      private angle:number = Math.PI;    private angle2:number = 0;    private radius:number = 150;  //半径    private speed:number = .05;    private points:Array
    
      = [];    private i:number = 0;    constructor()    {			Laya.init(1100, 619, Laya.WebGL);            Laya.loader.load("res/atlas/war.atlas",Laya.Handler.create(this,this.onLoaded),null,Laya.Loader.ATLAS);    }    private onLoaded():void{            this.ball = new Ball();            Laya.stage.addChild(this.ball);		    this.ball.x = Laya.stage.width / 2;		    this.ball.y = Laya.stage.height / 2;            Laya.stage.on(Laya.Event.CLICK,this,this.onClick);            Laya.timer.frameLoop(1,this,this.onEnterFrame);    }    private onEnterFrame():void{        if(this.points.length>0){            if(this.i
     
       0) {            cs *= start;            bcs *= end;            start--;            end--;        }        return (cs / bcs);    };    for (var i = 0; i < len; i++) {        var point = points[i];        x += point.x * Math.pow((1 - t), (len - 1 - i)) * Math.pow(t, i) * (erxiangshi(len - 1, i));        y += point.y * Math.pow((1 - t), (len - 1 - i)) * Math.pow(t, i) * (erxiangshi(len - 1, i));    }    return { x: x, y: y };}new Main();