//参数常量
const Y_SPEED = 0.07; //y轴变化速度
const X_SPEED = 0.10; //x轴变化速度
const AMPLITUDE = 150.0; //最大振幅
const X_START = stage.stageWidth/2; //x轴的起始点
const Y_START = stage.stageHeight/2; //y轴的起始点
//变量
var ySpeed:Number = Y_SPEED;
var xSpeed:Number = X_SPEED;
var amplitude:Number = AMPLITUDE;
var angleX = 0;
var angleY = 0;
var b:Ball = new Ball();
addChild(b);
b.x = X_START;
b.y = Y_START;
graphics.moveTo(b.x,b.y);
addEventListener(Event.ENTER_FRAME,EnterFrameHandler);
function EnterFrameHandler(e:Event){
b.y = Y_START + Math.sin(angleY) * amplitude;
b.x = X_START + Math.sin(angleX) * amplitude;
angleX += xSpeed;
angleY += ySpeed;
//angleX += Math.random()/10;
//angleY += Math.random()/5;
graphics.lineStyle(1,0xefefef,1);
graphics.lineTo(b.x,b.y);
}