[]分享：LayaAir实现曲线运动

 package

{

	import laya.display.Sprite;

	

	public class CurveDemo

	{

		private var ball:Sprite;

		private var xflag:Boolean;

		private var v:uint=2;

		private var d:uint=150;

		public function CurveDemo()

		{

			Laya.init(800,400);

			ball=new Sprite();

			ball.graphics.drawCircle(0,0,50,"#FF00FF");

			Laya.stage.addChild(ball);

			ball.x=275;

			ball.y=200;

			Laya.timer.frameLoop(1,this,onFrame);

		}

		

		private function onFrame():void

		{

			// TODO Auto Generated method stub

			if (ball.x>540||ball.x<10) {

				xflag=! xflag;

			}

			if (xflag) {

				ball.x+=v;

				ball.y=200+d*Math.sin(v*ball.x*Math.PI/180);

			} else {

				ball.x-=v;

				ball.y=200+d*Math.sin(v*ball.x*Math.PI/180);

			}

		}

	}

}