円運動

しかくいオブジェクトがただ単に円運動をするActionScriptだよ

ソース

package {
    import flash.display.Sprite;
    import flash.display.Graphics;
    import flash.events.Event;
    public class FlashTest extends Sprite {
        public function FlashTest() {
        this.stage.addEventListener(Event.ENTER_FRAME, draw);
		var myObj:Sprite=new Sprite();
		var myGra:Graphics=myObj.graphics;
		var radius:Number =100;
		var i:Number=0;
			
		myGra.beginFill(0xFF7700,1);
		myGra.drawRect(0,0,50,50);
		myGra.endFill();
			
		var center_w:Number=(stage.stageWidth-myObj.width)/2;
		var center_h:Number=(stage.stageHeight-myObj.height)/2;
			
		addChild(myObj);
				
			function draw(e:Event):void {
				i+=6;
				myObj.x=center_w+(radius*Math.sin(Math.PI/180*i));
				myObj.y=center_h+(radius*Math.cos(Math.PI/180*i));
			}
        }
    }
}

お広告