Mega Code Archive

 

Categories / Flash ActionScript / Animation

 

One possible use for this example is to simulate a fly, randomly buzzing around a room

package {     import flash.display.Sprite;     import flash.events.Event;          public class Main extends Sprite {         private var _sprite:Sprite= new Sprite(  );                  public function Main(  ) {             _sprite.graphics.beginFill(0xffffff, 100);             _sprite.graphics.drawCircle(0, 0, 25);             _sprite.graphics.beginFill(0x000000, 100);             _sprite.graphics.drawCircle(20, 0, 5);             _sprite.x = 100;             _sprite.y = 100;             addChild(_sprite);             addEventListener(Event.ENTER_FRAME, onEnterFrame);         }                  public function onEnterFrame(event:Event):void {             var dx:Number = mouseX - _sprite.x;             var dy:Number = mouseY - _sprite.y;             var radians:Number = Math.atan2(dy, dx);             _sprite.rotation = radians * 180 / Math.PI;         }     }     }