package myUtils
{
        import net.flashpunk.*;

        public class cameraShake extends Entity
        {
                public static var cameraJitterCounter:int = 0;
                private static var saveCameraX:Number;
                private static var saveCameraY:Number;

                public function cameraShake()
                {

                }



                public static function activateCameraJitter(jitterCount:int):void
                {
                        if (cameraJitterCounter == 0) {  // if already shaking do nothing
                                cameraJitterCounter = jitterCount;
                                saveCameraX = FP.camera.x;  // save camera coords
                                saveCameraY = FP.camera.y;
                        }
                }

                override public function update():void
                {
                        if (cameraJitterCounter > 0)
                        {
                                cameraJitterCounter--;
                                if (cameraJitterCounter == 0)
                                {
                                        FP.camera.x = saveCameraX;
                                        FP.camera.y = saveCameraY;
                                }
                                else
                                {
                                        var cameraXOffset:Number = Math.random() * 5;
                                        if (Math.random() < 0.5)
                                        {
                                                cameraXOffset = -cameraXOffset;
                                        }
                                        var cameraYOffset:Number = Math.random() * 5;
                                        if (Math.random() < 0.5)
                                        {
                                                cameraYOffset = -cameraYOffset;
                                        }
                                        FP.camera.x = saveCameraX + cameraXOffset;
                                        FP.camera.y = saveCameraY + cameraYOffset;
                                }
                        }
                }
        }
}