PreRotation Demo - TestThing.as

package  {
    import flash.display.BitmapData;
    import flash.display.Graphics;
    import flash.display.Sprite;
    import flash.geom.Rectangle;
    import net.flashpunk.Entity;
    import net.flashpunk.FP;
    import net.flashpunk.graphics.Image;
    import net.flashpunk.graphics.PreRotation;
    import net.flashpunk.graphics.Stamp;
    /**
     * ...
     * @author NotARaptor
     */
    public class TestThing extends Entity {

        public static const HANDLE_CENTRE:uint = 0;
        public static const HANDLE_BASE:uint = 1;
        public static const HANDLE_TIP:uint = 2;
        public static const HANDLE_TOPLEFT:uint = 3;
        public static const HANDLE_BOTTOMLEFT:uint = 4;

        private static var _bmp1:BitmapData = null;
        private static var _bmp2:BitmapData = null;

        private var gfx1:PreRotation;
        private var gfx2:PreRotation;

        public function TestThing(x:Number = 0, y:Number = 0) {
            super(x, y);
            if (!_bmp1) _createBitmap();

            gfx1 = new PreRotation(_bmp1, 36, true);
            gfx2 = new PreRotation(_bmp2, 36, true);

            addGraphic(gfx1);
            addGraphic(gfx2);

            gfx2.visible = false;

            setHandle(HANDLE_BASE);
        }

        public function setHandle(where:uint):void {
            switch (where) {
                case HANDLE_CENTRE:
                    gfx1.centerOrigin();
                    gfx2.centerOrigin();
                    break;
                case HANDLE_BASE:
                    gfx1.originX = 30; gfx1.originY = 30;
                    gfx2.originX = 30; gfx2.originY = 30;
                    break;
                case HANDLE_TIP:
                    gfx1.originX = 200; gfx1.originY = 30;
                    gfx2.originX = 200; gfx2.originY = 30;
                    break;
                case HANDLE_TOPLEFT:
                    gfx1.originX = 0; gfx1.originY = 0;
                    gfx2.originX = 0; gfx2.originY = 0;
                    break;
                case HANDLE_BOTTOMLEFT:
                    gfx1.originX = 0; gfx1.originY = 60;
                    gfx2.originX = 0; gfx2.originY = 60;
                    break;
            }
        }

        public function toggleBackground():void {
            if (gfx1.visible) {
                gfx1.visible = false;
                gfx2.visible = true;
            }
            else {
                gfx2.visible = false;
                gfx1.visible = true;
            }
        }

        private static function _createBitmap():void {
            _bmp1 = new BitmapData(200, 60, true, 0);
            _bmp2 = new BitmapData(200, 60, false, 0xFFFFFF);
            var s:Sprite = FP.sprite, g:Graphics = s.graphics;

            g.clear();
            g.beginFill(0x0033FF);
            g.moveTo(30, 0);
            g.lineTo(200, 30);
            g.lineTo(30, 60);
            g.endFill();
            g.beginFill(0x0033FF);
            g.drawCircle(30, 30, 30);
            g.endFill();

            _bmp1.draw(s);
            _bmp2.draw(s);

        }

        override public function update():void {
            gfx1.frameAngle += FP.elapsed * 360;
            gfx2.frameAngle += FP.elapsed * 360;
        }

        override public function render():void {
            super.render();

            var r:Rectangle = FP.rect;
            r.left = x; r.width = 1;
            r.top = 0; r.height = FP.height;
            FP.buffer.fillRect(r, 0xFF0000);
            r.left = 0; r.width = FP.width;
            r.top = y; r.height = 1;
            FP.buffer.fillRect(r, 0xFF0000);
        }

    }

}