package actors
{
    import flash.display.BitmapData;
    import flash.geom.Rectangle;

    /*
     * RotAnimSprite is a class designed to keep track of the properties of an animated sprite.
     * It does not do any actual animation on its own.
     */
    public class RotAnimSprite //rotatable animated sprite
    {
        private var _frameDelay:Vector.<int>; //flash frames per animation frame

        protected var _width:int;  //width of an individual frame
        protected var _height:int; //height of an individual frame
        private var _angleSize:Number; //degrees per direction faced
        private var _dirCount:int; //number of different images, that compose a 360 degree rotation of the sprite
        private var _repeat:Boolean; //whether the animation repeats or not

        protected var _spriteSheet:BitmapData;

        public function RotAnimSprite(sheet:BitmapData, n:int, dirCount:int, rep:Boolean = false, delay:Vector.<int> = null)
        {
            if (!sheet) {
                throw new Error("sprite sheet BitmapData cannot be null.");
            }
            if (!delay) { //cannot declare objects in parameter initializer, as it is not a compile-time constant
                delay = new Vector.<int>();
                delay.push(3);
            }
            _spriteSheet = sheet;
            _width = n;
            _height = n;
            _dirCount = dirCount;
            _angleSize = 360 / dirCount;
            _repeat = rep;

            _frameDelay = delay;
        }

        public function get width():int {
            return _width;
        }
        public function get height():int {
            return _height;
        }
        public function get angleSize():Number {
            return _angleSize;
        }
        public function get dirCount():int {
            return _dirCount;
        }
        public function get spriteSheet():BitmapData {
            return _spriteSheet;
        }

        public function getFrameDelay(n:int):int {
            return _frameDelay[n];
        }
        public function getTotalFrames():int {
            return _frameDelay.length;
        }

        public function trash():void {
            _frameDelay = null;
            _width = 0;
            _height = 0;
            _angleSize = 0;
            _spriteSheet = null;
            //this = null;
        }

    }

}