public class Block : Entity
    {
        public static readonly int BLOCK_WIDTH = 32;
        public static readonly int BLOCK_HEIGHT = 24;
        public static readonly int BLOCK_WIDTH_MARGIN = 4;
        public static readonly int BLOCK_HEIGHT_MARGIN = 4;
        public static readonly int NUM_OF_BLOCKS = 60;
        public static readonly float STARTING_BLOCK_POS_X = 10.0F;
        public static readonly float STARTING_BLOCK_POS_Y = 10.0F;
        private static Vector2 nextBlockPos = new Vector2(10.0F, 10.0F);


        private Ball ball;

        private bool deletionFlag;

        public Block(Texture2D texture, Ball ball_)
            : base(
                new Vector2(nextBlockPos.X, nextBlockPos.Y),    //pos
                new Vector2(BLOCK_WIDTH, BLOCK_HEIGHT),         //size
                Vector2.One,                                    //scale
                Color.BlanchedAlmond,                           //colour
                texture)
        {
            //get next block position
            nextBlockPos.X += BLOCK_WIDTH + BLOCK_WIDTH_MARGIN;

            //if we are off the screen, move down a line
            if ( nextBlockPos.X > Game1.SCREEN_WIDTH )
            {
                nextBlockPos.X = STARTING_BLOCK_POS_X;
                nextBlockPos.Y += BLOCK_HEIGHT + BLOCK_HEIGHT_MARGIN;
            }


            this.ball = ball_;
            deletionFlag = false;
        }
    }


//created in Game1.cs by
            for (int i = 0; i < Block.NUM_OF_BLOCKS; ++i)
            {
                Block b = new Block(pixelTexture, ball);
                blocks.Add(b);
                entities.Add(b);
            }