private void ShootBullet()
        {
            if (mCurrentState == State.Walking)
            {
                bool aCreateNew = true;
                for (int i = 0; i < mBullets.Count; i++)
                {
                    if (mBullets[i].Position.Y < 0)
                    {
                        mBullets.RemoveAt(i);
                    }
                }

                if (aCreateNew == true)
                {
                    Bullet aBullet = new Bullet();
                    aBullet.LoadContent(mContentManager);
                    aBullet.Fire(Position + new Vector2((FrameSize / 2 - aBullet.Size.Width / 2) + (bulletFlip * 12), 12),
                                 new Vector2(200, 200), new Vector2(0, -1));
                    mBullets.Add(aBullet);

                    bulletFlip *= -1;
                }
            }
        }
        private void ShootBullet(Enemy enemy)
        {
            for (int i = 0; i < mBullets.Count; i++)
            {
                if (mBullets[i].Position.Y > graphicsDevice.Viewport.Height)
                {
                    mBullets.RemoveAt(i);
                }
            }
            Bullet aBullet = new Bullet("laser");

            aBullet.LoadContent(mContentManager);
            aBullet.Fire(enemy.Position - new Vector2((enemy.FrameSize / 2 - aBullet.Size.Width / 2), 12), new Vector2(200, 200), new Vector2(0, 1));
            mBullets.Add(aBullet);
        }