/// <summary>
            /// Collision handling for each sprite on the screen.
            /// </summary>
            /// <param name="sprite">Sprite to check collision with.</param>
            private void HandleCollision(Sprite sprite)
            {
            Rectangle itemBounds = new Rectangle(sprite.GetX(), sprite.GetY(), sprite.GetWidth(), sprite.GetHeight());
            String name = sprite.GetName();
            if (IntersectPixels(playerBounds, playerData, itemBounds, sprite.GetColorData()))
            {
                if (!sprite.GetTransparent())
                {
                    if (name.Equals("level1") || name.Equals("level2") || name.Equals("level3"))
                    {
                        if (IsAbove(playerBounds, itemBounds) && ((player.CheckJump() && sprite.GetY() == 399) || (jumping && sprite.GetY() == 499)))
                            sprite.KillVirus();
                        else
                        {
                            if (Constants.isSwappingHand && player.HasSword() && sprite.GetY() == 399)
                            {
                                swordUsed=true;
                                sprite.SlashVirus();
                            }
                            else
                            {
                                if (!Constants.isPunching)
                                    sprite.HitVirus();
                            }
                        }

                    }

                    ApplyEffect(name, sprite);
                    PlaySoundEffects(name, sprite);

                    if (!name.Equals("gym") && !name.Contains("boss"))
                        sprite.Collide(name);
                    else
                    {
                        if (Constants.isSteppingRight)
                        {
                            screenPaused = true;
                            ScreenManager.AddScreen(new ExcercisesScreen(this));
                            this.FreezeScreen();
                        }
                    }

                    if (name.Contains("boss"))
                    {
                        if (playerBounds.Right >= sprite.GetX() + 150)
                        {
                            //Add Boss Screen
                            screenPaused = true;
                            spriteCounter = 0;
                            currentSprite.Clear();
                            globalCounter = 600;
                            this.FreezeScreen();
                            currentSprite.Remove(sprite);
                            ScreenManager.AddScreen(new BossFightScreen(this, Int32.Parse((name.Substring(4)))));
                        }
                    }
                }
            }
            }