VXA Sprite Show picture leak fix

class Sprite_Picture
  def update_bitmap
    if @picture.name != @pic_name
      self.bitmap = Cache.picture(@picture.name)
    end
    @pic_name = @picture.name
  end

end


class Spriteset_Map

  def update_pictures
    $game_map.screen.pictures.each do |pic|
      @picture_sprites[pic.number] ||= Sprite_Picture.new(@viewport2, pic)
      @picture_sprites[pic.number].update
      if pic.name == ""
        $game_map.screen.pictures.remove(pic.number)
        @picture_sprites[pic.number].dispose
        @picture_sprites[pic.number] = nil
      end
    end
  end

end

class Game_Pictures

  def remove(index)
    @data[index] = nil
  end

end