def handle_add_projectile(buffer)
    start_x = buffer.read_short
    start_y = buffer.read_short
    finish_x = buffer.read_short
    finish_y = buffer.read_short
    target_x = buffer.read_short
    target_y = buffer.read_short
    projectile_type = buffer.read_byte
    projectile_id = buffer.read_byte
    if $game_map.in_screen?(start_x, start_y) || $game_map.in_screen?(finish_x, finish_y)
      projectile = projectile_type == Constants::PROJECTILE_WEAPON ? Configs::RANGE_WEAPONS[projectile_id] : Configs::RANGE_SKILLS[projectile_id]
      $game_map.projectiles << Game_Projectile.new(start_x, start_y, finish_x, finish_y, target_x, target_y, projectile[0])
      SceneManager.scene.add_projectile($game_map.projectiles.last)
    end
  end