Yanfly Item Menu - Hide categories

# ╔═════════════════════════════════════╦════════════════════╗
# ║ Title: Yanfly Item Menu Types       ║  Version: 1.00     ║
# ║ Author: Roninator2                  ║                    ║
# ╠═════════════════════════════════════╬════════════════════╣
# ║ Function:                           ║   Date Created     ║
# ║    Only show category if there      ╠════════════════════╣
# ║    is an item for that category     ║    07 Feb 2022     ║
# ╚═════════════════════════════════════╩════════════════════╝
# ╔══════════════════════════════════════════════════════════╗
# ║ Instructions:                                            ║
# ║   Plug and play                                          ║
# ╚══════════════════════════════════════════════════════════╝
# ╔══════════════════════════════════════════════════════════╗
# ║ Terms of use:                                            ║
# ║ Free for all uses in RPG Maker except nudity             ║
# ╚══════════════════════════════════════════════════════════╝
class Window_ItemCommand < Window_Command
  def make_command_list
    for command in YEA::ITEM::COMMANDS
      case command
      #--- Default Commands ---
      when :item
        add_command(Vocab::item, :item) unless $game_party.items.empty?
      when :weapon
        add_command(Vocab::weapon, :weapon) unless $game_party.weapons.empty?
      when :armor
        add_command(Vocab::armor, :armor) unless $game_party.armors.empty?
      when :key_item
        add_command(Vocab::key_item, :key_item)
      #--- Imported ---
      when :gogototori
        next unless $imported["KRX-AlchemicSynthesis"]
        process_custom_command(command)
      #--- Custom Commands ---
      else
        process_custom_command(command)
      end
    end
  end
end
class Window_ItemType < Window_Command
  def make_command_list
    return if @type.nil?
    #---
    case @type
    when :item
      commands = YEA::ITEM::ITEM_TYPES
    when :weapon
      commands = YEA::ITEM::WEAPON_TYPES
    else
      commands = YEA::ITEM::ARMOUR_TYPES
    end
    #---
    for command in commands
      case @type
      when :weapon
        for i in 0..$game_party.weapons.size - 1
          if $game_party.weapons[i].note.include?(command[1])
            add_command(command[1], command[0], true, @type) unless @list.find {|x| x[:name] == command[1]}
          end
        end
      when :armor
        for i in 0..$game_party.armors.size - 1
          if $game_party.armors[i].note.include?(command[1])
            add_command(command[1], command[0], true, @type) unless @list.find {|x| x[:name] == command[1]}
          end
        end
      when :item
        for i in 0..$game_party.items.size - 1
          if $game_party.items[i].note.include?(command[1])
            add_command(command[1], command[0], true, @type) unless @list.find {|x| x[:name] == command[1]}
          end
        end
      end
      add_command(command[1], command[0], true, @type) if command[0] == :all
    end
  end
end