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Java Menus

This page explains how to build Java inventory menus in YAML and how to manage them from the web editor.

Menu anatomy (YAML)

A Java menu is a YAML file in plugins/BlueMenu/menus/java/ with a menuName, menuSize (multiple of 9 up to 54), a type of CHEST, and an optional openCommand players can run. Items sit under the items: section and can be gated with display conditions before being added to the inventory.

Items and item stacks

Each item entry must define:

  • name: Display name (supports MiniMessage colors and placeholders).
  • slot: Slot number (0-indexed).
  • itemStack.material: Bukkit material name.
  • itemStack.amount: Stack size.
  • lore: List of lore lines.

Player heads and model data are supported when material is PLAYER_HEAD:

  • itemStack.value: Custom model data integer or a player name, or a base64/URL/texture hash for a custom skin. Placeholders inside value are resolved before applying the texture.

Attributes

Add optional attributes: entries to change flags or enchants:

  • [ENCHANTMENT] namespace;level — adds an enchantment at the desired level.
  • [BOOLEAN] FLAG_NAME;true|false — toggles an ItemFlag such as HIDE_ATTRIBUTES or HIDE_ENCHANTS.

Attributes are applied after the item is built so they also work on animation frames.

Actions and click handling

Actions are evaluated per click type. Use [LEFT_CLICK] or [RIGHT_CLICK] followed by a space and the action payload. Supported targets are:

  • CONSOLE;command — runs a console command with placeholders resolved.
  • PLAYER;command — makes the player run a command (slash automatically added).
  • MESSAGE;text — sends a formatted chat message.
  • CLOSE — closes the inventory (no extra data).

Only actions that match the actual click type execute.

Display conditions

Add display_conditions to hide an item unless the condition passes. Two syntaxes are available:

  • Simple list: every string in the list must be true.
  • Map with all, any, none keys for complex logic.

Conditions can use boolean operators (&&, ||, !), comparison (>, >=, <, <=, ==, !=), string checks (contains, startsWith, endsWith, equals, equalsIgnoreCase, matches), and math expressions. Placeholders are resolved before evaluation.

Animations

Define animations: to cycle through frames at a given interval (ticks). Each frame is an item definition with its own slot and optional attributes; frames are placed into the live inventory of players who have the menu open.

Example (YAML)

menuName: "<bold><gradient:#55FFFF:#5555FF>Example</gradient></bold>"
menuSize: 54
type: CHEST
openCommand: /example
items:
  logo:
    name: "<aqua>Logo"
    slot: 22
    itemStack:
      material: PLAYER_HEAD
      amount: 1
      value: eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUv..." # base64 skin
    lore:
      - "<gray>Welcome!"
    attributes:
      - "[ENCHANTMENT] sharpness;1"
    actions:
      - "[LEFT_CLICK] MESSAGE;<green>Hello!"
    display_conditions:
      any:
        - "{player_level} >= 5"
animations:
  corner:
    interval: 5
    frames:
      frame1:
        slot: 0
        name: "&f"
        itemStack:
          material: BLUE_STAINED_GLASS_PANE
          amount: 1
      frame2:
        slot: 0
        name: "&f"
        itemStack:
          material: BLACK_STAINED_GLASS_PANE
          amount: 1

Using the web editor

  1. In-game, run /bm editor and click the link you receive to open the browser session.
  2. Copy the command shown on the site, paste it back into the server console or chat, and run it to confirm (/bm confirm <code>).
  3. Re-open the web editor; the YAML files from plugins/BlueMenu/menus/java/ will be listed and can be edited live.
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