An all-in-one Paper/Spigot 1.21.1+ utility plugin. Create custom GUIs, dynamic commands, holograms, boss bars, scoreboards, and clickable NPCs in-game—no code or restarts needed.

Development Plugin

A powerful, all-in-one utility plugin for Paper/Spigot 1.21.1+ servers. This plugin allows server owners to create custom GUIs, dynamic commands, interactive items with map art, holograms, and boss bars—all without touching a single line of code or restarting the server.

🚀 Features

1. Custom GUI System

Create interactive menus with buttons that execute commands.

• Visual Editor: /develop gui interface <name>
  • Left Click (with item): Set an item in a slot.
  • Shift + Left Click: Set/Update an item and prompt for a chat command.
  • Right Click: Remove a button from a slot.
• Create a GUI: /develop gui create <name>
• Set a Button (Command): Hold an item and run /develop gui setbutton <name> <slot> <command>
• View a GUI: /develop gui view <name>
• Delete a GUI: /develop gui delete <name> (Requires 15s confirmation)

2. Dynamic Commands

Create your own server commands on the fly.

• Create Command: /develop cmd <name> <execution_command> <level>
  • Levels: 4 for OP only, 1 for all players.
  • Placeholders: Use {player} for the runner's name, or {0}, {1} for arguments.
  • Example: /develop cmd day "time set day" 4
• List Commands: /develop cmd list
• Delete Command: /develop cmd delete <name>

3. Custom Items & Map Art

Craft unique items with custom NBT data or render images onto Minecraft maps.

• Give Item: /develop item <material> <name> <lore> <nbt_key:val> [image.png]
  • Lore: Use | for line breaks.
  • Map Art: Drop a .png into /plugins/Development/images/ and specify the filename as the last argument to render it onto a map!
  • Example: /develop item DIAMOND_SWORD "&bExcalibur" "&7A legendary sword|&ePower: 9000" "custom:sword"

4. Dynamic Holograms

Floating text displays that update in real-time.

• Create: /develop hologram create <name> <text>
  • Placeholders: {online} (online count), {time} (server time).
  • Example: /develop hologram spawn &bWelcome!|&ePlayers: {online}
• Move: /develop hologram movehere <name>
• Delete: /develop hologram delete <name>

5. Boss Bar Announcements

Server-wide announcements with customizable styles.

• Create: /develop bossbar create <name> <color> <style> <title>
  • Colors: PINK, BLUE, RED, GREEN, YELLOW, PURPLE, WHITE.
  • Styles: SOLID, SEGMENTED_6, 10, 12, 20.
• Show: /develop bossbar show <name> (Shows to all online players)
• Progress: /develop bossbar setprogress <name> <0.0 - 1.0>
• Delete: /develop bossbar delete <name>

6. Custom Scoreboard System

Dynamic scoreboards with animation support.

• Visual Editor: /develop scoreboard interface <id>
  • Gives you a book editor. Each page in the book represents one line on the scoreboard.
  • Signing or saving the book updates the scoreboard immediately.
• Create: /develop scoreboard create <id> <world> <title>
• Set Line: /develop scoreboard setline <id> <index> <text>
• Delete: /develop scoreboard delete <id>
• Reload: /develop scoreboard reload

7. Custom NPC System

Spawn stationary entities that execute commands when right-clicked.

• Create NPC: /develop npc create <id> <type> <display_name>
  • Example: /develop npc create guard VILLAGER &b&lCastle Guard
• Set Command: /develop npc setcommand <id> <command>
• List NPCs: /develop npc list
• Delete NPC: /develop npc delete <id>

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🛠️ Installation

1. Download the latest Development.jar.
2. Place it in your server's plugins folder.
3. Restart the server.
4. Ensure you have the permission development.admin or are an OP to use /develop.

📂 File Structure

• guis.yml: Stores all custom menu configurations.
• commands.yml: Stores dynamically registered commands.
• holograms.yml: Stores persistent hologram data.
• npcs.yml: Stores persistent NPC data.
• images/: Put your PNG files here for the Map Art feature.

💻 Technical Requirements

• Server: Paper or Spigot 1.21.1+
• Java: Java 21+
• Developer: everett2323