AntiCrystal-Anchor

A powerful protection plugin that prevents End Crystal, Respawn Anchor and TNT abuse on your server — with granular control over crafting, placing, usage and explosions.

Key Features

• End Crystal Protection: Block crafting, placing, using, and even exploding End Crystals to prevent crystal PvP exploits. You can allow placing while still blocking explosions!

• Respawn Anchor Protection: Prevent Respawn Anchor bombs in the Overworld and End dimensions.

• *TNT Protection (new in V1.2):* Optionally block TNT crafting, placing, igniting (redstone, fire, arrows, player), dispensing and explosions — fully independent from Crystal/Anchor settings.
• Auto-Crafter Blocking: Prevents crafting via the Crafter Block (1.21+) for all three item types — no more bypassing restrictions!
• Granular Control: Enable/disable each restriction independently per item.
• World Filter: Restrict the plugin to specific worlds via whitelist or blacklist.
• Notification Types: Choose how blocked-action messages appear — Chat, ActionBar, or Title.
• Inventory Scanning: Periodic inventory checks with configurable actions (notify, remove, or drop).
• Admin Cooldown: Configure a cooldown between admin notifications to prevent spam.
• Bypass Permissions: Allow trusted players to bypass restrictions per item type.
• Multi-Language Support: Fully translated in English and German.
• Auto-Config Updates: New config options are added automatically without losing your settings.

Protection Options

Item	Craft	Auto-Craft	Place	Use	Explosion
End Crystal	✅	✅	✅	✅	✅
Respawn Anchor	✅	✅	✅	✅	—
TNT (optional)	✅	✅	✅	✅	✅

Commands & Permissions

Role	Command / Permission	Description
Admin	/aca reload · anticrystalanchor.admin	Reload configuration
Admin	anticrystalanchor.notify	Receive inventory-check notifications
Bypass	anticrystalanchor.bypass.crystal	Bypass End Crystal restrictions
Bypass	anticrystalanchor.bypass.anchor	Bypass Respawn Anchor restrictions
Bypass	anticrystalanchor.bypass.tnt	Bypass TNT restrictions
Bypass	anticrystalanchor.bypass.all / bypass.*	Bypass all restrictions

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Configuration Highlights

# End Crystal Settings
end-crystal:
  enabled: true
  block-craft: true
  block-autocraft: true   # Crafter Block (1.21+)
  block-place: true
  block-use: true
  remove-on-place: true
  block-explosion: false  # Allow placing, but no explosion damage

# Respawn Anchor Settings
respawn-anchor:
  enabled: true
  block-craft: true
  block-autocraft: true
  block-place: true
  block-use: true
  remove-on-place: true

# TNT Settings (disabled by default)
tnt:
  enabled: false
  block-craft: true
  block-autocraft: true
  block-place: true
  block-activate: true    # Redstone, fire, arrows, flint & steel
  block-dispenser: true   # Block TNT dispensing
  block-explosion: false  # Cancel all TNT explosions
  remove-on-place: true

# World Filter
worlds:
  mode: "blacklist"       # or "whitelist"
  list: []                # world names, empty = no filter

# Notification type for blocked-action messages
notifications:
  type: "chat"            # chat, actionbar, or title

# Inventory scanning
inventory-check:
  enabled: true
  interval: 60            # seconds
  action: "notify"        # notify, remove, or drop
  notify-player: true
  admin-cooldown: 30      # seconds between admin notifications per player

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Why Use This Plugin?

🛡️ Prevent Grief: Stop crystal, anchor and TNT bombing on your server
⚔️ Fair PvP: Disable overpowered crystal PvP mechanics
🔒 Full Control: Granular settings for each item and action
🤖 Auto-Crafter Proof: Block 1.21+ Crafter Block exploits
🌍 World Filter: Only protect specific worlds or exclude others
📢 Admin Alerts: Get notified when players carry or attempt blocked actions

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Dependencies (optional)

We recommend installing LuckPerms for a better permission management experience!

Compatibility

✅ Paper 1.21.x
✅ Folia 1.21.x
✅ Spigot 1.21.x
✅ Purpur 1.21.x

Support

For bugs or support: https://discord.gg/Mkgz7YK7Y8