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Break or place blocks & damage entities behind the vanilla worldborder without any client side-mods!

Features

• Bypass world border restrictions for:
  • Placing blocks (only possible by left clicking with a block)
  • Breaking blocks
  • Combat and entity interactions
  • Player movement through border
• Visual block outline system for blocks beyond border (using display entities)
• Block breaking animations and effects
• Realistic combat mechanics with critical hits & damage calculation based on armor and weapons

Installation

1. Place the plugin JAR and packetevents.jar in your server's plugins/ folder
2. Restart/reload your server
3. Configure plugins/BeyondBorderUnlocked/config.yml to your needs

Warning

These actions beyond the world border are not intended by game design.
Unexpected bugs may occur, and the experience will differ from normal gameplay.
Test thoroughly before production use.

Configuration (config.yml)

building: false        # Allow block placement beyond border (left click)
breaking: true        # # Allow block breaking beyond border (left click)
walkthrough: true     # Allow walking through border
hitting: true         # Allow hitting entities beyond border

damage:
  enabled: true      # Enable custom border damage settings below (if false, the plugin does not modify the values below in your worlds)
  buffer: 5.0        # Distance before damage starts
  amount: 0.2        # Damage per second

blockOutline:
  enabled: true      # Show block outlines beyond border
  size: 0.009        # Size of outline segments
  block: black_stained_glass  # Block type for outline

Commands

• /beyondborder reload - Reload configuration
• /beyondborder set <setting> <value> - Change settings

Available settings:

• building, breaking, walkthrough, blockOutline.enabled, hitting (true/false)
• damage.enabled, damage.buffer, blockOutline.size, damage.amount (numbers)
• blockOutline.block (text)

Permissions:
beyondborder.commands - Access to commands (default: op)

API Documentation

To use the api add depends: BeyondBorderUnlocked to your plugin.yml
and this plugin as a compile-only dependency:

repositories {
	maven { url "https://jitpack.io" }
}
dependencies {
	compileOnly("com.github.max1mde:BeyondBorderUnlocked:1.0.0")
}

Accessing the API

BeyondBorderUnlocked plugin = BeyondBorderUnlocked.getInstance();
Config config = plugin.getPluginConfig();

Events

Event Class	Async	Cancellable
BlockBreakBorderEvent	No	Yes
BlockPlaceBorderEvent	No	Yes
AsyncEntityDamageBorderEvent	Yes	Yes
AsyncEntityInteractBorderEvent	Yes	Yes

Example Event Usage:

@EventHandler
public void onEntityDamage(AsyncEntityDamageBorderEvent event) {
    if (event.getDamager() instanceof Player) {
        event.setDamage(event.getDamage() * 1.5); // 50% more damage for example
    }
}

Known Issues

• Blocks can only be placed using the left mouse button
• Walking through the world border is buggy due to required player teleportation
• Blocks sometimes continue breaking without holding the mouse button, or breaking progress resets even when holding the left mouse button
• The block selection outline box has incorrect sizing for certain blocks
• Mechanics such as block breaking, damage calculations, and other interactions are not entirely accurate

How does it work?

By default, Minecraft clients don't send certain packets when behind the world border:

• No block break/place packets
• No block break progress packets
• No block selection outline is displayed by the client

This plugin works by:

1. Listening for arm swing animation packets (which are always sent)
2. Calculating which block the player is looking at
3. Simulating the appropriate action server-side:
   • Block breaking with animations and effects
   • Block placement with sound effects

The block selection outline is created using:

• 12 item display entities forming a 3D outline
• Custom packets to spawn and position these entities
• Only visible to the player looking at the block

Because of that, the building feature does not work when right-clicking, as the client does not send any packets when right-clicking beyond the world border. The only packet sent is the arm animation packet when the player left-clicks.