SpawnProof

Places buttons on all spawnable surfaces within a radius to prevent mob spawning. Perfect for Wither skeleton farms in the Nether.

Commands

Command	Description
/spawnproof	Preview with default radius (128 blocks)
/spawnproof <radius>	Preview with custom radius (8-128 blocks)
/spawnproof stop	Stop the current task
/spawnproof help	Show all commands

Features

Speed Modes

Mode	Rate	Use Case
Safe (default)	10 buttons/sec	Conservative, minimal server impact
Fast	200 buttons/sec	Quick coverage, tested with no TPS lag

Click [START] for safe mode or [START FAST] for fast mode.

Preview System

Before placing any buttons, the mod scans the area and shows:

• Spawnable blocks found - Actual count of surfaces needing buttons
• Buttons in inventory (survival mode)
• Time estimates for both speed modes

Game Modes

Mode	Who	Behavior
OP Mode	Players with permission level 2+	Unlimited stone buttons
Survival Mode	Regular players	Uses any button type from inventory

Supported Button Types (Survival Mode)

• Stone, Polished Blackstone - Don't burn
• Warped, Crimson - Nether wood, don't burn in the Nether!
• Oak, Spruce, Birch, Jungle, Acacia, Dark Oak, Mangrove, Cherry, Bamboo

Spawnable Block Detection

A block is considered spawnable if:

• Current position is air (where the button will go)
• Block below is solid with full top surface (not bedrock)
• Block above is air (mob headroom)

Technical Details

• Minecraft: 1.21.11
• Mod Loader: Fabric
• Dependencies: Fabric API
• Source: GitHub