Walk generator

Walk Generate World 0.1.2

• Added lightweight natural mob spawning on revealed one-block-wide paths.
• Hostile mobs use the hidden source world’s darkness and terrain conditions, allowing cave spawns despite skylight leaking through the visible void.
• Passive mobs respect their vanilla biome, ground, and lighting requirements.
• Spawn checks run every two seconds for minimal server impact.
• Limited to 8 monsters and 3 passive creatures per active player and dimension.
• Only revealed columns located 24–64 blocks from a player are considered.