World (rules, boundaries, preload, import)

World tools sit in Configure, below the agent panels. Full detail also lives in Worlds, boundaries & rules.

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World rules

Configure → World rules → Apply rules pushes gamerules / time over RCON.

#	Element	Notes
1	World rules	Open this panel
2	Toggles	Night, cycles, weather, mobs, griefing, keep inventory, fire…
3	Day length / snap time	Custom day duration; optional one-shot time set …
4	Apply rules	Push to the Minecraft server via RCON

Setting	Effect
Allow night	Off → always daytime
Daylight cycle	Vanilla sun (forced off if night is disabled or custom day length is set)
Day length (minutes)	Custom full-day duration in real minutes
Snap time on apply	Optional one-shot time set …
Weather / clear weather	Matching gamerules + optional clear
Mob spawning	doMobSpawning
Hostile mobs	Off → difficulty peaceful (animals still OK if mob spawning is on)
Mob griefing / keep inventory / fire	Matching gamerules

Settings persist in data/world_settings.json and re-apply when RCON is available.

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Boundaries (draw a square)

#	Element	Notes
1	Enable play area	Soft/hard enforce + outside shading on the map
2	Draw square / Clear	Click two corners on the map (always snaps to a square)
3	Backup enforce	Soft (teleport back) / Hard (block navigate) / Off
4	Build border / Preload map	worldborder + optional scout-tile fill

Steps

1. Open Boundaries.
2. Check Enable play area if you want soft/hard enforce + outside shading.
3. Draw square → click one corner on the map (fixed), move, click again (always snaps to a square).
4. Choose backup enforce: Soft / Hard / Off.
5. Build border → applies vanilla worldborder to match the square.

Esc or Clear cancels the rubber-band.

Outside the square is shaded on the map when enabled. Soft/hard enforce use the same box as the worldborder.

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Preload map

Minecraft only streams chunks near players. The viewer cannot invent terrain for empty tiles.

#	Meaning
1 / 2	Drawn-square corners
3	Filled terrain after preload
4	Occasional parchment gaps — re-run Preload / mop-up

Steps

1. Spawn at least one agent (needed so the environment is connected).
2. Draw square over the area you care about.
3. Click Preload map.
4. Wait for progress (Preloading… n/m, then optional Filling gaps).

Preload spawns temporary scout bots (up to 8), teleports them across the tile grid, then despawns them. Your agents are not moved.

Cap	Value
Default max tiles	512 (~2896×2896 at 128-block tiles)
Hard max	1024

Large squares take time

Hundreds of tiles with settle + mop-up can take several minutes. Leave the tab open; preload continues even if the websocket briefly reconnects.

If blanks remain, run Preload map again on the same square.

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Import world

#	Element	Notes
1	Import world	Open this panel
2	World .zip	Java world archive (must include level.dat)
3	Upload world	Writes into data/minecraft/world
4	Restart Minecraft	Reloads the Docker server with the new world

1. Zip a Java world folder (must include level.dat).
2. Import world → upload the zip.
3. Restart Minecraft from the same panel (or docker compose restart).
4. Wait until the world finishes loading, then refresh agents.

See Worlds for mount paths and troubleshooting.

Next: Chat & log