Minecraft – Does `/forceload` generate new chunks

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I'm not sure how to test this myself so maybe someone already knows the answer..

Does the /forceload command generate new chunks?

If so, I can then use /forceload to pre-generate the Minecraft world instead of teleporting players around..

This would be useful for pre-generating UHC maps.

Note: You cannot use this command in command blocks. You'd need to write a plugin for your server or write a script that sends commands to your server.

Edit: If anyone has come here to find a script to generate chunks, check out https://github.com/davidcallanan/mc-world-pregenerator

Best Answer

A quick way to test this:

Make a new world.
/forceload add 1000000 1000000
Look in the region folder of the world for the file r.1953.1953.mca.

Result: The file exists. Therefore, /forceload does generate chunks.

Some additional information: Chunk generation happens in multiple phases and there are a few rare cases where the generation can stop after one of these phases (like beyond 30M) and some even rarer ones where it can resume from there later (like when pushing blocks into ungenerated chunks and later walking there).
So I checked with NBTExplorer to see what stage of generation those chunks were in and it turned out to even include ores and structures like mineshafts. I did not find any animals, but I'm not sure if they're even supposed to generate out of player range. Villagers for example would probably generate with villages, as well as their farm animals. Also elder guardians, the Ender dragon, shulkers, woodland mansion mobs, etc.

Related Solutions

Minecraft – How to pre-generate a Minecraft world

In this thread on Reddit, I found a command line script that will generate terrain by repeatedly restarting a server with varying spawn points until the area you specify is filled. This seems like just what you're looking for.

There's also a Bukkit plugin named WorldGenerationControl which can do it on a live server.

Minecraft – Command to detect affected armorstands

I assume, based on your previous question, that you want the number of affected armor stands stored on the player. For that there is no need for CommandStats or /tp. You simply need to ensure the commands are activated in the correct order for a /fill clock (see here for a tutorial that covers activation order via /fill).

Otherwise, the set of commands is essentially the same as those in your previous question, albeit adding instead of setting to mimic CommandStats.

Prerequisites:

Objective to state how many armor stands were near the player.

/scoreboard objectives add ASNum dummy

Clock commands:

The following must be run in numerical order on a clock.

Reset the player's ASNum score to a default of 0.
```
/scoreboard players set @a ASNum 0
```
Cause armor stands around the player to increase their "ASNum" score by 1. This causes the player's score to be equal to the number of armor stands around them, rather than always 1, to mimic CommandStats.
```
/execute @e[type=ArmorStand] ~ ~ ~ scoreboard players add @a[r=10] ASNum 1
```

Players with an ASNum score of 0 would be those not within 10 blocks of an armor stand. Players with a score of 1 or higher will have that many armor stands around them.

/say @a[score_ASNum=0] had no armor stands near them.
/say @a[score_ASNum_min=1] has at least 1 armor stand near them.
/say @a[score_ASNum_min=10] has at least 10 armor stands near them.

Best Answer

Related Solutions

Minecraft – How to pre-generate a Minecraft world

Minecraft – Command to detect affected armorstands

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