Multiple Worlds

[sleeps5]

Is there a process to have multiple worlds on one server, or do you have to run multiple server instances on a machine?

 

[SupremeMortal]

There are options at the bottom of the nukkit.yml

 

[sleeps5]

I don't see any syntax or documentation to edit the nukkit.yml Do I also need to install "PlotSquared" or a similar world generator, or will Nukkit do world generation for me? I'm happy to continue researching, I just want to make sure I head in the right direction (nukkit, world generator or other).

 

[SupremeMortal]

Right at the bottom of the nukkit.yml there is

worlds:
#These settings will override the generator set in server.properties and allows loading multiple levels
#Example:
#world:
# seed: 404
# generator: FLAT:2;7,59x1,3x3,2;1;decoration(treecount=80 grasscount=45)

 

[sleeps5]

Yep, saw that. But what is the optionality there? What is the syntax to follow? Are there other options available? What does treecount and grasscount mean?
Do I have to choose a seed? Will changing things in the example for "world" affect current world already created?

 

[SupremeMortal]

So you could have something like this

worlds:
  mainworld:
    seed: 1209381
    generator: DEFAULT
  secondworld:
    seed: 233412
    generator: NETHER

The grass count etc is just settings for flat world generator like superflat presets on Java Edition