I'm currently writing a mod in which I change vanilla features and add a few new features (from version 1.17).

now I want or try to enlarge the world size (height).

since i have no idea if this is possible and if so.

which I would then have to overwrite. my goal would be to expand the world by 128 down (to -128) and 64 up (to 320).

I assume that the whole thing will not be easy because I have to overwrite the whole world generation (ores, caves, decoration, etc).

22 minutes ago, diesieben07 said:

World generation is your smallest problem. The save format doesn't support this in 1.16, so you basically can't.

it is possible to create a custom save format

Edit: or copy one from a old version like 1.15

Edited March 6, 20214 yr by Nyko

Not easily.

And older save formats don't support an increased world height either.

(In fact, I'm pretty sure the current save format goes back to like 1.7. Edit: just checked, Anvil has been in use since 1.2.1)

Edited March 7, 20214 yr by Draco18s

9 hours ago, Draco18s said:

Not easily.

And older save formats don't support an increased world height either.

thanks for the info, since the whole thing sounds pretty complicated, I will probably not change it

Minecraft 1.17 update is out and the Forge version is finally out too,
vanilla's datapack makes it possible to change the height of the world, is this also possible for a mod?

if it is possible how do i change the height?

2 minutes ago, Nyko said:

if it is possible how do i change the height?

yes it is possible you have to overwrite the dimension-type file of the dimension in which you want to change the height (the values min_y and height)

Edited August 3, 20214 yr by Luis_ST

7 minutes ago, Luis_ST said:

yes it is possible you have to overwrite the dimension-type file of the dimension in which you want to change the height (the values min_y and height)

can I only use the vanilla values, so like y_min=-64 and height=384 or its possible to create a larger world?
so like y_min=-256 and height= 512?

Edited August 3, 20214 yr by Nyko

yes you can create a world with max size 4112 (i think), so y_min=-2056 and height=2056
but the values you set in y_min or height should be:

value % 16 == 0

if this is not the case minecraft will use the default values so like y_min=0 and height=256

where do I have to put the file (overworld.json)

Just now, Nyko said:

where do I have to put the file (overworld.json)

data/minecraft/dimension_type/overworld.json

thanks work perfect

sorry, for asking but is it possible that the VerticalAnchor only work in the positive direction,
because i move currently my features into the new world height (-1024<->1024)
and if the VerticalAnchor is negativ they will not generate

Just now, Nyko said:

sorry, for asking but is it possible that the VerticalAnchor only work in the positive direction,
because i move currently my features into the new world height (-1024<->1024)
and if the VerticalAnchor is negativ they will not generate

yep is possible i have the same problem, and i currently not found a solution for this problem

side question does your world load fine with a size of 2048?😅

1 minute ago, Luis_ST said:

yep is possible i have the same problem, and i currently not found a solution for this problem

okay thanks do you have an idea what i can do instead

 

1 minute ago, Luis_ST said:

side question does your world load fine with a size of 2048?😅

with a RenderDistance of 8 yes (i normally use the max value)😁

Just now, Nyko said:

okay thanks do you have an idea what i can do instead

very simple, move the world into positive direction so form -1024<->1024 to 0<->2048

 

1 minute ago, Luis_ST said:

very simple, move the world into positive direction so form -1024<->1024 to 0<->2048

omg i stupid
Another question what is the difference between Decoratable#rangeUniform and Decoratable#rangeTriangle

Just now, Nyko said:

Decoratable#rangeUniform

generates the feature between the first and second value

1 minute ago, Nyko said:

Decoratable#rangeTriangle

generate the feature in a triangle like the new ores
like that:

1 minute ago, Luis_ST said:

generate the feature in a triangle like the new ores
like that:

so that would generate the feature like the coal ore in the picture:

.range(new RangeDecoratorConfiguration(TrapezoidHeight.of(VerticalAnchor.absolute(0), VerticalAnchor.absolute(192), 96)))

 

Just now, Nyko said:

so that would generate the feature like the coal ore in the picture:

yes

thanks a lot