Archived

This page has been archived and migrated, and will no longer recieve updates. For the latest version of this page see it on the Hytale wiki.

Note

This page was refined and clarified by ChatGPT.

EnvironmentChunk format

EnvironmentChunk data is in Big Endian byte order.

Binary format

Name	Size (in bytes)	Description
PaletteSize	4	The number of palette entries.
Palette Entries	*PaletteSize*	The palette entries.
Columns	Variable	Exactly 1024 1×1 columns for this chunk.

Name	Size (in bytes)	Description
SerialId	4	A serialized environment Id referenced by column entries.
KeyLength	2	Unsigned 16-bit length of Key.
Key	*KeyLength*	UTF-8 encoded environment key.

Columns reference environments using SerialId.

Exactly 1024 1×1 columns, ordered in a 32×32 grid:

x = columnIndex % 32
z = columnIndex / 32

Name	Size (in bytes)	Description
BoundaryCount	4	The number of vertical Y boundaries.
MaxYs	*BoundaryCount* × 4	The absolute Y boundary values (inclusive upper bounds of each segment).
EnvironmentIds	(*BoundaryCount* + 1) × 4	Serialized environment IDs for each vertical segment.

If:

BoundaryCount = n
MaxYs = [Y0, Y1, ..., Yn-1]
EnvironmentIds = [E0, E1, ..., En]

Then vertical segments are:

Segment 0: ( -∞ -> MaxYs[0] )
Segment i: ( MaxYs[i-1] + 1 -> MaxYs[i] )
Segment n: ( MaxYs[n-1] + 1 -> +∞ )

Each EnvironmentIds[i] must match a SerialId defined in the palette.