LBA2:Island polygons

2024-02-03T19:06:23Z

Johannes: The other lines use inclusive interval ends, and the last part is 13 bytes long, see https://github.com/LBALab/lba2remake/blob/e142948d92045c103eba1c97554494f192783663/src/game/scenery/island/ground.ts#L87

{{Infobox format
| extension = LPG
| lba2 = true
| colour = FF99FF
}}

The file contains the definition of the ground triangles used for an island section.

== Specification ==

There are 64x64x2x4 bytes in the file. The grid for an island section is made of 64x64 squares.

Each square has potentially 2 triangles. Each triangle is defined by a ''32 bits'' bitfield.

* ''Bits 0 -> 3'' = '''color''': Index in the game palette of the color to use for this triangle (if useColor flag is set)
* ''Bits 4 -> 4'' = '''unknown_1'''
* ''Bits 5 -> 5'' = '''useTexture''': Whether to use texturing or not for this triangle.
* ''Bits 6 -> 6'' = '''unknown_2'''
* ''Bits 7 -> 7'' = '''useColor''': Whether to use coloring or not for this triangle. (a triangle can be both textured and colored, where there are transparent texture areas)
* ''Bits 8 -> 11'' = '''sound''': sound for this ground
* ''Bits 12 -> 15'' = '''liquid''': Animated sea/lava squares near the shore
* ''Bits 16 -> 16'' = '''orientation''': Direction to use for "cutting" the square into 2 triangles.
* ''Bits 17 -> 17'' = '''collision''': Determines how the surface interacts with the character.
* ''Bits 18 -> 18'' = '''unknown_3'''
* ''Bits 19 -> 31'' = '''uvIndex''': Index of the UV entry to use for this triangle (see [[LBA2:Island texture uvs]])

[[File:Island.jpg|500px]]

{{providers|[[provider::Lupin]]}}

LBA File Information - User contributions [en]

LBA2:Island polygons