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RegionIO/internal/world
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Master290 9e91425c5d Write the section fluid count instead of a hardcoded zero 
LevelChunkSection puts two shorts in front of every section: nonEmptyBlockCount
and fluidCount. We wrote the first and then a literal 0 for the second, under a
comment claiming it was a reserved field that vanilla always leaves at zero.
It is not reserved and vanilla does not.

So every client was told every section is fluid-free, in a world where the
aquifer now fills oceans, lakes and flooded caves. The golden test did not catch
it because its fixture is a superflat chunk whose real fluid count is zero.

The count is per block state, not per block: a waterlogged stair holds a fluid
while a dry one does not, and the flag for that comes from the block-state dump
added with the heightmaps.
2026-07-27 03:28:49 +03:00
..
testdata Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
aquifer_verify_test.go Implement the vanilla Aquifer; stop flooding caves 2026-07-27 02:02:12 +03:00
banding_verify_test.go Restore the subsurface layers: real above_preliminary_surface and surface depth 2026-07-27 02:15:14 +03:00
bench_test.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
biome_3d_test.go 3D per-cell biomes (4x4x4) with surface/underground/cave layers 2026-06-24 01:04:01 +03:00
biome_bench_test.go 3D per-cell biomes (4x4x4) with surface/underground/cave layers 2026-06-24 01:04:01 +03:00
biome_lookup.go Biome-aware surface rules from the vanilla rule tree 2026-06-24 19:44:07 +03:00
biome_lookup_test.go 3D per-cell biomes (4x4x4) with surface/underground/cave layers 2026-06-24 01:04:01 +03:00
biome_parameters.json Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
block_properties.bin Send three real heightmaps instead of one repeated three times 2026-07-27 03:27:09 +03:00
block_properties.go Send three real heightmaps instead of one repeated three times 2026-07-27 03:27:09 +03:00
blocks.json Chunk persistence to Anvil .mca region files 2026-06-25 00:40:14 +03:00
cache.go Fix terrain streaming and surface spawning 2026-07-21 11:11:19 +03:00
cache_light.go Fix terrain streaming and surface spawning 2026-07-21 11:11:19 +03:00
cache_light_reuse_test.go Fix terrain streaming and surface spawning 2026-07-21 11:11:19 +03:00
cache_test.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
cache_tickets.go Implement ticketed chunk lifecycle 2026-07-21 10:04:56 +03:00
cache_tickets_test.go Implement ticketed chunk lifecycle 2026-07-21 10:04:56 +03:00
chunk.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
compress.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
deepslate_verify_test.go Bind the surface rule tree to the world seed 2026-07-27 02:25:09 +03:00
encode.go Write the section fluid count instead of a hardcoded zero 2026-07-27 03:28:49 +03:00
encode_test.go Write the section fluid count instead of a hardcoded zero 2026-07-27 03:28:49 +03:00
entity.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
features.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
golden_test.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
heightmap_test.go Write the section fluid count instead of a hardcoded zero 2026-07-27 03:28:49 +03:00
item_blocks.json Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
items.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
light.go Implement ticketed chunk lifecycle 2026-07-21 10:04:56 +03:00
light_test.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
regionfile.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
spawn_surface_test.go Fix terrain streaming and surface spawning 2026-07-21 11:11:19 +03:00
state_names.go Fix terrain streaming and surface spawning 2026-07-21 11:11:19 +03:00
store.go Send three real heightmaps instead of one repeated three times 2026-07-27 03:27:09 +03:00
store_test.go Stop the saved world from masking generator changes 2026-07-27 01:28:05 +03:00
surface_verify_test.go Biome-aware surface rules from the vanilla rule tree 2026-06-24 19:44:07 +03:00
terrain.go Implement multiplayer persistence and vanilla lighting 2026-07-21 09:21:44 +03:00
terrain_bench_test.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
terrain_debug_test.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
vanilla.go Real badlands clay bands and a real biome temperature table 2026-07-27 02:31:10 +03:00
vanilla_bench_test.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
vanilla_parity_test.go Initial commit: RegionIO Minecraft server core (26.1.2/protocol 775) 2026-06-24 00:32:51 +03:00
worldtime_test.go Run the world clock so day and night happen 2026-07-27 02:45:28 +03:00