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Get rid of garbage trailing data by truncating compressed region files

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This commit is contained in:
crumblingstatue 2023-04-14 23:40:18 +02:00
parent 04d5b661c3
commit 8345879a61
1 changed files with 4 additions and 2 deletions
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6
src/world/serialization.rs
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@ -1,6 +1,6 @@
use std::{ use std::{
fs::OpenOptions, fs::OpenOptions,
io::{Seek, SeekFrom, Write}, io::{Seek, Write},
path::Path, path::Path,
}; };
@ -50,12 +50,14 @@ pub(super) fn save_chunk(pos: &ChunkPos, chk: &Chunk) {
region_tile_data[off + 2..off + 4].copy_from_slice(&tile.mid.to_le_bytes()); region_tile_data[off + 2..off + 4].copy_from_slice(&tile.mid.to_le_bytes());
region_tile_data[off + 4..off + 6].copy_from_slice(&tile.fg.to_le_bytes()); region_tile_data[off + 4..off + 6].copy_from_slice(&tile.fg.to_le_bytes());
} }
f.seek(SeekFrom::Start(0)).unwrap(); f.rewind().unwrap();
f.write_all(&u64::to_le_bytes(existence_bitset.0)[..]) f.write_all(&u64::to_le_bytes(existence_bitset.0)[..])
.unwrap(); .unwrap();
assert_eq!(f.stream_position().unwrap(), 8); assert_eq!(f.stream_position().unwrap(), 8);
assert_eq!(region_tile_data.len(), REGION_BYTES); assert_eq!(region_tile_data.len(), REGION_BYTES);
let result = f.write_all(&zstd::encode_all(&region_tile_data[..], COMP_LEVEL).unwrap()); let result = f.write_all(&zstd::encode_all(&region_tile_data[..], COMP_LEVEL).unwrap());
let cursor = f.stream_position().unwrap();
f.set_len(cursor).unwrap();
log::info!("{result:?}"); log::info!("{result:?}");
} }