Stowage/noita_entangled_worlds
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more efficient bit packing for noita proxys working chunks

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This commit is contained in:
bgkillas 2025-06-25 21:56:34 -04:00
parent a5384b05ae
commit 74c7300de2
1 changed files with 17 additions and 5 deletions
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22
noita-proxy/src/net/world/world_model/chunk.rs
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@ -94,16 +94,28 @@ impl Default for CompactPixel {
pub struct Chunk {
pixels: [u16; CHUNK_SIZE * CHUNK_SIZE],
changed: [bool; CHUNK_SIZE * CHUNK_SIZE],
changed: Changed<u128>,
any_changed: bool,
crc: AtomicCell<Option<u64>>,
}
struct Changed<T: Default>([T; CHUNK_SIZE]);
impl Changed<u128> {
fn get(&self, n: usize) -> bool {
self.0[n / CHUNK_SIZE] & (1 << n) != 0
}
fn set(&mut self, n: usize) {
self.0[n / CHUNK_SIZE] |= 1 << n
}
}
const _: () = assert!(u128::BITS as usize == CHUNK_SIZE);
impl Default for Chunk {
fn default() -> Self {
Self {
pixels: [4095; CHUNK_SIZE * CHUNK_SIZE],
changed: [false; CHUNK_SIZE * CHUNK_SIZE],
changed: Changed([0; CHUNK_SIZE]),
any_changed: false,
crc: None.into(),
}
@ -136,17 +148,17 @@ impl Chunk {
}
}
pub fn changed(&self, offset: usize) -> bool {
self.changed[offset]
self.changed.get(offset)
}
pub fn mark_changed(&mut self, offset: usize) {
self.changed[offset] = true;
self.changed.set(offset);
self.any_changed = true;
self.crc.store(None);
}
pub fn clear_changed(&mut self) {
self.changed = [false; CHUNK_SIZE * CHUNK_SIZE];
self.changed = Changed([0; CHUNK_SIZE]);
self.any_changed = false;
}