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Optimize chunk filter a little

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This commit is contained in:
Blue (Lukas Rieger) 2020-07-29 17:06:50 +02:00
parent 7f0df85b6f
commit d97560cc82
1 changed files with 18 additions and 16 deletions
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34
BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/MCAWorld.java
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@ -282,24 +282,26 @@ public Collection<Vector2i> getChunkList(long modifiedSinceMillis, Predicate<Vec
for (int x = 0; x < 32; x++) {
for (int z = 0; z < 32; z++) {
int xzChunk = z * 32 + x;
raf.seek(xzChunk * 4 + 3);
int size = raf.readByte() * 4096;
if (size == 0) continue;
raf.seek(xzChunk * 4 + 4096);
int timestamp = raf.read() << 24;
timestamp |= (raf.read() & 0xFF) << 16;
timestamp |= (raf.read() & 0xFF) << 8;
timestamp |= raf.read() & 0xFF;
if (timestamp >= (modifiedSinceMillis / 1000)) {
Vector2i chunk = new Vector2i(rX * 32 + x, rZ * 32 + z);
if (filter.test(chunk)) {
Vector2i chunk = new Vector2i(rX * 32 + x, rZ * 32 + z);
if (filter.test(chunk)) {
int xzChunk = z * 32 + x;
raf.seek(xzChunk * 4 + 3);
int size = raf.readByte() * 4096;
if (size == 0) continue;
raf.seek(xzChunk * 4 + 4096);
int timestamp = raf.read() << 24;
timestamp |= (raf.read() & 0xFF) << 16;
timestamp |= (raf.read() & 0xFF) << 8;
timestamp |= raf.read() & 0xFF;
if (timestamp >= (modifiedSinceMillis / 1000)) {
chunks.add(chunk);
}
}
}
}