Repo-Mirror/Leaf
9
0
Fork 0
mirror of https://github.com/Winds-Studio/Leaf.git synced 2025-12-29 11:59:24 +00:00
Code Issues Releases Activity

cleanup

Browse Source
This commit is contained in:
hayanesuru
2025-06-11 14:01:46 +09:00
parent 14cb193519
commit e0ff96a982
1 changed files with 32 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
leaf-server/src/main/java/org/dreeam/leaf/world/RandomTickSystem.java
View File

@@ -6,7 +6,6 @@ import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.RandomSource;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.chunk.LevelChunk;
import net.minecraft.world.level.levelgen.BitRandomSource;
import net.minecraft.world.level.material.FluidState;
import java.util.OptionalLong;
@@ -14,13 +13,12 @@ import java.util.OptionalLong;
public final class RandomTickSystem {
private static final long SCALE = 0x100000L;
private static final long SCALE_HALF = 0x80000L;
private static final int BITS = 20;
private static final long CHUNK_BLOCKS = 4096L;
private final LongArrayList queue = new LongArrayList();
private final LongArrayList samples = new LongArrayList();
private final LongArrayList weights = new LongArrayList();
private long weightsSum = 0;
private long weightsSum = 0L;
private int bits = 60;
private long cacheRandom = 0L;
@@ -31,18 +29,23 @@ public final class RandomTickSystem {
}
var random = world.simpleRandom;
int spin = random.next(BITS);
int chosen = (weightsSum >= SCALE_HALF ? random.nextInt((int) (weightsSum / SCALE_HALF)) : 0)
+ (((int) (weightsSum % SCALE_HALF) >= random.next(BITS - 1)) ? 1 : 0);
if (chosen == 0) {
long chosen = 0L;
if (weightsSum >= SCALE_HALF) {
chosen += boundedNextLong(random, (weightsSum / SCALE_HALF));
}
if (((weightsSum % SCALE_HALF) >= boundedNextLong(random, SCALE_HALF))) {
chosen += 1L;
}
if (chosen == 0L) {
return;
}
long spoke = weightsSum / chosen;
long[] weightsRaw = weights.elements();
long[] samplesRaw = samples.elements();
final long[] weightsRaw = weights.elements();
final long[] samplesRaw = samples.elements();
final long spoke = weightsSum / chosen;
long accumulated = weightsRaw[0];
long current = spin;
long current = boundedNextLong(random, spoke);
int i = 0;
while (current < weightsSum) {
while (accumulated < current) {
@@ -55,7 +58,7 @@ public final class RandomTickSystem {
while (queue.size() < chosen) {
queue.push(samplesRaw[i]);
}
weightsSum = 0;
weightsSum = 0L;
weights.clear();
samples.clear();
@@ -63,7 +66,7 @@ public final class RandomTickSystem {
int j = queue.size();
long[] queueRaw = queue.elements();
int k = j - 3;
// optimize getChunk for large ticking block or tick speed
// optimize getChunk for large tickable block chunk or high tick speed
for (i = 0; i < k; i += 4) {
long packed1 = queueRaw[i];
long packed2 = queueRaw[i + 1];
@@ -146,7 +149,7 @@ public final class RandomTickSystem {
}
public void randomTickChunk(
BitRandomSource random,
RandomSource random,
LevelChunk chunk,
long tickSpeed
) {
@@ -163,4 +166,18 @@ public final class RandomTickSystem {
weightsSum += chance;
}
}
public static long boundedNextLong(RandomSource rng, long bound) {
final long m = bound - 1;
long r = rng.nextLong();
if ((bound & m) == 0L) {
r &= m;
} else {
for (long u = r >>> 1;
u + m - (r = u % bound) < 0L;
u = rng.nextLong() >>> 1)
;
}
return r;
}
}