mirror of
https://github.com/PaperMC/Paper.git
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e035fd7034
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: cc9aa21a SPIGOT-6399, SPIGOT-7344: Clarify collidable behavior for player entities f23325b6 Add API for per-world simulation distances 26e1774e Add API for per-world view distances 0b541e60 Add PlayerLoginEvent#getRealAddress 5f027d2d PR-949: Add Vector#fromJOML() overloads for read-only vector types CraftBukkit Changes: bcf56171a PR-1321: Clean up some stuff which got missed during previous PRs 7f833a2d1 SPIGOT-7462: Players no longer drop XP after dying near a Sculk Catalyst 752aac669 Implement APIs for per world view and simulation distances 57d7ef433 Preserve empty enchantment tags for glow effect 465ec3fb4 Remove connected check on setScoreboard f90ce621e Use one PermissibleBase for all command blocks 5876cca44 SPIGOT-7550: Fix creation of Arrow instances f03fc3aa3 SPIGOT-7549: ServerTickManager#setTickRate incorrect Precondition 9d7f49b01 SPIGOT-7548: Fix wrong spawn location for experience orb and dropped item Spigot Changes: ed9ba9a4 Drop no longer required patch ignoring -o option 86b5dd6a SPIGOT-7546: Fix hardcoded check for outdated client message aa7cde7a Remove obsolete APIs for per world view and simulation distances 6dff577e Remove obsolete patch preserving empty `ench` tags a3bf95b8 Remove obsolete PlayerLoginEvent#getRealAddress 1b02f5d6 Remove obsolete connected check on setScoreboard patch acf717eb Remove obsolete command block PermissibleBase patch 053fa2a9 Remove redundant patch dealing with null tile entities
462 lines
21 KiB
Diff
462 lines
21 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sun, 20 Jun 2021 16:19:26 -0700
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Subject: [PATCH] Optimise random block ticking
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Massive performance improvement for random block ticking.
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The performance increase comes from the fact that the vast
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majority of attempted block ticks (~95% in my testing) fail
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because the randomly selected block is not tickable.
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Now only tickable blocks are targeted, however this means that
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the maximum number of block ticks occurs per chunk. However,
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not all chunks are going to be targeted. The percent chance
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of a chunk being targeted is based on how many tickable blocks
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are in the chunk.
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This means that while block ticks are spread out less, the
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total number of blocks ticked per world tick remains the same.
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Therefore, the chance of a random tickable block being ticked
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remains the same.
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diff --git a/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java b/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..7d93652c1abbb6aee6eb7c26cf35d4d032ef7b69
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java
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@@ -0,0 +1,65 @@
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+package io.papermc.paper.util.math;
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+
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+import net.minecraft.util.RandomSource;
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+import net.minecraft.world.level.levelgen.LegacyRandomSource;
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+import net.minecraft.world.level.levelgen.PositionalRandomFactory;
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.checkerframework.framework.qual.DefaultQualifier;
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+
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+@DefaultQualifier(NonNull.class)
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+public final class ThreadUnsafeRandom extends LegacyRandomSource {
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+
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+ // See javadoc and internal comments for java.util.Random where these values come from, how they are used, and the author for them.
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+ private static final long multiplier = 0x5DEECE66DL;
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+ private static final long addend = 0xBL;
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+ private static final long mask = (1L << 48) - 1;
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+
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+ private static long initialScramble(long seed) {
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+ return (seed ^ multiplier) & mask;
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+ }
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+
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+ private long seed;
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+
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+ public ThreadUnsafeRandom(long seed) {
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+ super(seed);
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+ }
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+
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+ @Override
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+ public RandomSource fork() {
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+ return new ThreadUnsafeRandom(this.nextLong());
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+ }
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+
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+ @Override
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+ public PositionalRandomFactory forkPositional() {
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+ throw new UnsupportedOperationException();
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+ }
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+
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+ @Override
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+ public void setSeed(long seed) {
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+ // note: called by Random constructor
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+ this.seed = initialScramble(seed);
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+ }
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+
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+ @Override
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+ public int next(int bits) {
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+ // avoid the expensive CAS logic used by superclass
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+ return (int) (((this.seed = this.seed * multiplier + addend) & mask) >>> (48 - bits));
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+ }
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+
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+ // Taken from
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+ // https://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/
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+ // https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/blob/master/2016/06/25/fastrange.c
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+ // Original license is public domain
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+ public static int fastRandomBounded(final long randomInteger, final long limit) {
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+ // randomInteger must be [0, pow(2, 32))
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+ // limit must be [0, pow(2, 32))
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+ return (int)((randomInteger * limit) >>> 32);
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+ }
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+
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+ @Override
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+ public int nextInt(int bound) {
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+ // yes this breaks random's spec
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+ // however there's nothing that uses this class that relies on it
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+ return fastRandomBounded(this.next(32) & 0xFFFFFFFFL, bound);
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 716420eb3dea5a9b6d8e72d0bdf388dc37677032..cd331e0c9b46187d3ee5012f18b27bd60fbccc16 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -856,6 +856,10 @@ public class ServerLevel extends Level implements WorldGenLevel {
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entityplayer.stopSleepInBed(false, false);
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});
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}
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+ // Paper start - optimise random block ticking
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+ private final BlockPos.MutableBlockPos chunkTickMutablePosition = new BlockPos.MutableBlockPos();
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+ private final io.papermc.paper.util.math.ThreadUnsafeRandom randomTickRandom = new io.papermc.paper.util.math.ThreadUnsafeRandom(this.random.nextLong());
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+ // Paper end
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public void tickChunk(LevelChunk chunk, int randomTickSpeed) {
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ChunkPos chunkcoordintpair = chunk.getPos();
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@@ -865,8 +869,10 @@ public class ServerLevel extends Level implements WorldGenLevel {
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ProfilerFiller gameprofilerfiller = this.getProfiler();
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gameprofilerfiller.push("thunder");
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+ final BlockPos.MutableBlockPos blockposition = this.chunkTickMutablePosition; // Paper - use mutable to reduce allocation rate, final to force compile fail on change
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+
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if (!this.paperConfig().environment.disableThunder && flag && this.isThundering() && this.spigotConfig.thunderChance > 0 && this.random.nextInt(this.spigotConfig.thunderChance) == 0) { // Spigot // Paper - disable thunder
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- BlockPos blockposition = this.findLightningTargetAround(this.getBlockRandomPos(j, 0, k, 15));
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+ blockposition.set(this.findLightningTargetAround(this.getBlockRandomPos(j, 0, k, 15))); // Paper
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if (this.isRainingAt(blockposition)) {
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DifficultyInstance difficultydamagescaler = this.getCurrentDifficultyAt(blockposition);
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@@ -898,7 +904,10 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (!this.paperConfig().environment.disableIceAndSnow) { // Paper
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for (int l = 0; l < randomTickSpeed; ++l) {
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if (this.random.nextInt(48) == 0) {
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- this.tickPrecipitation(this.getBlockRandomPos(j, 0, k, 15));
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+ // Paper start
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+ this.getRandomBlockPosition(j, 0, k, 15, blockposition);
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+ this.tickPrecipitation(blockposition, chunk);
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+ // Paper end
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}
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}
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} // Paper
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@@ -906,36 +915,37 @@ public class ServerLevel extends Level implements WorldGenLevel {
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gameprofilerfiller.popPush("tickBlocks");
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timings.chunkTicksBlocks.startTiming(); // Paper
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if (randomTickSpeed > 0) {
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- LevelChunkSection[] achunksection = chunk.getSections();
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-
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- for (int i1 = 0; i1 < achunksection.length; ++i1) {
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- LevelChunkSection chunksection = achunksection[i1];
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-
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- if (chunksection.isRandomlyTicking()) {
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- int j1 = chunk.getSectionYFromSectionIndex(i1);
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- int k1 = SectionPos.sectionToBlockCoord(j1);
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-
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- for (int l1 = 0; l1 < randomTickSpeed; ++l1) {
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- BlockPos blockposition1 = this.getBlockRandomPos(j, k1, k, 15);
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-
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- gameprofilerfiller.push("randomTick");
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- BlockState iblockdata = chunksection.getBlockState(blockposition1.getX() - j, blockposition1.getY() - k1, blockposition1.getZ() - k);
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-
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- if (iblockdata.isRandomlyTicking()) {
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- iblockdata.randomTick(this, blockposition1, this.random);
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- }
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+ // Paper start - optimize random block ticking
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+ LevelChunkSection[] sections = chunk.getSections();
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+ final int minSection = io.papermc.paper.util.WorldUtil.getMinSection(this);
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+ for (int sectionIndex = 0; sectionIndex < sections.length; sectionIndex++) {
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+ LevelChunkSection section = sections[sectionIndex];
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+ if (section == null || section.tickingList.size() == 0) continue;
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+
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+ int yPos = (sectionIndex + minSection) << 4;
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+ for (int a = 0; a < randomTickSpeed; ++a) {
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+ int tickingBlocks = section.tickingList.size();
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+ int index = this.randomTickRandom.nextInt(16 * 16 * 16);
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+ if (index >= tickingBlocks) {
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+ continue;
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+ }
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- FluidState fluid = iblockdata.getFluidState();
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+ long raw = section.tickingList.getRaw(index);
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+ int location = com.destroystokyo.paper.util.maplist.IBlockDataList.getLocationFromRaw(raw);
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+ int randomX = location & 15;
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+ int randomY = ((location >>> (4 + 4)) & 255) | yPos;
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+ int randomZ = (location >>> 4) & 15;
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- if (fluid.isRandomlyTicking()) {
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- fluid.randomTick(this, blockposition1, this.random);
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- }
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+ BlockPos blockposition2 = blockposition.set(j + randomX, randomY, k + randomZ);
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+ BlockState iblockdata = com.destroystokyo.paper.util.maplist.IBlockDataList.getBlockDataFromRaw(raw);
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- gameprofilerfiller.pop();
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- }
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+ iblockdata.randomTick(this, blockposition2, this.randomTickRandom);
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}
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+ // We drop the fluid tick since LAVA is ALREADY TICKED by the above method (See LiquidBlock).
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+ // TODO CHECK ON UPDATE (ping the Canadian)
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}
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}
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+ // Paper end - optimise random block ticking
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timings.chunkTicksBlocks.stopTiming(); // Paper
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gameprofilerfiller.pop();
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@@ -943,17 +953,25 @@ public class ServerLevel extends Level implements WorldGenLevel {
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@VisibleForTesting
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public void tickPrecipitation(BlockPos pos) {
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- BlockPos blockposition1 = this.getHeightmapPos(Heightmap.Types.MOTION_BLOCKING, pos);
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- BlockPos blockposition2 = blockposition1.below();
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+ // Paper start - optimise chunk ticking
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+ tickPrecipitation(pos.mutable(), this.getChunkAt(pos));
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+ }
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+ public void tickPrecipitation(BlockPos.MutableBlockPos blockposition1, final LevelChunk chunk) {
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+ int normalY = chunk.getHeight(Heightmap.Types.MOTION_BLOCKING, blockposition1.getX() & 15, blockposition1.getZ() & 15) + 1;
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+ int downY = normalY - 1;
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+ blockposition1.setY(normalY);
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+ // Paper end - optimise chunk ticking
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Biome biomebase = (Biome) this.getBiome(blockposition1).value();
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- if (biomebase.shouldFreeze(this, blockposition2)) {
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- org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this, blockposition2, Blocks.ICE.defaultBlockState(), null); // CraftBukkit
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+ blockposition1.setY(downY);
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+ if (biomebase.shouldFreeze(this, blockposition1)) {
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+ org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this, blockposition1, Blocks.ICE.defaultBlockState(), null); // CraftBukkit
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}
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if (this.isRaining()) {
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int i = this.getGameRules().getInt(GameRules.RULE_SNOW_ACCUMULATION_HEIGHT);
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+ blockposition1.setY(normalY); // Paper - optimise chunk ticking
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if (i > 0 && biomebase.shouldSnow(this, blockposition1)) {
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BlockState iblockdata = this.getBlockState(blockposition1);
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@@ -971,12 +989,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
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}
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}
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- Biome.Precipitation biomebase_precipitation = biomebase.getPrecipitationAt(blockposition2);
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+ blockposition1.setY(downY); // Paper - optimise chunk ticking
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+ Biome.Precipitation biomebase_precipitation = biomebase.getPrecipitationAt(blockposition1); // Paper - optimise chunk ticking
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if (biomebase_precipitation != Biome.Precipitation.NONE) {
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- BlockState iblockdata2 = this.getBlockState(blockposition2);
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+ BlockState iblockdata2 = this.getBlockState(blockposition1); // Paper - optimise chunk ticking
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- iblockdata2.getBlock().handlePrecipitation(iblockdata2, this, blockposition2, biomebase_precipitation);
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+ iblockdata2.getBlock().handlePrecipitation(iblockdata2, this, blockposition1, biomebase_precipitation); // Paper - optimise chunk ticking
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}
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}
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diff --git a/src/main/java/net/minecraft/util/BitStorage.java b/src/main/java/net/minecraft/util/BitStorage.java
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index 68648c5a5e3ff079f832092af0f2f801c42d1ede..8bafd5fd7499ba4a04bf706cfd1e156073716e21 100644
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--- a/src/main/java/net/minecraft/util/BitStorage.java
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+++ b/src/main/java/net/minecraft/util/BitStorage.java
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@@ -20,4 +20,15 @@ public interface BitStorage {
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void unpack(int[] out);
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BitStorage copy();
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+
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+ // Paper start
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+ void forEach(DataBitConsumer consumer);
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+
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+ @FunctionalInterface
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+ interface DataBitConsumer {
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+
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+ void accept(int location, int data);
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+
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+ }
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+ // Paper end
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}
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diff --git a/src/main/java/net/minecraft/util/SimpleBitStorage.java b/src/main/java/net/minecraft/util/SimpleBitStorage.java
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index 2b3fd62dca2d1475075b5dcde56cea85b749cb44..e4d0d7e8fc58b8f9f614d74a141e452166e0364c 100644
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--- a/src/main/java/net/minecraft/util/SimpleBitStorage.java
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+++ b/src/main/java/net/minecraft/util/SimpleBitStorage.java
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@@ -124,6 +124,28 @@ public class SimpleBitStorage implements BitStorage {
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return this.bits;
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}
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+ // Paper start
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+ @Override
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+ public final void forEach(DataBitConsumer consumer) {
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+ int i = 0;
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+ long[] along = this.data;
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+ int j = along.length;
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+
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+ for (int k = 0; k < j; ++k) {
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+ long l = along[k];
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+
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+ for (int i1 = 0; i1 < this.valuesPerLong; ++i1) {
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+ consumer.accept(i, (int) (l & this.mask));
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+ l >>= this.bits;
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+ ++i;
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+ if (i >= this.size) {
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+ return;
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+ }
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+ }
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+ }
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+ }
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+ // Paper end
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+
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@Override
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public void getAll(IntConsumer action) {
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int i = 0;
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diff --git a/src/main/java/net/minecraft/util/ZeroBitStorage.java b/src/main/java/net/minecraft/util/ZeroBitStorage.java
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index f0f764f36fb92c64ab2dc8a0a50c3f48321c3c9a..311625277a26c9c187025a1036978229241b965f 100644
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--- a/src/main/java/net/minecraft/util/ZeroBitStorage.java
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+++ b/src/main/java/net/minecraft/util/ZeroBitStorage.java
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@@ -46,6 +46,15 @@ public class ZeroBitStorage implements BitStorage {
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return 0;
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}
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+ // Paper start
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+ @Override
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+ public void forEach(DataBitConsumer consumer) {
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+ for(int i = 0; i < this.size; ++i) {
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+ consumer.accept(i, 0);
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+ }
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+ }
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+ // Paper end
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+
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@Override
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public void getAll(IntConsumer action) {
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for(int i = 0; i < this.size; ++i) {
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Turtle.java b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
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index 722e323d2ae3f4ac8aa3197fed79f7d926d5ccfa..f8c1dfc8e121a406955348a1ec00c264d73e73f7 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
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@@ -87,7 +87,7 @@ public class Turtle extends Animal {
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}
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public void setHomePos(BlockPos pos) {
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- this.entityData.set(Turtle.HOME_POS, pos);
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+ this.entityData.set(Turtle.HOME_POS, pos.immutable()); // Paper - called with mutablepos...
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}
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public BlockPos getHomePos() {
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 705f31f54bf7d24aa57700044b65845da532d4eb..0bf3bfd0a44fe7219e6ed451eb85c25e87a31aac 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -1394,10 +1394,18 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public abstract RecipeManager getRecipeManager();
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public BlockPos getBlockRandomPos(int x, int y, int z, int l) {
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+ // Paper start - allow use of mutable pos
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+ BlockPos.MutableBlockPos ret = new BlockPos.MutableBlockPos();
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+ this.getRandomBlockPosition(x, y, z, l, ret);
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+ return ret.immutable();
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+ }
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+ public final BlockPos.MutableBlockPos getRandomBlockPosition(int x, int y, int z, int l, BlockPos.MutableBlockPos out) {
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+ // Paper end
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this.randValue = this.randValue * 3 + 1013904223;
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int i1 = this.randValue >> 2;
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- return new BlockPos(x + (i1 & 15), y + (i1 >> 16 & l), z + (i1 >> 8 & 15));
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+ out.set(x + (i1 & 15), y + (i1 >> 16 & l), z + (i1 >> 8 & 15)); // Paper - change to setValues call
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+ return out; // Paper
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}
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public boolean noSave() {
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diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
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index b8fee4f8a0cfe32b9ef7f3f3cf818cbaec0d3fca..12edaf88cca54540c617239ac31b2263dfa0ecd7 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
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@@ -25,6 +25,7 @@ public class LevelChunkSection {
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public final PalettedContainer<BlockState> states;
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// CraftBukkit start - read/write
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private PalettedContainer<Holder<Biome>> biomes;
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+ public final com.destroystokyo.paper.util.maplist.IBlockDataList tickingList = new com.destroystokyo.paper.util.maplist.IBlockDataList(); // Paper
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public LevelChunkSection(PalettedContainer<BlockState> datapaletteblock, PalettedContainer<Holder<Biome>> palettedcontainerro) {
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// CraftBukkit end
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@@ -77,6 +78,9 @@ public class LevelChunkSection {
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--this.nonEmptyBlockCount;
|
|
if (iblockdata1.isRandomlyTicking()) {
|
|
--this.tickingBlockCount;
|
|
+ // Paper start
|
|
+ this.tickingList.remove(x, y, z);
|
|
+ // Paper end
|
|
}
|
|
}
|
|
|
|
@@ -88,6 +92,9 @@ public class LevelChunkSection {
|
|
++this.nonEmptyBlockCount;
|
|
if (state.isRandomlyTicking()) {
|
|
++this.tickingBlockCount;
|
|
+ // Paper start
|
|
+ this.tickingList.add(x, y, z, state);
|
|
+ // Paper end
|
|
}
|
|
}
|
|
|
|
@@ -115,40 +122,31 @@ public class LevelChunkSection {
|
|
}
|
|
|
|
public void recalcBlockCounts() {
|
|
- class a implements PalettedContainer.CountConsumer<BlockState> {
|
|
-
|
|
- public int nonEmptyBlockCount;
|
|
- public int tickingBlockCount;
|
|
- public int tickingFluidCount;
|
|
-
|
|
- a() {}
|
|
-
|
|
- public void accept(BlockState iblockdata, int i) {
|
|
- FluidState fluid = iblockdata.getFluidState();
|
|
-
|
|
- if (!iblockdata.isAir()) {
|
|
- this.nonEmptyBlockCount += i;
|
|
- if (iblockdata.isRandomlyTicking()) {
|
|
- this.tickingBlockCount += i;
|
|
- }
|
|
+ // Paper start - unfuck this
|
|
+ this.tickingList.clear();
|
|
+ this.nonEmptyBlockCount = 0;
|
|
+ this.tickingBlockCount = 0;
|
|
+ this.tickingFluidCount = 0;
|
|
+ this.states.forEachLocation((BlockState iblockdata, int i) -> {
|
|
+ FluidState fluid = iblockdata.getFluidState();
|
|
+
|
|
+ if (!iblockdata.isAir()) {
|
|
+ this.nonEmptyBlockCount = (short) (this.nonEmptyBlockCount + 1);
|
|
+ if (iblockdata.isRandomlyTicking()) {
|
|
+ this.tickingBlockCount = (short)(this.tickingBlockCount + 1);
|
|
+ this.tickingList.add(i, iblockdata);
|
|
}
|
|
+ }
|
|
|
|
- if (!fluid.isEmpty()) {
|
|
- this.nonEmptyBlockCount += i;
|
|
- if (fluid.isRandomlyTicking()) {
|
|
- this.tickingFluidCount += i;
|
|
- }
|
|
+ if (!fluid.isEmpty()) {
|
|
+ this.nonEmptyBlockCount = (short) (this.nonEmptyBlockCount + 1);
|
|
+ if (fluid.isRandomlyTicking()) {
|
|
+ this.tickingFluidCount = (short) (this.tickingFluidCount + 1);
|
|
}
|
|
-
|
|
}
|
|
- }
|
|
|
|
- a a0 = new a();
|
|
-
|
|
- this.states.count(a0);
|
|
- this.nonEmptyBlockCount = (short) a0.nonEmptyBlockCount;
|
|
- this.tickingBlockCount = (short) a0.tickingBlockCount;
|
|
- this.tickingFluidCount = (short) a0.tickingFluidCount;
|
|
+ });
|
|
+ // Paper end
|
|
}
|
|
|
|
public PalettedContainer<BlockState> getStates() {
|
|
diff --git a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
|
|
index 27122a06e172c8d54104c115dfda668a52ff1cde..16fbc633de3a1d9e5e8c65ae107397a6f0e50811 100644
|
|
--- a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
|
|
+++ b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
|
|
@@ -386,6 +386,14 @@ public class PalettedContainer<T> implements PaletteResize<T>, PalettedContainer
|
|
}
|
|
}
|
|
|
|
+ // Paper start
|
|
+ public void forEachLocation(PalettedContainer.CountConsumer<T> consumer) {
|
|
+ this.data.storage.forEach((int location, int data) -> {
|
|
+ consumer.accept(this.data.palette.valueFor(data), location);
|
|
+ });
|
|
+ }
|
|
+ // Paper end
|
|
+
|
|
@FunctionalInterface
|
|
public interface CountConsumer<T> {
|
|
void accept(T object, int count);
|