Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-21 05:50:05 +01:00
251 Zeilen
10 KiB
Diff
251 Zeilen
10 KiB
Diff
From 6a23a851deddbd06d8dbde1734d8ebd1644fb666 Mon Sep 17 00:00:00 2001
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From: Byteflux <byte@byteflux.net>
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Date: Wed, 2 Mar 2016 00:52:31 -0600
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Subject: [PATCH] Lighting Queue
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This provides option to queue lighting updates to ensure they do not cause the server lag
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diff --git a/src/main/java/co/aikar/timings/WorldTimingsHandler.java b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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index 145cb274b..eff9dcf54 100644
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--- a/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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+++ b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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@@ -50,6 +50,8 @@ public class WorldTimingsHandler {
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public final Timing worldSaveLevel;
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public final Timing chunkSaveData;
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+ public final Timing lightingQueueTimer;
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+
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public WorldTimingsHandler(World server) {
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String name = server.worldData.getName() +" - ";
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@@ -96,6 +98,8 @@ public class WorldTimingsHandler {
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tracker2 = Timings.ofSafe(name + "tracker stage 2");
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doTick = Timings.ofSafe(name + "doTick");
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tickEntities = Timings.ofSafe(name + "tickEntities");
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+
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+ lightingQueueTimer = Timings.ofSafe(name + "Lighting Queue");
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}
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public static Timing getTickList(WorldServer worldserver, String timingsType) {
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index a340866f3..1e3405cc1 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -129,4 +129,10 @@ public class PaperWorldConfig {
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netherVoidTopDamage = getBoolean( "nether-ceiling-void-damage", false );
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log("Top of the nether void damage: " + netherVoidTopDamage);
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}
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+
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+ public boolean queueLightUpdates;
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+ private void queueLightUpdates() {
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+ queueLightUpdates = getBoolean("queue-light-updates", false);
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+ log("Lighting Queue enabled: " + queueLightUpdates);
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index 091a53371..d46578b3e 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -91,6 +91,7 @@ public class Chunk implements IChunkAccess {
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return removed;
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}
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}
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+ final PaperLightingQueue.LightingQueue lightingQueue = new PaperLightingQueue.LightingQueue(this);
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// Paper end
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public boolean areNeighborsLoaded(final int radius) {
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switch (radius) {
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@@ -281,6 +282,13 @@ public class Chunk implements IChunkAccess {
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private void g(boolean flag) {
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this.world.methodProfiler.a("recheckGaps");
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if (this.world.areChunksLoaded(new BlockPosition(this.locX * 16 + 8, 0, this.locZ * 16 + 8), 16)) {
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+ this.runOrQueueLightUpdate(() -> recheckGaps(flag)); // Paper - Queue light update
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+ }
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+ }
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+
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+ private void recheckGaps(boolean flag) {
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+ if (true) {
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+ // Paper end
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for (int i = 0; i < 16; ++i) {
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for (int j = 0; j < 16; ++j) {
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if (this.h[i + j * 16]) {
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@@ -524,6 +532,7 @@ public class Chunk implements IChunkAccess {
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if (flag1) {
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this.initLighting();
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} else {
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+ this.runOrQueueLightUpdate(() -> { // Paper - Queue light update
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int i1 = iblockdata.b(this.world, blockposition);
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int j1 = iblockdata1.b(this.world, blockposition);
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@@ -531,6 +540,7 @@ public class Chunk implements IChunkAccess {
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if (i1 != j1 && (i1 < j1 || this.getBrightness(EnumSkyBlock.SKY, blockposition) > 0 || this.getBrightness(EnumSkyBlock.BLOCK, blockposition) > 0)) {
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this.c(i, k);
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}
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+ }); // Paper
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}
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TileEntity tileentity;
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@@ -1290,6 +1300,16 @@ public class Chunk implements IChunkAccess {
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return this.E == 8;
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}
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+ // Paper start
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+ public void runOrQueueLightUpdate(Runnable runnable) {
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+ if (this.world.paperConfig.queueLightUpdates) {
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+ lightingQueue.add(runnable);
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+ } else {
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+ runnable.run();
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+ }
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+ }
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+ // Paper end
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+
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public static enum EnumTileEntityState {
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IMMEDIATE, QUEUED, CHECK;
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diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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index d23f4e80c..48b484da1 100644
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--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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@@ -322,6 +322,7 @@ public class ChunkProviderServer implements IChunkProvider {
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return false;
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}
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save = event.isSaveChunk();
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+ chunk.lightingQueue.processUnload(); // Paper
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// Update neighbor counts
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for (int x = -2; x < 3; x++) {
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index ae17796ce..1ac8d61cd 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -864,7 +864,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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protected void v() {
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co.aikar.timings.TimingsManager.FULL_SERVER_TICK.startTiming(); // Paper
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this.slackActivityAccountant.tickStarted(); // Spigot
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- long i = SystemUtils.c();
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+ long i = SystemUtils.c(); long startTime = i; // Paper
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++this.ticks;
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if (this.S) {
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@@ -922,6 +922,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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this.methodProfiler.e();
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this.methodProfiler.e();
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org.spigotmc.WatchdogThread.tick(); // Spigot
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+ PaperLightingQueue.processQueue(startTime); // Paper
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this.slackActivityAccountant.tickEnded(l); // Spigot
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co.aikar.timings.TimingsManager.FULL_SERVER_TICK.stopTiming(); // Paper
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}
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diff --git a/src/main/java/net/minecraft/server/PaperLightingQueue.java b/src/main/java/net/minecraft/server/PaperLightingQueue.java
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new file mode 100644
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index 000000000..345cd5824
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/PaperLightingQueue.java
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@@ -0,0 +1,92 @@
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+package net.minecraft.server;
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+
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+import co.aikar.timings.Timing;
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+import it.unimi.dsi.fastutil.objects.ObjectCollection;
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+
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+import java.util.ArrayDeque;
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+
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+class PaperLightingQueue {
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+ private static final long MAX_TIME = (long) (1000000000 / 20 * .95);
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+ private static int updatesThisTick;
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+
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+
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+ static void processQueue(long curTime) {
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+ updatesThisTick = 0;
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+
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+ final long startTime = System.nanoTime();
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+ final long maxTickTime = MAX_TIME - (startTime - curTime);
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+
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+ START:
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+ for (World world : MinecraftServer.getServer().worlds) {
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+ if (!world.paperConfig.queueLightUpdates) {
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+ continue;
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+ }
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+
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+ ObjectCollection<Chunk> loadedChunks = ((WorldServer) world).getChunkProviderServer().chunks.values();
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+ for (Chunk chunk : loadedChunks.toArray(new Chunk[loadedChunks.size()])) {
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+ if (chunk.lightingQueue.processQueue(startTime, maxTickTime)) {
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+ break START;
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+ }
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+ }
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+ }
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+ }
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+
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+ static class LightingQueue extends ArrayDeque<Runnable> {
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+ final private Chunk chunk;
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+
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+ LightingQueue(Chunk chunk) {
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+ super();
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+ this.chunk = chunk;
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+ }
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+
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+ /**
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+ * Processes the lighting queue for this chunk
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+ *
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+ * @param startTime If start Time is 0, we will not limit execution time
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+ * @param maxTickTime Maximum time to spend processing lighting updates
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+ * @return true to abort processing furthur lighting updates
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+ */
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+ private boolean processQueue(long startTime, long maxTickTime) {
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+ if (this.isEmpty()) {
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+ return false;
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+ }
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+ try (Timing ignored = chunk.world.timings.lightingQueueTimer.startTiming()) {
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+ Runnable lightUpdate;
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+ while ((lightUpdate = this.poll()) != null) {
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+ lightUpdate.run();
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+ if (startTime > 0 && ++PaperLightingQueue.updatesThisTick % 10 == 0 && PaperLightingQueue.updatesThisTick > 10) {
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+ if (System.nanoTime() - startTime > maxTickTime) {
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+ return true;
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+ }
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+ }
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+ }
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+ }
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+
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+ return false;
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+ }
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+
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+ /**
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+ * Flushes lighting updates to unload the chunk
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+ */
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+ void processUnload() {
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+ if (!chunk.world.paperConfig.queueLightUpdates) {
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+ return;
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+ }
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+ processQueue(0, 0); // No timeout
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+
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+ final int radius = 1; // TODO: bitflip, why should this ever be 2?
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+ for (int x = chunk.locX - radius; x <= chunk.locX + radius; ++x) {
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+ for (int z = chunk.locZ - radius; z <= chunk.locZ + radius; ++z) {
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+ if (x == chunk.locX && z == chunk.locZ) {
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+ continue;
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+ }
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+
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+ Chunk neighbor = MCUtil.getLoadedChunkWithoutMarkingActive(chunk.world, x, z);
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+ if (neighbor != null) {
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+ neighbor.lightingQueue.processQueue(0, 0); // No timeout
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+ }
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+ }
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+ }
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+ }
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index bfe09a205..c40ecbc0c 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -325,7 +325,7 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose
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if (iblockdata2.b(this, blockposition) != iblockdata1.b(this, blockposition) || iblockdata2.e() != iblockdata1.e()) {
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this.methodProfiler.a("checkLight");
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- this.r(blockposition);
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+ chunk.runOrQueueLightUpdate(() -> this.r(blockposition)); // Paper - Queue light update
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this.methodProfiler.e();
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}
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--
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2.18.0
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