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7c2dc4b342
* finish implementing all adventure components in codecs * add some initial tests * Add round trip tests for text and translatable components * Add more round trip test data (score component is failing) * Add more round trip test data * Fix SCORE_COMPONENT_MAP_CODEC * Improve test failure messages * Add failure cases * Add a couple more test data * Make use of AdventureCodecs * Update patches after rebase * Squash changes into adventure patch * Fix AT formatting * update comment --------- Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
176 lines
9.1 KiB
Diff
176 lines
9.1 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: Mon, 6 Apr 2020 04:20:44 -0700
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Subject: [PATCH] Execute chunk tasks mid-tick
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This will help the server load chunks if tick times are high.
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diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
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index 6b3cde6d4d1e63bec01f502f2027ee9fddac08aa..46449728f69ee7d4f78470f8da23c055acd53a3b 100644
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--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
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+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
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@@ -48,6 +48,8 @@ public final class MinecraftTimings {
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public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
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public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
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+ public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
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+
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private static final Map<Class<?>, String> taskNameCache = new MapMaker().weakKeys().makeMap();
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private MinecraftTimings() {}
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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 6f17e5631aace53f75e6badf514dbb77c50065b9..0a23cfeaba071c2179de1931caa86bc46462c338 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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@@ -1347,8 +1347,79 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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return flag;
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}
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+ // Paper start - execute chunk tasks mid tick
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+ static final long CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME = 25L * 1000L; // 25us
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+ static final long MAX_CHUNK_EXEC_TIME = 1000L; // 1us
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+
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+ static final long TASK_EXECUTION_FAILURE_BACKOFF = 5L * 1000L; // 5us
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+
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+ private static long lastMidTickExecute;
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+ private static long lastMidTickExecuteFailure;
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+
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+ private boolean tickMidTickTasks() {
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+ // give all worlds a fair chance at by targetting them all.
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+ // if we execute too many tasks, that's fine - we have logic to correctly handle overuse of allocated time.
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+ boolean executed = false;
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+ for (ServerLevel world : this.getAllLevels()) {
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+ long currTime = System.nanoTime();
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+ if (currTime - world.lastMidTickExecuteFailure <= TASK_EXECUTION_FAILURE_BACKOFF) {
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+ continue;
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+ }
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+ if (!world.getChunkSource().pollTask()) {
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+ // we need to back off if this fails
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+ world.lastMidTickExecuteFailure = currTime;
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+ } else {
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+ executed = true;
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+ }
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+ }
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+
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+ return executed;
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+ }
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+
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+ public final void executeMidTickTasks() {
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+ org.spigotmc.AsyncCatcher.catchOp("mid tick chunk task execution");
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+ long startTime = System.nanoTime();
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+ if ((startTime - lastMidTickExecute) <= CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME || (startTime - lastMidTickExecuteFailure) <= TASK_EXECUTION_FAILURE_BACKOFF) {
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+ // it's shown to be bad to constantly hit the queue (chunk loads slow to a crawl), even if no tasks are executed.
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+ // so, backoff to prevent this
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+ return;
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+ }
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+
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+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.startTiming();
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+ try {
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+ for (;;) {
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+ boolean moreTasks = this.tickMidTickTasks();
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+ long currTime = System.nanoTime();
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+ long diff = currTime - startTime;
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+
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+ if (!moreTasks || diff >= MAX_CHUNK_EXEC_TIME) {
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+ if (!moreTasks) {
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+ lastMidTickExecuteFailure = currTime;
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+ }
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+
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+ // note: negative values reduce the time
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+ long overuse = diff - MAX_CHUNK_EXEC_TIME;
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+ if (overuse >= (10L * 1000L * 1000L)) { // 10ms
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+ // make sure something like a GC or dumb plugin doesn't screw us over...
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+ overuse = 10L * 1000L * 1000L; // 10ms
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+ }
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+
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+ double overuseCount = (double)overuse/(double)MAX_CHUNK_EXEC_TIME;
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+ long extraSleep = (long)Math.round(overuseCount*CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME);
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+
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+ lastMidTickExecute = currTime + extraSleep;
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+ return;
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+ }
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+ }
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+ } finally {
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+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.stopTiming();
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+ }
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+ }
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+ // Paper end - execute chunk tasks mid tick
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+
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private boolean pollTaskInternal() {
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if (super.pollTask()) {
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+ this.executeMidTickTasks(); // Paper - execute chunk tasks mid tick
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return true;
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} else {
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if (this.tickRateManager.isSprinting() || this.haveTime()) {
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diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index 63fad53a9184d7ab97f143b7d85ae9ef2ca9f8bc..1483007b79e18107e41037c279e048f04f666d1d 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -566,6 +566,7 @@ public class ServerChunkCache extends ChunkSource {
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boolean flag1 = this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && this.level.getLevelData().getGameTime() % this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit
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Iterator iterator1 = list.iterator();
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+ int chunksTicked = 0; // Paper
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while (iterator1.hasNext()) {
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ServerChunkCache.ChunkAndHolder chunkproviderserver_a = (ServerChunkCache.ChunkAndHolder) iterator1.next();
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LevelChunk chunk1 = chunkproviderserver_a.chunk;
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@@ -579,6 +580,7 @@ public class ServerChunkCache extends ChunkSource {
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if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) {
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this.level.tickChunk(chunk1, l);
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+ if ((chunksTicked++ & 1) == 0) net.minecraft.server.MinecraftServer.getServer().executeMidTickTasks(); // Paper
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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/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index e2b22b51a8c6d668eaa6572de16bb7a76351d0d3..716420eb3dea5a9b6d8e72d0bdf388dc37677032 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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@@ -217,6 +217,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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private final StructureCheck structureCheck;
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private final boolean tickTime;
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private final RandomSequences randomSequences;
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+ public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick
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// CraftBukkit start
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public final LevelStorageSource.LevelStorageAccess convertable;
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@@ -1206,6 +1207,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (fluid1.is(fluid)) {
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fluid1.tick(this, pos);
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}
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
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}
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@@ -1215,6 +1217,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (iblockdata.is(block)) {
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iblockdata.tick(this, pos, this.random);
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}
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
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}
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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 db92c938803155ed59a1913d287a352fad351e9d..526ed13d199c0469cc68efb57dad0ccf40317c0c 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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@@ -929,6 +929,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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// Spigot end
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} else if (flag && this.shouldTickBlocksAt(tickingblockentity.getPos())) {
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tickingblockentity.tick();
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+ // Paper start - execute chunk tasks during tick
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+ if ((this.tileTickPosition & 7) == 0) {
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+ MinecraftServer.getServer().executeMidTickTasks();
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+ }
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+ // Paper end - execute chunk tasks during tick
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}
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}
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this.blockEntityTickers.removeAll(toRemove);
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@@ -943,6 +948,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public <T extends Entity> void guardEntityTick(Consumer<T> tickConsumer, T entity) {
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try {
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tickConsumer.accept(entity);
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - execute chunk tasks mid tick
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} catch (Throwable throwable) {
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if (throwable instanceof ThreadDeath) throw throwable; // Paper
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// Paper start - Prevent tile entity and entity crashes
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