380 lines
24 KiB
Diff
380 lines
24 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: Sat, 23 Sep 2023 21:36:36 -0700
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Subject: [PATCH] Optimise chunk tick iteration
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When per-player mob spawning is enabled we do not need to randomly
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shuffle the chunk list. Additionally, we can use the NearbyPlayers
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class to quickly retrieve nearby players instead of possible
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searching all players on the server.
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diff --git a/src/main/java/io/papermc/paper/util/player/NearbyPlayers.java b/src/main/java/io/papermc/paper/util/player/NearbyPlayers.java
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index c3ce8a42dddd76b7189ad5685b23f9d9f8ccadb3..f164256d59b761264876ca0c85f812d101bfd5de 100644
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--- a/src/main/java/io/papermc/paper/util/player/NearbyPlayers.java
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+++ b/src/main/java/io/papermc/paper/util/player/NearbyPlayers.java
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@@ -17,7 +17,8 @@ public final class NearbyPlayers {
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GENERAL_SMALL,
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GENERAL_REALLY_SMALL,
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TICK_VIEW_DISTANCE,
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- VIEW_DISTANCE;
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+ VIEW_DISTANCE, // Paper - optimise chunk iteration
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+ SPAWN_RANGE, // Paper - optimise chunk iteration
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}
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private static final NearbyMapType[] MOB_TYPES = NearbyMapType.values();
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@@ -26,10 +27,12 @@ public final class NearbyPlayers {
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private static final int GENERAL_AREA_VIEW_DISTANCE = 33;
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private static final int GENERAL_SMALL_VIEW_DISTANCE = 10;
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private static final int GENERAL_REALLY_SMALL_VIEW_DISTANCE = 3;
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+ private static final int SPAWN_RANGE_VIEW_DISTANCE = net.minecraft.server.level.DistanceManager.MOB_SPAWN_RANGE; // Paper - optimise chunk iteration
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public static final int GENERAL_AREA_VIEW_DISTANCE_BLOCKS = (GENERAL_AREA_VIEW_DISTANCE << 4);
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public static final int GENERAL_SMALL_AREA_VIEW_DISTANCE_BLOCKS = (GENERAL_SMALL_VIEW_DISTANCE << 4);
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public static final int GENERAL_REALLY_SMALL_AREA_VIEW_DISTANCE_BLOCKS = (GENERAL_REALLY_SMALL_VIEW_DISTANCE << 4);
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+ public static final int SPAWN_RANGE_VIEW_DISTANCE_BLOCKS = (SPAWN_RANGE_VIEW_DISTANCE << 4); // Paper - optimise chunk iteration
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private final ServerLevel world;
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private final Reference2ReferenceOpenHashMap<ServerPlayer, TrackedPlayer[]> players = new Reference2ReferenceOpenHashMap<>();
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@@ -80,6 +83,7 @@ public final class NearbyPlayers {
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players[NearbyMapType.GENERAL_REALLY_SMALL.ordinal()].update(chunk.x, chunk.z, GENERAL_REALLY_SMALL_VIEW_DISTANCE);
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players[NearbyMapType.TICK_VIEW_DISTANCE.ordinal()].update(chunk.x, chunk.z, ChunkSystem.getTickViewDistance(player));
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players[NearbyMapType.VIEW_DISTANCE.ordinal()].update(chunk.x, chunk.z, ChunkSystem.getLoadViewDistance(player));
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+ players[NearbyMapType.SPAWN_RANGE.ordinal()].update(chunk.x, chunk.z, SPAWN_RANGE_VIEW_DISTANCE); // Paper - optimise chunk iteration
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}
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public TrackedChunk getChunk(final ChunkPos pos) {
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diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
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index 2b998bdbe49bf8211b755e0eb7c1bf13ac280eab..627a88ec8c3b215b19b55a6d461c8754b4fcd1e8 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
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@@ -79,11 +79,19 @@ public class ChunkHolder {
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// Paper start
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public void onChunkAdd() {
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-
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+ // Paper start - optimise chunk tick iteration
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+ if (this.needsBroadcastChanges()) {
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+ this.chunkMap.needsChangeBroadcasting.add(this);
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+ }
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+ // Paper end - optimise chunk tick iteration
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}
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public void onChunkRemove() {
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-
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+ // Paper start - optimise chunk tick iteration
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+ if (this.needsBroadcastChanges()) {
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+ this.chunkMap.needsChangeBroadcasting.remove(this);
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+ }
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+ // Paper end - optimise chunk tick iteration
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}
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// Paper end
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@@ -230,7 +238,7 @@ public class ChunkHolder {
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if (i < 0 || i >= this.changedBlocksPerSection.length) return; // CraftBukkit - SPIGOT-6086, SPIGOT-6296
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if (this.changedBlocksPerSection[i] == null) {
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- this.hasChangedSections = true;
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+ this.hasChangedSections = true; this.addToBroadcastMap(); // Paper - optimise chunk tick iteration
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this.changedBlocksPerSection[i] = new ShortOpenHashSet();
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}
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@@ -254,6 +262,7 @@ public class ChunkHolder {
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int k = this.lightEngine.getMaxLightSection();
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if (y >= j && y <= k) {
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+ this.addToBroadcastMap(); // Paper - optimise chunk tick iteration
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int l = y - j;
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if (lightType == LightLayer.SKY) {
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@@ -268,8 +277,19 @@ public class ChunkHolder {
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}
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}
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+ // Paper start - optimise chunk tick iteration
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+ public final boolean needsBroadcastChanges() {
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+ return this.hasChangedSections || !this.skyChangedLightSectionFilter.isEmpty() || !this.blockChangedLightSectionFilter.isEmpty();
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+ }
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+
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+ private void addToBroadcastMap() {
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+ io.papermc.paper.util.TickThread.ensureTickThread(this.chunkMap.level, this.pos, "Asynchronous ChunkHolder update is not allowed");
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+ this.chunkMap.needsChangeBroadcasting.add(this);
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+ }
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+ // Paper end - optimise chunk tick iteration
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+
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public void broadcastChanges(LevelChunk chunk) {
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- if (this.hasChangedSections || !this.skyChangedLightSectionFilter.isEmpty() || !this.blockChangedLightSectionFilter.isEmpty()) {
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+ if (this.needsBroadcastChanges()) { // Paper - optimise chunk tick iteration; moved into above, other logic needs to call
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Level world = chunk.getLevel();
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List list;
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 284f9548d62f9230c668bb1adb8cb8084b7cef7c..12109446fc76a39faee6cda042ca48b3fd3809f4 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -191,6 +191,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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this.playerEntityTrackerTrackMaps[i].remove(player);
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}
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// Paper end - use distance map to optimise tracker
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+ this.playerMobSpawnMap.remove(player); // Paper - optimise chunk tick iteration
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}
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void updateMaps(ServerPlayer player) {
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@@ -240,6 +241,10 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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}
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public final io.papermc.paper.util.player.NearbyPlayers nearbyPlayers;
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// Paper end
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+ // Paper start - optimise chunk tick iteration
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+ public final it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet<ChunkHolder> needsChangeBroadcasting = new it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet<>();
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+ public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobSpawnMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets);
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+ // Paper end - optimise chunk tick iteration
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public ChunkMap(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor executor, BlockableEventLoop<Runnable> mainThreadExecutor, LightChunkGetter chunkProvider, ChunkGenerator chunkGenerator, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier<DimensionDataStorage> persistentStateManagerFactory, int viewDistance, boolean dsync) {
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super(session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync);
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@@ -408,7 +413,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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}
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// Paper end - Optional per player mob spawns
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- private static double euclideanDistanceSquared(ChunkPos pos, Entity entity) {
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+ public static double euclideanDistanceSquared(ChunkPos pos, Entity entity) { // Paper - optimise chunk iteration; public
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double d0 = (double) SectionPos.sectionToBlockCoord(pos.x, 8);
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double d1 = (double) SectionPos.sectionToBlockCoord(pos.z, 8);
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double d2 = d0 - entity.getX();
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diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
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index c80a625f7289e3bb33c6851d2072957e153ca1fb..7c425ac50c83757b66a2178bc19d4c920b82f12f 100644
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--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
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+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
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@@ -50,7 +50,7 @@ public abstract class DistanceManager {
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private static final int INITIAL_TICKET_LIST_CAPACITY = 4;
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final Long2ObjectMap<ObjectSet<ServerPlayer>> playersPerChunk = new Long2ObjectOpenHashMap();
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// Paper - rewrite chunk system
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- private final DistanceManager.FixedPlayerDistanceChunkTracker naturalSpawnChunkCounter = new DistanceManager.FixedPlayerDistanceChunkTracker(8);
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+ public static final int MOB_SPAWN_RANGE = 8; //private final DistanceManager.FixedPlayerDistanceChunkTracker naturalSpawnChunkCounter = new DistanceManager.FixedPlayerDistanceChunkTracker(8); // Paper - optimise chunk tick iteration
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// Paper - rewrite chunk system
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private final ChunkMap chunkMap; // Paper
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@@ -135,7 +135,7 @@ public abstract class DistanceManager {
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long i = chunkcoordintpair.toLong();
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// Paper - no longer used
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- this.naturalSpawnChunkCounter.update(i, 0, true);
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+ //this.naturalSpawnChunkCounter.update(i, 0, true); // Paper - optimise chunk tick iteration
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//this.playerTicketManager.update(i, 0, true); // Paper - no longer used
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//this.tickingTicketsTracker.addTicket(TicketType.PLAYER, chunkcoordintpair, this.getPlayerTicketLevel(), chunkcoordintpair); // Paper - no longer used
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}
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@@ -149,7 +149,7 @@ public abstract class DistanceManager {
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if (objectset != null) objectset.remove(player); // Paper - some state corruption happens here, don't crash, clean up gracefully
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if (objectset == null || objectset.isEmpty()) { // Paper
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this.playersPerChunk.remove(i);
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- this.naturalSpawnChunkCounter.update(i, Integer.MAX_VALUE, false);
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+ //this.naturalSpawnChunkCounter.update(i, Integer.MAX_VALUE, false); // Paper - optimise chunk tick iteration
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//this.playerTicketManager.update(i, Integer.MAX_VALUE, false); // Paper - no longer used
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//this.tickingTicketsTracker.removeTicket(TicketType.PLAYER, chunkcoordintpair, this.getPlayerTicketLevel(), chunkcoordintpair); // Paper - no longer used
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}
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@@ -191,13 +191,11 @@ public abstract class DistanceManager {
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}
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public int getNaturalSpawnChunkCount() {
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- this.naturalSpawnChunkCounter.runAllUpdates();
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- return this.naturalSpawnChunkCounter.chunks.size();
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+ return this.chunkMap.playerMobSpawnMap.size(); // Paper - optimise chunk tick iteration
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}
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public boolean hasPlayersNearby(long chunkPos) {
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- this.naturalSpawnChunkCounter.runAllUpdates();
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- return this.naturalSpawnChunkCounter.chunks.containsKey(chunkPos);
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+ return this.chunkMap.playerMobSpawnMap.getObjectsInRange(chunkPos) != null; // Paper - optimise chunk tick iteration
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}
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public String getDebugStatus() {
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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 2b33a3d8fdb86024acb2a3ee9d0a4a7dd4989c98..366c0c9b45a819f7f94ebe3e49b8ab7f9edf9ce7 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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@@ -508,18 +508,10 @@ public class ServerChunkCache extends ChunkSource {
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gameprofilerfiller.push("pollingChunks");
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gameprofilerfiller.push("filteringLoadedChunks");
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- List<ServerChunkCache.ChunkAndHolder> list = Lists.newArrayListWithCapacity(this.chunkMap.size());
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- Iterator iterator = this.chunkMap.getChunks().iterator();
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+ // Paper - optimise chunk tick iteration
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if (this.level.getServer().tickRateManager().runsNormally()) this.level.timings.chunkTicks.startTiming(); // Paper
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- while (iterator.hasNext()) {
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- ChunkHolder playerchunk = (ChunkHolder) iterator.next();
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- LevelChunk chunk = playerchunk.getTickingChunk();
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-
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- if (chunk != null) {
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- list.add(new ServerChunkCache.ChunkAndHolder(chunk, playerchunk));
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- }
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- }
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+ // Paper - optimise chunk tick iteration
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if (this.level.getServer().tickRateManager().runsNormally()) {
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gameprofilerfiller.popPush("naturalSpawnCount");
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@@ -554,38 +546,109 @@ public class ServerChunkCache extends ChunkSource {
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gameprofilerfiller.popPush("spawnAndTick");
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boolean flag = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && !this.level.players().isEmpty(); // CraftBukkit
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- Util.shuffle(list, this.level.random);
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- // Paper start - PlayerNaturallySpawnCreaturesEvent
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- int chunkRange = level.spigotConfig.mobSpawnRange;
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- chunkRange = (chunkRange > level.spigotConfig.viewDistance) ? (byte) level.spigotConfig.viewDistance : chunkRange;
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- chunkRange = Math.min(chunkRange, 8);
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- for (ServerPlayer entityPlayer : this.level.players()) {
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- entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange);
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- entityPlayer.playerNaturallySpawnedEvent.callEvent();
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+ // Paper start - optimise chunk tick iteration
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+ ChunkMap playerChunkMap = this.chunkMap;
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+ for (ServerPlayer player : this.level.players) {
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+ if (!player.affectsSpawning || player.isSpectator()) {
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+ playerChunkMap.playerMobSpawnMap.remove(player);
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+ player.playerNaturallySpawnedEvent = null;
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+ player.lastEntitySpawnRadiusSquared = -1.0;
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+ continue;
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+ }
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+
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+ int viewDistance = io.papermc.paper.chunk.system.ChunkSystem.getTickViewDistance(player);
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+
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+ // copied and modified from isOutisdeRange
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+ int chunkRange = (int)level.spigotConfig.mobSpawnRange;
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+ chunkRange = (chunkRange > viewDistance) ? viewDistance : chunkRange;
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+ chunkRange = (chunkRange > DistanceManager.MOB_SPAWN_RANGE) ? DistanceManager.MOB_SPAWN_RANGE : chunkRange;
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+
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+ com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(player.getBukkitEntity(), (byte)chunkRange);
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+ event.callEvent();
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+ if (event.isCancelled() || event.getSpawnRadius() < 0) {
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+ playerChunkMap.playerMobSpawnMap.remove(player);
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+ player.playerNaturallySpawnedEvent = null;
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+ player.lastEntitySpawnRadiusSquared = -1.0;
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+ continue;
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+ }
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+
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+ int range = Math.min(event.getSpawnRadius(), DistanceManager.MOB_SPAWN_RANGE); // limit to max spawn range
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+ int chunkX = io.papermc.paper.util.CoordinateUtils.getChunkCoordinate(player.getX());
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+ int chunkZ = io.papermc.paper.util.CoordinateUtils.getChunkCoordinate(player.getZ());
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+
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+ playerChunkMap.playerMobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range);
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+ player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in anyPlayerCloseEnoughForSpawning
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+ player.playerNaturallySpawnedEvent = event;
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}
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- // Paper end - PlayerNaturallySpawnCreaturesEvent
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+ // Paper end - optimise chunk tick iteration
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int l = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING);
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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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+ // Paper - optimise chunk tick iteration
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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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+ // Paper start - optimise chunk tick iteration
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+ io.papermc.paper.util.player.NearbyPlayers nearbyPlayers = this.chunkMap.getNearbyPlayers(); // Paper - optimise chunk tick iteration
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+ Iterator<LevelChunk> chunkIterator;
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+ if (this.level.paperConfig().entities.spawning.perPlayerMobSpawns) {
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+ chunkIterator = this.tickingChunks.iterator();
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+ } else {
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+ chunkIterator = this.tickingChunks.unsafeIterator();
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+ List<LevelChunk> shuffled = Lists.newArrayListWithCapacity(this.tickingChunks.size());
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+ while (chunkIterator.hasNext()) {
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+ shuffled.add(chunkIterator.next());
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+ }
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+ Util.shuffle(shuffled, this.level.random);
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+ chunkIterator = shuffled.iterator();
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+ }
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+ try {
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+ // Paper end - optimise chunk tick iteration
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+ while (chunkIterator.hasNext()) {
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+ LevelChunk chunk1 = chunkIterator.next();
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+ // Paper end - optimise chunk tick iteration
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ChunkPos chunkcoordintpair = chunk1.getPos();
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- if (this.level.isNaturalSpawningAllowed(chunkcoordintpair) && this.chunkMap.anyPlayerCloseEnoughForSpawning(chunkcoordintpair)) {
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+ // Paper start - optimise chunk tick iteration
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+ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> playersNearby
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+ = nearbyPlayers.getPlayers(chunkcoordintpair, io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.SPAWN_RANGE);
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+ if (playersNearby == null) {
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+ continue;
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+ }
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+ Object[] rawData = playersNearby.getRawData();
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+ boolean spawn = false;
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+ boolean tick = false;
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+ for (int itr = 0, len = playersNearby.size(); itr < len; ++itr) {
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+ ServerPlayer player = (ServerPlayer)rawData[itr];
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+ if (player.isSpectator()) {
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+ continue;
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+ }
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+
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+ double distance = ChunkMap.euclideanDistanceSquared(chunkcoordintpair, player);
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+ spawn |= player.lastEntitySpawnRadiusSquared >= distance;
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+ tick |= ((double)io.papermc.paper.util.player.NearbyPlayers.SPAWN_RANGE_VIEW_DISTANCE_BLOCKS) * ((double)io.papermc.paper.util.player.NearbyPlayers.SPAWN_RANGE_VIEW_DISTANCE_BLOCKS) >= distance;
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+ if (spawn & tick) {
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+ break;
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+ }
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+ }
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+ if (tick && chunk1.chunkStatus.isOrAfter(net.minecraft.server.level.FullChunkStatus.ENTITY_TICKING)) {
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+ // Paper end - optimise chunk tick iteration
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chunk1.incrementInhabitedTime(j);
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- if (flag && (this.spawnEnemies || this.spawnFriendlies) && this.level.getWorldBorder().isWithinBounds(chunkcoordintpair) && this.chunkMap.anyPlayerCloseEnoughForSpawning(chunkcoordintpair, true)) { // Spigot
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+ if (spawn && flag && (this.spawnEnemies || this.spawnFriendlies) && this.level.getWorldBorder().isWithinBounds(chunkcoordintpair)) { // Spigot // Paper - optimise chunk tick iteration
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NaturalSpawner.spawnForChunk(this.level, chunk1, spawnercreature_d, this.spawnFriendlies, this.spawnEnemies, flag1);
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}
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- if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) {
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+ if (true || this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) { // Paper - optimise chunk tick iteration
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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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+ // Paper start - optimise chunk tick iteration
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+ } finally {
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+ if (chunkIterator instanceof io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.Iterator safeIterator) {
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+ safeIterator.finishedIterating();
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+ }
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+ }
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+ // Paper end - optimise chunk tick iteration
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this.level.timings.chunkTicks.stopTiming(); // Paper
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gameprofilerfiller.popPush("customSpawners");
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@@ -597,11 +660,23 @@ public class ServerChunkCache extends ChunkSource {
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}
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gameprofilerfiller.popPush("broadcast");
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- list.forEach((chunkproviderserver_a1) -> {
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+ // Paper - optimise chunk tick iteration
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this.level.timings.broadcastChunkUpdates.startTiming(); // Paper - timing
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- chunkproviderserver_a1.holder.broadcastChanges(chunkproviderserver_a1.chunk);
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+ // Paper start - optimise chunk tick iteration
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+ if (!this.chunkMap.needsChangeBroadcasting.isEmpty()) {
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+ it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet<ChunkHolder> copy = this.chunkMap.needsChangeBroadcasting.clone();
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+ this.chunkMap.needsChangeBroadcasting.clear();
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+ for (ChunkHolder holder : copy) {
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+ holder.broadcastChanges(holder.getFullChunkNowUnchecked()); // LevelChunks are NEVER unloaded
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+ if (holder.needsBroadcastChanges()) {
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+ // I DON'T want to KNOW what DUMB plugins might be doing.
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+ this.chunkMap.needsChangeBroadcasting.add(holder);
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+ }
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+ }
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+ }
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+ // Paper end - optimise chunk tick iteration
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this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
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- });
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+ // Paper - optimise chunk tick iteration
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gameprofilerfiller.pop();
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gameprofilerfiller.pop();
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}
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index 17a6d43685f35a6978c2d941876a1f8a9a2c8b42..b3781efbd3edcf102fe1bda5d6149915dc1127c6 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -325,6 +325,9 @@ public class ServerPlayer extends Player {
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});
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}
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// Paper end - replace player chunk loader
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+ // Paper start - optimise chunk tick iteration
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+ public double lastEntitySpawnRadiusSquared = -1.0;
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+ // Paper end - optimise chunk tick iteration
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public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile, ClientInformation clientOptions) {
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super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile);
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