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4768e3c4ed
Paper/Spigot-Server-Patches/0469-No-Tick-view-distance-implementation.patch
Aikar 4768e3c4ed
Optimize Loaded Chunks Cache Lookups 
Reduces number of instructions a chunk lookup does
when accessing the last chunk cache. This reduces amount of work and opcodes
and allows better inlining.

In lots of profiling comparisons, this optimization was able to reduce the
cost of repeated chunk lookups that hit the cache pretty significantly.
2021-01-09 18:09:09 -05:00

687 Zeilen
40 KiB
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Originalformat Blame Verlauf

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Tue, 5 May 2020 21:23:34 -0700
Subject: [PATCH] No-Tick view distance implementation
Implements world view distance getters/setters
Per-Player is absent due to difficulty of maintaining
the diff required to make it happen.
diff --git a/src/main/java/co/aikar/timings/TimingsExport.java b/src/main/java/co/aikar/timings/TimingsExport.java
index c9164dfdb27ddf3709129c8aec54903a1df121ff..e33e889c291d37a821a4fbd40d9aac7bb079de0d 100644
--- a/src/main/java/co/aikar/timings/TimingsExport.java
+++ b/src/main/java/co/aikar/timings/TimingsExport.java
@@ -153,7 +153,8 @@ public class TimingsExport extends Thread {
pair("gamerules", toObjectMapper(world.getWorld().getGameRules(), rule -> {
return pair(rule, world.getWorld().getGameRuleValue(rule));
})),
- pair("ticking-distance", world.getChunkProvider().playerChunkMap.getEffectiveViewDistance())
+ pair("ticking-distance", world.getChunkProvider().playerChunkMap.getEffectiveViewDistance()),
+ pair("notick-viewdistance", world.getChunkProvider().playerChunkMap.getEffectiveNoTickViewDistance())
));
}));
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 670737120d1b2f82a1f73e6ad1b1fda3b121d9a9..d7fcf451e22215f1bfe5cfec456c890ede0d5a08 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -630,4 +630,9 @@ public class PaperWorldConfig {
phantomIgnoreCreative = getBoolean("phantoms-do-not-spawn-on-creative-players", phantomIgnoreCreative);
phantomOnlyAttackInsomniacs = getBoolean("phantoms-only-attack-insomniacs", phantomOnlyAttackInsomniacs);
}
+
+ public int noTickViewDistance;
+ private void viewDistance() {
+ this.noTickViewDistance = this.getInt("viewdistances.no-tick-view-distance", -1);
+ }
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 8e91a0270a7a72f09dfc86331a788765de1f9f5e..544f4a473d1453e029111bea45483543e3bcbabb 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -202,7 +202,51 @@ public class Chunk implements IChunkAccess {
}
protected void onNeighbourChange(final long bitsetBefore, final long bitsetAfter) {
+ // Paper start - no-tick view distance
+ ChunkProviderServer chunkProviderServer = ((WorldServer)this.world).getChunkProvider();
+ PlayerChunkMap chunkMap = chunkProviderServer.playerChunkMap;
+ // this code handles the addition of ticking tickets - the distance map handles the removal
+ if (!areNeighboursLoaded(bitsetBefore, 2) && areNeighboursLoaded(bitsetAfter, 2)) {
+ if (chunkMap.playerViewDistanceTickMap.getObjectsInRange(this.coordinateKey) != null) {
+ // now we're ready for entity ticking
+ chunkProviderServer.serverThreadQueue.execute(() -> {
+ // double check that this condition still holds.
+ if (Chunk.this.areNeighboursLoaded(2) && chunkMap.playerViewDistanceTickMap.getObjectsInRange(Chunk.this.coordinateKey) != null) {
+ chunkProviderServer.addTicketAtLevel(TicketType.PLAYER, Chunk.this.loc, 31, Chunk.this.loc); // 31 -> entity ticking, TODO check on update
+ }
+ });
+ }
+ }
+ // this code handles the chunk sending
+ if (!areNeighboursLoaded(bitsetBefore, 1) && areNeighboursLoaded(bitsetAfter, 1)) {
+ if (chunkMap.playerViewDistanceBroadcastMap.getObjectsInRange(this.coordinateKey) != null) {
+ // now we're ready to send
+ chunkMap.mailboxMain.a(ChunkTaskQueueSorter.a(chunkMap.getUpdatingChunk(this.coordinateKey), (() -> { // Copied frm PlayerChunkMap
+ // double check that this condition still holds.
+ if (!Chunk.this.areNeighboursLoaded(1)) {
+ return;
+ }
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> inRange = chunkMap.playerViewDistanceBroadcastMap.getObjectsInRange(Chunk.this.coordinateKey);
+ if (inRange == null) {
+ return;
+ }
+
+ // broadcast
+ Object[] backingSet = inRange.getBackingSet();
+ Packet[] chunkPackets = new Packet[2];
+ for (int index = 0, len = backingSet.length; index < len; ++index) {
+ Object temp = backingSet[index];
+ if (!(temp instanceof EntityPlayer)) {
+ continue;
+ }
+ EntityPlayer player = (EntityPlayer)temp;
+ chunkMap.sendChunk(player, chunkPackets, Chunk.this);
+ }
+ })));
+ }
+ }
+ // Paper end - no-tick view distance
}
public final boolean isAnyNeighborsLoaded() {
@@ -1089,7 +1133,7 @@ public class Chunk implements IChunkAccess {
IBlockData iblockdata = this.getType(blockposition);
IBlockData iblockdata1 = Block.b(iblockdata, (GeneratorAccess) this.world, blockposition);
- this.world.setTypeAndData(blockposition, iblockdata1, 20);
+ this.world.setTypeAndData(blockposition, iblockdata1, 20 | 2); // Paper - We send chunks before they're ticking ready, so we need to notify here
}
this.n[i].clear();
diff --git a/src/main/java/net/minecraft/server/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java
index ef61f8e784b7ebd26293d627e8b8e1aef1be6e21..03b1a67aaf3ed75b7669a3157847affd678f8df4 100644
--- a/src/main/java/net/minecraft/server/ChunkMapDistance.java
+++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java
@@ -262,7 +262,7 @@ public abstract class ChunkMapDistance {
return s;
}
- protected void a(int i) {
+ protected void setNoTickViewDistance(int i) { // Paper - force abi breakage on usage change
this.g.a(i);
}
@@ -381,7 +381,7 @@ public abstract class ChunkMapDistance {
private void a(long i, int j, boolean flag, boolean flag1) {
if (flag != flag1) {
- Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, ChunkMapDistance.b, new ChunkCoordIntPair(i));
+ Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, new ChunkCoordIntPair(i)); // Paper - no-tick view distance
if (flag1) {
ChunkMapDistance.this.j.a(ChunkTaskQueueSorter.a(() -> {
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 38b80b72a583b5d99ad9768d41a4ecfb504fb5f2..59554edff841a09e74465ff1101d09d049ea9b7e 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -119,6 +119,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks
+ boolean needsChunkCenterUpdate; // Paper - no-tick view distance
+
public EntityPlayer(MinecraftServer minecraftserver, WorldServer worldserver, GameProfile gameprofile, PlayerInteractManager playerinteractmanager) {
super(worldserver, worldserver.getSpawn(), worldserver.v(), gameprofile);
this.spawnDimension = World.OVERWORLD;
diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
index df3150072fd36dac28d83309e50342c9cfa326b3..0b5ddff008d151ad03a1f382a8f24494356e8701 100644
--- a/src/main/java/net/minecraft/server/MCUtil.java
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -621,7 +621,8 @@ public final class MCUtil {
});
worldData.addProperty("name", world.getWorld().getName());
- worldData.addProperty("view-distance", world.spigotConfig.viewDistance);
+ worldData.addProperty("view-distance", world.getChunkProvider().playerChunkMap.getEffectiveViewDistance());
+ worldData.addProperty("no-view-distance", world.getChunkProvider().playerChunkMap.getRawNoTickViewDistance());
worldData.addProperty("keep-spawn-loaded", world.keepSpawnInMemory);
worldData.addProperty("keep-spawn-loaded-range", world.paperConfig.keepLoadedRange);
worldData.addProperty("visible-chunk-count", visibleChunks.size());
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 6bf27c8baf82cfc98158550f711414d9c8fb476b..20ee3d33eac121df3a5f85a9a19c21cf75961aa0 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -57,6 +57,18 @@ public class PlayerChunk {
}
// Paper end - optimise isOutsideOfRange
+ // Paper start - no-tick view distance
+ public final Chunk getSendingChunk() {
+ // it's important that we use getChunkAtIfLoadedImmediately to mirror the chunk sending logic used
+ // in Chunk's neighbour callback
+ Chunk ret = this.chunkMap.world.getChunkProvider().getChunkAtIfLoadedImmediately(this.location.x, this.location.z);
+ if (ret != null && ret.areNeighboursLoaded(1)) {
+ return ret;
+ }
+ return null;
+ }
+ // Paper end - no-tick view distance
+
public PlayerChunk(ChunkCoordIntPair chunkcoordintpair, int i, LightEngine lightengine, PlayerChunk.c playerchunk_c, PlayerChunk.d playerchunk_d) {
this.statusFutures = new AtomicReferenceArray(PlayerChunk.CHUNK_STATUSES.size());
this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
@@ -212,7 +224,7 @@ public class PlayerChunk {
}
public void a(BlockPosition blockposition) {
- Chunk chunk = this.getChunk();
+ Chunk chunk = this.getSendingChunk(); // Paper - no-tick view distance
if (chunk != null) {
byte b0 = (byte) SectionPosition.a(blockposition.getY());
@@ -228,7 +240,7 @@ public class PlayerChunk {
}
public void a(EnumSkyBlock enumskyblock, int i) {
- Chunk chunk = this.getChunk();
+ Chunk chunk = this.getSendingChunk(); // Paper - no-tick view distance
if (chunk != null) {
chunk.setNeedsSaving(true);
@@ -310,9 +322,48 @@ public class PlayerChunk {
}
private void a(Packet<?> packet, boolean flag) {
- this.players.a(this.location, flag).forEach((entityplayer) -> {
- entityplayer.playerConnection.sendPacket(packet);
- });
+ // Paper start - per player view distance
+ // there can be potential desync with player's last mapped section and the view distance map, so use the
+ // view distance map here.
+ com.destroystokyo.paper.util.misc.PlayerAreaMap viewDistanceMap = this.chunkMap.playerViewDistanceBroadcastMap;
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> players = viewDistanceMap.getObjectsInRange(this.location);
+ if (players == null) {
+ return;
+ }
+
+ if (flag) { // flag -> border only
+ Object[] backingSet = players.getBackingSet();
+ for (int i = 0, len = backingSet.length; i < len; ++i) {
+ Object temp = backingSet[i];
+ if (!(temp instanceof EntityPlayer)) {
+ continue;
+ }
+ EntityPlayer player = (EntityPlayer)temp;
+
+ int viewDistance = viewDistanceMap.getLastViewDistance(player);
+ long lastPosition = viewDistanceMap.getLastCoordinate(player);
+
+ int distX = Math.abs(MCUtil.getCoordinateX(lastPosition) - this.location.x);
+ int distZ = Math.abs(MCUtil.getCoordinateZ(lastPosition) - this.location.z);
+
+ if (Math.max(distX, distZ) == viewDistance) {
+ player.playerConnection.sendPacket(packet);
+ }
+ }
+ } else {
+ Object[] backingSet = players.getBackingSet();
+ for (int i = 0, len = backingSet.length; i < len; ++i) {
+ Object temp = backingSet[i];
+ if (!(temp instanceof EntityPlayer)) {
+ continue;
+ }
+ EntityPlayer player = (EntityPlayer)temp;
+ player.playerConnection.sendPacket(packet);
+ }
+ }
+
+ return;
+ // Paper end - per player view distance
}
public CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> a(ChunkStatus chunkstatus, PlayerChunkMap playerchunkmap) {
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index ebca5620f0bbd4173ca50f023f8333b853ab323a..025a5b24e259df04ee88cb251477c908bc909266 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -96,7 +96,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
private boolean updatingChunksModified;
private final ChunkTaskQueueSorter p;
private final Mailbox<ChunkTaskQueueSorter.a<Runnable>> mailboxWorldGen;
- private final Mailbox<ChunkTaskQueueSorter.a<Runnable>> mailboxMain;
+ final Mailbox<ChunkTaskQueueSorter.a<Runnable>> mailboxMain; // Paper - private -> package private
public final WorldLoadListener worldLoadListener;
public final PlayerChunkMap.a chunkDistanceManager;
private final AtomicInteger u;
@@ -171,6 +171,22 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobSpawnMap; // this map is absent from updateMaps since it's controlled at the start of the chunkproviderserver tick
public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerChunkTickRangeMap;
// Paper end - optimise PlayerChunkMap#isOutsideRange
+ // Paper start - no-tick view distance
+ int noTickViewDistance;
+ public final int getRawNoTickViewDistance() {
+ return this.noTickViewDistance;
+ }
+ public final int getEffectiveNoTickViewDistance() {
+ return this.noTickViewDistance == -1 ? this.getEffectiveViewDistance() : this.noTickViewDistance;
+ }
+ public final int getLoadViewDistance() {
+ return Math.max(this.getEffectiveViewDistance(), this.getEffectiveNoTickViewDistance());
+ }
+
+ public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerViewDistanceBroadcastMap;
+ public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerViewDistanceTickMap;
+ public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerViewDistanceNoTickMap;
+ // Paper end - no-tick view distance
void addPlayerToDistanceMaps(EntityPlayer player) {
int chunkX = MCUtil.getChunkCoordinate(player.locX());
@@ -187,6 +203,19 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
// Paper start - optimise PlayerChunkMap#isOutsideRange
this.playerChunkTickRangeMap.add(player, chunkX, chunkZ, ChunkMapDistance.MOB_SPAWN_RANGE);
// Paper end - optimise PlayerChunkMap#isOutsideRange
+ // Paper start - no-tick view distance
+ int effectiveTickViewDistance = this.getEffectiveViewDistance();
+ int effectiveNoTickViewDistance = Math.max(this.getEffectiveNoTickViewDistance(), effectiveTickViewDistance);
+
+ if (!this.cannotLoadChunks(player)) {
+ this.playerViewDistanceTickMap.add(player, chunkX, chunkZ, effectiveTickViewDistance);
+ this.playerViewDistanceNoTickMap.add(player, chunkX, chunkZ, effectiveNoTickViewDistance + 2); // clients need chunk 1 neighbour, and we need another 1 for sending those extra neighbours (as we require neighbours to send)
+ }
+
+ player.needsChunkCenterUpdate = true;
+ this.playerViewDistanceBroadcastMap.add(player, chunkX, chunkZ, effectiveNoTickViewDistance + 1); // clients need an extra neighbour to render the full view distance configured
+ player.needsChunkCenterUpdate = false;
+ // Paper end - no-tick view distance
}
void removePlayerFromDistanceMaps(EntityPlayer player) {
@@ -199,6 +228,11 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
this.playerMobSpawnMap.remove(player);
this.playerChunkTickRangeMap.remove(player);
// Paper end - optimise PlayerChunkMap#isOutsideRange
+ // Paper start - no-tick view distance
+ this.playerViewDistanceBroadcastMap.remove(player);
+ this.playerViewDistanceTickMap.remove(player);
+ this.playerViewDistanceNoTickMap.remove(player);
+ // Paper end - no-tick view distance
}
void updateMaps(EntityPlayer player) {
@@ -216,6 +250,19 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
// Paper start - optimise PlayerChunkMap#isOutsideRange
this.playerChunkTickRangeMap.update(player, chunkX, chunkZ, ChunkMapDistance.MOB_SPAWN_RANGE);
// Paper end - optimise PlayerChunkMap#isOutsideRange
+ // Paper start - no-tick view distance
+ int effectiveTickViewDistance = this.getEffectiveViewDistance();
+ int effectiveNoTickViewDistance = Math.max(this.getEffectiveNoTickViewDistance(), effectiveTickViewDistance);
+
+ if (!this.cannotLoadChunks(player)) {
+ this.playerViewDistanceTickMap.update(player, chunkX, chunkZ, effectiveTickViewDistance);
+ this.playerViewDistanceNoTickMap.update(player, chunkX, chunkZ, effectiveNoTickViewDistance + 2); // clients need chunk 1 neighbour, and we need another 1 for sending those extra neighbours (as we require neighbours to send)
+ }
+
+ player.needsChunkCenterUpdate = true;
+ this.playerViewDistanceBroadcastMap.update(player, chunkX, chunkZ, effectiveNoTickViewDistance + 1); // clients need an extra neighbour to render the full view distance configured
+ player.needsChunkCenterUpdate = false;
+ // Paper end - no-tick view distance
}
// Paper end
@@ -323,6 +370,45 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
});
// Paper end - optimise PlayerChunkMap#isOutsideRange
+ // Paper start - no-tick view distance
+ this.setNoTickViewDistance(this.world.paperConfig.noTickViewDistance);
+ this.playerViewDistanceTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
+ (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> newState) -> {
+ if (newState.size() != 1) {
+ return;
+ }
+ Chunk chunk = PlayerChunkMap.this.world.getChunkProvider().getChunkAtIfLoadedMainThreadNoCache(rangeX, rangeZ);
+ if (chunk == null || !chunk.areNeighboursLoaded(2)) {
+ return;
+ }
+
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(rangeX, rangeZ);
+ PlayerChunkMap.this.world.getChunkProvider().addTicketAtLevel(TicketType.PLAYER, chunkPos, 31, chunkPos); // entity ticking level, TODO check on update
+ },
+ (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> newState) -> {
+ if (newState != null) {
+ return;
+ }
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(rangeX, rangeZ);
+ PlayerChunkMap.this.world.getChunkProvider().removeTicketAtLevel(TicketType.PLAYER, chunkPos, 31, chunkPos); // entity ticking level, TODO check on update
+ });
+ this.playerViewDistanceNoTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets);
+ this.playerViewDistanceBroadcastMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
+ (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> newState) -> {
+ if (player.needsChunkCenterUpdate) {
+ player.needsChunkCenterUpdate = false;
+ player.playerConnection.sendPacket(new PacketPlayOutViewCentre(currPosX, currPosZ));
+ }
+ PlayerChunkMap.this.sendChunk(player, new ChunkCoordIntPair(rangeX, rangeZ), new Packet[2], false, true); // unloaded, loaded
+ },
+ (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> newState) -> {
+ PlayerChunkMap.this.sendChunk(player, new ChunkCoordIntPair(rangeX, rangeZ), null, true, false); // unloaded, loaded
+ });
+ // Paper end - no-tick view distance
}
public void updatePlayerMobTypeMap(Entity entity) {
@@ -1143,15 +1229,11 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
completablefuture1.thenAcceptAsync((either) -> {
either.mapLeft((chunk) -> {
this.u.getAndIncrement();
- Packet<?>[] apacket = new Packet[2];
-
- this.a(chunkcoordintpair, false).forEach((entityplayer) -> {
- this.a(entityplayer, apacket, chunk);
- });
+ // Paper - no-tick view distance - moved to Chunk neighbour update
return Either.left(chunk);
});
}, (runnable) -> {
- this.mailboxMain.a(ChunkTaskQueueSorter.a(playerchunk, runnable));
+ this.mailboxMain.a(ChunkTaskQueueSorter.a(playerchunk, runnable)); // Paper - diff on change, this is the scheduling method copied in Chunk used to schedule chunk broadcasts (on change it needs to be copied again)
});
return completablefuture1;
}
@@ -1246,32 +1328,38 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
}
- protected void setViewDistance(int i) {
- int j = MathHelper.clamp(i + 1, 3, 33);
+ public void setViewDistance(int i) { // Paper - public
+ int j = MathHelper.clamp(i + 1, 3, 33); // Paper - diff on change, these make the lower view distance limit 2 and the upper 32
if (j != this.viewDistance) {
int k = this.viewDistance;
this.viewDistance = j;
- this.chunkDistanceManager.a(this.viewDistance);
- ObjectIterator objectiterator = this.updatingChunks.values().iterator();
+ this.setNoTickViewDistance(this.getRawNoTickViewDistance()); //Paper - no-tick view distance - propagate changes to no-tick, which does the actual chunk loading/sending
+ }
- while (objectiterator.hasNext()) {
- PlayerChunk playerchunk = (PlayerChunk) objectiterator.next();
- ChunkCoordIntPair chunkcoordintpair = playerchunk.i();
- Packet<?>[] apacket = new Packet[2];
+ }
- this.a(chunkcoordintpair, false).forEach((entityplayer) -> {
- int l = b(chunkcoordintpair, entityplayer, true);
- boolean flag = l <= k;
- boolean flag1 = l <= this.viewDistance;
+ // Paper start - no-tick view distance
+ public final void setNoTickViewDistance(int viewDistance) {
+ viewDistance = viewDistance == -1 ? -1 : MathHelper.clamp(viewDistance, 2, 32);
- this.sendChunk(entityplayer, chunkcoordintpair, apacket, flag, flag1);
- });
+ this.noTickViewDistance = viewDistance;
+ int loadViewDistance = this.getLoadViewDistance();
+ this.chunkDistanceManager.setNoTickViewDistance(loadViewDistance + 2 + 2); // add 2 to account for the change to 31 -> 33 tickets // see notes in the distance map updating for the other + 2
+
+ if (this.world != null && this.world.players != null) { // this can be called from constructor, where these aren't set
+ for (EntityPlayer player : this.world.players) {
+ PlayerConnection connection = player.playerConnection;
+ if (connection != null) {
+ // moved in from PlayerList
+ connection.sendPacket(new PacketPlayOutViewDistance(loadViewDistance));
+ }
+ this.updateMaps(player);
}
}
-
}
+ // Paper end - no-tick view distance
protected void sendChunk(EntityPlayer entityplayer, ChunkCoordIntPair chunkcoordintpair, Packet<?>[] apacket, boolean flag, boolean flag1) {
if (entityplayer.world == this.world) {
@@ -1279,7 +1367,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
PlayerChunk playerchunk = this.getVisibleChunk(chunkcoordintpair.pair());
if (playerchunk != null) {
- Chunk chunk = playerchunk.getChunk();
+ Chunk chunk = playerchunk.getSendingChunk(); // Paper - no-tick view distance
if (chunk != null) {
this.a(entityplayer, apacket, chunk);
@@ -1540,6 +1628,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
// Paper end - optimise isOutsideOfRange
+ private boolean cannotLoadChunks(EntityPlayer entityplayer) { return this.b(entityplayer); } // Paper - OBFHELPER
private boolean b(EntityPlayer entityplayer) {
return entityplayer.isSpectator() && !this.world.getGameRules().getBoolean(GameRules.SPECTATORS_GENERATE_CHUNKS);
}
@@ -1567,13 +1656,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
this.removePlayerFromDistanceMaps(entityplayer); // Paper - distance maps
}
- for (int k = i - this.viewDistance; k <= i + this.viewDistance; ++k) {
- for (int l = j - this.viewDistance; l <= j + this.viewDistance; ++l) {
- ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(k, l);
-
- this.sendChunk(entityplayer, chunkcoordintpair, new Packet[2], !flag, flag);
- }
- }
+ // Paper - broadcast view distance map handles this (see remove/add calls above)
}
@@ -1581,7 +1664,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
SectionPosition sectionposition = SectionPosition.a((Entity) entityplayer);
entityplayer.a(sectionposition);
- entityplayer.playerConnection.sendPacket(new PacketPlayOutViewCentre(sectionposition.a(), sectionposition.c()));
+ // Paper - distance map handles this now
return sectionposition;
}
@@ -1626,6 +1709,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
int k1;
int l1;
+ /* // Paper start - replaced by distance map
if (Math.abs(i1 - i) <= this.viewDistance * 2 && Math.abs(j1 - j) <= this.viewDistance * 2) {
k1 = Math.min(i, i1) - this.viewDistance;
l1 = Math.min(j, j1) - this.viewDistance;
@@ -1663,7 +1747,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
this.sendChunk(entityplayer, chunkcoordintpair1, new Packet[2], false, true);
}
}
- }
+ }*/ // Paper end - replaced by distance map
this.updateMaps(entityplayer); // Paper - distance maps
@@ -1671,11 +1755,46 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
@Override
public Stream<EntityPlayer> a(ChunkCoordIntPair chunkcoordintpair, boolean flag) {
- return this.playerMap.a(chunkcoordintpair.pair()).filter((entityplayer) -> {
- int i = b(chunkcoordintpair, entityplayer, true);
+ // Paper start - per player view distance
+ // there can be potential desync with player's last mapped section and the view distance map, so use the
+ // view distance map here.
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> inRange = this.playerViewDistanceBroadcastMap.getObjectsInRange(chunkcoordintpair);
- return i > this.viewDistance ? false : !flag || i == this.viewDistance;
- });
+ if (inRange == null) {
+ return Stream.empty();
+ }
+ // all current cases are inlined so we wont hit this code, it's just in case plugins or future updates use it
+ List<EntityPlayer> players = new java.util.ArrayList<>();
+ Object[] backingSet = inRange.getBackingSet();
+
+ if (flag) { // flag -> border only
+ for (int i = 0, len = backingSet.length; i < len; ++i) {
+ Object temp = backingSet[i];
+ if (!(temp instanceof EntityPlayer)) {
+ continue;
+ }
+ EntityPlayer player = (EntityPlayer)temp;
+ int viewDistance = this.playerViewDistanceBroadcastMap.getLastViewDistance(player);
+ long lastPosition = this.playerViewDistanceBroadcastMap.getLastCoordinate(player);
+
+ int distX = Math.abs(MCUtil.getCoordinateX(lastPosition) - chunkcoordintpair.x);
+ int distZ = Math.abs(MCUtil.getCoordinateZ(lastPosition) - chunkcoordintpair.z);
+ if (Math.max(distX, distZ) == viewDistance) {
+ players.add(player);
+ }
+ }
+ } else {
+ for (int i = 0, len = backingSet.length; i < len; ++i) {
+ Object temp = backingSet[i];
+ if (!(temp instanceof EntityPlayer)) {
+ continue;
+ }
+ EntityPlayer player = (EntityPlayer)temp;
+ players.add(player);
+ }
+ }
+ return players.stream();
+ // Paper end - per player view distance
}
protected void addEntity(Entity entity) {
@@ -1833,7 +1952,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
- private final void sendChunk(EntityPlayer entityplayer, Packet<?>[] apacket, Chunk chunk) { this.a(entityplayer, apacket, chunk); } // Paper - OBFHELPER
+ final void sendChunk(EntityPlayer entityplayer, Packet<?>[] apacket, Chunk chunk) { this.a(entityplayer, apacket, chunk); } // Paper - OBFHELPER
private void a(EntityPlayer entityplayer, Packet<?>[] apacket, Chunk chunk) {
if (apacket[0] == null) {
apacket[0] = new PacketPlayOutMapChunk(chunk, 65535, chunk.world.chunkPacketBlockController.shouldModify(entityplayer, chunk, 65535)); // Paper - Anti-Xray - Bypass
@@ -2019,7 +2138,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(this.tracker.chunkX, this.tracker.chunkZ);
PlayerChunk playerchunk = PlayerChunkMap.this.getVisibleChunk(chunkcoordintpair.pair());
- if (playerchunk != null && playerchunk.getChunk() != null) {
+ if (playerchunk != null && playerchunk.getSendingChunk() != null) { // Paper - no-tick view distance
flag1 = PlayerChunkMap.b(chunkcoordintpair, entityplayer, false) <= PlayerChunkMap.this.viewDistance;
}
}
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index 0f46aac9d021dc115718b1e36b8fbe28cbc820c6..b8ab8150b7dfe9e34910d35f565083e806c4fb0c 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -175,7 +175,7 @@ public abstract class PlayerList {
boolean flag1 = gamerules.getBoolean(GameRules.REDUCED_DEBUG_INFO);
// Spigot - view distance
- playerconnection.sendPacket(new PacketPlayOutLogin(entityplayer.getId(), entityplayer.playerInteractManager.getGameMode(), entityplayer.playerInteractManager.c(), BiomeManager.a(worldserver1.getSeed()), worlddata.isHardcore(), this.server.F(), this.s, worldserver1.getDimensionManager(), worldserver1.getDimensionKey(), this.getMaxPlayers(), worldserver1.spigotConfig.viewDistance, flag1, !flag, worldserver1.isDebugWorld(), worldserver1.isFlatWorld()));
+ playerconnection.sendPacket(new PacketPlayOutLogin(entityplayer.getId(), entityplayer.playerInteractManager.getGameMode(), entityplayer.playerInteractManager.c(), BiomeManager.a(worldserver1.getSeed()), worlddata.isHardcore(), this.server.F(), this.s, worldserver1.getDimensionManager(), worldserver1.getDimensionKey(), this.getMaxPlayers(), worldserver1.getChunkProvider().playerChunkMap.getLoadViewDistance(), flag1, !flag, worldserver1.isDebugWorld(), worldserver1.isFlatWorld())); // Paper - no-tick view distance
entityplayer.getBukkitEntity().sendSupportedChannels(); // CraftBukkit
playerconnection.sendPacket(new PacketPlayOutCustomPayload(PacketPlayOutCustomPayload.a, (new PacketDataSerializer(Unpooled.buffer())).a(this.getServer().getServerModName())));
playerconnection.sendPacket(new PacketPlayOutServerDifficulty(worlddata.getDifficulty(), worlddata.isDifficultyLocked()));
@@ -828,7 +828,7 @@ public abstract class PlayerList {
// CraftBukkit start
WorldData worlddata = worldserver1.getWorldData();
entityplayer1.playerConnection.sendPacket(new PacketPlayOutRespawn(worldserver1.getDimensionManager(), worldserver1.getDimensionKey(), BiomeManager.a(worldserver1.getSeed()), entityplayer1.playerInteractManager.getGameMode(), entityplayer1.playerInteractManager.c(), worldserver1.isDebugWorld(), worldserver1.isFlatWorld(), flag));
- entityplayer1.playerConnection.sendPacket(new PacketPlayOutViewDistance(worldserver1.spigotConfig.viewDistance)); // Spigot
+ entityplayer1.playerConnection.sendPacket(new PacketPlayOutViewDistance(worldserver1.getChunkProvider().playerChunkMap.getLoadViewDistance())); // Spigot // Paper - no-tick view distance
entityplayer1.spawnIn(worldserver1);
entityplayer1.dead = false;
entityplayer1.playerConnection.teleport(new Location(worldserver1.getWorld(), entityplayer1.locX(), entityplayer1.locY(), entityplayer1.locZ(), entityplayer1.yaw, entityplayer1.pitch));
@@ -1295,7 +1295,7 @@ public abstract class PlayerList {
public void a(int i) {
this.viewDistance = i;
- this.sendAll(new PacketPlayOutViewDistance(i));
+ //this.sendAll(new PacketPlayOutViewDistance(i)); // Paper - move into setViewDistance
Iterator iterator = this.server.getWorlds().iterator();
while (iterator.hasNext()) {
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index bdd1f0873c7b79106d1764eb581b55407d696242..6262db64ae1b615c6742357c32746480eeb69137 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -464,8 +464,13 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
this.b(blockposition, iblockdata1, iblockdata2);
}
- if ((i & 2) != 0 && (!this.isClientSide || (i & 4) == 0) && (this.isClientSide || chunk == null || (chunk.getState() != null && chunk.getState().isAtLeast(PlayerChunk.State.TICKING)))) { // allow chunk to be null here as chunk.isReady() is false when we send our notification during block placement
+ if ((i & 2) != 0 && (!this.isClientSide || (i & 4) == 0) && (this.isClientSide || chunk == null || (chunk.getState() != null && chunk.getState().isAtLeast(PlayerChunk.State.TICKING)))) { // allow chunk to be null here as chunk.isReady() is false when we send our notification during block placement // Paper - diff on change, see below
this.notify(blockposition, iblockdata1, iblockdata, i);
+ // Paper start - per player view distance - allow block updates for non-ticking chunks in player view distance
+ // if copied from above
+ } else if ((i & 2) != 0 && (!this.isClientSide || (i & 4) == 0) && (this.isClientSide || chunk == null || ((WorldServer)this).getChunkProvider().playerChunkMap.playerViewDistanceBroadcastMap.getObjectsInRange(MCUtil.getCoordinateKey(blockposition)) != null)) {
+ ((WorldServer)this).getChunkProvider().flagDirty(blockposition);
+ // Paper end - per player view distance
}
if ((i & 1) != 0) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index e800c7cdfa2a9d5ee8e3969ed14e7453e82d9450..b2a225088753a38a3119b4db1d99de8c4529c175 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -2535,10 +2535,39 @@ public class CraftWorld implements World {
// Spigot start
@Override
public int getViewDistance() {
- return world.spigotConfig.viewDistance;
+ return getHandle().getChunkProvider().playerChunkMap.getEffectiveViewDistance(); // Paper - no-tick view distance
}
// Spigot end
+ // Paper start - per player view distance
+ @Override
+ public void setViewDistance(int viewDistance) {
+ if (viewDistance < 2 || viewDistance > 32) {
+ throw new IllegalArgumentException("View distance " + viewDistance + " is out of range of [2, 32]");
+ }
+ net.minecraft.server.PlayerChunkMap chunkMap = getHandle().getChunkProvider().playerChunkMap;
+ if (viewDistance != chunkMap.getEffectiveViewDistance()) {
+ chunkMap.setViewDistance(viewDistance);
+ }
+ }
+
+ @Override
+ public int getNoTickViewDistance() {
+ return getHandle().getChunkProvider().playerChunkMap.getEffectiveNoTickViewDistance();
+ }
+
+ @Override
+ public void setNoTickViewDistance(int viewDistance) {
+ if ((viewDistance < 2 || viewDistance > 32) && viewDistance != -1) {
+ throw new IllegalArgumentException("View distance " + viewDistance + " is out of range of [2, 32]");
+ }
+ net.minecraft.server.PlayerChunkMap chunkMap = getHandle().getChunkProvider().playerChunkMap;
+ if (viewDistance != chunkMap.getRawNoTickViewDistance()) {
+ chunkMap.setNoTickViewDistance(viewDistance);
+ }
+ }
+ // Paper end - per player view distance
+
// Spigot start
private final Spigot spigot = new Spigot()
{
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index 9030284ba06dfdcc17c2710f428e84d70afea8d5..0b93635ba59df4eb4456a97c5e9b51ab5aeda53f 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -201,7 +201,7 @@ public class ActivationRange
maxRange = Math.max( maxRange, waterActivationRange );
maxRange = Math.max( maxRange, villagerActivationRange );
// Paper end
- maxRange = Math.min( ( world.spigotConfig.viewDistance << 4 ) - 8, maxRange );
+ maxRange = Math.min( ( ((net.minecraft.server.WorldServer)world).getChunkProvider().playerChunkMap.getEffectiveViewDistance() << 4 ) - 8, maxRange ); // Paper - no-tick view distance
for ( EntityHuman player : world.getPlayers() )
{
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