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Paper/patches/server/0329-Configurable-Keep-Spawn-Loaded-range-per-world.patch
Jake 00be0b7b30 Updated Upstream (Bukkit/CraftBukkit/Spigot) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
d25437bc Update to Minecraft 1.18-pre8

CraftBukkit Changes:
5a39a236 Update to Minecraft 1.18-pre8

Spigot Changes:
7840c2af Update to Minecraft 1.18-pre8
2021-11-30 19:26:33 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 13 Sep 2014 23:14:43 -0400
Subject: [PATCH] Configurable Keep Spawn Loaded range per world
This lets you disable it for some worlds and lower it for others.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 92a5e0357328b5d472afd181a77a7ec7b593b88c..624860b6eb087ee412bae3c1aed51a7a65c8af83 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -56,6 +56,12 @@ public class PaperWorldConfig {
}
}
+ public short keepLoadedRange;
+ private void keepLoadedRange() {
+ keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16);
+ log( "Keep Spawn Loaded Range: " + (keepLoadedRange/16));
+ }
+
private boolean getBoolean(String path, boolean def) {
config.addDefault("world-settings.default." + path, def);
return config.getBoolean("world-settings." + worldName + "." + path, config.getBoolean("world-settings.default." + path));
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 8a2d49f210370490946b68d213fb504b74f37384..c6409dfa739f0056484e70d2be4cd448e868d6bb 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -759,35 +759,36 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// CraftBukkit start
public void prepareLevels(ChunkProgressListener worldloadlistener, ServerLevel worldserver) {
- if (!worldserver.getWorld().getKeepSpawnInMemory()) {
- return;
- }
+ ServerChunkCache chunkproviderserver = worldserver.getChunkSource(); // Paper
// WorldServer worldserver = this.overworld();
this.forceTicks = true;
// CraftBukkit end
+ if (worldserver.getWorld().getKeepSpawnInMemory()) { // Paper
MinecraftServer.LOGGER.info("Preparing start region for dimension {}", worldserver.dimension().location());
BlockPos blockposition = worldserver.getSharedSpawnPos();
worldloadlistener.updateSpawnPos(new ChunkPos(blockposition));
- ServerChunkCache chunkproviderserver = worldserver.getChunkSource();
+ //ChunkProviderServer chunkproviderserver = worldserver.getChunkProvider(); // Paper - move up
chunkproviderserver.getLightEngine().setTaskPerBatch(500);
this.nextTickTime = Util.getMillis();
- chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(blockposition), 11, Unit.INSTANCE);
-
- while (chunkproviderserver.getTickingGenerated() != 441) {
- // CraftBukkit start
- // this.nextTickTime = SystemUtils.getMillis() + 10L;
- this.executeModerately();
- // CraftBukkit end
- }
+ // Paper start - configurable spawn reason
+ int radiusBlocks = worldserver.paperConfig.keepLoadedRange;
+ int radiusChunks = radiusBlocks / 16 + ((radiusBlocks & 15) != 0 ? 1 : 0);
+ int totalChunks = ((radiusChunks) * 2 + 1);
+ totalChunks *= totalChunks;
+ worldloadlistener.setChunkRadius(radiusBlocks / 16);
+
+ worldserver.addTicketsForSpawn(radiusBlocks, blockposition);
+ // Paper end
// CraftBukkit start
// this.nextTickTime = SystemUtils.getMillis() + 10L;
this.executeModerately();
// Iterator iterator = this.levels.values().iterator();
+ }
if (true) {
ServerLevel worldserver1 = worldserver;
@@ -810,7 +811,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// this.nextTickTime = SystemUtils.getMillis() + 10L;
this.executeModerately();
// CraftBukkit end
- worldloadlistener.stop();
+ if (worldserver.getWorld().getKeepSpawnInMemory()) worldloadlistener.stop(); // Paper
chunkproviderserver.getLightEngine().setTaskPerBatch(5);
// CraftBukkit start
// this.updateMobSpawningFlags();
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index cd2dd257126a207b0ccf7e94bc71c5a52ca8509d..93b1073df35934266e6f608dca08669b05bd6f8b 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -59,6 +59,7 @@ import net.minecraft.network.protocol.game.ClientboundSoundEntityPacket;
import net.minecraft.network.protocol.game.ClientboundSoundPacket;
import net.minecraft.network.protocol.game.DebugPackets;
import net.minecraft.resources.ResourceKey;
+import net.minecraft.server.MCUtil;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.ServerScoreboard;
import net.minecraft.server.level.progress.ChunkProgressListener;
@@ -1584,12 +1585,84 @@ public class ServerLevel extends Level implements WorldGenLevel {
return ((MapIndex) this.getServer().overworld().getDataStorage().computeIfAbsent(MapIndex::load, MapIndex::new, "idcounts")).getFreeAuxValueForMap();
}
+ // Paper start - helper function for configurable spawn radius
+ public void addTicketsForSpawn(int radiusInBlocks, BlockPos spawn) {
+ // In order to respect vanilla behavior, which is ensuring everything but the spawn border can tick, we add tickets
+ // with level 31 for the non-border spawn chunks
+ ServerChunkCache chunkproviderserver = this.getChunkSource();
+ int tickRadius = radiusInBlocks - 16;
+
+ // add ticking chunks
+ for (int x = -tickRadius; x <= tickRadius; x += 16) {
+ for (int z = -tickRadius; z <= tickRadius; z += 16) {
+ // radius of 2 will have the current chunk be level 31
+ chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, z)), 2, Unit.INSTANCE);
+ }
+ }
+
+ // add border chunks
+
+ // add border along x axis (including corner chunks)
+ for (int x = -radiusInBlocks; x <= radiusInBlocks; x += 16) {
+ // top
+ chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ // bottom
+ chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, -radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ }
+
+ // add border along z axis (excluding corner chunks)
+ for (int z = -radiusInBlocks + 16; z < radiusInBlocks; z += 16) {
+ // right
+ chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(spawn.offset(radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ // left
+ chunkproviderserver.addRegionTicket(TicketType.START, new ChunkPos(spawn.offset(-radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ }
+ }
+ public void removeTicketsForSpawn(int radiusInBlocks, BlockPos spawn) {
+ // In order to respect vanilla behavior, which is ensuring everything but the spawn border can tick, we added tickets
+ // with level 31 for the non-border spawn chunks
+ ServerChunkCache chunkproviderserver = this.getChunkSource();
+ int tickRadius = radiusInBlocks - 16;
+
+ // remove ticking chunks
+ for (int x = -tickRadius; x <= tickRadius; x += 16) {
+ for (int z = -tickRadius; z <= tickRadius; z += 16) {
+ // radius of 2 will have the current chunk be level 31
+ chunkproviderserver.removeRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, z)), 2, Unit.INSTANCE);
+ }
+ }
+
+ // remove border chunks
+
+ // remove border along x axis (including corner chunks)
+ for (int x = -radiusInBlocks; x <= radiusInBlocks; x += 16) {
+ // top
+ chunkproviderserver.removeRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ // bottom
+ chunkproviderserver.removeRegionTicket(TicketType.START, new ChunkPos(spawn.offset(x, 0, -radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ }
+
+ // remove border along z axis (excluding corner chunks)
+ for (int z = -radiusInBlocks + 16; z < radiusInBlocks; z += 16) {
+ // right
+ chunkproviderserver.removeRegionTicket(TicketType.START, new ChunkPos(spawn.offset(radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ // left
+ chunkproviderserver.removeRegionTicket(TicketType.START, new ChunkPos(spawn.offset(-radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ }
+ }
+ // Paper end
+
public void setDefaultSpawnPos(BlockPos pos, float angle) {
- ChunkPos chunkcoordintpair = new ChunkPos(new BlockPos(this.levelData.getXSpawn(), 0, this.levelData.getZSpawn()));
+ // Paper - configurable spawn radius
+ BlockPos prevSpawn = this.getSharedSpawnPos();
+ //ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(new BlockPosition(this.worldData.a(), 0, this.worldData.c()));
this.levelData.setSpawn(pos, angle);
- this.getChunkSource().removeRegionTicket(TicketType.START, chunkcoordintpair, 11, Unit.INSTANCE);
- this.getChunkSource().addRegionTicket(TicketType.START, new ChunkPos(pos), 11, Unit.INSTANCE);
+ if (this.keepSpawnInMemory) {
+ // if this keepSpawnInMemory is false a plugin has already removed our tickets, do not re-add
+ this.removeTicketsForSpawn(this.paperConfig.keepLoadedRange, prevSpawn);
+ this.addTicketsForSpawn(this.paperConfig.keepLoadedRange, pos);
+ }
this.getServer().getPlayerList().broadcastAll(new ClientboundSetDefaultSpawnPositionPacket(pos, angle));
}
diff --git a/src/main/java/net/minecraft/server/level/progress/ChunkProgressListener.java b/src/main/java/net/minecraft/server/level/progress/ChunkProgressListener.java
index 1b565b2809c2d367e21971c5154f35c9763995e6..b0f899835ded29aff108d1674bf4a1a6c89693db 100644
--- a/src/main/java/net/minecraft/server/level/progress/ChunkProgressListener.java
+++ b/src/main/java/net/minecraft/server/level/progress/ChunkProgressListener.java
@@ -12,4 +12,6 @@ public interface ChunkProgressListener {
void start();
void stop();
+
+ void setChunkRadius(int radius); // Paper - allow changing chunk radius
}
diff --git a/src/main/java/net/minecraft/server/level/progress/LoggerChunkProgressListener.java b/src/main/java/net/minecraft/server/level/progress/LoggerChunkProgressListener.java
index 4185e6bcf9b2bb65b2a0fa5fcbeb5684615169a7..dbc29442f2b2ad3ea451910f4944e90114a317c7 100644
--- a/src/main/java/net/minecraft/server/level/progress/LoggerChunkProgressListener.java
+++ b/src/main/java/net/minecraft/server/level/progress/LoggerChunkProgressListener.java
@@ -11,12 +11,19 @@ import org.apache.logging.log4j.Logger;
public class LoggerChunkProgressListener implements ChunkProgressListener {
private static final Logger LOGGER = LogManager.getLogger();
- private final int maxCount;
+ private int maxCount; // Paper - remove final
private int count;
private long startTime;
private long nextTickTime = Long.MAX_VALUE;
public LoggerChunkProgressListener(int radius) {
+ // Paper start - Allow changing radius later for configurable spawn patch
+ this.setChunkRadius(radius); // Move to method
+ }
+
+ @Override
+ public void setChunkRadius(int radius) {
+ // Paper end
int i = radius * 2 + 1;
this.maxCount = i * i;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index f68fa8f971c39e3d150860542341a2564730b089..bb95fec09594f7e2d38619ae4055ec9964635622 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -1337,15 +1337,21 @@ public class CraftWorld extends CraftRegionAccessor implements World {
@Override
public void setKeepSpawnInMemory(boolean keepLoaded) {
- world.keepSpawnInMemory = keepLoaded;
+ // Paper start - Configurable spawn radius
+ if (keepLoaded == world.keepSpawnInMemory) {
+ // do nothing, nothing has changed
+ return;
+ }
+ this.world.keepSpawnInMemory = keepLoaded;
// Grab the worlds spawn chunk
BlockPos chunkcoordinates = this.world.getSharedSpawnPos();
if (keepLoaded) {
- this.world.getChunkSource().addRegionTicket(TicketType.START, new ChunkPos(chunkcoordinates), 11, Unit.INSTANCE);
+ this.world.addTicketsForSpawn(this.world.paperConfig.keepLoadedRange, chunkcoordinates);
} else {
- // TODO: doesn't work well if spawn changed....
- this.world.getChunkSource().removeRegionTicket(TicketType.START, new ChunkPos(chunkcoordinates), 11, Unit.INSTANCE);
+ // TODO: doesn't work well if spawn changed.... // Paper - resolved
+ this.world.removeTicketsForSpawn(this.world.paperConfig.keepLoadedRange, chunkcoordinates);
}
+ // Paper end
}
@Override
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