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Paper/Spigot-Server-Patches/0361-Configurable-Keep-Spawn-Loaded-range-per-world.patch
Prof-Bloodstone 42433c2626
Updated Upstream (Bukkit/CraftBukkit) (#3980) 
Upstream has released updates that appears 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:
09f10fd9 SPIGOT-5950: Add PrepareSmithingEvent event

CraftBukkit Changes:
7c03d257 SPIGOT-6011: End Gateways do not work on Non-Main End Worlds
d492e363 SPIGOT-6015: Small Armor Stand doesn't drop items
5db13eea SPIGOT-5950: Add PrepareSmithingEvent event
2020-07-22 19:35:44 -04:00

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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 6e29e3294d0661cc35d53b4201d980a2db4f5c93..6e1756eb90b6237100612527f69c995246d53ed1 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -444,4 +444,10 @@ public class PaperWorldConfig {
break;
}
}
+
+ 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));
+ }
}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index b9e047643e1c3f84f26d936fcb067f607018ef34..d6a3c51826ac82fd46b8f6c98be7bf405ffa3f38 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -607,6 +607,14 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
this.forceTicks = true;
// 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);
+ // Paper end
+
MinecraftServer.LOGGER.info("Preparing start region for dimension {}", worldserver.getDimensionKey().a());
BlockPosition blockposition = worldserver.getSpawn();
@@ -615,14 +623,12 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
chunkproviderserver.getLightEngine().a(500);
this.nextTick = SystemUtils.getMonotonicMillis();
- chunkproviderserver.addTicket(TicketType.START, new ChunkCoordIntPair(blockposition), 11, Unit.INSTANCE);
-
- while (chunkproviderserver.b() != 441) {
- // CraftBukkit start
- // this.nextTick = SystemUtils.getMonotonicMillis() + 10L;
- this.executeModerately();
- // CraftBukkit end
+ // Paper start - Configurable spawn radius
+ if (worldserver.keepSpawnInMemory) {
+ worldserver.addTicketsForSpawn(radiusBlocks, blockposition);
}
+ // Paper end
+ LOGGER.info("Loaded " + chunkproviderserver.b() + " spawn chunks for world " + worldserver.getWorld().getName()); // Paper
// CraftBukkit start
// this.nextTick = SystemUtils.getMonotonicMillis() + 10L;
diff --git a/src/main/java/net/minecraft/server/WorldLoadListener.java b/src/main/java/net/minecraft/server/WorldLoadListener.java
index d6762d3853b55b639047f455351150a1cbc9399a..7b6f5b2da0a76661a0e047ee7002aa07cdd4a8b1 100644
--- a/src/main/java/net/minecraft/server/WorldLoadListener.java
+++ b/src/main/java/net/minecraft/server/WorldLoadListener.java
@@ -9,4 +9,6 @@ public interface WorldLoadListener {
void a(ChunkCoordIntPair chunkcoordintpair, @Nullable ChunkStatus chunkstatus);
void b();
+
+ void setChunkRadius(int radius); // Paper - allow changing chunk radius
}
diff --git a/src/main/java/net/minecraft/server/WorldLoadListenerLogger.java b/src/main/java/net/minecraft/server/WorldLoadListenerLogger.java
index 3868572aed50c8bffd93727a139a3fbb8dc19688..ae77805f71c6c574d92f39c51b1e48f2138e9ab6 100644
--- a/src/main/java/net/minecraft/server/WorldLoadListenerLogger.java
+++ b/src/main/java/net/minecraft/server/WorldLoadListenerLogger.java
@@ -7,16 +7,24 @@ import org.apache.logging.log4j.Logger;
public class WorldLoadListenerLogger implements WorldLoadListener {
private static final Logger LOGGER = LogManager.getLogger();
- private final int b;
+ private int b; // Paper - remove final
private int c;
private long d;
private long e = Long.MAX_VALUE;
public WorldLoadListenerLogger(int i) {
- int j = i * 2 + 1;
+ // Paper start - Allow changing radius later for configurable spawn patch
+ this.setChunkRadius(i); // Move to method
+ }
+
+ @Override
+ public void setChunkRadius(int radius) {
+ // Paper - copied from above
+ int j = radius * 2 + 1;
this.b = j * j;
}
+ // Paper end
@Override
public void a(ChunkCoordIntPair chunkcoordintpair) {
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 41c68de8119dc53a033ac005d69cd57d38b4f719..7b4182a0dc9aaa76f0a4a3b09cc497bcb9704277 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1499,12 +1499,88 @@ public class WorldServer extends World implements GeneratorAccessSeed {
return ((PersistentIdCounts) this.getMinecraftServer().D().getWorldPersistentData().a(PersistentIdCounts::new, "idcounts")).a();
}
+ // Paper start - helper function for configurable spawn radius
+ public void addTicketsForSpawn(int radiusInBlocks, BlockPosition 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
+ ChunkProviderServer chunkproviderserver = this.getChunkProvider();
+ 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.addTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(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.addTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(x, 0, radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ // bottom
+ chunkproviderserver.addTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(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.addTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ // left
+ chunkproviderserver.addTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(-radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ }
+
+ MCUtil.getSpiralOutChunks(spawn, radiusInBlocks >> 4).forEach(pair -> {
+ getChunkProvider().getChunkAtMainThread(pair.x, pair.z);
+ });
+ }
+ public void removeTicketsForSpawn(int radiusInBlocks, BlockPosition 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
+ ChunkProviderServer chunkproviderserver = this.getChunkProvider();
+ 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.removeTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(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.removeTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(x, 0, radiusInBlocks)), 1, Unit.INSTANCE); // level 32
+ // bottom
+ chunkproviderserver.removeTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(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.removeTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ // left
+ chunkproviderserver.removeTicket(TicketType.START, new ChunkCoordIntPair(spawn.add(-radiusInBlocks, 0, z)), 1, Unit.INSTANCE); // level 32
+ }
+ }
+ // Paper end
+
public void a_(BlockPosition blockposition) {
- ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(new BlockPosition(this.worldData.a(), 0, this.worldData.c()));
+ // Paper - configurable spawn radius
+ BlockPosition prevSpawn = this.getSpawn();
+ //ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(new BlockPosition(this.worldData.a(), 0, this.worldData.c()));
this.worldData.setSpawn(blockposition);
- this.getChunkProvider().removeTicket(TicketType.START, chunkcoordintpair, 11, Unit.INSTANCE);
- this.getChunkProvider().addTicket(TicketType.START, new ChunkCoordIntPair(blockposition), 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, blockposition);
+ }
this.getMinecraftServer().getPlayerList().sendAll(new PacketPlayOutSpawnPosition(blockposition));
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 48805c32aabe453e0a860168b79ea9026fa848b1..b5621b8456fbd3c5e94a9b9ec9b4be0068962674 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -1949,15 +1949,21 @@ public class CraftWorld implements World {
@Override
public void setKeepSpawnInMemory(boolean keepLoaded) {
+ // Paper start - Configurable spawn radius
+ if (keepLoaded == world.keepSpawnInMemory) {
+ // do nothing, nothing has changed
+ return;
+ }
world.keepSpawnInMemory = keepLoaded;
// Grab the worlds spawn chunk
- BlockPosition chunkcoordinates = this.world.getSpawn();
+ BlockPosition prevSpawn = this.world.getSpawn();
if (keepLoaded) {
- world.getChunkProvider().addTicket(TicketType.START, new ChunkCoordIntPair(chunkcoordinates), 11, Unit.INSTANCE);
+ world.addTicketsForSpawn(world.paperConfig.keepLoadedRange, prevSpawn);
} else {
- // TODO: doesn't work well if spawn changed....
- world.getChunkProvider().removeTicket(TicketType.START, new ChunkCoordIntPair(chunkcoordinates), 11, Unit.INSTANCE);
+ // TODO: doesn't work well if spawn changed.... // paper - resolved
+ world.removeTicketsForSpawn(world.paperConfig.keepLoadedRange, prevSpawn);
}
+ // Paper end
}
@Override
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