Paper/patches/server/0168-PlayerNaturallySpawnCreaturesEvent.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 14 Jan 2018 17:36:02 -0500
Subject: [PATCH] PlayerNaturallySpawnCreaturesEvent
This event can be used for when you want to exclude a certain player
from triggering monster spawns on a server.
Also a highly more effecient way to blanket block spawns in a world
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 15c9f4822d1d11d05de6c2d6797ee3e845b3a1ab..46da628073e2bfb77b3deab623dba46228d92618 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1221,7 +1221,9 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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chunkRange = (chunkRange > this.level.spigotConfig.viewDistance) ? (byte) this.level.spigotConfig.viewDistance : chunkRange;
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chunkRange = (chunkRange > 8) ? 8 : chunkRange;
- double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D;
+ final int finalChunkRange = chunkRange; // Paper for lambda below
+ //double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D; // Paper - use from event
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+ double blockRange = 16384.0D; // Paper
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// Spigot end
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if (!this.distanceManager.hasPlayersNearby(chunkcoordintpair.toLong())) {
return false;
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@@ -1236,6 +1238,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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}
entityplayer = (ServerPlayer) iterator.next();
+ // Paper start - PlayerNaturallySpawnCreaturesEvent
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+ com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event;
+ blockRange = 16384.0D;
+ if (reducedRange) {
+ event = entityplayer.playerNaturallySpawnedEvent;
+ if (event == null || event.isCancelled()) return false;
+ blockRange = (double) ((event.getSpawnRadius() << 4) * (event.getSpawnRadius() << 4));
+ }
+ // Paper end - PlayerNaturallySpawnCreaturesEvent
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} while (!this.playerIsCloseEnoughForSpawning(entityplayer, chunkcoordintpair, blockRange)); // Spigot
return true;
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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 3f60a3289ec58d5eb3c0c5634ca62ef2fa287ce7..bc81649b09c39188697b8851abedafca0dde9d99 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -558,6 +558,15 @@ public class ServerChunkCache extends ChunkSource {
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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);
+ // Paper start - PlayerNaturallySpawnCreaturesEvent
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+ int chunkRange = level.spigotConfig.mobSpawnRange;
+ chunkRange = (chunkRange > level.spigotConfig.viewDistance) ? (byte) level.spigotConfig.viewDistance : chunkRange;
+ chunkRange = Math.min(chunkRange, 8);
+ for (ServerPlayer entityPlayer : this.level.players()) {
+ entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange);
+ entityPlayer.playerNaturallySpawnedEvent.callEvent();
+ }
+ // Paper end - PlayerNaturallySpawnCreaturesEvent
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int l = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING);
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
Iterator iterator1 = list.iterator();
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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
index a5122de4602db3b93a9221e1a9a33bcb73dbe771..785c7e56a053acffa79fb11a32849d99961e35a4 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -282,6 +282,7 @@ public class ServerPlayer extends Player {
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// CraftBukkit end
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
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public boolean isRealPlayer; // Paper
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public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
+ public com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper - PlayerNaturallySpawnCreaturesEvent
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public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile, ClientInformation clientOptions) {
super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile);