Paper/Spigot-Server-Patches/0198-PlayerNaturallySpawnCreaturesEvent.patch

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From e27ae28fa9c01ce1867832c3452849b3b05a7290 Mon Sep 17 00:00:00 2001
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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/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index c2f442051..5d6d6a5a5 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -762,11 +762,17 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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chunkRange = (chunkRange > world.spigotConfig.viewDistance) ? (byte) world.spigotConfig.viewDistance : chunkRange;
chunkRange = (chunkRange > 8) ? 8 : chunkRange;
- double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D;
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+ 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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// Spigot end
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return this.playerMap.a(chunkcoordintpair.pair()).noneMatch((entityplayer) -> {
- return !entityplayer.isSpectator() && a(chunkcoordintpair, (Entity) entityplayer) < blockRange; // Spigot
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+ // Paper start -
+ com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event
+ = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityplayer.getBukkitEntity(), (byte) finalChunkRange);
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+ final double blockRange = (double)((event.getSpawnRadius() << 4) * (event.getSpawnRadius() << 4));
+ return event.isCancelled() || (!entityplayer.isSpectator() && a(chunkcoordintpair, (Entity) entityplayer) < blockRange); // Spigot
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+ // Paper end
});
}
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--
2.21.0