2020-06-25 14:09:55 +00:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 12 Sep 2018 21:12:57 -0400
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Subject: [PATCH] Prevent mob spawning from loading/generating chunks
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also prevents if out of world border bounds
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diff --git a/src/main/java/net/minecraft/server/SpawnerCreature.java b/src/main/java/net/minecraft/server/SpawnerCreature.java
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2020-06-26 16:20:03 +00:00
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index 137fa3e51390e95f5939f2251e0d170accbfb469..6426f67afb3cc3522ff79b1c8515c1f97cd2f0c1 100644
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2020-06-25 14:09:55 +00:00
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--- a/src/main/java/net/minecraft/server/SpawnerCreature.java
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+++ b/src/main/java/net/minecraft/server/SpawnerCreature.java
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2020-06-26 16:20:03 +00:00
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@@ -144,9 +144,9 @@ public final class SpawnerCreature {
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2020-06-25 14:09:55 +00:00
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StructureManager structuremanager = worldserver.getStructureManager();
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ChunkGenerator chunkgenerator = worldserver.getChunkProvider().getChunkGenerator();
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int i = blockposition.getY();
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- IBlockData iblockdata = ichunkaccess.getType(blockposition);
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+ IBlockData iblockdata = worldserver.getTypeIfLoadedAndInBounds(blockposition); // Paper - don't load chunks for mob spawn
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- if (!iblockdata.isOccluding(ichunkaccess, blockposition)) {
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+ if (iblockdata != null && !iblockdata.isOccluding(ichunkaccess, blockposition)) { // Paper - don't load chunks for mob spawn
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BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
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int j = 0;
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int k = 0;
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2020-06-26 16:20:03 +00:00
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@@ -175,7 +175,7 @@ public final class SpawnerCreature {
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2020-06-25 14:09:55 +00:00
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if (entityhuman != null) {
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double d2 = entityhuman.g(d0, (double) i, d1);
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- if (a(worldserver, ichunkaccess, blockposition_mutableblockposition, d2)) {
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+ if (a(worldserver, ichunkaccess, blockposition_mutableblockposition, d2) && worldserver.isLoadedAndInBounds(blockposition_mutableblockposition)) { // Paper - don't load chunks for mob spawn
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if (biomebase_biomemeta == null) {
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biomebase_biomemeta = a(worldserver, structuremanager, chunkgenerator, enumcreaturetype, worldserver.random, (BlockPosition) blockposition_mutableblockposition);
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if (biomebase_biomemeta == null) {
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