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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 1 Mar 2022 14:12:17 -0800
Subject: [PATCH] Fix World#locateNearestStructure
1.18.2 switched to TagKeys to reference tags of objects, and this method
impl needs to be changed to reflect that
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 85b3bf7718e51ffa52799c0748843aaad3fd3813..17e87875a95495940899b862eabf98b3d6a365da 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -2060,6 +2060,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
this.resources.managers.updateRegistryTags(this.registryAccess());
io.papermc.paper.registry.PaperRegistry.clearCaches(); // Paper
net.minecraft.world.item.alchemy.PotionBrewing.reload(); // Paper
+ // Paper start - clear cache cause datapacks can add more configured structures
+ for (ServerLevel level : this.levels.values()) {
+ level.getWorld().structureCache.clear();
+ }
+ // Paper end
new io.papermc.paper.event.server.ServerResourcesReloadedEvent(cause).callEvent(); // Paper
if (Thread.currentThread() != this.serverThread) return; // Paper
//this.getPlayerList().saveAll(); // Paper - we don't need to do this
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 8e87aca16879d7dd1dc0bd17d3215fca40b547cd..b5b56d4549e97abbbe9e91d881b9bca8428f1eec 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1790,7 +1790,16 @@ public class ServerLevel extends Level implements WorldGenLevel {
if (optional.isEmpty()) {
return null;
} else {
- Pair<BlockPos, Holder<ConfiguredStructureFeature<?, ?>>> pair = this.getChunkSource().getGenerator().findNearestMapFeature(this, (HolderSet) optional.get(), pos, radius, skipExistingChunks);
+ // Paper start
+ return this.findNearestMapFeature(optional.get(), pos, radius, skipExistingChunks);
+ }
+ }
+ }
+ public @Nullable BlockPos findNearestMapFeature(HolderSet<ConfiguredStructureFeature<?, ?>> holderSet, BlockPos pos, int radius, boolean skipExistingChunks) {
+ {
+ {
+ Pair<BlockPos, Holder<ConfiguredStructureFeature<?, ?>>> pair = this.getChunkSource().getGenerator().findNearestMapFeature(this, holderSet, pos, radius, skipExistingChunks);
+ // Paper end
return pair != null ? (BlockPos) pair.getFirst() : null;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index a3ddeb9862bc87294c215dc906cd8cca8f699b62..b2c5fbfcb64f3056d7975db43b2db45bfd5e9890 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -2071,10 +2071,22 @@ public class CraftWorld extends CraftRegionAccessor implements World {
}
+ public final Map<StructureType, List<Holder.Reference<net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature<?, ?>>>> structureCache = new java.util.HashMap<>(); // Paper
@Override
public Location locateNearestStructure(Location origin, StructureType structureType, int radius, boolean findUnexplored) {
BlockPos originPos = new BlockPos(origin.getX(), origin.getY(), origin.getZ());
- BlockPos nearest = this.getHandle().findNearestMapFeature(TagKey.create(Registry.CONFIGURED_STRUCTURE_FEATURE_REGISTRY, CraftNamespacedKey.toMinecraft(structureType.getKey())), originPos, radius, findUnexplored);
+ // Paper start - fix because you can't just create random TagKeys
+ if (!this.getHandle().serverLevelData.worldGenSettings().generateFeatures()) { // from ServerLevel#findNearestMapFeature
+ return null;
+ }
+ final List<Holder.Reference<net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature<?, ?>>> features = this.structureCache.computeIfAbsent(structureType, (type) -> {
+ final Registry<net.minecraft.world.level.levelgen.feature.StructureFeature<?>> structureFeatureRegistry = this.getHandle().registryAccess().registryOrThrow(Registry.STRUCTURE_FEATURE_REGISTRY);
+ return this.getHandle().registryAccess().registryOrThrow(Registry.CONFIGURED_STRUCTURE_FEATURE_REGISTRY).holders().filter(holder -> {
+ return structureType.getKey().equals(org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(Objects.requireNonNull(structureFeatureRegistry.getKey(holder.value().feature))));
+ }).toList();
+ });
+ BlockPos nearest = this.getHandle().findNearestMapFeature(net.minecraft.core.HolderSet.direct(features), originPos, radius, findUnexplored);
+ // Paper end
return (nearest == null) ? null : new Location(this, nearest.getX(), nearest.getY(), nearest.getZ());
}
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