Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-15 19:10:09 +01:00
89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
356 Zeilen
24 KiB
Diff
356 Zeilen
24 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Thu, 13 Jan 2022 23:05:53 -0800
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Subject: [PATCH] Add missing structure set seed configs
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The 4 missing structure set seed configs are strongholds, mineshafts,
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buried treasure, and ancient cities.
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Strongholds use a ring placement scheme which isn't random so they
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utilize the world seed by default, this adds a config to override it
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for just generating the ring positions.
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Mineshafts and Buried Treasure structure sets are special cases
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where the "salt" that can be defined for them via datapacks has 0
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effect because the difference between the spacing and separation is 1
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which is used as the upper bound in the random with salt. So the random
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always returns the same int (0) so the salt has no effect. This adds
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seeds/salts to the frequency reducer which has a similar effect.
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Co-authored-by: William Blake Galbreath <blake.galbreath@gmail.com>
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diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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index 567103d635087bf894a8c0473baf03bdb5ff052f..f767c822a8e86ce689d40d12c4ef2db3829a97cc 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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@@ -568,7 +568,7 @@ public abstract class ChunkGenerator {
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}
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}
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- if (structureplacement.isStructureChunk(placementCalculator, chunkcoordintpair.x, chunkcoordintpair.z)) {
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+ if (structureplacement.isStructureChunk(placementCalculator, chunkcoordintpair.x, chunkcoordintpair.z, structureplacement instanceof net.minecraft.world.level.chunk.ChunkGeneratorStructureState.KeyedRandomSpreadStructurePlacement keyed ? keyed.key : null)) { // Paper - Add missing structure set seed configs
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if (list.size() == 1) {
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this.tryGenerateStructure((StructureSet.StructureSelectionEntry) list.get(0), structureAccessor, registryManager, randomstate, structureTemplateManager, placementCalculator.getLevelSeed(), chunk, chunkcoordintpair, sectionposition);
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} else {
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diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGeneratorStructureState.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGeneratorStructureState.java
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index a310bfbf0d08187375ea17f4b04b276a0b7d0b9f..798e22fb4d685b5845ebf687e8004e94f13a9751 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGeneratorStructureState.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGeneratorStructureState.java
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@@ -50,13 +50,14 @@ public class ChunkGeneratorStructureState {
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private final Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>> ringPositions = new Object2ObjectArrayMap();
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private boolean hasGeneratedPositions;
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private final List<Holder<StructureSet>> possibleStructureSets;
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+ public final SpigotWorldConfig conf; // Paper - Add missing structure set seed configs
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public static ChunkGeneratorStructureState createForFlat(RandomState randomstate, long i, BiomeSource worldchunkmanager, Stream<Holder<StructureSet>> stream, SpigotWorldConfig conf) { // Spigot
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List<Holder<StructureSet>> list = stream.filter((holder) -> {
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return ChunkGeneratorStructureState.hasBiomesForStructureSet((StructureSet) holder.value(), worldchunkmanager);
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}).toList();
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- return new ChunkGeneratorStructureState(randomstate, worldchunkmanager, i, 0L, ChunkGeneratorStructureState.injectSpigot(list, conf)); // Spigot
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+ return new ChunkGeneratorStructureState(randomstate, worldchunkmanager, i, 0L, ChunkGeneratorStructureState.injectSpigot(list, conf), conf); // Spigot
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}
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public static ChunkGeneratorStructureState createForNormal(RandomState randomstate, long i, BiomeSource worldchunkmanager, HolderLookup<StructureSet> holderlookup, SpigotWorldConfig conf) { // Spigot
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@@ -64,14 +65,24 @@ public class ChunkGeneratorStructureState {
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return ChunkGeneratorStructureState.hasBiomesForStructureSet((StructureSet) holder_c.value(), worldchunkmanager);
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}).collect(Collectors.toUnmodifiableList());
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- return new ChunkGeneratorStructureState(randomstate, worldchunkmanager, i, i, ChunkGeneratorStructureState.injectSpigot(list, conf)); // Spigot
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+ return new ChunkGeneratorStructureState(randomstate, worldchunkmanager, i, i, ChunkGeneratorStructureState.injectSpigot(list, conf), conf); // Spigot
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}
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+ // Paper start - Add missing structure set seed configs; horrible hack because spigot creates a ton of direct Holders which lose track of the identifying key
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+ public static final class KeyedRandomSpreadStructurePlacement extends RandomSpreadStructurePlacement {
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+ public final net.minecraft.resources.ResourceKey<StructureSet> key;
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+ public KeyedRandomSpreadStructurePlacement(net.minecraft.resources.ResourceKey<StructureSet> key, net.minecraft.core.Vec3i locateOffset, FrequencyReductionMethod frequencyReductionMethod, float frequency, int salt, java.util.Optional<StructurePlacement.ExclusionZone> exclusionZone, int spacing, int separation, net.minecraft.world.level.levelgen.structure.placement.RandomSpreadType spreadType) {
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+ super(locateOffset, frequencyReductionMethod, frequency, salt, exclusionZone, spacing, separation, spreadType);
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+ this.key = key;
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+ }
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+ }
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+ // Paper end - Add missing structure set seed configs
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// Spigot start
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private static List<Holder<StructureSet>> injectSpigot(List<Holder<StructureSet>> list, SpigotWorldConfig conf) {
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return list.stream().map((holder) -> {
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StructureSet structureset = holder.value();
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- if (structureset.placement() instanceof RandomSpreadStructurePlacement randomConfig) {
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+ final Holder<StructureSet> newHolder; // Paper - Add missing structure set seed configs
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+ if (structureset.placement() instanceof RandomSpreadStructurePlacement randomConfig && holder.unwrapKey().orElseThrow().location().getNamespace().equals(net.minecraft.resources.ResourceLocation.DEFAULT_NAMESPACE)) { // Paper - Add missing structure set seed configs; check namespace cause datapacks could add structure sets with the same path
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String name = holder.unwrapKey().orElseThrow().location().getPath();
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int seed = randomConfig.salt;
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@@ -118,11 +129,27 @@ public class ChunkGeneratorStructureState {
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case "villages":
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seed = conf.villageSeed;
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break;
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+ // Paper start - Add missing structure set seed configs
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+ case "ancient_cities":
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+ seed = conf.ancientCitySeed;
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+ break;
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+ case "trail_ruins":
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+ seed = conf.trailRuinsSeed;
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+ break;
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+ case "trial_chambers":
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+ seed = conf.trialChambersSeed;
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+ break;
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+ // Paper end - Add missing structure set seed configs
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}
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- structureset = new StructureSet(structureset.structures(), new RandomSpreadStructurePlacement(randomConfig.locateOffset, randomConfig.frequencyReductionMethod, randomConfig.frequency, seed, randomConfig.exclusionZone, randomConfig.spacing(), randomConfig.separation(), randomConfig.spreadType()));
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+ // Paper start - Add missing structure set seed configs
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+ structureset = new StructureSet(structureset.structures(), new KeyedRandomSpreadStructurePlacement(holder.unwrapKey().orElseThrow(), randomConfig.locateOffset, randomConfig.frequencyReductionMethod, randomConfig.frequency, seed, randomConfig.exclusionZone, randomConfig.spacing(), randomConfig.separation(), randomConfig.spreadType()));
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+ newHolder = Holder.direct(structureset); // I really wish we didn't have to do this here
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+ } else {
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+ newHolder = holder;
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}
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- return Holder.direct(structureset);
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+ return newHolder;
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+ // Paper end - Add missing structure set seed configs
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}).collect(Collectors.toUnmodifiableList());
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}
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// Spigot end
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@@ -139,12 +166,13 @@ public class ChunkGeneratorStructureState {
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return stream.anyMatch(set::contains);
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}
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- private ChunkGeneratorStructureState(RandomState noiseConfig, BiomeSource biomeSource, long structureSeed, long concentricRingSeed, List<Holder<StructureSet>> structureSets) {
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+ private ChunkGeneratorStructureState(RandomState noiseConfig, BiomeSource biomeSource, long structureSeed, long concentricRingSeed, List<Holder<StructureSet>> structureSets, SpigotWorldConfig conf) { // Paper - Add missing structure set seed configs
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this.randomState = noiseConfig;
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this.levelSeed = structureSeed;
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this.biomeSource = biomeSource;
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this.concentricRingsSeed = concentricRingSeed;
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this.possibleStructureSets = structureSets;
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+ this.conf = conf; // Paper - Add missing structure set seed configs
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}
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public List<Holder<StructureSet>> possibleStructureSets() {
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@@ -198,7 +226,13 @@ public class ChunkGeneratorStructureState {
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HolderSet<Biome> holderset = placement.preferredBiomes();
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RandomSource randomsource = RandomSource.create();
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+ // Paper start - Add missing structure set seed configs
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+ if (this.conf.strongholdSeed != null && structureSetEntry.is(net.minecraft.world.level.levelgen.structure.BuiltinStructureSets.STRONGHOLDS)) {
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+ randomsource.setSeed(this.conf.strongholdSeed);
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+ } else {
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+ // Paper end - Add missing structure set seed configs
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randomsource.setSeed(this.concentricRingsSeed);
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+ } // Paper - Add missing structure set seed configs
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double d0 = randomsource.nextDouble() * 3.141592653589793D * 2.0D;
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int l = 0;
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int i1 = 0;
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@@ -275,7 +309,7 @@ public class ChunkGeneratorStructureState {
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for (int l = centerChunkX - chunkCount; l <= centerChunkX + chunkCount; ++l) {
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for (int i1 = centerChunkZ - chunkCount; i1 <= centerChunkZ + chunkCount; ++i1) {
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- if (structureplacement.isStructureChunk(this, l, i1)) {
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+ if (structureplacement.isStructureChunk(this, l, i1, structureplacement instanceof KeyedRandomSpreadStructurePlacement keyed ? keyed.key : null)) { // Paper - Add missing structure set seed configs
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return true;
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}
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}
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diff --git a/src/main/java/net/minecraft/world/level/levelgen/structure/placement/StructurePlacement.java b/src/main/java/net/minecraft/world/level/levelgen/structure/placement/StructurePlacement.java
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index 65dcb14241baadb2c9f8f16919d7b562198ad9c3..02e58161a0f5915084230831ee03050d762b67d2 100644
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--- a/src/main/java/net/minecraft/world/level/levelgen/structure/placement/StructurePlacement.java
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+++ b/src/main/java/net/minecraft/world/level/levelgen/structure/placement/StructurePlacement.java
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@@ -59,10 +59,24 @@ public abstract class StructurePlacement {
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return this.exclusionZone;
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}
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+ @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper - Add missing structure set seed configs
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public boolean isStructureChunk(ChunkGeneratorStructureState calculator, int chunkX, int chunkZ) {
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+ // Paper start - Add missing structure set seed configs
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+ return this.isStructureChunk(calculator, chunkX, chunkZ, null);
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+ }
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+ public boolean isStructureChunk(ChunkGeneratorStructureState calculator, int chunkX, int chunkZ, @org.jetbrains.annotations.Nullable net.minecraft.resources.ResourceKey<StructureSet> structureSetKey) {
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+ Integer saltOverride = null;
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+ if (structureSetKey != null) {
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+ if (structureSetKey == net.minecraft.world.level.levelgen.structure.BuiltinStructureSets.MINESHAFTS) {
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+ saltOverride = calculator.conf.mineshaftSeed;
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+ } else if (structureSetKey == net.minecraft.world.level.levelgen.structure.BuiltinStructureSets.BURIED_TREASURES) {
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+ saltOverride = calculator.conf.buriedTreasureSeed;
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+ }
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+ }
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+ // Paper end - Add missing structure set seed configs
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if (!this.isPlacementChunk(calculator, chunkX, chunkZ)) {
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return false;
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- } else if (this.frequency < 1.0F && !this.frequencyReductionMethod.shouldGenerate(calculator.getLevelSeed(), this.salt, chunkX, chunkZ, this.frequency)) {
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+ } else if (this.frequency < 1.0F && !this.frequencyReductionMethod.shouldGenerate(calculator.getLevelSeed(), this.salt, chunkX, chunkZ, this.frequency, saltOverride)) { // Paper - Add missing structure set seed configs
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return false;
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} else {
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return !this.exclusionZone.isPresent() || !this.exclusionZone.get().isPlacementForbidden(calculator, chunkX, chunkZ);
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@@ -77,25 +91,31 @@ public abstract class StructurePlacement {
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public abstract StructurePlacementType<?> type();
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- private static boolean probabilityReducer(long seed, int salt, int chunkX, int chunkZ, float frequency) {
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+ private static boolean probabilityReducer(long seed, int salt, int chunkX, int chunkZ, float frequency, @org.jetbrains.annotations.Nullable Integer saltOverride) { // Paper - Add missing structure set seed configs; ignore here
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WorldgenRandom worldgenRandom = new WorldgenRandom(new LegacyRandomSource(0L));
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worldgenRandom.setLargeFeatureWithSalt(seed, salt, chunkX, chunkZ);
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return worldgenRandom.nextFloat() < frequency;
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}
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- private static boolean legacyProbabilityReducerWithDouble(long seed, int salt, int chunkX, int chunkZ, float frequency) {
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+ private static boolean legacyProbabilityReducerWithDouble(long seed, int salt, int chunkX, int chunkZ, float frequency, @org.jetbrains.annotations.Nullable Integer saltOverride) { // Paper - Add missing structure set seed configs
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WorldgenRandom worldgenRandom = new WorldgenRandom(new LegacyRandomSource(0L));
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+ if (saltOverride == null) { // Paper - Add missing structure set seed configs
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worldgenRandom.setLargeFeatureSeed(seed, chunkX, chunkZ);
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+ // Paper start - Add missing structure set seed configs
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+ } else {
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+ worldgenRandom.setLargeFeatureWithSalt(seed, chunkX, chunkZ, saltOverride);
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+ }
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+ // Paper end - Add missing structure set seed configs
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return worldgenRandom.nextDouble() < (double)frequency;
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}
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- private static boolean legacyArbitrarySaltProbabilityReducer(long seed, int salt, int chunkX, int chunkZ, float frequency) {
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+ private static boolean legacyArbitrarySaltProbabilityReducer(long seed, int salt, int chunkX, int chunkZ, float frequency, @org.jetbrains.annotations.Nullable Integer saltOverride) { // Paper - Add missing structure set seed configs
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WorldgenRandom worldgenRandom = new WorldgenRandom(new LegacyRandomSource(0L));
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- worldgenRandom.setLargeFeatureWithSalt(seed, chunkX, chunkZ, 10387320);
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+ worldgenRandom.setLargeFeatureWithSalt(seed, chunkX, chunkZ, saltOverride != null ? saltOverride : HIGHLY_ARBITRARY_RANDOM_SALT); // Paper - Add missing structure set seed configs
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return worldgenRandom.nextFloat() < frequency;
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}
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- private static boolean legacyPillagerOutpostReducer(long seed, int salt, int chunkX, int chunkZ, float frequency) {
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+ private static boolean legacyPillagerOutpostReducer(long seed, int salt, int chunkX, int chunkZ, float frequency, @org.jetbrains.annotations.Nullable Integer saltOverride) { // Paper - Add missing structure set seed configs; ignore here
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int i = chunkX >> 4;
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int j = chunkZ >> 4;
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WorldgenRandom worldgenRandom = new WorldgenRandom(new LegacyRandomSource(0L));
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@@ -118,7 +138,7 @@ public abstract class StructurePlacement {
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@FunctionalInterface
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public interface FrequencyReducer {
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- boolean shouldGenerate(long seed, int salt, int chunkX, int chunkZ, float chance);
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+ boolean shouldGenerate(long seed, int salt, int chunkX, int chunkZ, float chance, @org.jetbrains.annotations.Nullable Integer saltOverride); // Paper - Add missing structure set seed configs
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}
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public static enum FrequencyReductionMethod implements StringRepresentable {
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@@ -136,8 +156,8 @@ public abstract class StructurePlacement {
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this.reducer = generationPredicate;
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}
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- public boolean shouldGenerate(long seed, int salt, int chunkX, int chunkZ, float chance) {
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- return this.reducer.shouldGenerate(seed, salt, chunkX, chunkZ, chance);
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+ public boolean shouldGenerate(long seed, int salt, int chunkX, int chunkZ, float chance, @org.jetbrains.annotations.Nullable Integer saltOverride) { // Paper - Add missing structure set seed configs
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+ return this.reducer.shouldGenerate(seed, salt, chunkX, chunkZ, chance, saltOverride); // Paper - Add missing structure set seed configs
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}
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@Override
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diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
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index 41f4416d820ed1ca2d02b457749cbb6c3dbb20af..5485df1a1b59e81f4dcedd21dd972e1fd2759573 100644
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--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
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+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
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@@ -322,6 +322,18 @@ public class SpigotWorldConfig
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public int mansionSeed;
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public int fossilSeed;
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public int portalSeed;
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+ // Paper start - add missing structure set configs
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+ public int ancientCitySeed;
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+ public int trailRuinsSeed;
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+ public int trialChambersSeed;
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+ public int buriedTreasureSeed;
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+ public Integer mineshaftSeed;
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+ public Long strongholdSeed;
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+ private <N extends Number> N getSeed(String path, java.util.function.Function<String, N> toNumberFunc) {
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+ final String value = this.getString(path, "default");
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+ return org.apache.commons.lang3.math.NumberUtils.isParsable(value) ? toNumberFunc.apply(value) : null;
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+ }
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+ // Paper end
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private void initWorldGenSeeds()
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{
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this.villageSeed = this.getInt( "seed-village", 10387312 );
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@@ -339,6 +351,14 @@ public class SpigotWorldConfig
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this.mansionSeed = this.getInt( "seed-mansion", 10387319 );
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this.fossilSeed = this.getInt( "seed-fossil", 14357921 );
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this.portalSeed = this.getInt( "seed-portal", 34222645 );
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+ // Paper start - add missing structure set configs
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+ this.ancientCitySeed = this.getInt("seed-ancientcity", 20083232);
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+ this.trailRuinsSeed = this.getInt("seed-trailruins", 83469867);
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+ this.trialChambersSeed = this.getInt("seed-trialchambers", 94251327);
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+ this.buriedTreasureSeed = this.getInt("seed-buriedtreasure", 10387320); // StructurePlacement#HIGHLY_ARBITRARY_RANDOM_SALT
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+ this.mineshaftSeed = this.getSeed("seed-mineshaft", Integer::parseInt);
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+ this.strongholdSeed = this.getSeed("seed-stronghold", Long::parseLong);
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+ // Paper end
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this.log( "Custom Map Seeds: Village: " + this.villageSeed + " Desert: " + this.desertSeed + " Igloo: " + this.iglooSeed + " Jungle: " + this.jungleSeed + " Swamp: " + this.swampSeed + " Monument: " + this.monumentSeed
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+ " Ocean: " + this.oceanSeed + " Shipwreck: " + this.shipwreckSeed + " End City: " + this.endCitySeed + " Slime: " + this.slimeSeed + " Nether: " + this.netherSeed + " Mansion: " + this.mansionSeed + " Fossil: " + this.fossilSeed + " Portal: " + this.portalSeed );
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}
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diff --git a/src/test/java/io/papermc/paper/world/structure/StructureSeedConfigTest.java b/src/test/java/io/papermc/paper/world/structure/StructureSeedConfigTest.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..9061ad5868ac18e76ae4d51d23d101c5e25f7f52
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--- /dev/null
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+++ b/src/test/java/io/papermc/paper/world/structure/StructureSeedConfigTest.java
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@@ -0,0 +1,75 @@
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+package io.papermc.paper.world.structure;
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+
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+import io.papermc.paper.configuration.PaperConfigurations;
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+import java.io.File;
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+import java.lang.reflect.Field;
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+import net.minecraft.core.Registry;
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+import net.minecraft.core.registries.Registries;
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+import net.minecraft.resources.ResourceKey;
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+import net.minecraft.resources.ResourceLocation;
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+import net.minecraft.world.level.levelgen.structure.BuiltinStructureSets;
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+import net.minecraft.world.level.levelgen.structure.StructureSet;
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+import net.minecraft.world.level.levelgen.structure.placement.StructurePlacement;
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+import org.bukkit.configuration.file.YamlConfiguration;
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+import org.bukkit.support.AbstractTestingBase;
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+import org.jetbrains.annotations.NotNull;
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+import org.junit.jupiter.api.Test;
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+import org.spigotmc.SpigotConfig;
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+import org.spigotmc.SpigotWorldConfig;
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+
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+import static org.junit.jupiter.api.Assertions.assertEquals;
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+
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+public class StructureSeedConfigTest extends AbstractTestingBase {
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+
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+ @Test
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+ public void checkStructureSeedDefaults() throws ReflectiveOperationException {
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+ SpigotConfig.config = new YamlConfiguration() {
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+ @Override
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+ public void save(final @NotNull File file) {
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+ // no-op
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+ }
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+ };
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+ final SpigotWorldConfig config = PaperConfigurations.SPIGOT_WORLD_DEFAULTS.get();
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+
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+
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+ final Registry<StructureSet> structureSets = AbstractTestingBase.REGISTRY_CUSTOM.registryOrThrow(Registries.STRUCTURE_SET);
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+ for (final ResourceKey<StructureSet> setKey : structureSets.registryKeySet()) {
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+ assertEquals(ResourceLocation.DEFAULT_NAMESPACE, setKey.location().getNamespace());
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+ final StructureSet set = structureSets.getOrThrow(setKey);
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+ if (setKey == BuiltinStructureSets.STRONGHOLDS) { // special case due to seed matching world seed
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|
+ assertEquals(0, set.placement().salt);
|
|
+ continue;
|
|
+ }
|
|
+ int salt = switch (setKey.location().getPath()) {
|
|
+ case "villages" -> config.villageSeed;
|
|
+ case "desert_pyramids" -> config.desertSeed;
|
|
+ case "igloos" -> config.iglooSeed;
|
|
+ case "jungle_temples" -> config.jungleSeed;
|
|
+ case "swamp_huts" -> config.swampSeed;
|
|
+ case "pillager_outposts" -> config.outpostSeed;
|
|
+ case "ocean_monuments" -> config.monumentSeed;
|
|
+ case "woodland_mansions" -> config.mansionSeed;
|
|
+ case "buried_treasures" -> config.buriedTreasureSeed;
|
|
+ case "mineshafts" -> config.mineshaftSeed == null ? 0 : config.mineshaftSeed; // mineshaft seed is set differently
|
|
+ case "ruined_portals" -> config.portalSeed;
|
|
+ case "shipwrecks" -> config.shipwreckSeed;
|
|
+ case "ocean_ruins" -> config.oceanSeed;
|
|
+ case "nether_complexes" -> config.netherSeed;
|
|
+ case "nether_fossils" -> config.fossilSeed;
|
|
+ case "end_cities" -> config.endCitySeed;
|
|
+ case "ancient_cities" -> config.ancientCitySeed;
|
|
+ case "trail_ruins" -> config.trailRuinsSeed;
|
|
+ case "trial_chambers" -> config.trialChambersSeed;
|
|
+ default -> throw new AssertionError("Missing structure set seed in SpigotWorldConfig for " + setKey);
|
|
+ };
|
|
+ if (setKey == BuiltinStructureSets.BURIED_TREASURES) {
|
|
+ final Field field = StructurePlacement.class.getDeclaredField("HIGHLY_ARBITRARY_RANDOM_SALT");
|
|
+ field.trySetAccessible();
|
|
+ assertEquals(0, set.placement().salt);
|
|
+ assertEquals(field.get(null), salt, "Mismatched default seed for " + setKey + ". Should be " + field.get(null));
|
|
+ continue;
|
|
+ }
|
|
+ assertEquals(set.placement().salt, salt, "Mismatched default seed for " + setKey + ". Should be " + set.placement().salt);
|
|
+ }
|
|
+ }
|
|
+}
|