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-rw-r--r--patches/server/0998-Flat-bedrock-generator-settings.patch292
1 files changed, 292 insertions, 0 deletions
diff --git a/patches/server/0998-Flat-bedrock-generator-settings.patch b/patches/server/0998-Flat-bedrock-generator-settings.patch
new file mode 100644
index 0000000000..da68e7d65b
--- /dev/null
+++ b/patches/server/0998-Flat-bedrock-generator-settings.patch
@@ -0,0 +1,292 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Byteflux <[email protected]>
+Date: Wed, 2 Mar 2016 02:17:54 -0600
+Subject: [PATCH] Flat bedrock generator settings
+
+== AT ==
+public net.minecraft.world.level.levelgen.SurfaceRules$Condition
+public net.minecraft.world.level.levelgen.SurfaceRules$Context
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockX
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockY
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockZ
+public net.minecraft.world.level.levelgen.SurfaceRules$Context context
+public net.minecraft.world.level.levelgen.SurfaceRules$Context randomState
+public net.minecraft.world.level.levelgen.SurfaceRules$LazyYCondition
+public net.minecraft.world.level.levelgen.SurfaceRules$LazyCondition
+public net.minecraft.world.level.levelgen.SurfaceRules$VerticalGradientConditionSource
+public net.minecraft.world.level.levelgen.SurfaceRules$SurfaceRule
+
+Co-authored-by: Noah van der Aa <[email protected]>
+
+diff --git a/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java b/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..b5580727eef106fa193e450038d1b20d8d396059
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java
+@@ -0,0 +1,80 @@
++package io.papermc.paper.world.worldgen;
++
++import com.mojang.serialization.Codec;
++import com.mojang.serialization.MapCodec;
++import com.mojang.serialization.codecs.RecordCodecBuilder;
++import net.minecraft.core.Registry;
++import net.minecraft.core.registries.BuiltInRegistries;
++import net.minecraft.core.registries.Registries;
++import net.minecraft.resources.ResourceKey;
++import net.minecraft.resources.ResourceLocation;
++import net.minecraft.util.KeyDispatchDataCodec;
++import net.minecraft.util.Mth;
++import net.minecraft.util.RandomSource;
++import net.minecraft.world.level.levelgen.PositionalRandomFactory;
++import net.minecraft.world.level.levelgen.SurfaceRules;
++import net.minecraft.world.level.levelgen.VerticalAnchor;
++import org.checkerframework.checker.nullness.qual.NonNull;
++import org.checkerframework.framework.qual.DefaultQualifier;
++
++// Modelled off of SurfaceRules$VerticalGradientConditionSource
++@DefaultQualifier(NonNull.class)
++public record OptionallyFlatBedrockConditionSource(ResourceLocation randomName, VerticalAnchor trueAtAndBelow, VerticalAnchor falseAtAndAbove, boolean isRoof) implements SurfaceRules.ConditionSource {
++
++ private static final ResourceKey<MapCodec<? extends SurfaceRules.ConditionSource>> CODEC_RESOURCE_KEY = ResourceKey.create(
++ Registries.MATERIAL_CONDITION,
++ ResourceLocation.fromNamespaceAndPath(ResourceLocation.PAPER_NAMESPACE, "optionally_flat_bedrock_condition_source")
++ );
++ private static final KeyDispatchDataCodec<OptionallyFlatBedrockConditionSource> CODEC = KeyDispatchDataCodec.of(RecordCodecBuilder.mapCodec((instance) -> {
++ return instance.group(
++ ResourceLocation.CODEC.fieldOf("random_name").forGetter(OptionallyFlatBedrockConditionSource::randomName),
++ VerticalAnchor.CODEC.fieldOf("true_at_and_below").forGetter(OptionallyFlatBedrockConditionSource::trueAtAndBelow),
++ VerticalAnchor.CODEC.fieldOf("false_at_and_above").forGetter(OptionallyFlatBedrockConditionSource::falseAtAndAbove),
++ Codec.BOOL.fieldOf("is_roof").forGetter(OptionallyFlatBedrockConditionSource::isRoof)
++ ).apply(instance, OptionallyFlatBedrockConditionSource::new);
++ }));
++
++ public static void bootstrap() {
++ Registry.register(BuiltInRegistries.MATERIAL_CONDITION, CODEC_RESOURCE_KEY, CODEC.codec());
++ }
++
++ @Override
++ public KeyDispatchDataCodec<? extends SurfaceRules.ConditionSource> codec() {
++ return CODEC;
++ }
++
++ @Override
++ public SurfaceRules.Condition apply(final SurfaceRules.Context context) {
++ boolean hasFlatBedrock = context.context.getWorld().paperConfig().environment.generateFlatBedrock;
++ int tempTrueAtAndBelowY = this.trueAtAndBelow().resolveY(context.context);
++ int tempFalseAtAndAboveY = this.falseAtAndAbove().resolveY(context.context);
++
++ int flatYLevel = this.isRoof ? Math.max(tempFalseAtAndAboveY, tempTrueAtAndBelowY) - 1 : Math.min(tempFalseAtAndAboveY, tempTrueAtAndBelowY);
++ final int trueAtAndBelowY = hasFlatBedrock ? flatYLevel : tempTrueAtAndBelowY;
++ final int falseAtAndAboveY = hasFlatBedrock ? flatYLevel : tempFalseAtAndAboveY;
++
++ final PositionalRandomFactory positionalRandomFactory = context.randomState.getOrCreateRandomFactory(this.randomName());
++
++ class VerticalGradientCondition extends SurfaceRules.LazyYCondition {
++ VerticalGradientCondition(SurfaceRules.Context context) {
++ super(context);
++ }
++
++ @Override
++ protected boolean compute() {
++ int blockY = this.context.blockY;
++ if (blockY <= trueAtAndBelowY) {
++ return true;
++ } else if (blockY >= falseAtAndAboveY) {
++ return false;
++ } else {
++ double d = Mth.map(blockY, trueAtAndBelowY, falseAtAndAboveY, 1.0D, 0.0D);
++ RandomSource randomSource = positionalRandomFactory.at(this.context.blockX, blockY, this.context.blockZ);
++ return (double)randomSource.nextFloat() < d;
++ }
++ }
++ }
++
++ return new VerticalGradientCondition(context);
++ }
++}
+diff --git a/src/main/java/net/minecraft/server/Bootstrap.java b/src/main/java/net/minecraft/server/Bootstrap.java
+index 061c89b985dafc79c808dd5f0e296b9fbac2fdfc..8c2f9f549b5155b8d8fecbc22164b334805381e2 100644
+--- a/src/main/java/net/minecraft/server/Bootstrap.java
++++ b/src/main/java/net/minecraft/server/Bootstrap.java
+@@ -76,6 +76,7 @@ public class Bootstrap {
+ CauldronInteraction.bootStrap();
+ // Paper start
+ BuiltInRegistries.bootStrap(() -> {
++ io.papermc.paper.world.worldgen.OptionallyFlatBedrockConditionSource.bootstrap(); // Paper - Flat bedrock generator settings
+ });
+ // Paper end
+ CreativeModeTabs.validate();
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+index 996899cb18e6c29665b9de7a1cc97c9a4187924b..68be0d51aa64b5d917fb53dbbbdf8966d4f4abd8 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
++++ b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+@@ -206,7 +206,7 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
+ @Override
+ public void buildSurface(WorldGenRegion region, StructureManager structures, RandomState noiseConfig, ChunkAccess chunk) {
+ if (!SharedConstants.debugVoidTerrain(chunk.getPos())) {
+- WorldGenerationContext worldgenerationcontext = new WorldGenerationContext(this, region);
++ WorldGenerationContext worldgenerationcontext = new WorldGenerationContext(this, region, region.getMinecraftWorld()); // Paper - Flat bedrock generator settings
+
+ this.buildSurface(chunk, worldgenerationcontext, noiseConfig, structures, region.getBiomeManager(), region.registryAccess().registryOrThrow(Registries.BIOME), Blender.of(region));
+ }
+@@ -234,7 +234,7 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
+ return this.createNoiseChunk(ichunkaccess1, structureAccessor, Blender.of(chunkRegion), noiseConfig);
+ });
+ Aquifer aquifer = noisechunk.aquifer();
+- CarvingContext carvingcontext = new CarvingContext(this, chunkRegion.registryAccess(), chunk.getHeightAccessorForGeneration(), noisechunk, noiseConfig, ((NoiseGeneratorSettings) this.settings.value()).surfaceRule());
++ CarvingContext carvingcontext = new CarvingContext(this, chunkRegion.registryAccess(), chunk.getHeightAccessorForGeneration(), noisechunk, noiseConfig, ((NoiseGeneratorSettings) this.settings.value()).surfaceRule(), chunkRegion.getMinecraftWorld()); // Paper - Flat bedrock generator settings
+ CarvingMask carvingmask = ((ProtoChunk) chunk).getOrCreateCarvingMask(carverStep);
+
+ for (int j = -8; j <= 8; ++j) {
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java b/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
+index b99283c31193e2110f6e3f39c23dbfc2442bab2b..a34e53249668d917c9d77c6837b91360a2349bbc 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
++++ b/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
+@@ -6,10 +6,13 @@ import net.minecraft.world.level.chunk.ChunkGenerator;
+ public class WorldGenerationContext {
+ private final int minY;
+ private final int height;
++ private final @javax.annotation.Nullable net.minecraft.world.level.Level level; // Paper - Flat bedrock generator settings
+
+- public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) {
++ public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) { this(generator, world, null); } // Paper - Flat bedrock generator settings
++ public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world, @org.jetbrains.annotations.Nullable net.minecraft.world.level.Level level) { // Paper - Flat bedrock generator settings
+ this.minY = Math.max(world.getMinBuildHeight(), generator.getMinY());
+ this.height = Math.min(world.getHeight(), generator.getGenDepth());
++ this.level = level; // Paper - Flat bedrock generator settings
+ }
+
+ public int getMinGenY() {
+@@ -19,4 +22,13 @@ public class WorldGenerationContext {
+ public int getGenDepth() {
+ return this.height;
+ }
++
++ // Paper start - Flat bedrock generator settings
++ public net.minecraft.world.level.Level getWorld() {
++ if (this.level == null) {
++ throw new NullPointerException("WorldGenerationContext was initialized without a Level, but WorldGenerationContext#getWorld was called");
++ }
++ return this.level;
++ }
++ // Paper end - Flat bedrock generator settings
+ }
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java b/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
+index 390bcf9c302effd9db42d7a0e65b5433cc2eadd6..b9e919d31e442f49300744395af3cf9431e86c57 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
++++ b/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
+@@ -27,9 +27,9 @@ public class CarvingContext extends WorldGenerationContext {
+ LevelHeightAccessor heightLimitView,
+ NoiseChunk chunkNoiseSampler,
+ RandomState noiseConfig,
+- SurfaceRules.RuleSource materialRule
++ SurfaceRules.RuleSource materialRule, @javax.annotation.Nullable net.minecraft.world.level.Level level // Paper - Flat bedrock generator settings
+ ) {
+- super(noiseChunkGenerator, heightLimitView);
++ super(noiseChunkGenerator, heightLimitView, level); // Paper - Flat bedrock generator settings
+ this.registryAccess = registryManager;
+ this.noiseChunk = chunkNoiseSampler;
+ this.randomState = noiseConfig;
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java b/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
+index 640c2683c842655bbaee8f293f1c2613ef44844e..c7dfd844c7846281ceff0d443c0160054fd36c5c 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
++++ b/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
+@@ -18,7 +18,7 @@ public class PlacementContext extends WorldGenerationContext {
+ private final Optional<PlacedFeature> topFeature;
+
+ public PlacementContext(WorldGenLevel world, ChunkGenerator generator, Optional<PlacedFeature> placedFeature) {
+- super(generator, world);
++ super(generator, world, world.getLevel()); // Paper - Flat bedrock generator settings
+ this.level = world;
+ this.generator = generator;
+ this.topFeature = placedFeature;
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json b/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
+index 3f61ea695aa6a91a0cacf1fa8dc0a9bdc6fa36e6..02d32bbdbc795db271205bef95e6987ac34b0136 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
++++ b/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
+@@ -389,7 +389,8 @@
+ {
+ "type": "minecraft:condition",
+ "if_true": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": false,
+ "false_at_and_above": {
+ "above_bottom": 5
+ },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json b/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
+index 1fe9ce904cba21ff4e6efb948a0bc274a22bcb0b..2e8c1aad10a2b0adbdee4180cfc1902984b6565b 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
++++ b/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
+@@ -110,7 +110,8 @@
+ "if_true": {
+ "type": "minecraft:not",
+ "invert": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": true,
+ "false_at_and_above": {
+ "below_top": 0
+ },
+@@ -130,7 +131,8 @@
+ {
+ "type": "minecraft:condition",
+ "if_true": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": false,
+ "false_at_and_above": {
+ "above_bottom": 5
+ },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json b/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
+index f4c34de998d78a80bc026d8e0d423c9bed9bbf8a..fd5bd5474b8f931f2e04706997e71cd5145a5a82 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
++++ b/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
+@@ -389,7 +389,8 @@
+ {
+ "type": "minecraft:condition",
+ "if_true": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": false,
+ "false_at_and_above": {
+ "above_bottom": 5
+ },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json b/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
+index 6219d25fcdbc761debc1d1e357757d1b977dc0b0..1657179b8c3f7e549e3b8774ecb75f292ae79c38 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
++++ b/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
+@@ -108,7 +108,8 @@
+ {
+ "type": "minecraft:condition",
+ "if_true": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": false,
+ "false_at_and_above": {
+ "above_bottom": 5
+ },
+@@ -129,7 +130,8 @@
+ "if_true": {
+ "type": "minecraft:not",
+ "invert": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": true,
+ "false_at_and_above": {
+ "below_top": 0
+ },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json b/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
+index da3bda6167859f4ddf7d76ec2053f40b2139c13e..70beb7665a43a06b4afcb3c77aa77f923cb444cb 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
++++ b/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
+@@ -389,7 +389,8 @@
+ {
+ "type": "minecraft:condition",
+ "if_true": {
+- "type": "minecraft:vertical_gradient",
++ "type": "paper:optionally_flat_bedrock_condition_source",
++ "is_roof": false,
+ "false_at_and_above": {
+ "above_bottom": 5
+ },