From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Byteflux Date: Wed, 2 Mar 2016 02:17:54 -0600 Subject: [PATCH] Flat bedrock generator settings Co-authored-by: Noah van der Aa diff --git a/src/main/java/net/minecraft/data/worldgen/SurfaceRuleData.java b/src/main/java/net/minecraft/data/worldgen/SurfaceRuleData.java index 06e1774dfbb667aca69bc30c9675ed472cb5728c..2f9ba60c0196c3722fbf5a44fbbcf22a85d438db 100644 --- a/src/main/java/net/minecraft/data/worldgen/SurfaceRuleData.java +++ b/src/main/java/net/minecraft/data/worldgen/SurfaceRuleData.java @@ -53,6 +53,66 @@ public class SurfaceRuleData { return overworldLike(true, false, true); } + // Paper start + // Taken from SurfaceRules$VerticalGradientConditionSource + // isRoof = true if roof, false if floor + public record PaperBedrockConditionSource(net.minecraft.resources.ResourceLocation randomName, VerticalAnchor trueAtAndBelow, VerticalAnchor falseAtAndAbove, boolean isRoof) implements SurfaceRules.ConditionSource { + + public static final net.minecraft.util.KeyDispatchDataCodec CODEC = net.minecraft.util.KeyDispatchDataCodec.of(com.mojang.serialization.codecs.RecordCodecBuilder.mapCodec((instance) -> { + return instance.group( + net.minecraft.resources.ResourceLocation.CODEC.fieldOf("random_name").forGetter(PaperBedrockConditionSource::randomName), + VerticalAnchor.CODEC.fieldOf("true_at_and_below").forGetter(PaperBedrockConditionSource::trueAtAndBelow), + VerticalAnchor.CODEC.fieldOf("false_at_and_above").forGetter(PaperBedrockConditionSource::falseAtAndAbove), + com.mojang.serialization.Codec.BOOL.fieldOf("roof").forGetter(PaperBedrockConditionSource::isRoof) + ).apply(instance, PaperBedrockConditionSource::new); + })); + + public PaperBedrockConditionSource(String randomName, net.minecraft.world.level.levelgen.VerticalAnchor trueAtAndBelow, net.minecraft.world.level.levelgen.VerticalAnchor falseAtAndAbove, boolean invert) { + this(new net.minecraft.resources.ResourceLocation(randomName), trueAtAndBelow, falseAtAndAbove, invert); + } + + @Override + public net.minecraft.util.KeyDispatchDataCodeccodec() { + return CODEC; + } + + @Override + public SurfaceRules.Condition apply(SurfaceRules.Context context) { + boolean hasFlatBedrock = context.context.getWorld().paperConfig().environment.generateFlatBedrock; + int trueAtY = this.trueAtAndBelow().resolveY(context.context); + int falseAtY = this.falseAtAndAbove().resolveY(context.context); + + int y = isRoof ? Math.max(falseAtY, trueAtY) - 1 : Math.min(falseAtY, trueAtY) ; + final int i = hasFlatBedrock ? y : trueAtY; + final int j = hasFlatBedrock ? y : falseAtY; + // TODO access transformer for randomState + final net.minecraft.world.level.levelgen.PositionalRandomFactory positionalRandomFactory = context.randomState.getOrCreateRandomFactory(this.randomName()); + + class VerticalGradientCondition extends SurfaceRules.LazyYCondition { + VerticalGradientCondition(SurfaceRules.Context context) { + super(context); + } + + @Override + protected boolean compute() { + int y = this.context.blockY; + if (y <= i) { + return true; + } else if (y >= j) { + return false; + } else { + double d = net.minecraft.util.Mth.map((double) y, (double) i, (double) j, 1.0D, 0.0D); + net.minecraft.util.RandomSource randomSource = positionalRandomFactory.at(this.context.blockX, i, this.context.blockZ); + return (double) randomSource.nextFloat() < d; + } + } + } + + return new VerticalGradientCondition(context); + } + } + // Paper end + public static SurfaceRules.RuleSource overworldLike(boolean surface, boolean bedrockRoof, boolean bedrockFloor) { SurfaceRules.ConditionSource conditionSource = SurfaceRules.yBlockCheck(VerticalAnchor.absolute(97), 2); SurfaceRules.ConditionSource conditionSource2 = SurfaceRules.yBlockCheck(VerticalAnchor.absolute(256), 0); @@ -83,11 +143,11 @@ public class SurfaceRuleData { SurfaceRules.RuleSource ruleSource9 = SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.WOODED_BADLANDS), SurfaceRules.ifTrue(conditionSource, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource16, COARSE_DIRT), SurfaceRules.ifTrue(conditionSource17, COARSE_DIRT), SurfaceRules.ifTrue(conditionSource18, COARSE_DIRT), ruleSource))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.SWAMP), SurfaceRules.ifTrue(conditionSource6, SurfaceRules.ifTrue(SurfaceRules.not(conditionSource7), SurfaceRules.ifTrue(SurfaceRules.noiseCondition(Noises.SWAMP, 0.0D), WATER)))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.MANGROVE_SWAMP), SurfaceRules.ifTrue(conditionSource5, SurfaceRules.ifTrue(SurfaceRules.not(conditionSource7), SurfaceRules.ifTrue(SurfaceRules.noiseCondition(Noises.SWAMP, 0.0D), WATER)))))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.BADLANDS, Biomes.ERODED_BADLANDS, Biomes.WOODED_BADLANDS), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource2, ORANGE_TERRACOTTA), SurfaceRules.ifTrue(conditionSource4, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource16, TERRACOTTA), SurfaceRules.ifTrue(conditionSource17, TERRACOTTA), SurfaceRules.ifTrue(conditionSource18, TERRACOTTA), SurfaceRules.bandlands())), SurfaceRules.ifTrue(conditionSource8, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.ON_CEILING, RED_SANDSTONE), RED_SAND)), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource11), ORANGE_TERRACOTTA), SurfaceRules.ifTrue(conditionSource10, WHITE_TERRACOTTA), ruleSource3)), SurfaceRules.ifTrue(conditionSource3, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource7, SurfaceRules.ifTrue(SurfaceRules.not(conditionSource4), ORANGE_TERRACOTTA)), SurfaceRules.bandlands())), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.ifTrue(conditionSource10, WHITE_TERRACOTTA)))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.ifTrue(conditionSource8, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource12, SurfaceRules.ifTrue(conditionSource11, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource9, AIR), SurfaceRules.ifTrue(SurfaceRules.temperature(), ICE), WATER))), ruleSource8))), SurfaceRules.ifTrue(conditionSource10, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.ifTrue(conditionSource12, SurfaceRules.ifTrue(conditionSource11, WATER))), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, ruleSource7), SurfaceRules.ifTrue(conditionSource14, SurfaceRules.ifTrue(SurfaceRules.DEEP_UNDER_FLOOR, SANDSTONE)), SurfaceRules.ifTrue(conditionSource15, SurfaceRules.ifTrue(SurfaceRules.VERY_DEEP_UNDER_FLOOR, SANDSTONE)))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.FROZEN_PEAKS, Biomes.JAGGED_PEAKS), STONE), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.WARM_OCEAN, Biomes.LUKEWARM_OCEAN, Biomes.DEEP_LUKEWARM_OCEAN), ruleSource2), ruleSource3))); ImmutableList.Builder builder = ImmutableList.builder(); if (bedrockRoof) { - builder.add(SurfaceRules.ifTrue(SurfaceRules.not(SurfaceRules.verticalGradient("bedrock_roof", VerticalAnchor.belowTop(5), VerticalAnchor.top())), BEDROCK)); + builder.add(SurfaceRules.ifTrue(SurfaceRules.not(new PaperBedrockConditionSource("bedrock_roof", VerticalAnchor.belowTop(5), VerticalAnchor.top(), true)), BEDROCK)); // Paper } if (bedrockFloor) { - builder.add(SurfaceRules.ifTrue(SurfaceRules.verticalGradient("bedrock_floor", VerticalAnchor.bottom(), VerticalAnchor.aboveBottom(5)), BEDROCK)); + builder.add(SurfaceRules.ifTrue(new PaperBedrockConditionSource("bedrock_floor", VerticalAnchor.bottom(), VerticalAnchor.aboveBottom(5), false), BEDROCK)); // Paper } SurfaceRules.RuleSource ruleSource10 = SurfaceRules.ifTrue(SurfaceRules.abovePreliminarySurface(), ruleSource9); @@ -112,7 +172,7 @@ public class SurfaceRuleData { SurfaceRules.ConditionSource conditionSource11 = SurfaceRules.noiseCondition(Noises.NETHER_WART, 1.17D); SurfaceRules.ConditionSource conditionSource12 = SurfaceRules.noiseCondition(Noises.NETHER_STATE_SELECTOR, 0.0D); SurfaceRules.RuleSource ruleSource = SurfaceRules.ifTrue(conditionSource9, SurfaceRules.ifTrue(conditionSource3, SurfaceRules.ifTrue(conditionSource4, GRAVEL))); - return SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.verticalGradient("bedrock_floor", VerticalAnchor.bottom(), VerticalAnchor.aboveBottom(5)), BEDROCK), SurfaceRules.ifTrue(SurfaceRules.not(SurfaceRules.verticalGradient("bedrock_roof", VerticalAnchor.belowTop(5), VerticalAnchor.top())), BEDROCK), SurfaceRules.ifTrue(conditionSource5, NETHERRACK), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.BASALT_DELTAS), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_CEILING, BASALT), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.sequence(ruleSource, SurfaceRules.ifTrue(conditionSource12, BASALT), BLACKSTONE)))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.SOUL_SAND_VALLEY), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_CEILING, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource12, SOUL_SAND), SOUL_SOIL)), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.sequence(ruleSource, SurfaceRules.ifTrue(conditionSource12, SOUL_SAND), SOUL_SOIL)))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.not(conditionSource2), SurfaceRules.ifTrue(conditionSource6, LAVA)), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.WARPED_FOREST), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource10), SurfaceRules.ifTrue(conditionSource, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource11, WARPED_WART_BLOCK), WARPED_NYLIUM)))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.CRIMSON_FOREST), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource10), SurfaceRules.ifTrue(conditionSource, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource11, NETHER_WART_BLOCK), CRIMSON_NYLIUM)))))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.NETHER_WASTES), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.ifTrue(conditionSource7, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.not(conditionSource6), SurfaceRules.ifTrue(conditionSource3, SurfaceRules.ifTrue(conditionSource4, SOUL_SAND))), NETHERRACK))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.ifTrue(conditionSource, SurfaceRules.ifTrue(conditionSource4, SurfaceRules.ifTrue(conditionSource8, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource2, GRAVEL), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource6), GRAVEL)))))))), NETHERRACK); + return SurfaceRules.sequence(SurfaceRules.ifTrue(new PaperBedrockConditionSource("bedrock_floor", VerticalAnchor.bottom(), VerticalAnchor.aboveBottom(5), false), BEDROCK), SurfaceRules.ifTrue(SurfaceRules.not(new PaperBedrockConditionSource("bedrock_roof", VerticalAnchor.belowTop(5), VerticalAnchor.top(), true)), BEDROCK), SurfaceRules.ifTrue(conditionSource5, NETHERRACK), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.BASALT_DELTAS), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_CEILING, BASALT), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.sequence(ruleSource, SurfaceRules.ifTrue(conditionSource12, BASALT), BLACKSTONE)))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.SOUL_SAND_VALLEY), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_CEILING, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource12, SOUL_SAND), SOUL_SOIL)), SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.sequence(ruleSource, SurfaceRules.ifTrue(conditionSource12, SOUL_SAND), SOUL_SOIL)))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.not(conditionSource2), SurfaceRules.ifTrue(conditionSource6, LAVA)), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.WARPED_FOREST), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource10), SurfaceRules.ifTrue(conditionSource, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource11, WARPED_WART_BLOCK), WARPED_NYLIUM)))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.CRIMSON_FOREST), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource10), SurfaceRules.ifTrue(conditionSource, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource11, NETHER_WART_BLOCK), CRIMSON_NYLIUM)))))), SurfaceRules.ifTrue(SurfaceRules.isBiome(Biomes.NETHER_WASTES), SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.UNDER_FLOOR, SurfaceRules.ifTrue(conditionSource7, SurfaceRules.sequence(SurfaceRules.ifTrue(SurfaceRules.not(conditionSource6), SurfaceRules.ifTrue(conditionSource3, SurfaceRules.ifTrue(conditionSource4, SOUL_SAND))), NETHERRACK))), SurfaceRules.ifTrue(SurfaceRules.ON_FLOOR, SurfaceRules.ifTrue(conditionSource, SurfaceRules.ifTrue(conditionSource4, SurfaceRules.ifTrue(conditionSource8, SurfaceRules.sequence(SurfaceRules.ifTrue(conditionSource2, GRAVEL), SurfaceRules.ifTrue(SurfaceRules.not(conditionSource6), GRAVEL)))))))), NETHERRACK); } public static SurfaceRules.RuleSource end() { diff --git a/src/main/java/net/minecraft/server/Bootstrap.java b/src/main/java/net/minecraft/server/Bootstrap.java index 813bf8974d0c565f8f4ba255902276156288c0f1..9525a4adddb5e3c00f1470fc2eeca16b43233428 100644 --- a/src/main/java/net/minecraft/server/Bootstrap.java +++ b/src/main/java/net/minecraft/server/Bootstrap.java @@ -75,6 +75,7 @@ public class Bootstrap { EntitySelectorOptions.bootStrap(); DispenseItemBehavior.bootStrap(); CauldronInteraction.bootStrap(); + Registry.register(net.minecraft.core.Registry.CONDITION, new net.minecraft.resources.ResourceLocation("paper", "bedrock_condition_source"), net.minecraft.data.worldgen.SurfaceRuleData.PaperBedrockConditionSource.CODEC.codec()); // Paper - register custom flat bedrock thing. TODO is this the best place to do this? Registry.freezeBuiltins(); Bootstrap.wrapStreams(); } 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 49f88abe2b9833c324d2b93f7ed3094fb5739e07..df1db87d2dd5076fccea6a1ac9271a9d786729bb 100644 --- a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java +++ b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java @@ -210,7 +210,7 @@ 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 this.buildSurface(chunk, worldgenerationcontext, noiseConfig, structures, region.getBiomeManager(), region.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY), Blender.of(region)); } @@ -238,7 +238,7 @@ 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 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..1c9d9ecdafb2bd04348045ba0404da052dcd6437 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 - public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) { + public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) { this(generator, world, null); } // Paper + public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world, @org.jetbrains.annotations.Nullable net.minecraft.world.level.Level level) { // Paper this.minY = Math.max(world.getMinBuildHeight(), generator.getMinY()); this.height = Math.min(world.getHeight(), generator.getGenDepth()); + this.level = level; // Paper } public int getMinGenY() { @@ -19,4 +22,13 @@ public class WorldGenerationContext { public int getGenDepth() { return this.height; } + + // Paper start + 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 } 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 a745458ea3581ea91a68c863e3fd0a0292d73a61..f84ee8afe95f912a972e37fbae7a06ecdd3aba06 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 @@ -21,8 +21,8 @@ public class CarvingContext extends WorldGenerationContext { private final RandomState randomState; private final SurfaceRules.RuleSource surfaceRule; - public CarvingContext(NoiseBasedChunkGenerator noiseChunkGenerator, RegistryAccess registryManager, LevelHeightAccessor heightLimitView, NoiseChunk chunkNoiseSampler, RandomState noiseConfig, SurfaceRules.RuleSource materialRule) { - super(noiseChunkGenerator, heightLimitView); + public CarvingContext(NoiseBasedChunkGenerator noiseChunkGenerator, RegistryAccess registryManager, LevelHeightAccessor heightLimitView, NoiseChunk chunkNoiseSampler, RandomState noiseConfig, SurfaceRules.RuleSource materialRule, @javax.annotation.Nullable net.minecraft.world.level.Level level) { // Paper + super(noiseChunkGenerator, heightLimitView, level); // Paper 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..53d818b0cc602f827d0b907e293515f6810c6792 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 topFeature; public PlacementContext(WorldGenLevel world, ChunkGenerator generator, Optional placedFeature) { - super(generator, world); + super(generator, world, world.getLevel()); // Paper this.level = world; this.generator = generator; this.topFeature = placedFeature;