UpsideDownForest

src/main/java/org/betterx/bclib/api/biomes/BiomeAPI.java

@@ -747,6 +747,11 @@ public class BiomeAPI {
 
     public static void applyModifications(BiomeSource source, ResourceKey<LevelStem> dimension) {
         BCLib.LOGGER.info("Apply Modifications for " + dimension.location() + " BiomeSource " + source);
+        /*if (dimension.location().equals(LevelStem.NETHER)){
+            if (source instanceof BCLBiomeSource s) {
+                NetherBiomes.useLegacyGeneration = s.biomeSourceVersion==BCLBiomeSource.BIOME_SOURCE_VERSION_SQUARE;
+            }
+        }*/
         final Set<Holder<Biome>> biomes = source.possibleBiomes();
         List<BiConsumer<ResourceLocation, Holder<Biome>>> modifications = MODIFICATIONS.get(dimension);
         for (Holder<Biome> biomeHolder : biomes) {

src/main/java/org/betterx/bclib/api/features/BCLFeature.java

@@ -30,6 +30,14 @@ public class BCLFeature<F extends Feature<FC>, FC extends FeatureConfiguration>
             BCLib.makeID("scatter_on_solid"),
             new ScatterFeature<>(ScatterFeatureConfig.OnSolid.CODEC));
 
+    public static final Feature<ScatterFeatureConfig.ExtendTop> SCATTER_EXTEND_TOP = register(
+            BCLib.makeID("scatter_extend_top"),
+            new ScatterFeature<>(ScatterFeatureConfig.ExtendTop.CODEC));
+
+    public static final Feature<ScatterFeatureConfig.ExtendBottom> SCATTER_EXTEND_BOTTOM = register(
+            BCLib.makeID("scatter_extend_bottom"),
+            new ScatterFeature<>(ScatterFeatureConfig.ExtendBottom.CODEC));
+
     public static final Feature<RandomFeatureConfiguration> RANDOM_SELECTOR = register(
             BCLib.makeID("random_select"),
             new WeightedRandomSelectorFeature());

src/main/java/org/betterx/bclib/api/features/BCLFeatureBuilder.java

@@ -245,6 +245,10 @@ public class BCLFeatureBuilder<FC extends FeatureConfiguration, F extends Featur
         return modifier(OnEveryLayer.simple());
     }
 
+    public BCLFeatureBuilder underEveryLayer() {
+        return modifier(UnderEveryLayer.simple());
+    }
+
     public BCLFeatureBuilder spreadHorizontal(IntProvider p) {
         return modifier(RandomOffsetPlacement.horizontal(p));
     }
@@ -300,6 +304,10 @@ public class BCLFeatureBuilder<FC extends FeatureConfiguration, F extends Featur
         return modifier(new Is(BlockPredicate.anyOf(predicates), Optional.of(Direction.DOWN.getNormal())));
     }
 
+    public BCLFeatureBuilder isUnder(BlockPredicate... predicates) {
+        return modifier(new Is(BlockPredicate.anyOf(predicates), Optional.of(Direction.UP.getNormal())));
+    }
+
     public BCLFeatureBuilder findSolidCeil(int distance) {
         return modifier(FindSolidInDirection.up(distance));
     }

src/main/java/org/betterx/bclib/api/features/FastFeatures.java

@@ -145,6 +145,7 @@ public class FastFeatures {
                 )));
     }
 
+
     public static <FC extends FeatureConfiguration> BCLFeature
     simple(ResourceLocation location,
            int searchDist,
@@ -166,6 +167,7 @@ public class FastFeatures {
         return patch(location, 96, 7, 3, feature, FeatureConfiguration.NONE);
     }
 
+
     public static BCLFeature
     patch(ResourceLocation location,
           int attempts,
@@ -175,6 +177,7 @@ public class FastFeatures {
         return patch(location, attempts, xzSpread, ySpread, feature, FeatureConfiguration.NONE);
     }
 
+
     public static <FC extends FeatureConfiguration> BCLFeature
     patch(ResourceLocation location,
           int attempts,
@@ -209,4 +212,6 @@ public class FastFeatures {
                 .start(patchLocation, Feature.RANDOM_PATCH)
                 .buildAndRegister(new RandomPatchConfiguration(attempts, xzSpread, ySpread, single.getPlacedFeature()));
     }
+
+
 }

src/main/java/org/betterx/bclib/api/features/config/ScatterFeatureConfig.java

@@ -344,10 +344,14 @@ public abstract class ScatterFeatureConfig implements FeatureConfiguration {
         }
     }
 
+    public static Builder<OnSolid> startOnSolid() {
+        return Builder.start(OnSolid::new);
+    }
+
     public static class OnSolid extends ScatterFeatureConfig {
         public static final Codec<OnSolid> CODEC = buildCodec(OnSolid::new);
 
-        public OnSolid(BlockStateProvider clusterBlock,
+        protected OnSolid(BlockStateProvider clusterBlock,
                           Optional<BlockStateProvider> tipBlock,
                           Optional<BlockStateProvider> bottomBlock,
                           Optional<BlockState> baseState,
@@ -380,11 +384,6 @@ public abstract class ScatterFeatureConfig implements FeatureConfiguration {
         }
 
 
-        public static Builder<OnSolid> startOnSolid() {
-            return Builder.start(OnSolid::new);
-        }
-
-
         @Override
         public boolean isValidBase(BlockState state) {
             return BlocksHelper.isTerrain(state)
@@ -400,4 +399,113 @@ public abstract class ScatterFeatureConfig implements FeatureConfiguration {
         }
     }
 
+
+    public static Builder<ExtendTop> startExtendTop() {
+        return Builder.start(ExtendTop::new);
+    }
+
+    public static class ExtendTop extends ScatterFeatureConfig {
+        public static final Codec<ExtendTop> CODEC = buildCodec(ExtendTop::new);
+
+        protected ExtendTop(BlockStateProvider clusterBlock,
+                            Optional<BlockStateProvider> tipBlock,
+                            Optional<BlockStateProvider> bottomBlock,
+                            Optional<BlockState> baseState,
+                            float baseReplaceChance,
+                            float chanceOfDirectionalSpread,
+                            float chanceOfSpreadRadius2,
+                            float chanceOfSpreadRadius3,
+                            int minHeight,
+                            int maxHeight,
+                            float maxSpread,
+                            float sizeVariation,
+                            float floorChance,
+                            boolean growWhileFree,
+                            IntProvider spreadCount) {
+            super(clusterBlock,
+                    tipBlock,
+                    bottomBlock,
+                    baseState,
+                    baseReplaceChance,
+                    chanceOfDirectionalSpread,
+                    chanceOfSpreadRadius2,
+                    chanceOfSpreadRadius3,
+                    minHeight,
+                    maxHeight,
+                    maxSpread,
+                    sizeVariation,
+                    floorChance,
+                    growWhileFree,
+                    spreadCount);
+        }
+
+
+        @Override
+        public boolean isValidBase(BlockState state) {
+            return BlocksHelper.isTerrain(state)
+                    || baseState.map(s -> state.is(s.getBlock())).orElse(false);
+        }
+
+        @Override
+        public BlockState createBlock(int height, int maxHeight, RandomSource random, BlockPos pos) {
+            if (height == 0) return this.bottomBlock.getState(random, pos);
+            if (height == 1) return this.clusterBlock.getState(random, pos);
+            return this.tipBlock.getState(random, pos);
+        }
+    }
+
+    public static Builder<ExtendBottom> startExtendBottom() {
+        return Builder.start(ExtendBottom::new);
+    }
+
+    public static class ExtendBottom extends ScatterFeatureConfig {
+        public static final Codec<ExtendBottom> CODEC = buildCodec(ExtendBottom::new);
+
+        protected ExtendBottom(BlockStateProvider clusterBlock,
+                               Optional<BlockStateProvider> tipBlock,
+                               Optional<BlockStateProvider> bottomBlock,
+                               Optional<BlockState> baseState,
+                               float baseReplaceChance,
+                               float chanceOfDirectionalSpread,
+                               float chanceOfSpreadRadius2,
+                               float chanceOfSpreadRadius3,
+                               int minHeight,
+                               int maxHeight,
+                               float maxSpread,
+                               float sizeVariation,
+                               float floorChance,
+                               boolean growWhileFree,
+                               IntProvider spreadCount) {
+            super(clusterBlock,
+                    tipBlock,
+                    bottomBlock,
+                    baseState,
+                    baseReplaceChance,
+                    chanceOfDirectionalSpread,
+                    chanceOfSpreadRadius2,
+                    chanceOfSpreadRadius3,
+                    minHeight,
+                    maxHeight,
+                    maxSpread,
+                    sizeVariation,
+                    floorChance,
+                    growWhileFree,
+                    spreadCount);
+        }
+
+
+        @Override
+        public boolean isValidBase(BlockState state) {
+            return BlocksHelper.isTerrain(state)
+                    || baseState.map(s -> state.is(s.getBlock())).orElse(false);
+        }
+
+        @Override
+        public BlockState createBlock(int height, int maxHeight, RandomSource random, BlockPos pos) {
+            if (height == maxHeight) return this.tipBlock.getState(random, pos);
+            if (height == maxHeight - 1) return this.clusterBlock.getState(random, pos);
+            return this.bottomBlock.getState(random, pos);
+        }
+    }
+
 }

src/main/java/org/betterx/bclib/api/features/placement/PlacementModifiers.java

@@ -49,6 +49,10 @@ public class PlacementModifiers {
             "on_every_layer",
             OnEveryLayer.CODEC);
 
+    public static final PlacementModifierType<UnderEveryLayer> UNDER_EVERY_LAYER = register(
+            "under_every_layer",
+            UnderEveryLayer.CODEC);
+
 
     private static <P extends PlacementModifier> PlacementModifierType<P> register(String path, Codec<P> codec) {
         return register(BCLib.makeID(path), codec);

src/main/java/org/betterx/bclib/api/features/placement/UnderEveryLayer.java

@@ -0,0 +1,91 @@
+package org.betterx.bclib.api.features.placement;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.levelgen.Heightmap;
+import net.minecraft.world.level.levelgen.placement.PlacementContext;
+import net.minecraft.world.level.levelgen.placement.PlacementModifier;
+import net.minecraft.world.level.levelgen.placement.PlacementModifierType;
+
+import com.mojang.serialization.Codec;
+import com.mojang.serialization.codecs.RecordCodecBuilder;
+import org.betterx.bclib.util.BlocksHelper;
+
+import java.util.Optional;
+import java.util.stream.Stream;
+
+public class UnderEveryLayer
+        extends PlacementModifier {
+    private static UnderEveryLayer INSTANCE = new UnderEveryLayer(Optional.empty(), Optional.empty());
+    private static UnderEveryLayer INSTANCE_MIN_4 = new UnderEveryLayer(Optional.of(4), Optional.empty());
+    public static final Codec<UnderEveryLayer> CODEC = RecordCodecBuilder.create(instance -> instance
+            .group(
+                    Codec.INT.optionalFieldOf("min").forGetter(o -> o.minHeight),
+                    Codec.INT.optionalFieldOf("max").forGetter(o -> o.maxHeight)
+            ).apply(instance, UnderEveryLayer::new));
+
+
+    private final Optional<Integer> minHeight;
+    private final Optional<Integer> maxHeight;
+
+    private UnderEveryLayer(Optional<Integer> minHeight, Optional<Integer> maxHeight) {
+        this.minHeight = minHeight;
+
+        this.maxHeight = maxHeight;
+    }
+
+    public static UnderEveryLayer simple() {
+        return INSTANCE;
+    }
+
+    public static UnderEveryLayer min4() {
+        return INSTANCE_MIN_4;
+    }
+
+    @Override
+    public Stream<BlockPos> getPositions(PlacementContext ctx,
+                                         RandomSource random,
+                                         BlockPos pos) {
+
+        Stream.Builder<BlockPos> builder = Stream.builder();
+
+        final int z = pos.getZ();
+        final int x = pos.getX();
+        final int levelHeight = ctx.getHeight(Heightmap.Types.MOTION_BLOCKING, x, z);
+        final int minLevelHeight = ctx.getMinBuildHeight();
+        int y = maxHeight.map(h -> Math.min(levelHeight, h)).orElse(levelHeight);
+        final int minHeight = this.minHeight.map(h -> Math.max(minLevelHeight, h)).orElse(minLevelHeight);
+
+        int layerY;
+        do {
+            layerY = findUnderGroundYPosition(ctx, x, y, z, minHeight);
+            if (layerY != Integer.MAX_VALUE) {
+                builder.add(new BlockPos(x, layerY, z));
+                y = layerY - 1;
+            }
+
+        } while (layerY != Integer.MAX_VALUE);
+        return builder.build();
+    }
+
+    @Override
+    public PlacementModifierType<UnderEveryLayer> type() {
+        return PlacementModifiers.UNDER_EVERY_LAYER;
+    }
+
+    private static int findUnderGroundYPosition(PlacementContext ctx, int x, int startY, int z, int minHeight) {
+        BlockPos.MutableBlockPos mPos = new BlockPos.MutableBlockPos(x, startY, z);
+        BlockState nowState = ctx.getBlockState(mPos);
+        for (int y = startY; y >= minHeight + 1; --y) {
+            mPos.setY(y - 1);
+            BlockState belowState = ctx.getBlockState(mPos);
+            if (BlocksHelper.isTerrain(nowState) && BlocksHelper.isFreeOrFluid(belowState) && !nowState.is(Blocks.BEDROCK)) {
+                return mPos.getY();
+            }
+            nowState = belowState;
+        }
+        return Integer.MAX_VALUE;
+    }
+}

src/main/java/org/betterx/bclib/api/tag/NamedBlockTags.java

@@ -40,5 +40,8 @@ public class NamedBlockTags {
 
     static {
         TagAPI.BLOCKS.add(BlockTags.NETHER_CARVER_REPLACEABLES, Blocks.RED_SAND, Blocks.MAGMA_BLOCK);
+        TagAPI.BLOCKS.addOtherTags(BlockTags.NETHER_CARVER_REPLACEABLES,
+                CommonBlockTags.NETHER_STONES,
+                CommonBlockTags.NETHERRACK);
     }
 }