80 lines
3.4 KiB
Java
80 lines
3.4 KiB
Java
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package net.minecraft.world.level.levelgen.feature;
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import com.google.common.collect.ImmutableList;
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import com.mojang.serialization.Codec;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.level.LevelAccessor;
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import net.minecraft.world.level.WorldGenLevel;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.levelgen.feature.configurations.DeltaFeatureConfiguration;
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public class DeltaFeature extends Feature<DeltaFeatureConfiguration> {
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private static final ImmutableList<Block> CANNOT_REPLACE = ImmutableList.of(
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Blocks.BEDROCK, Blocks.NETHER_BRICKS, Blocks.NETHER_BRICK_FENCE, Blocks.NETHER_BRICK_STAIRS, Blocks.NETHER_WART, Blocks.CHEST, Blocks.SPAWNER
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);
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private static final Direction[] DIRECTIONS = Direction.values();
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private static final double RIM_SPAWN_CHANCE = 0.9;
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public DeltaFeature(Codec<DeltaFeatureConfiguration> p_65550_) {
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super(p_65550_);
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}
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@Override
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public boolean place(FeaturePlaceContext<DeltaFeatureConfiguration> p_159548_) {
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boolean flag = false;
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RandomSource randomsource = p_159548_.random();
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WorldGenLevel worldgenlevel = p_159548_.level();
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DeltaFeatureConfiguration deltafeatureconfiguration = p_159548_.config();
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BlockPos blockpos = p_159548_.origin();
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boolean flag1 = randomsource.nextDouble() < 0.9;
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int i = flag1 ? deltafeatureconfiguration.rimSize().sample(randomsource) : 0;
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int j = flag1 ? deltafeatureconfiguration.rimSize().sample(randomsource) : 0;
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boolean flag2 = flag1 && i != 0 && j != 0;
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int k = deltafeatureconfiguration.size().sample(randomsource);
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int l = deltafeatureconfiguration.size().sample(randomsource);
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int i1 = Math.max(k, l);
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for (BlockPos blockpos1 : BlockPos.withinManhattan(blockpos, k, 0, l)) {
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if (blockpos1.distManhattan(blockpos) > i1) {
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break;
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}
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if (isClear(worldgenlevel, blockpos1, deltafeatureconfiguration)) {
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if (flag2) {
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flag = true;
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this.setBlock(worldgenlevel, blockpos1, deltafeatureconfiguration.rim());
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}
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BlockPos blockpos2 = blockpos1.offset(i, 0, j);
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if (isClear(worldgenlevel, blockpos2, deltafeatureconfiguration)) {
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flag = true;
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this.setBlock(worldgenlevel, blockpos2, deltafeatureconfiguration.contents());
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}
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}
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}
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return flag;
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}
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private static boolean isClear(LevelAccessor p_65552_, BlockPos p_65553_, DeltaFeatureConfiguration p_65554_) {
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BlockState blockstate = p_65552_.getBlockState(p_65553_);
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if (blockstate.is(p_65554_.contents().getBlock())) {
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return false;
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} else if (CANNOT_REPLACE.contains(blockstate.getBlock())) {
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return false;
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} else {
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for (Direction direction : DIRECTIONS) {
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boolean flag = p_65552_.getBlockState(p_65553_.relative(direction)).isAir();
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if (flag && direction != Direction.UP || !flag && direction == Direction.UP) {
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return false;
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}
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}
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return true;
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}
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}
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}
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