74 lines
3.5 KiB
Java
74 lines
3.5 KiB
Java
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package net.minecraft.world.level.levelgen.placement;
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import com.mojang.serialization.Codec;
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import com.mojang.serialization.MapCodec;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import com.mojang.serialization.codecs.RecordCodecBuilder.Instance;
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import java.util.stream.Stream;
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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.WorldGenLevel;
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import net.minecraft.world.level.levelgen.blockpredicates.BlockPredicate;
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public class EnvironmentScanPlacement extends PlacementModifier {
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private final Direction directionOfSearch;
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private final BlockPredicate targetCondition;
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private final BlockPredicate allowedSearchCondition;
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private final int maxSteps;
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public static final MapCodec<EnvironmentScanPlacement> CODEC = RecordCodecBuilder.mapCodec(
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p_191650_ -> p_191650_.group(
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Direction.VERTICAL_CODEC.fieldOf("direction_of_search").forGetter(p_191672_ -> p_191672_.directionOfSearch),
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BlockPredicate.CODEC.fieldOf("target_condition").forGetter(p_191670_ -> p_191670_.targetCondition),
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BlockPredicate.CODEC.optionalFieldOf("allowed_search_condition", BlockPredicate.alwaysTrue()).forGetter(p_191668_ -> p_191668_.allowedSearchCondition),
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Codec.intRange(1, 32).fieldOf("max_steps").forGetter(p_191652_ -> p_191652_.maxSteps)
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)
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.apply(p_191650_, EnvironmentScanPlacement::new)
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);
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private EnvironmentScanPlacement(Direction p_191645_, BlockPredicate p_191646_, BlockPredicate p_191647_, int p_191648_) {
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this.directionOfSearch = p_191645_;
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this.targetCondition = p_191646_;
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this.allowedSearchCondition = p_191647_;
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this.maxSteps = p_191648_;
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}
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public static EnvironmentScanPlacement scanningFor(Direction p_191658_, BlockPredicate p_191659_, BlockPredicate p_191660_, int p_191661_) {
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return new EnvironmentScanPlacement(p_191658_, p_191659_, p_191660_, p_191661_);
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}
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public static EnvironmentScanPlacement scanningFor(Direction p_191654_, BlockPredicate p_191655_, int p_191656_) {
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return scanningFor(p_191654_, p_191655_, BlockPredicate.alwaysTrue(), p_191656_);
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}
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@Override
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public Stream<BlockPos> getPositions(PlacementContext p_226336_, RandomSource p_226337_, BlockPos p_226338_) {
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BlockPos.MutableBlockPos blockpos$mutableblockpos = p_226338_.mutable();
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WorldGenLevel worldgenlevel = p_226336_.getLevel();
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if (!this.allowedSearchCondition.test(worldgenlevel, blockpos$mutableblockpos)) {
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return Stream.of();
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} else {
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for (int i = 0; i < this.maxSteps; i++) {
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if (this.targetCondition.test(worldgenlevel, blockpos$mutableblockpos)) {
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return Stream.of(blockpos$mutableblockpos);
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}
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blockpos$mutableblockpos.move(this.directionOfSearch);
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if (worldgenlevel.isOutsideBuildHeight(blockpos$mutableblockpos.getY())) {
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return Stream.of();
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}
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if (!this.allowedSearchCondition.test(worldgenlevel, blockpos$mutableblockpos)) {
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break;
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}
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}
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return this.targetCondition.test(worldgenlevel, blockpos$mutableblockpos) ? Stream.of(blockpos$mutableblockpos) : Stream.of();
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}
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}
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@Override
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public PlacementModifierType<?> type() {
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return PlacementModifierType.ENVIRONMENT_SCAN;
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}
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}
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