72 lines
2.8 KiB
Java
72 lines
2.8 KiB
Java
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package net.minecraft.world.level.levelgen.heightproviders;
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import com.mojang.logging.LogUtils;
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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 net.minecraft.util.Mth;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.level.levelgen.VerticalAnchor;
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import net.minecraft.world.level.levelgen.WorldGenerationContext;
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import org.slf4j.Logger;
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public class TrapezoidHeight extends HeightProvider {
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public static final MapCodec<TrapezoidHeight> CODEC = RecordCodecBuilder.mapCodec(
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p_162005_ -> p_162005_.group(
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VerticalAnchor.CODEC.fieldOf("min_inclusive").forGetter(p_162021_ -> p_162021_.minInclusive),
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VerticalAnchor.CODEC.fieldOf("max_inclusive").forGetter(p_162019_ -> p_162019_.maxInclusive),
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Codec.INT.optionalFieldOf("plateau", 0).forGetter(p_162014_ -> p_162014_.plateau)
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)
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.apply(p_162005_, TrapezoidHeight::new)
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);
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private static final Logger LOGGER = LogUtils.getLogger();
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private final VerticalAnchor minInclusive;
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private final VerticalAnchor maxInclusive;
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private final int plateau;
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private TrapezoidHeight(VerticalAnchor p_162000_, VerticalAnchor p_162001_, int p_162002_) {
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this.minInclusive = p_162000_;
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this.maxInclusive = p_162001_;
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this.plateau = p_162002_;
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}
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public static TrapezoidHeight of(VerticalAnchor p_162010_, VerticalAnchor p_162011_, int p_162012_) {
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return new TrapezoidHeight(p_162010_, p_162011_, p_162012_);
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}
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public static TrapezoidHeight of(VerticalAnchor p_162007_, VerticalAnchor p_162008_) {
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return of(p_162007_, p_162008_, 0);
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}
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@Override
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public int sample(RandomSource p_226305_, WorldGenerationContext p_226306_) {
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int i = this.minInclusive.resolveY(p_226306_);
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int j = this.maxInclusive.resolveY(p_226306_);
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if (i > j) {
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LOGGER.warn("Empty height range: {}", this);
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return i;
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} else {
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int k = j - i;
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if (this.plateau >= k) {
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return Mth.randomBetweenInclusive(p_226305_, i, j);
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} else {
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int l = (k - this.plateau) / 2;
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int i1 = k - l;
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return i + Mth.randomBetweenInclusive(p_226305_, 0, i1) + Mth.randomBetweenInclusive(p_226305_, 0, l);
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}
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}
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}
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@Override
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public HeightProviderType<?> getType() {
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return HeightProviderType.TRAPEZOID;
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}
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@Override
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public String toString() {
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return this.plateau == 0
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? "triangle (" + this.minInclusive + "-" + this.maxInclusive + ")"
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: "trapezoid(" + this.plateau + ") in [" + this.minInclusive + "-" + this.maxInclusive + "]";
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}
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}
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