59 lines
2.4 KiB
Java
59 lines
2.4 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.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 BiasedToBottomHeight extends HeightProvider {
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public static final MapCodec<BiasedToBottomHeight> CODEC = RecordCodecBuilder.mapCodec(
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p_161930_ -> p_161930_.group(
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VerticalAnchor.CODEC.fieldOf("min_inclusive").forGetter(p_161943_ -> p_161943_.minInclusive),
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VerticalAnchor.CODEC.fieldOf("max_inclusive").forGetter(p_161941_ -> p_161941_.maxInclusive),
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Codec.intRange(1, Integer.MAX_VALUE).optionalFieldOf("inner", 1).forGetter(p_161936_ -> p_161936_.inner)
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)
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.apply(p_161930_, BiasedToBottomHeight::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 inner;
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private BiasedToBottomHeight(VerticalAnchor p_161925_, VerticalAnchor p_161926_, int p_161927_) {
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this.minInclusive = p_161925_;
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this.maxInclusive = p_161926_;
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this.inner = p_161927_;
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}
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public static BiasedToBottomHeight of(VerticalAnchor p_161932_, VerticalAnchor p_161933_, int p_161934_) {
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return new BiasedToBottomHeight(p_161932_, p_161933_, p_161934_);
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}
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@Override
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public int sample(RandomSource p_226297_, WorldGenerationContext p_226298_) {
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int i = this.minInclusive.resolveY(p_226298_);
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int j = this.maxInclusive.resolveY(p_226298_);
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if (j - i - this.inner + 1 <= 0) {
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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 = p_226297_.nextInt(j - i - this.inner + 1);
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return p_226297_.nextInt(k + this.inner) + i;
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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.BIASED_TO_BOTTOM;
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}
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@Override
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public String toString() {
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return "biased[" + this.minInclusive + "-" + this.maxInclusive + " inner: " + this.inner + "]";
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}
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}
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