62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
package net.minecraft.util.valueproviders;
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import com.mojang.serialization.Codec;
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import com.mojang.serialization.DataResult;
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import com.mojang.serialization.MapCodec;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import net.minecraft.util.Mth;
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import net.minecraft.util.RandomSource;
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public class UniformFloat extends FloatProvider {
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public static final MapCodec<UniformFloat> CODEC = RecordCodecBuilder.<UniformFloat>mapCodec(
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instance -> instance.group(
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Codec.FLOAT.fieldOf("min_inclusive").forGetter(uniformFloat -> uniformFloat.minInclusive),
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Codec.FLOAT.fieldOf("max_exclusive").forGetter(uniformFloat -> uniformFloat.maxExclusive)
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)
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.apply(instance, UniformFloat::new)
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)
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.validate(
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uniformFloat -> uniformFloat.maxExclusive <= uniformFloat.minInclusive
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? DataResult.error(() -> "Max must be larger than min, min_inclusive: " + uniformFloat.minInclusive + ", max_exclusive: " + uniformFloat.maxExclusive)
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: DataResult.success(uniformFloat)
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);
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private final float minInclusive;
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private final float maxExclusive;
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private UniformFloat(float minInclusive, float maxExclusive) {
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this.minInclusive = minInclusive;
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this.maxExclusive = maxExclusive;
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}
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public static UniformFloat of(float minInclusive, float maxExclusive) {
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if (maxExclusive <= minInclusive) {
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throw new IllegalArgumentException("Max must exceed min");
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} else {
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return new UniformFloat(minInclusive, maxExclusive);
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}
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}
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@Override
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public float sample(RandomSource random) {
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return Mth.randomBetween(random, this.minInclusive, this.maxExclusive);
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}
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@Override
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public float getMinValue() {
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return this.minInclusive;
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}
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@Override
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public float getMaxValue() {
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return this.maxExclusive;
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}
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@Override
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public FloatProviderType<?> getType() {
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return FloatProviderType.UNIFORM;
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}
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public String toString() {
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return "[" + this.minInclusive + "-" + this.maxExclusive + "]";
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}
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}
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