58 lines
2.1 KiB
Java
58 lines
2.1 KiB
Java
package com.hypixel.hytale.builtin.hytalegenerator.density.nodes;
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import com.hypixel.hytale.builtin.hytalegenerator.density.Density;
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import com.hypixel.hytale.builtin.hytalegenerator.fields.FastNoiseLite;
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import com.hypixel.hytale.math.vector.Vector3d;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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public class FastGradientWarpDensity extends Density {
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private static final double HALF_PI = Math.PI / 2;
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@Nullable
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private Density input;
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private final double warpScale;
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@Nonnull
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private final FastNoiseLite warper;
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public FastGradientWarpDensity(
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@Nonnull Density input, float warpLacunarity, float warpPersistence, int warpOctaves, float warpScale, float warpFactor, int seed
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) {
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if (warpOctaves < 0.0) {
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throw new IllegalArgumentException();
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} else {
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this.warpScale = warpScale;
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this.input = input;
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this.warper = new FastNoiseLite();
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this.warper.setSeed(seed);
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this.warper.SetFractalGain(warpPersistence);
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this.warper.SetFractalLacunarity(warpLacunarity);
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this.warper.setDomainWarpType(FastNoiseLite.DomainWarpType.OpenSimplex2);
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this.warper.setFractalOctaves(warpOctaves);
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this.warper.setDomainWarpAmp(warpFactor);
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this.warper.setDomainWarpFreq(warpScale);
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}
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}
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@Override
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public double process(@Nonnull Density.Context context) {
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if (this.input == null) {
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return 0.0;
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} else {
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FastNoiseLite.Vector3 warpedPosition = new FastNoiseLite.Vector3(context.position.x, context.position.y, context.position.z);
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this.warper.DomainWarpFractalProgressive(warpedPosition);
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Density.Context childContext = new Density.Context(context);
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childContext.position = new Vector3d(warpedPosition.x, warpedPosition.y, warpedPosition.z);
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return this.input.process(childContext);
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}
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}
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@Override
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public void setInputs(@Nonnull Density[] inputs) {
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if (inputs.length == 1) {
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this.input = inputs[0];
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} else {
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this.input = null;
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}
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}
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}
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