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https://github.com/YatopiaMC/Yatopia.git
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2b78178637
Upstream/An Sidestream has released updates that appears to apply and compile correctly This update has NOT been tested by YatopiaMC and as with ANY update, please do your own testing. Tuinity Changes: 69e6a4c Updated Upstream (Paper) Purpur Changes: 391f9ad Updated Upstream (Paper)
170 lines
8.3 KiB
Diff
170 lines
8.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: JellySquid <jellysquid+atwork@protonmail.com>
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Date: Fri, 23 Oct 2020 16:45:51 -0500
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Subject: [PATCH] lithium NoiseChunkGeneratorMixin
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Additional Optimizations By YatopiaMC,
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Original code by SuperCoder79, licensed under LGPLv3
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you can find the original code on https://github.com/jellysquid3/lithium-fabric/ (Yarn mappings)
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diff --git a/src/main/java/net/minecraft/server/ChunkGeneratorAbstract.java b/src/main/java/net/minecraft/server/ChunkGeneratorAbstract.java
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index 321ebe8891defb46f3ad3dfea37c9bb6e2025ad7..fa60285c0c48147ad09b9197bfe577f504dd34bd 100644
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--- a/src/main/java/net/minecraft/server/ChunkGeneratorAbstract.java
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+++ b/src/main/java/net/minecraft/server/ChunkGeneratorAbstract.java
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@@ -5,6 +5,8 @@ import com.mojang.serialization.codecs.RecordCodecBuilder;
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import it.unimi.dsi.fastutil.objects.ObjectArrayList;
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import it.unimi.dsi.fastutil.objects.ObjectList;
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import it.unimi.dsi.fastutil.objects.ObjectListIterator;
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+import org.apache.commons.math3.util.FastMath; // Yatopia Fast Math
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+
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import java.util.Iterator;
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import java.util.List;
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import java.util.Random;
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@@ -111,7 +113,15 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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return this.w == i && ((GeneratorSettingBase) this.h.get()).a(resourcekey);
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}
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+ // Yatopia start
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+ private static double sampleOctave(NoiseGeneratorPerlin sampler, double x, double y, double z, double scaledVerticalSize, double scaledY, double frequency) {
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+ return sampler.sample(x, y, z, scaledVerticalSize, scaledY) / frequency;
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+ }
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+ // Yatopia end
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+
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private double a(int i, int j, int k, double d0, double d1, double d2, double d3) {
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+ // Yatopia start - replaced logic
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+ /*
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double d4 = 0.0D;
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double d5 = 0.0D;
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double d6 = 0.0D;
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@@ -147,7 +157,85 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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}
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return MathHelper.b(d4 / 512.0D, d5 / 512.0D, (d6 / 10.0D + 1.0D) / 2.0D);
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+ */
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+ double frequency = 1.0;
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+ double interpolationValue = 0.0;
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+
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+ // Calculate interpolation data to decide what noise to sample.
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+ for (int octave = 0; octave < 8; octave++) {
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+ double scaledVerticalScale = d3 * frequency;
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+ double scaledY = j * scaledVerticalScale;
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+
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+ interpolationValue += sampleOctave(this.s.a(octave),
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+ NoiseGeneratorOctaves.a(i * d2 * frequency),
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+ NoiseGeneratorOctaves.a(scaledY),
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+ NoiseGeneratorOctaves.a(k * d2 * frequency), scaledVerticalScale, scaledY, frequency);
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+
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+ frequency /= 2.0;
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+ }
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+
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+ double clampedInterpolation = (interpolationValue / 10.0 + 1.0) / 2.0;
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+
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+ if (clampedInterpolation >= 1) {
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+ // Sample only upper noise, as the lower noise will be interpolated out.
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+ frequency = 1.0;
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+ double noise = 0.0;
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+ for (int octave = 0; octave < 16; octave++) {
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+ double scaledVerticalScale = d1 * frequency;
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+ double scaledY = j * scaledVerticalScale;
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+
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+ noise += sampleOctave(this.r.a(octave),
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+ NoiseGeneratorOctaves.a(i * d0 * frequency),
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+ NoiseGeneratorOctaves.a(scaledY),
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+ NoiseGeneratorOctaves.a(k * d0 * frequency), scaledVerticalScale, scaledY, frequency);
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+
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+ frequency /= 2.0;
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+ }
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+
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+ return noise / 512.0;
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+ } else if (clampedInterpolation <= 0) {
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+ // Sample only lower noise, as the upper noise will be interpolated out.
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+ frequency = 1.0;
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+ double noise = 0.0;
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+ for (int octave = 0; octave < 16; octave++) {
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+ double scaledVerticalScale = d1 * frequency;
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+ double scaledY = j * scaledVerticalScale;
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+ noise += sampleOctave(this.q.a(octave),
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+ NoiseGeneratorOctaves.a(i * d0 * frequency),
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+ NoiseGeneratorOctaves.a(scaledY),
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+ NoiseGeneratorOctaves.a(k * d0 * frequency), scaledVerticalScale, scaledY, frequency);
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+
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+ frequency /= 2.0;
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+ }
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+
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+ return noise / 512.0;
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+ } else {
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+ // [VanillaCopy] SurfaceChunkGenerator#sampleNoise
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+ // Sample both and interpolate, as in vanilla.
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+
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+ frequency = 1.0;
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+ double lowerNoise = 0.0;
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+ double upperNoise = 0.0;
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+
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+ for (int octave = 0; octave < 16; octave++) {
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+ // Pre calculate these values to share them
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+ double scaledVerticalScale = d1 * frequency;
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+ double scaledY = j * scaledVerticalScale;
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+ double xVal = NoiseGeneratorOctaves.a(i * d0 * frequency);
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+ double yVal = NoiseGeneratorOctaves.a(scaledY);
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+ double zVal = NoiseGeneratorOctaves.a(k * d0 * frequency);
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+
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+ upperNoise += sampleOctave(this.r.a(octave), xVal, yVal, zVal, scaledVerticalScale, scaledY, frequency);
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+ lowerNoise += sampleOctave(this.q.a(octave), xVal, yVal, zVal, scaledVerticalScale, scaledY, frequency);
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+
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+ frequency /= 2.0;
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+ }
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+
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+ // Vanilla behavior, return interpolated noise
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+ return MathHelper.d(clampedInterpolation, lowerNoise / 512.0, upperNoise / 512.0);
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+ }
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}
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+ // Yatopia end
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private double[] b(int i, int j) {
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double[] adouble = new double[this.o + 1];
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@@ -273,7 +361,7 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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double d2 = d1 * 24.575625D - 2.0D;
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- return d2 < 0.0D ? d2 * 0.009486607142857142D : Math.min(d2, 1.0D) * 0.006640625D;
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+ return d2 < 0.0D ? d2 * 0.009486607142857142D : FastMath.min(d2, 1.0D) * 0.006640625D; // Yatopia Fast Math
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}
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@Override
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@@ -290,10 +378,10 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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}
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private int a(int i, int j, @Nullable IBlockData[] aiblockdata, @Nullable Predicate<IBlockData> predicate) {
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- int k = Math.floorDiv(i, this.m);
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- int l = Math.floorDiv(j, this.m);
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- int i1 = Math.floorMod(i, this.m);
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- int j1 = Math.floorMod(j, this.m);
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+ int k = FastMath.floorDiv(i, this.m); // Yatopia Fast Math
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+ int l = FastMath.floorDiv(j, this.m); // Yatopia Fast Math
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+ int i1 = FastMath.floorMod(i, this.m); // Yatopia Fast Math
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+ int j1 = FastMath.floorMod(j, this.m); // Yatopia Fast Math
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double d0 = (double) i1 / (double) this.m;
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double d1 = (double) j1 / (double) this.m;
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double[][] adouble = new double[][]{this.b(k, l), this.b(k, l + 1), this.b(k + 1, l), this.b(k + 1, l + 1)};
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@@ -532,9 +620,9 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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StructurePiece structurepiece = (StructurePiece) objectlistiterator.next();
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StructureBoundingBox structureboundingbox = structurepiece.g();
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- k4 = Math.max(0, Math.max(structureboundingbox.a - j3, j3 - structureboundingbox.d));
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+ k4 = FastMath.max(0, FastMath.max(structureboundingbox.a - j3, j3 - structureboundingbox.d)); // Yatopia Fast Math
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l4 = j2 - (structureboundingbox.b + (structurepiece instanceof WorldGenFeaturePillagerOutpostPoolPiece ? ((WorldGenFeaturePillagerOutpostPoolPiece) structurepiece).d() : 0));
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- i5 = Math.max(0, Math.max(structureboundingbox.c - i4, i4 - structureboundingbox.f));
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+ i5 = FastMath.max(0, FastMath.max(structureboundingbox.c - i4, i4 - structureboundingbox.f)); // Yatopia Fast Math
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}
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objectlistiterator.back(objectlist.size());
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@@ -589,7 +677,7 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
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double d0 = (double) (i * i + k * k);
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double d1 = (double) j + 0.5D;
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double d2 = d1 * d1;
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- double d3 = Math.pow(2.718281828459045D, -(d2 / 16.0D + d0 / 16.0D));
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+ double d3 = FastMath.pow(2.718281828459045D, -(d2 / 16.0D + d0 / 16.0D)); // Yatopia Fast Math
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double d4 = -d1 * MathHelper.i(d2 / 2.0D + d0 / 2.0D) / 2.0D;
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return d4 * d3;
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