mirror of
https://github.com/YatopiaMC/Yatopia.git
synced 2024-08-23 14:22:47 +02:00
189 lines
7.3 KiB
Diff
189 lines
7.3 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: Sat, 26 Sep 2020 11:37:25 -0500
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Subject: [PATCH] lithium PerlinNoiseSamplerMixin
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Original code by JellySquid, 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/NoiseGeneratorPerlin.java b/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
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index d7ca619b228e2a5a461085e0c5222e6a36a66fe0..03ba6b41b9720122464a5b2bf07fd07ae89a00c3 100644
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--- a/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
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+++ b/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
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@@ -8,6 +8,12 @@ public final class NoiseGeneratorPerlin {
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public final double a;
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public final double b;
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public final double c;
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+ //Yatopia Faster Perlin
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+ private static final int GRADIENT_STRIDE = 4;
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+ private static final int GRADIENT_STRIDE_SH = 2;
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+
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+ private final byte[] gradientTable = new byte[256 * GRADIENT_STRIDE];
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+ //Yatopia End
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public NoiseGeneratorPerlin(Random random) {
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this.a = random.nextDouble() * 256.0D;
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@@ -29,8 +35,42 @@ public final class NoiseGeneratorPerlin {
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this.d[i + j] = b0;
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}
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+ for (i = 0; i < 256; i++) {
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+ int hash = this.d[i & 255] & 15;
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+
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+ for (int j = 0; j < 3; j++) {
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+ this.gradientTable[(i * GRADIENT_STRIDE) + j] = (byte) NoiseGenerator3Handler.a[hash][j];
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+ }
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+ }
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}
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+
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+
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+ public final double sample(double x, double y, double z, double d, double e) { return a(x, y, z, d, e); } // Yatopia - OBFHELPER
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+ public double a(double x, double y, double z, double d, double e) {
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+ final double ox = x + this.a;
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+ final double oy = y + this.b;
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+ final double oz = z + this.c;
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+
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+ final double fox = Math.floor(ox);
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+ final double foy = Math.floor(oy);
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+ final double foz = Math.floor(oz);
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+
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+ double oox = ox - fox;
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+ double ooy = oy - foy;
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+ double ooz = oz - foz;
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+
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+ final double fx = MathHelper.j(oox);
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+ final double fy = MathHelper.j(ooy);
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+ final double fz = MathHelper.j(ooz);
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+
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+ if (d != 0.0D) {
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+ ooy = ooy - (Math.floor(Math.min(e, ooy) / d) * d);
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+ }
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+
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+ return this.sample((int) fox, (int) foy, (int) foz, oox, ooy, ooz, fx, fy, fz);
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+ }
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+ /* //Yatopa Start - Replace Logic
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public double a(double d0, double d1, double d2, double d3, double d4) {
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double d5 = d0 + this.a;
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double d6 = d1 + this.b;
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@@ -55,7 +95,7 @@ public final class NoiseGeneratorPerlin {
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}
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return this.a(i, j, k, d8, d9 - d14, d10, d11, d12, d13);
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- }
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+ } */ //Yatopia End
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private static double a(int i, double d0, double d1, double d2) {
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int j = i & 15;
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@@ -67,6 +107,103 @@ public final class NoiseGeneratorPerlin {
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return this.d[i & 255] & 255;
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}
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+ public final double sample(int i, int j, int k, double d0, double d1, double d2, double d3, double d4, double d5) { return a(i, j, k, d0, d1, d2, d3, d4, d5); } // Yatopia - OBFHELPER
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+ public double a(int sectionX, int sectionY, int sectionZ, double localX1, double localY1, double localZ1, double fadeLocalX, double fadeLocalY, double fadeLocalZ) {
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+ final byte[] perm = this.d;
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+
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+ final int i = (perm[sectionX & 255] & 255) + sectionY;
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+ final int l = (perm[(sectionX + 1) & 255] & 255) + sectionY;
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+
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+ final int j = (perm[255 & i] & 255) + sectionZ;
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+ final int m = (perm[l & 255] & 255) + sectionZ;
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+
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+ final int k = (perm[(i + 1) & 255] & 255) + sectionZ;
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+ final int n = (perm[(l + 1) & 255] & 255) + sectionZ;
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+
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+ final double localX2 = localX1 - 1.0D;
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+ final double localY2 = localY1 - 1.0D;
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+ final double localZ2 = localZ1 - 1.0D;
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+
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+ final int d00 = (j & 255) << GRADIENT_STRIDE_SH;
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+ final int d01 = (m & 255) << GRADIENT_STRIDE_SH;
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+ final int d02 = (k & 255) << GRADIENT_STRIDE_SH;
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+ final int d03 = (n & 255) << GRADIENT_STRIDE_SH;
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+
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+ final int d10 = ((j + 1) & 255) << GRADIENT_STRIDE_SH;
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+ final int d11 = ((m + 1) & 255) << GRADIENT_STRIDE_SH;
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+ final int d12 = ((k + 1) & 255) << GRADIENT_STRIDE_SH;
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+ final int d13 = ((n + 1) & 255) << GRADIENT_STRIDE_SH;
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+
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+ final byte[] grad = this.gradientTable;
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+
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+ final double g00x = grad[d00] * localX1;
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+ final double g00y = grad[d00 + 1] * localY1;
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+ final double g00z = grad[d00 + 2] * localZ1;
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+
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+ final double g01x = grad[d01] * localX2;
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+ final double g01y = grad[d01 + 1] * localY1;
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+ final double g01z = grad[d01 + 2] * localZ1;
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+
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+ final double g02x = grad[d02] * localX1;
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+ final double g02y = grad[d02 + 1] * localY2;
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+ final double g02z = grad[d02 + 2] * localZ1;
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+
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+ final double g03x = grad[d03] * localX2;
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+ final double g03y = grad[d03 + 1] * localY2;
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+ final double g03z = grad[d03 + 2] * localZ1;
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+
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+ final double g10x = grad[d10] * localX1;
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+ final double g10y = grad[d10 + 1] * localY1;
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+ final double g10z = grad[d10 + 2] * localZ2;
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+
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+ final double g11x = grad[d11] * localX2;
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+ final double g11y = grad[d11 + 1] * localY1;
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+ final double g11z = grad[d11 + 2] * localZ2;
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+
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+ final double g12x = grad[d12] * localX1;
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+ final double g12y = grad[d12 + 1] * localY2;
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+ final double g12z = grad[d12 + 2] * localZ2;
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+
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+ final double g13x = grad[d13] * localX2;
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+ final double g13y = grad[d13 + 1] * localY2;
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+ final double g13z = grad[d13 + 2] * localZ2;
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+
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+ final double g00 = g00x + g00y + g00z;
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+ final double g01 = g01x + g01y + g01z;
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+ final double g02 = g02x + g02y + g02z;
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+ final double g03 = g03x + g03y + g03z;
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+ final double g10 = g10x + g10y + g10z;
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+ final double g11 = g11x + g11y + g11z;
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+ final double g12 = g12x + g12y + g12z;
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+ final double g13 = g13x + g13y + g13z;
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+
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+ final double ba1 = g01 - g00;
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+ final double ba2 = g11 - g10;
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+ final double dc1 = g03 - g02;
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+ final double dc2 = g13 - g12;
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+
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+ final double dba1 = fadeLocalX * ba1;
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+ final double dba2 = fadeLocalX * ba2;
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+ final double ddc1 = fadeLocalX * dc1;
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+ final double ddc2 = fadeLocalX * dc2;
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+
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+ final double dd0 = g00 + dba1;
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+ final double dd1 = g10 + dba2;
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+ final double dd2 = g02 + ddc1;
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+ final double dd3 = g12 + ddc2;
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+
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+ final double aa0 = dd2 - dd0;
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+ final double aa1 = dd3 - dd1;
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+
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+ final double y20 = fadeLocalY * aa0;
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+ final double y31 = fadeLocalY * aa1;
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+
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+ final double aa2 = dd0 + y20;
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+ final double aa3 = dd1 + y31;
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+
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+ return dd0 + y20 + (fadeLocalZ * (aa3 - aa2));
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+ }
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+ /* //Yatopa Start - Replace Logic
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public double a(int i, int j, int k, double d0, double d1, double d2, double d3, double d4, double d5) {
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int l = this.a(i) + j;
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int i1 = this.a(l) + k;
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@@ -84,5 +221,5 @@ public final class NoiseGeneratorPerlin {
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double d13 = a(this.a(i2 + 1), d0 - 1.0D, d1 - 1.0D, d2 - 1.0D);
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return MathHelper.a(d3, d4, d5, d6, d7, d8, d9, d10, d11, d12, d13);
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- }
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+ } */ //Yatopia End
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}
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