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Yatopia/patches/server/0050-lithium-PerlinNoiseSamplerMixin.patch
Ivan Pekov 0c43fe2949
Updated Upstream and Sidestream(s) (Tuinity/EMC/Origami/Purpur/AirplaneLite) 
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:
c04b005 Merge branch 'master' of https://github.com/Spottedleaf/Tuinity into ver/1.16.5
1d169e7 Updated Upstream (Paper)

EMC Changes:
a8914cb8 Remove the ProjectileHitBlockEvent
b8f864b5 Updated Paper
42cd3269 Remove FlowerPotPlantEvent and undeprecate FlowerPotRemoveEvent
64b3edf0 Remove the UUID key for setSpawnedEntity
938c6f1b Convert spawn egg entity tag attributes on creature spawn
4cc80284 Disable entityTag conversion since data version isn't accessible in scope
478d83fe Updated Paper
1e409abf Updated Paper

Origami Changes:
ab42df9 Update Paper

Purpur Changes:
7e8bf66 Updated Upstream (Paper & Tuinity)

AirplaneLite Changes:
3200f2a Add new webhook for notifications
fe01371 Up MC version
c585ff5 Updated Upstream (Tuinity)
2021-01-18 18:40:21 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: JellySquid <jellysquid+atwork@protonmail.com>
Date: Sat, 26 Sep 2020 11:37:25 -0500
Subject: [PATCH] lithium PerlinNoiseSamplerMixin
This is a more optimized version of Lithium's PerlinNoiseSamplerMixin.
Original code by JellySquid, licensed under LGPLv3
you can find the original code on https://github.com/jellysquid3/lithium-fabric/ (Yarn mappings)
Co-authored-by: Bud Gidiere <sgidiere@gmail.com>
diff --git a/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java b/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
index d7ca619b228e2a5a461085e0c5222e6a36a66fe0..ea157542df2617eec6b5a62331e1daa3c086ffae 100644
--- a/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
+++ b/src/main/java/net/minecraft/server/NoiseGeneratorPerlin.java
@@ -1,6 +1,7 @@
package net.minecraft.server;
import java.util.Random;
+import org.apache.commons.math3.util.FastMath; // Yatopia
public final class NoiseGeneratorPerlin {
@@ -8,6 +9,12 @@ public final class NoiseGeneratorPerlin {
public final double a;
public final double b;
public final double c;
+ // Yatopia start - Faster Perlin
+ private static final int GRADIENT_STRIDE = 4;
+ private static final int GRADIENT_STRIDE_SH = 2;
+
+ private final byte[] gradientTable = new byte[256 * GRADIENT_STRIDE];
+ // Yatopia end
public NoiseGeneratorPerlin(Random random) {
this.a = random.nextDouble() * 256.0D;
@@ -29,8 +36,19 @@ public final class NoiseGeneratorPerlin {
this.d[i + j] = b0;
}
+ // Yatopia start
+ for (i = 0; i < 256; i++) {
+ int hash = this.d[i & 255] & 15;
+
+ for (int j = 0; j < 3; j++) {
+ this.gradientTable[(i * GRADIENT_STRIDE) + j] = (byte) NoiseGenerator3Handler.a[hash][j];
+ }
+ }
+ // Yatopia end
}
+ // Yatopia start - replaced logic
+ /*
public double a(double d0, double d1, double d2, double d3, double d4) {
double d5 = d0 + this.a;
double d6 = d1 + this.b;
@@ -55,6 +73,125 @@ public final class NoiseGeneratorPerlin {
}
return this.a(i, j, k, d8, d9 - d14, d10, d11, d12, d13);
+ */
+ public final double sample(double x, double y, double z, double d, double e) { return a(x, y, z, d, e); } // Yatopia - OBFHELPER
+ public final double a(double x, double y, double z, double d, double e) {
+ final double ox = x + this.a;
+ final double oy = y + this.b;
+ final double oz = z + this.c;
+
+ final double fox = FastMath.floor(ox);
+ final double foy = FastMath.floor(oy);
+ final double foz = FastMath.floor(oz);
+
+ final double oox = ox - fox;
+ double ooy = oy - foy;
+ final double ooz = oz - foz;
+
+ final double fx = oox * oox * oox * (oox * (oox * 6.0 - 15.0) + 10.0);
+ final double fy = ooy * ooy * ooy * (ooy * (ooy * 6.0 - 15.0) + 10.0);
+ final double fz = ooz * ooz * ooz * (ooz * (ooz * 6.0 - 15.0) + 10.0);
+
+ if (d != 0.0D) { ooy = ooy - (FastMath.floor(FastMath.min(e, ooy) / d) * d); }
+
+ final int sectionX = (int) fox;
+ final int sectionY = (int) foy;
+ final int sectionZ = (int) foz;
+
+ final byte[] perm = this.d;
+
+ final int i = (perm[sectionX & 255] & 255) + sectionY;
+ final int l = (perm[(sectionX + 1) & 255] & 255) + sectionY;
+
+ final int j = (perm[255 & i] & 255) + sectionZ;
+ final int m = (perm[l & 255] & 255) + sectionZ;
+
+ final int k = (perm[(i + 1) & 255] & 255) + sectionZ;
+ final int n = (perm[(l + 1) & 255] & 255) + sectionZ;
+
+ final double localX2 = oox - 1.0D;
+ final double localY2 = ooy - 1.0D;
+ final double localZ2 = ooz - 1.0D;
+
+ final int d00 = (j & 255) << GRADIENT_STRIDE_SH;
+ final int d01 = (m & 255) << GRADIENT_STRIDE_SH;
+ final int d02 = (k & 255) << GRADIENT_STRIDE_SH;
+ final int d03 = (n & 255) << GRADIENT_STRIDE_SH;
+
+ final int d10 = ((j + 1) & 255) << GRADIENT_STRIDE_SH;
+ final int d11 = ((m + 1) & 255) << GRADIENT_STRIDE_SH;
+ final int d12 = ((k + 1) & 255) << GRADIENT_STRIDE_SH;
+ final int d13 = ((n + 1) & 255) << GRADIENT_STRIDE_SH;
+
+ final byte[] grad = this.gradientTable;
+
+ final double g00x = grad[d00] * oox;
+ final double g00y = grad[d00 + 1] * ooy;
+ final double g00z = grad[d00 + 2] * ooz;
+
+ final double g01x = grad[d01] * localX2;
+ final double g01y = grad[d01 + 1] * ooy;
+ final double g01z = grad[d01 + 2] * ooz;
+
+ final double g02x = grad[d02] * oox;
+ final double g02y = grad[d02 + 1] * localY2;
+ final double g02z = grad[d02 + 2] * ooz;
+
+ final double g03x = grad[d03] * localX2;
+ final double g03y = grad[d03 + 1] * localY2;
+ final double g03z = grad[d03 + 2] * ooz;
+
+ final double g10x = grad[d10] * oox;
+ final double g10y = grad[d10 + 1] * ooy;
+ final double g10z = grad[d10 + 2] * localZ2;
+
+ final double g11x = grad[d11] * localX2;
+ final double g11y = grad[d11 + 1] * ooy;
+ final double g11z = grad[d11 + 2] * localZ2;
+
+ final double g12x = grad[d12] * oox;
+ final double g12y = grad[d12 + 1] * localY2;
+ final double g12z = grad[d12 + 2] * localZ2;
+
+ final double g13x = grad[d13] * localX2;
+ final double g13y = grad[d13 + 1] * localY2;
+ final double g13z = grad[d13 + 2] * localZ2;
+
+ final double g00 = g00x + g00y + g00z;
+ final double g01 = g01x + g01y + g01z;
+ final double g02 = g02x + g02y + g02z;
+ final double g03 = g03x + g03y + g03z;
+ final double g10 = g10x + g10y + g10z;
+ final double g11 = g11x + g11y + g11z;
+ final double g12 = g12x + g12y + g12z;
+ final double g13 = g13x + g13y + g13z;
+
+ final double ba1 = g01 - g00;
+ final double ba2 = g11 - g10;
+ final double dc1 = g03 - g02;
+ final double dc2 = g13 - g12;
+
+ final double dba1 = fx * ba1;
+ final double dba2 = fx * ba2;
+ final double ddc1 = fx * dc1;
+ final double ddc2 = fx * dc2;
+
+ final double dd0 = g00 + dba1;
+ final double dd1 = g10 + dba2;
+ final double dd2 = g02 + ddc1;
+ final double dd3 = g12 + ddc2;
+
+ final double aa0 = dd2 - dd0;
+ final double aa1 = dd3 - dd1;
+
+ final double y20 = fy * aa0;
+ final double y31 = fy * aa1;
+
+ final double aa2 = dd0 + y20;
+ final double aa3 = dd1 + y31;
+
+ return dd0 + y20 + (fz * (aa3 - aa2));
+ // Yatopia end
}
private static double a(int i, double d0, double d1, double d2) {
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