geforkt von Mirrors/Paper
79 Zeilen
3.3 KiB
Diff
79 Zeilen
3.3 KiB
Diff
From 8b0d449cb76d89090aae4723793e9d58a5301d72 Mon Sep 17 00:00:00 2001
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From: Zach Brown <Zbob750@live.com>
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Date: Tue, 22 Jul 2014 21:52:19 -0500
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Subject: [PATCH] Fix random position generator tendency to move north west
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Fixes mobs sticking to one side of pens and "migrating" to the north west constantly
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Backported fix from 1.8
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diff --git a/src/main/java/net/minecraft/server/RandomPositionGenerator.java b/src/main/java/net/minecraft/server/RandomPositionGenerator.java
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index 9342a3f..fa20a7d 100644
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--- a/src/main/java/net/minecraft/server/RandomPositionGenerator.java
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+++ b/src/main/java/net/minecraft/server/RandomPositionGenerator.java
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@@ -27,9 +27,11 @@ public class RandomPositionGenerator {
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private static Vec3D c(EntityCreature entitycreature, int i, int j, Vec3D vec3d) {
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Random random = entitycreature.aI();
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boolean flag = false;
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- int k = 0;
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- int l = 0;
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- int i1 = 0;
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+ // PaperSpigot start - int -> double
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+ double k = 0;
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+ double l = 0;
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+ double i1 = 0;
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+ // PaperSpigot end
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float f = -99999.0F;
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boolean flag1;
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@@ -43,22 +45,27 @@ public class RandomPositionGenerator {
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}
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for (int j1 = 0; j1 < 10; ++j1) {
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- int k1 = random.nextInt(2 * i) - i;
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- int l1 = random.nextInt(2 * j) - j;
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- int i2 = random.nextInt(2 * i) - i;
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+ // PaperSpigot start - Even distribution and average of 0
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+ int k1 = random.nextInt(2 * i + 1) - i;
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+ int l1 = random.nextInt(2 * j + 1) - j;
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+ int i2 = random.nextInt(2 * i + 1) - i;
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+ // PaperSpigot end
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if (vec3d == null || (double) k1 * vec3d.a + (double) i2 * vec3d.c >= 0.0D) {
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- k1 += MathHelper.floor(entitycreature.locX);
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- l1 += MathHelper.floor(entitycreature.locY);
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- i2 += MathHelper.floor(entitycreature.locZ);
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- if (!flag1 || entitycreature.b(k1, l1, i2)) {
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- float f1 = entitycreature.a(k1, l1, i2);
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+ // PaperSpigot start - Use truncated absolute destination position for checking things
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+ int k1Mod = k1 + MathHelper.floor(entitycreature.locX);
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+ int l1Mod = l1 + MathHelper.floor(entitycreature.locY);
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+ int i2Mod = i2 + MathHelper.floor(entitycreature.locZ);
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+ if (!flag1 || entitycreature.b(k1Mod, l1Mod, i2Mod)) {
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+ float f1 = entitycreature.a(k1Mod, l1Mod, i2Mod);
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if (f1 > f) {
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f = f1;
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- k = k1;
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- l = l1;
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- i1 = i2;
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+ // but then the full value to set where to move
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+ k = entitycreature.locX + k1;
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+ l = entitycreature.locY + l1;
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+ i1 = entitycreature.locZ + i2;
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+ // PaperSpigot end
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flag = true;
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}
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}
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@@ -66,7 +73,7 @@ public class RandomPositionGenerator {
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}
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if (flag) {
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- return Vec3D.a((double) k, (double) l, (double) i1);
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+ return Vec3D.a(k, l, i1); // PaperSpigot remove unnecessary cast
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} else {
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return null;
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}
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--
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1.9.1
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