CavePVP-Stuff/cSpigot-master/spigot-server-Patches/0161-Fix-rounding-errors-on-chunk-coordinate-calculations.patch
2023-05-01 19:59:40 +01:00

123 lines
5.2 KiB
Diff

From 7a1d9da4e4ecd06481216e098c4b4086c6f84436 Mon Sep 17 00:00:00 2001
From: Poweruser_rs <poweruser.rs@hotmail.com>
Date: Wed, 16 Dec 2015 06:59:09 +0100
Subject: [PATCH] Fix rounding errors on chunk coordinate calculations
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 4ca5fe8eb..ffac105db 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -116,8 +116,10 @@ public class PlayerChunkMap {
}
public void addPlayer(EntityPlayer entityplayer) {
- int i = (int) entityplayer.locX >> 4;
- int j = (int) entityplayer.locZ >> 4;
+ // Poweruser start
+ int i = MathHelper.floor(entityplayer.locX) >> 4;
+ int j = MathHelper.floor(entityplayer.locZ) >> 4;
+ // Poweruser end
entityplayer.d = entityplayer.locX;
entityplayer.e = entityplayer.locZ;
@@ -144,8 +146,10 @@ public class PlayerChunkMap {
ArrayList arraylist = new ArrayList(entityplayer.chunkCoordIntPairQueue);
int i = 0;
int j = this.g;
- int k = (int) entityplayer.locX >> 4;
- int l = (int) entityplayer.locZ >> 4;
+ // Poweruser start
+ int k = MathHelper.floor(entityplayer.locX) >> 4;
+ int l = MathHelper.floor(entityplayer.locZ) >> 4;
+ // Poweruser end
int i1 = 0;
int j1 = 0;
ChunkCoordIntPair chunkcoordintpair = PlayerChunk.a(this.a(k, l, true));
@@ -185,8 +189,10 @@ public class PlayerChunkMap {
}
public void removePlayer(EntityPlayer entityplayer) {
- int i = (int) entityplayer.d >> 4;
- int j = (int) entityplayer.e >> 4;
+ // Poweruser start
+ int i = MathHelper.floor(entityplayer.d) >> 4;
+ int j = MathHelper.floor(entityplayer.e) >> 4;
+ // Poweruser end
for (int k = i - this.g; k <= i + this.g; ++k) {
for (int l = j - this.g; l <= j + this.g; ++l) {
@@ -209,15 +215,19 @@ public class PlayerChunkMap {
}
public void movePlayer(EntityPlayer entityplayer) {
- int i = (int) entityplayer.locX >> 4;
- int j = (int) entityplayer.locZ >> 4;
+ // Poweruser start
+ int i = MathHelper.floor(entityplayer.locX) >> 4;
+ int j = MathHelper.floor(entityplayer.locZ) >> 4;
+ // Poweruser end
double d0 = entityplayer.d - entityplayer.locX;
double d1 = entityplayer.e - entityplayer.locZ;
double d2 = d0 * d0 + d1 * d1;
if (d2 >= 64.0D) {
- int k = (int) entityplayer.d >> 4;
- int l = (int) entityplayer.e >> 4;
+ // Poweruser start
+ int k = MathHelper.floor(entityplayer.d) >> 4;
+ int l = MathHelper.floor(entityplayer.e) >> 4;
+ // Poweruser end
int i1 = this.g;
int j1 = i - k;
int k1 = j - l;
@@ -272,8 +282,8 @@ public class PlayerChunkMap {
while (iterator.hasNext()) {
EntityPlayer entityplayer = (EntityPlayer) iterator.next();
- int k = (int) entityplayer.locX >> 4;
- int l = (int) entityplayer.locZ >> 4;
+ int k = MathHelper.floor(entityplayer.locX) >> 4;
+ int l = MathHelper.floor(entityplayer.locZ) >> 4;
int i1;
int j1;
@@ -332,8 +342,10 @@ public class PlayerChunkMap {
private int z;
public ChunkCoordComparator (EntityPlayer entityplayer) {
- x = (int) entityplayer.locX >> 4;
- z = (int) entityplayer.locZ >> 4;
+ // Poweruser start
+ x = MathHelper.floor(entityplayer.locX) >> 4;
+ z = MathHelper.floor(entityplayer.locZ) >> 4;
+ // Poweruser end
}
public int compare(ChunkCoordIntPair a, ChunkCoordIntPair b) {
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index e1d5ba0d2..c1da32963 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -257,7 +257,7 @@ public abstract class PlayerList {
}
worldserver1.getPlayerChunkMap().addPlayer(entityplayer);
- worldserver1.chunkProviderServer.getChunkAt((int) entityplayer.locX >> 4, (int) entityplayer.locZ >> 4);
+ worldserver1.chunkProviderServer.getChunkAt(MathHelper.floor(entityplayer.locX) >> 4, MathHelper.floor(entityplayer.locZ) >> 4);
}
public int d() {
@@ -577,7 +577,7 @@ public abstract class PlayerList {
entityplayer1.setLocation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
// CraftBukkit end
- worldserver.chunkProviderServer.getChunkAt((int) entityplayer1.locX >> 4, (int) entityplayer1.locZ >> 4);
+ worldserver.chunkProviderServer.getChunkAt(MathHelper.floor(entityplayer1.locX) >> 4, MathHelper.floor(entityplayer1.locZ) >> 4);
while (avoidSuffocation && !worldserver.getCubes(entityplayer1, entityplayer1.boundingBox).isEmpty()) { // CraftBukkit
entityplayer1.setPosition(entityplayer1.locX, entityplayer1.locY + 1.0D, entityplayer1.locZ);
--
2.13.3