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Fix tracker desync issue (#2224)

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Spottedleaf 2019-06-23 19:32:10 -07:00 committed by Zach
parent 94deeb6dcb
commit bf1d217193
1 changed files with 34 additions and 0 deletions
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Spigot-Server-Patches/0408-Fix-tracker-desync-issue.patch Normal file
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From 78aa506dfa23255e89d4706f45086acc4d6eef89 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sun, 23 Jun 2019 19:11:27 -0700
Subject: [PATCH] Fix tracker desync issue
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index fae57a0998..3804d0a949 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -3205,6 +3205,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
return this.f.j();
}
+ public Vec3D getPositionVector() { return this.ch(); } // Paper - OBFHELPER
public Vec3D ch() {
return new Vec3D(this.locX, this.locY, this.locZ);
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 89649e73e5..fba1639a85 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -1236,7 +1236,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
public void updatePlayer(EntityPlayer entityplayer) {
org.spigotmc.AsyncCatcher.catchOp( "player tracker update"); // Spigot
if (entityplayer != this.tracker) {
- Vec3D vec3d = (new Vec3D(entityplayer.locX, entityplayer.locY, entityplayer.locZ)).d(this.trackerEntry.b());
+ Vec3D vec3d = (new Vec3D(entityplayer.locX, entityplayer.locY, entityplayer.locZ)).d(this.tracker.getPositionVector()); // Paper - prevent de-sync issues
int i = Math.min(this.trackingDistance, (PlayerChunkMap.this.viewDistance - 1) * 16);
boolean flag = vec3d.x >= (double) (-i) && vec3d.x <= (double) i && vec3d.z >= (double) (-i) && vec3d.z <= (double) i && this.tracker.a(entityplayer);
--
2.21.0