Paper/Spigot-Server-Patches/0429-Don-t-move-existing-players-to-world-spawn.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 9 Apr 2020 21:20:33 -0400
Subject: [PATCH] Don't move existing players to world spawn
This can cause a nasty server lag the spawn chunks are not kept loaded
or they aren't finished loading yet, or if the world spawn radius is
larger than the keep loaded range.
By skipping this, we avoid potential for a large spike on server start.
diff --git a/src/main/java/net/minecraft/server/level/EntityPlayer.java b/src/main/java/net/minecraft/server/level/EntityPlayer.java
index e3721287cc18c8df81d1353084364966eb3f55ab..79003f43c4f15a7e5dd51587bc8c2f477bedb1b2 100644
--- a/src/main/java/net/minecraft/server/level/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/level/EntityPlayer.java
@@ -254,7 +254,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
this.serverStatisticManager = minecraftserver.getPlayerList().getStatisticManager(this);
this.advancementDataPlayer = minecraftserver.getPlayerList().f(this);
this.G = 1.0F;
- this.c(worldserver);
+ //this.c(worldserver); // Paper - don't move to spawn on login, only first join
this.co = minecraftserver.a(this);
this.cachedSingleHashSet = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
@@ -306,6 +306,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
}
// CraftBukkit end
+ public final void moveToSpawn(WorldServer worldserver) { c(worldserver); } // Paper - OBFHELPER
private void c(WorldServer worldserver) {
BlockPosition blockposition = worldserver.getSpawn();
@@ -483,7 +484,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
position = Vec3D.a(((WorldServer) world).getSpawn());
}
this.world = world;
- this.setPosition(position.getX(), position.getY(), position.getZ());
+ this.setPositionRaw(position.getX(), position.getY(), position.getZ()); // Paper - don't register to chunks yet
}
this.playerInteractManager.a((WorldServer) world);
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 0a99ee6221c46043ecdf9e9df7a064aa63ee6951..bd272d6fe86c30c3f22418802f98609410f947f8 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
2021-03-16 14:04:28 +01:00
@@ -208,6 +208,8 @@ public abstract class PlayerList {
worldserver1 = worldserver;
}
+ if (nbttagcompound == null) entityplayer.moveToSpawn(worldserver1); // Paper - only move to spawn on first login, otherwise, stay where you are....
+
entityplayer.spawnIn(worldserver1);
entityplayer.playerInteractManager.a((WorldServer) entityplayer.world);
String s1 = "local";