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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.
== AT ==
public net.minecraft.server.level.ServerPlayer fudgeSpawnLocation(Lnet/minecraft/server/level/ServerLevel;)V
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 965ca28a8877f5e541741c45bace7075d15a77d7..adbc8e74f0b454403bc682de11bd0342e9bb6c2c 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -419,7 +419,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
this.server = server;
this.stats = server.getPlayerList().getPlayerStats(this);
this.advancements = server.getPlayerList().getPlayerAdvancements(this);
- this.moveTo(this.adjustSpawnLocation(world, world.getSharedSpawnPos()).getBottomCenter(), 0.0F, 0.0F);
+ // this.moveTo(this.adjustSpawnLocation(world, world.getSharedSpawnPos()).getBottomCenter(), 0.0F, 0.0F); // Paper - Don't move existing players to world spawn
this.updateOptions(clientOptions);
this.object = null;
@@ -856,7 +856,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
position = Vec3.atCenterOf(world.getSharedSpawnPos());
}
this.setLevel(world);
- this.setPos(position);
+ this.setPosRaw(position.x(), position.y(), position.z()); // Paper - don't register to chunks yet
}
this.gameMode.setLevel((ServerLevel) world);
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 2cfc2213e3036585dc4723eecf747e1c37d53b72..ad4f5a4e00b9b517841acd0b4ff5088e45451bf4 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -226,6 +226,7 @@ public abstract class PlayerList {
// Paper start - Entity#getEntitySpawnReason
if (optional.isEmpty()) {
player.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT; // set Player SpawnReason to DEFAULT on first login
+ player.moveTo(player.adjustSpawnLocation(worldserver1, worldserver1.getSharedSpawnPos()).getBottomCenter(), 0.0F, 0.0F);
}
// Paper end - Entity#getEntitySpawnReason
player.setServerLevel(worldserver1);
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