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Fix a bunch of stuff with player spawn locations (#9887)

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If a playerdata doesn't contain a valid, loaded world, reset
to the main world spawn point
This commit is contained in:
Jake Potrebic 2023-11-04 14:11:55 -07:00
parent 5cfbe38b31
commit c690244527
3 changed files with 107 additions and 64 deletions
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22
patches/server/Fix-NPE-when-no-valid-world-is-found-on-legacy-Playe.patch
View file

@ -1,22 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 28 Oct 2023 23:21:49 -0700
Subject: [PATCH] Fix NPE when no valid world is found on legacy Players
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -0,0 +0,0 @@ public abstract class PlayerList {
Logger logger = PlayerList.LOGGER;
Objects.requireNonNull(logger);
- resourcekey = (ResourceKey) dataresult.resultOrPartial(logger::error).orElse(player.serverLevel().dimension()); // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD
+ resourcekey = (ResourceKey) dataresult.resultOrPartial(logger::error).orElse(player.serverLevel() != null ? player.serverLevel().dimension() : Level.OVERWORLD); // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD // Paper - account for null level
} else {
- resourcekey = player.serverLevel().dimension(); // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD
+ resourcekey = player.serverLevel() != null ? player.serverLevel().dimension() : Level.OVERWORLD; // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD // Paper - account for null level
}
ResourceKey<Level> resourcekey1 = resourcekey;

119
patches/server/Move-player-to-spawn-point-if-spawn-in-unloaded-worl.patch
View file

@ -3,25 +3,120 @@ From: 2277 <38501234+2277@users.noreply.github.com>
Date: Tue, 31 Mar 2020 10:33:55 +0100
Subject: [PATCH] Move player to spawn point if spawn in unloaded world
The code following this has better support for null worlds to move
them back to the world spawn.
If the playerdata contains an invalid world (missing, unloaded, invalid,
etc.), spawn the player at the spawn point of the main world.
Co-authored-by: Wyatt Childers <wchilders@nearce.com>
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -0,0 +0,0 @@ public abstract class PlayerList {
}
CompoundTag nbttagcompound = this.load(player);
- ResourceKey resourcekey;
+ ResourceKey<Level> resourcekey = null; // Paper
// CraftBukkit start - Better rename detection
if (nbttagcompound != null && nbttagcompound.contains("bukkit")) {
CompoundTag bukkit = nbttagcompound.getCompound("bukkit");
@@ -0,0 +0,0 @@ public abstract class PlayerList {
}
// CraftBukkit end
+ // Paper start - move logic in Entity to here, to use bukkit supplied world UUID & reset to main world spawn if no valid world is found
+ boolean invalidPlayerWorld = false;
+ bukkitData: if (nbttagcompound != null) {
+ // The main way for bukkit worlds to store the world is the world UUID despite mojang adding custom worlds
+ final org.bukkit.World bWorld;
+ if (nbttagcompound.contains("WorldUUIDMost") && nbttagcompound.contains("WorldUUIDLeast")) {
+ bWorld = org.bukkit.Bukkit.getServer().getWorld(new UUID(nbttagcompound.getLong("WorldUUIDMost"), nbttagcompound.getLong("WorldUUIDLeast")));
+ } else if (nbttagcompound.contains("world", net.minecraft.nbt.Tag.TAG_STRING)) { // Paper - legacy bukkit world name
+ bWorld = org.bukkit.Bukkit.getServer().getWorld(nbttagcompound.getString("world"));
+ } else {
+ break bukkitData; // if neither of the bukkit data points exist, proceed to the vanilla migration section
+ }
+ if (bWorld != null) {
+ resourcekey = ((CraftWorld) bWorld).getHandle().dimension();
+ } else {
+ resourcekey = Level.OVERWORLD;
+ invalidPlayerWorld = true;
+ }
+ }
+ if (resourcekey == null) { // only run the vanilla logic if we haven't found a world from the bukkit data
+ // Below is the vanilla way of getting the dimension, this is for migration from vanilla servers
+ // Paper end
if (nbttagcompound != null) {
DataResult<ResourceKey<Level>> dataresult = DimensionType.parseLegacy(new Dynamic(NbtOps.INSTANCE, nbttagcompound.get("Dimension"))); // CraftBukkit - decompile error
Logger logger = PlayerList.LOGGER;
Objects.requireNonNull(logger);
- resourcekey = (ResourceKey) dataresult.resultOrPartial(logger::error).orElse(player.serverLevel().dimension()); // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD
+ // Paper start - reset to main world spawn if no valid world is found
+ final Optional<ResourceKey<Level>> result = dataresult.resultOrPartial(logger::error);
+ invalidPlayerWorld = result.isEmpty();
+ resourcekey = result.orElse(Level.OVERWORLD);
+ // Paper end
} else {
- resourcekey = player.serverLevel().dimension(); // CraftBukkit - SPIGOT-7507: If no dimension, fall back to existing dimension loaded from "WorldUUID", which in turn defaults to World.OVERWORLD
+ resourcekey = Level.OVERWORLD; // Paper - revert to vanilla default main world, this isn't an "invalid world" since no player data existed
}
+ } // Paper
ResourceKey<Level> resourcekey1 = resourcekey;
ServerLevel worldserver = this.server.getLevel(resourcekey1);
@@ -0,0 +0,0 @@ public abstract class PlayerList {
if (worldserver == null) {
PlayerList.LOGGER.warn("Unknown respawn dimension {}, defaulting to overworld", resourcekey1);
worldserver1 = this.server.overworld();
+ invalidPlayerWorld = true; // Paper - reset to main world if no world with parsed value is found
} else {
worldserver1 = worldserver;
}
@@ -0,0 +0,0 @@ public abstract class PlayerList {
// Paper start
if (nbttagcompound == null) {
player.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT; // set Player SpawnReason to DEFAULT on first login
+ // Paper start - reset to main world spawn if first spawn or invalid world
+ }
+ if (nbttagcompound == null || invalidPlayerWorld) {
+ // Paper end
player.fudgeSpawnLocation(worldserver1); // only move to spawn on first login, otherwise, stay where you are....
}
// Paper end
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -0,0 +0,0 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
bworld = server.getWorld(worldName);
}
}
// CraftBukkit end
- // CraftBukkit start - Reset world
- if (this instanceof ServerPlayer) {
- Server server = Bukkit.getServer();
- org.bukkit.World bworld = null;
-
- // TODO: Remove World related checks, replaced with WorldUID
- String worldName = nbt.getString("world");
-
- if (nbt.contains("WorldUUIDMost") && nbt.contains("WorldUUIDLeast")) {
- UUID uid = new UUID(nbt.getLong("WorldUUIDMost"), nbt.getLong("WorldUUIDLeast"));
- bworld = server.getWorld(uid);
- } else {
- bworld = server.getWorld(worldName);
- }
-
- if (bworld == null) {
- bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getLevel(Level.OVERWORLD).getWorld();
- }
+ // Paper start - Move player to spawn point if spawn in unloaded world
+// if (bworld == null) {
+// bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getWorldServer(World.OVERWORLD).getWorld();
+// }
+ // Paper end - Move player to spawn point if spawn in unloaded world
((ServerPlayer) this).setLevel(bworld == null ? null : ((CraftWorld) bworld).getHandle());
}
-
- ((ServerPlayer) this).setLevel(bworld == null ? null : ((CraftWorld) bworld).getHandle());
- }
+ // CraftBukkit start
+ // Paper - move world parsing/loading to PlayerList#placeNewPlayer
this.getBukkitEntity().readBukkitValues(nbt);
if (nbt.contains("Bukkit.invisible")) {
boolean bukkitInvisible = nbt.getBoolean("Bukkit.invisible");

30
patches/server/Spawn-player-in-correct-world-on-login.patch
View file

@ -1,30 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wyatt Childers <wchilders@nearce.com>
Date: Fri, 3 Jul 2020 14:57:05 -0400
Subject: [PATCH] Spawn player in correct world on login
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -0,0 +0,0 @@ public abstract class PlayerList {
}
// CraftBukkit end
- if (nbttagcompound != null) {
+ // Paper start - move logic in Entity to here, to use bukkit supplied world UUID.
+ if (nbttagcompound != null && nbttagcompound.contains("WorldUUIDMost") && nbttagcompound.contains("WorldUUIDLeast")) {
+ UUID uid = new UUID(nbttagcompound.getLong("WorldUUIDMost"), nbttagcompound.getLong("WorldUUIDLeast"));
+ org.bukkit.World bWorld = org.bukkit.Bukkit.getServer().getWorld(uid);
+ if (bWorld != null) {
+ resourcekey = ((CraftWorld) bWorld).getHandle().dimension();
+ } else {
+ resourcekey = Level.OVERWORLD;
+ }
+ } else if (nbttagcompound != null) {
+ // Vanilla migration support
+ // Paper end
DataResult<ResourceKey<Level>> dataresult = DimensionType.parseLegacy(new Dynamic(NbtOps.INSTANCE, nbttagcompound.get("Dimension"))); // CraftBukkit - decompile error
Logger logger = PlayerList.LOGGER;