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"It was from a different time before books were as jank as they are now. As time has gone on they've only proven to be worse and worse."
111 lines
6.2 KiB
Diff
111 lines
6.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 19 Apr 2020 00:05:46 -0400
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Subject: [PATCH] Fix Longstanding Broken behavior of PlayerJoinEvent
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For years, plugin developers have had to delay many things they do
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inside of the PlayerJoinEvent by 1 tick to make it actually work.
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This all boiled down to 1 reason why: The event fired before the
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player was fully ready and joined to the world!
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Additionally, if that player logged out on a vehicle, the event
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fired before the vehicle was even loaded, so that plugins had no
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access to the vehicle during this event either.
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This change finally fixes this issue, fully preparing the player
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into the world as a fully ready entity, vehicle included.
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There should be no plugins that break because of this change, but might
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improve consistency with other plugins instead.
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For example, if 2 plugins listens to this event, and the first one
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teleported the player in the event, then the 2nd plugin actually
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would be getting a valid player!
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This was very non deterministic. This change will ensure every plugin
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receives a deterministic result, and should no longer require 1 tick
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delays anymore.
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 7ef52d0ae501312590802acb5f54fcf6f7cdac9e..c1b7e9d515fc833759707ab3c5c952320dec103e 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1600,6 +1600,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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.printStackTrace();
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return;
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}
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+ if (entity instanceof ServerPlayer && ((ServerPlayer) entity).supressTrackerForLogin) return; // Delay adding to tracker until after list packets
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// Paper end
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if (!(entity instanceof EnderDragonPart)) {
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EntityType<?> entitytypes = entity.getType();
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index c2dd937938e120472d0a2609c1afef693a342682..05e520165a86eb52e1fd4130b6f2ccc4c838934a 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -237,6 +237,7 @@ public class ServerPlayer extends Player {
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public double maxHealthCache;
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public boolean joining = true;
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public boolean sentListPacket = false;
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+ public boolean supressTrackerForLogin = false; // Paper
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public Integer clientViewDistance;
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// CraftBukkit end
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public PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper
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diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
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index 5432ce5b86b7731fe5d06d334e4e191f2eb2f429..3a13c151066c8784fdc844e1d6310f77ff32e7f1 100644
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--- a/src/main/java/net/minecraft/server/players/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
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@@ -274,6 +274,12 @@ public abstract class PlayerList {
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this.playersByUUID.put(player.getUUID(), player);
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// this.sendAll(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER, new EntityPlayer[]{entityplayer})); // CraftBukkit - replaced with loop below
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+ // Paper start - correctly register player BEFORE PlayerJoinEvent, so the entity is valid and doesn't require tick delay hacks
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+ player.supressTrackerForLogin = true;
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+ worldserver1.addNewPlayer(player);
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+ this.server.getCustomBossEvents().onPlayerConnect(player); // see commented out section below worldserver.addPlayerJoin(entityplayer);
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+ mountSavedVehicle(player, worldserver1, nbttagcompound);
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+ // Paper end
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// CraftBukkit start
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PlayerJoinEvent playerJoinEvent = new org.bukkit.event.player.PlayerJoinEvent(this.cserver.getPlayer(player), PaperAdventure.asAdventure(chatmessage)); // Paper - Adventure
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this.cserver.getPluginManager().callEvent(playerJoinEvent);
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@@ -309,6 +315,8 @@ public abstract class PlayerList {
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player.connection.send(new ClientboundPlayerInfoPacket(ClientboundPlayerInfoPacket.Action.ADD_PLAYER, new ServerPlayer[] { entityplayer1}));
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}
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player.sentListPacket = true;
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+ player.supressTrackerForLogin = false; // Paper
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+ ((ServerLevel)player.level).getChunkSource().chunkMap.addEntity(player); // Paper - track entity now
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// CraftBukkit end
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player.connection.send(new ClientboundSetEntityDataPacket(player.getId(), player.getEntityData(), true)); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn
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@@ -334,6 +342,11 @@ public abstract class PlayerList {
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playerconnection.send(new ClientboundUpdateMobEffectPacket(player.getId(), mobeffect));
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}
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+ // Paper start - move vehicle into method so it can be called above - short circuit around that code
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+ onPlayerJoinFinish(player, worldserver1, s1);
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+ }
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+ private void mountSavedVehicle(ServerPlayer player, ServerLevel worldserver1, CompoundTag nbttagcompound) {
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+ // Paper end
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if (nbttagcompound != null && nbttagcompound.contains("RootVehicle", 10)) {
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CompoundTag nbttagcompound1 = nbttagcompound.getCompound("RootVehicle");
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// CraftBukkit start
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@@ -382,6 +395,10 @@ public abstract class PlayerList {
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}
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}
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+ // Paper start
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+ }
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+ public void onPlayerJoinFinish(ServerPlayer player, ServerLevel worldserver1, String s1) {
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+ // Paper end
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player.initInventoryMenu();
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// CraftBukkit - Moved from above, added world
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// Paper start - Add to collideRule team if needed
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@@ -391,6 +408,7 @@ public abstract class PlayerList {
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scoreboard.addPlayerToTeam(player.getScoreboardName(), collideRuleTeam);
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}
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// Paper end
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+ // CraftBukkit - Moved from above, added world
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PlayerList.LOGGER.info("{}[{}] logged in with entity id {} at ([{}]{}, {}, {})", player.getName().getString(), s1, player.getId(), worldserver1.serverLevelData.getLevelName(), player.getX(), player.getY(), player.getZ());
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}
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