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8ce5219e07
Vanilla now loads the proper number of chunks for sending to players. So, we can finally match their behavior after all these years.
113 lines
6.1 KiB
Diff
113 lines
6.1 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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== AT ==
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public net.minecraft.server.level.ChunkMap addEntity(Lnet/minecraft/world/entity/Entity;)V
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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 f1a6827a8a23795f810279597b8eefb948d4fcff..6ad8b10e47e33221513f57c424431793177fc140 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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@@ -1037,6 +1037,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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+ ": " + entity + (this.entityMap.containsKey(entity.getId()) ? " ALREADY CONTAINED (This would have crashed your server)" : ""), new Throwable());
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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 cc3ebc15e25e132870bbc336e68216459a4545da..af6b92056d924f7cb9a7a583fd089025c95f88ad 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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@@ -267,6 +267,7 @@ 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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public String kickLeaveMessage = null; // SPIGOT-3034: Forward leave message to PlayerQuitEvent
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// CraftBukkit end
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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 95356cfb36f2103889a21d6c360d29a318c871dd..8a67971d67230b30b769eea5745919946d868bd8 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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@@ -311,6 +311,12 @@ public abstract class PlayerList {
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this.playersByUUID.put(player.getUUID(), player);
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// this.broadcastAll(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(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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CraftPlayer bukkitPlayer = player.getBukkitEntity();
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@@ -349,6 +355,8 @@ public abstract class PlayerList {
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player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(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.getEntityData().refresh(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn
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@@ -374,6 +382,11 @@ 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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@@ -422,6 +435,10 @@ 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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@@ -431,6 +448,7 @@ 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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