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https://github.com/PaperMC/Paper.git
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94 lines
5.5 KiB
Diff
94 lines
5.5 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] Fire PlayerJoinEvent when Player is actually ready
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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 396310a51480cf0d1ea4c0959d3f8e4ed77b99e3..0f8fc275af95750871aa6917aa12053f75c112f7 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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@@ -1305,6 +1305,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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return;
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}
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// Paper end - ignore and warn about illegal addEntity calls instead of crashing server
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+ if (entity instanceof ServerPlayer && ((ServerPlayer) entity).supressTrackerForLogin) return; // Paper - Fire PlayerJoinEvent when Player is actually ready; Delay adding to tracker until after list packets
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if (!(entity instanceof EnderDragonPart)) {
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EntityType<?> entitytypes = entity.getType();
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int i = entitytypes.clientTrackingRange() * 16;
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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 9911e231ad021286f2da90057b06874f7b4e3b4d..807068fc6065f71961d34cb4f18b6eb39ae49637 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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@@ -317,6 +317,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.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 - Fire PlayerJoinEvent when Player is actually ready
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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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public boolean isRealPlayer; // 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 ad4f5a4e00b9b517841acd0b4ff5088e45451bf4..4ff14dc6996634b0fcd365f76055023601ad2be0 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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@@ -299,6 +299,13 @@ 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 - Fire PlayerJoinEvent when Player is actually ready; 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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+ player.loadAndSpawnEnderpearls(optional);
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+ player.loadAndSpawnParentVehicle(optional);
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+ // Paper end - Fire PlayerJoinEvent when Player is actually ready
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// CraftBukkit start
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CraftPlayer bukkitPlayer = player.getBukkitEntity();
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@@ -337,6 +344,8 @@ 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 - Fire PlayerJoinEvent when Player is actually ready
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+ ((ServerLevel)player.level()).getChunkSource().chunkMap.addEntity(player); // Paper - Fire PlayerJoinEvent when Player is actually ready; track entity now
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// CraftBukkit end
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player.refreshEntityData(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn
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@@ -352,8 +361,7 @@ public abstract class PlayerList {
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worldserver1 = player.serverLevel(); // CraftBukkit - Update in case join event changed it
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// CraftBukkit end
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this.sendActivePlayerEffects(player);
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- player.loadAndSpawnEnderpearls(optional);
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- player.loadAndSpawnParentVehicle(optional);
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+ // Paper - move loading pearls / parent vehicle up
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player.initInventoryMenu();
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// CraftBukkit - Moved from above, added world
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// Paper start - Configurable player collision; Add to collideRule team if needed
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