From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 18 Mar 2018 12:29:48 -0400
Subject: [PATCH] Player.setPlayerProfile API

This can be useful for changing name or skins after a player has logged in.

diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index f39ccd15c037138a933eb529bec17d49349c0264..1d05725374bdffad6a8ab1502ee732775345024d 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -340,12 +340,12 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
                         final org.bukkit.craftbukkit.CraftServer server = ServerLoginPacketListenerImpl.this.server.server;
 
                             // Paper start
-                            PlayerProfile profile = Bukkit.createProfile(uniqueId, playerName);
+                            PlayerProfile profile = CraftPlayerProfile.asBukkitMirror(ServerLoginPacketListenerImpl.this.gameProfile);
                             AsyncPlayerPreLoginEvent asyncEvent = new AsyncPlayerPreLoginEvent(playerName, address, uniqueId, profile);
                         server.getPluginManager().callEvent(asyncEvent);
                             profile = asyncEvent.getPlayerProfile();
-                            profile.complete();
-                            gameProfile = CraftPlayerProfile.asAuthlibCopy(profile);
+                            profile.complete(true);
+                            ServerLoginPacketListenerImpl.this.gameProfile = CraftPlayerProfile.asAuthlib(profile);
                             playerName = gameProfile.getName();
                             uniqueId = gameProfile.getId();
                             // Paper end
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 4e8d38a6379d3dc1b7167b27479e6a27ea19ea19..3c0aca2b90521da83cf494d9fff953a17a57701d 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -173,7 +173,7 @@ public abstract class Player extends LivingEntity {
     protected int enchantmentSeed;
     protected final float defaultFlySpeed = 0.02F;
     private int lastLevelUpTime;
-    private final GameProfile gameProfile;
+    public GameProfile gameProfile; // Paper - private->public
     private boolean reducedDebugInfo;
     private ItemStack lastItemInMainHand;
     private final ItemCooldowns cooldowns;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 75963a28b39f8835f1daba3d1b44655603124bf3..8bf0c74ee32e8cb7c0f48bc964552811ad6ee468 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -71,6 +71,7 @@ import net.minecraft.world.item.enchantment.EnchantmentHelper;
 import net.minecraft.world.item.enchantment.Enchantments;
 import net.minecraft.world.level.GameType;
 import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.biome.BiomeManager;
 import net.minecraft.world.level.block.entity.SignBlockEntity;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
@@ -1320,8 +1321,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         this.hiddenPlayers.put(player.getUniqueId(), hidingPlugins);
 
         // Remove this player from the hidden player's EntityTrackerEntry
-        ChunkMap tracker = ((ServerLevel) entity.level).getChunkSource().chunkMap;
+        // Paper start
         ServerPlayer other = ((CraftPlayer) player).getHandle();
+        unregisterPlayer(other);
+    }
+    private void unregisterPlayer(ServerPlayer other) {
+        ChunkMap tracker = ((ServerLevel) entity.level).getChunkSource().chunkMap;
+        // Paper end
         ChunkMap.TrackedEntity entry = tracker.entityMap.get(other.getId());
         if (entry != null) {
             entry.removePlayer(this.getHandle());
@@ -1362,8 +1368,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         }
         this.hiddenPlayers.remove(player.getUniqueId());
 
-        ChunkMap tracker = ((ServerLevel) entity.level).getChunkSource().chunkMap;
+        // Paper start
         ServerPlayer other = ((CraftPlayer) player).getHandle();
+        registerPlayer(other);
+    }
+    private void registerPlayer(ServerPlayer other) {
+        ChunkMap tracker = ((ServerLevel) entity.level).getChunkSource().chunkMap;
+        // Paper end
 
         this.getHandle().connection.send(new ClientboundPlayerInfoPacket(ClientboundPlayerInfoPacket.Action.ADD_PLAYER, other));
 
@@ -1372,6 +1383,50 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
             entry.updatePlayer(this.getHandle());
         }
     }
+    // Paper start
+    private void reregisterPlayer(ServerPlayer player) {
+        if (!hiddenPlayers.containsKey(player.getUUID())) {
+            unregisterPlayer(player);
+            registerPlayer(player);
+        }
+    }
+    public void setPlayerProfile(com.destroystokyo.paper.profile.PlayerProfile profile) {
+        ServerPlayer self = getHandle();
+        self.gameProfile = com.destroystokyo.paper.profile.CraftPlayerProfile.asAuthlibCopy(profile);
+        if (!self.sentListPacket) {
+            return;
+        }
+        List<ServerPlayer> players = server.getServer().getPlayerList().players;
+        for (ServerPlayer player : players) {
+            player.getBukkitEntity().reregisterPlayer(self);
+        }
+        refreshPlayer();
+    }
+    public com.destroystokyo.paper.profile.PlayerProfile getPlayerProfile() {
+        return new com.destroystokyo.paper.profile.CraftPlayerProfile(this).clone();
+    }
+
+    private void refreshPlayer() {
+        ServerPlayer handle = getHandle();
+
+        Location loc = getLocation();
+
+        ServerGamePacketListenerImpl connection = handle.connection;
+        reregisterPlayer(handle);
+
+        //Respawn the player then update their position and selected slot
+        ServerLevel worldserver = handle.getLevel();
+        connection.send(new net.minecraft.network.protocol.game.ClientboundRespawnPacket(worldserver.dimensionType(), worldserver.dimension(), BiomeManager.obfuscateSeed(worldserver.getSeed()), handle.gameMode.getGameModeForPlayer(), handle.gameMode.getPreviousGameModeForPlayer(), worldserver.isDebug(), worldserver.isFlat(), true));
+        handle.onUpdateAbilities();
+        connection.send(new net.minecraft.network.protocol.game.ClientboundPlayerPositionPacket(loc.getX(), loc.getY(), loc.getZ(), loc.getYaw(), loc.getPitch(), java.util.Collections.emptySet(), 0, false));
+        net.minecraft.server.MinecraftServer.getServer().getPlayerList().sendAllPlayerInfo(handle);
+
+        if (this.isOp()) {
+            this.setOp(false);
+            this.setOp(true);
+        }
+    }
+    // Paper end
 
     public void removeDisconnectingPlayer(Player player) {
         this.hiddenPlayers.remove(player.getUniqueId());