From 9ae1f2a102c740bf3ff54f6397741196bfdd8f53 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/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
index 4b82e43a8..35fde8b23 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -59,7 +59,7 @@ public abstract class EntityHuman extends EntityLiving {
     protected int bS;
     protected float bT = 0.02F;
     private int f;
-    private final GameProfile g;
+    private GameProfile g; public void setProfile(GameProfile profile) { this.g = profile; } // Paper - OBFHELPER
     private ItemStack bV;
     private final ItemCooldown bW;
     @Nullable
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 21631c588..87e31cf0d 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1,6 +1,8 @@
 package org.bukkit.craftbukkit.entity;
 
 import com.destroystokyo.paper.Title;
+import com.destroystokyo.paper.profile.CraftPlayerProfile;
+import com.destroystokyo.paper.profile.PlayerProfile;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.BaseEncoding;
@@ -1092,8 +1094,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         hiddenPlayers.put(player.getUniqueId(), hidingPlugins);
 
         // Remove this player from the hidden player's EntityTrackerEntry
-        EntityTracker tracker = ((WorldServer) entity.world).tracker;
         EntityPlayer other = ((CraftPlayer) player).getHandle();
+        // Paper start
+        unregisterPlayer(other);
+    }
+    private void unregisterPlayer(EntityPlayer other) {
+        EntityTracker tracker = ((WorldServer) entity.world).tracker;
+        // Paper end
+
         EntityTrackerEntry entry = tracker.trackedEntities.get(other.getId());
         if (entry != null) {
             entry.clear(getHandle());
@@ -1134,8 +1142,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         }
         hiddenPlayers.remove(player.getUniqueId());
 
-        EntityTracker tracker = ((WorldServer) entity.world).tracker;
+        // Paper start
         EntityPlayer other = ((CraftPlayer) player).getHandle();
+        registerPlayer(other);
+    }
+    private void registerPlayer(EntityPlayer other) {
+        EntityTracker tracker = ((WorldServer) entity.world).tracker;
+        // Paper end
 
         getHandle().playerConnection.sendPacket(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER, other));
 
@@ -1144,6 +1157,25 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
             entry.updatePlayer(getHandle());
         }
     }
+    // Paper start
+    private void reregisterPlayer(EntityPlayer player) {
+        if (!hiddenPlayers.containsKey(player.getUniqueID())) {
+            unregisterPlayer(player);
+            registerPlayer(player);
+        }
+    }
+    public void setPlayerProfile(PlayerProfile profile) {
+        EntityPlayer self = getHandle();
+        self.setProfile(CraftPlayerProfile.asAuthlibCopy(profile));
+        List<EntityPlayer> players = server.getServer().getPlayerList().players;
+        for (EntityPlayer player : players) {
+            player.getBukkitEntity().reregisterPlayer(self);
+        }
+    }
+    public PlayerProfile getPlayerProfile() {
+        return CraftPlayerProfile.asBukkitCopy(getHandle().getProfile());
+    }
+    // Paper end
 
     public void removeDisconnectingPlayer(Player player) {
         hiddenPlayers.remove(player.getUniqueId());
-- 
2.16.2