From ecf75579dcfbec00461841c87f96091901fe65fb Mon Sep 17 00:00:00 2001
From: NickAcPT <32451103+NickAcPT@users.noreply.github.com>
Date: Sat, 21 Jul 2018 01:30:30 +0100
Subject: [PATCH] Extend player profile API to support skin changes

Added code that refreshes the player's skin by sending packets with a special order, telling the client to respawn the player and re-apply the game profile

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 210e3bc4..b0335684 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -101,6 +101,12 @@ public class CraftWorld implements World {
     }
     // Paper end
 
+    // Paper start - Provide dimension number of world
+    public int getDimension() {
+        return world.dimension;
+    }
+    // Paper end
+
     private static final Random rand = new Random();
 
     public CraftWorld(WorldServer world, ChunkGenerator gen, Environment env) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 6cbf429f..57f17120 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -55,6 +55,7 @@ import org.bukkit.craftbukkit.CraftStatistic;
 import org.bukkit.craftbukkit.CraftWorld;
 import org.bukkit.craftbukkit.advancement.CraftAdvancement;
 import org.bukkit.craftbukkit.advancement.CraftAdvancementProgress;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
 import org.bukkit.craftbukkit.map.CraftMapView;
 import org.bukkit.craftbukkit.map.RenderData;
 import org.bukkit.craftbukkit.scoreboard.CraftScoreboard;
@@ -1176,10 +1177,41 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         for (EntityPlayer player : players) {
             player.getBukkitEntity().reregisterPlayer(self);
         }
+        refreshPlayer();
     }
     public PlayerProfile getPlayerProfile() {
         return new CraftPlayerProfile(this).clone();
     }
+
+    private void refreshPlayer() {
+        EntityPlayer entityplayer = getHandle();
+
+        Packet respawn = new PacketPlayOutRespawn(entityplayer.dimension, entityplayer.world.getDifficulty(), entityplayer.world.getWorldData().getType(), entityplayer.playerInteractManager.getGameMode());
+        Location l = getLocation();
+        Packet pos = new PacketPlayOutPosition(l.getX(), l.getY(), l.getZ(), l.getYaw(), l.getPitch(), new HashSet<>(), 0);
+        Packet slot = new PacketPlayOutHeldItemSlot(getInventory().getHeldItemSlot());
+
+        EntityPlayer handle = getHandle();
+        PlayerConnection playerCon = handle.playerConnection;
+        reregisterPlayer(handle);
+
+        //Respawn the player then update their position and selected slot
+        playerCon.sendPacket(respawn);
+        handle.updateAbilities();
+        playerCon.sendPacket(pos);
+        playerCon.sendPacket(slot);
+
+        updateScaledHealth();
+        this.updateInventory();
+
+        handle.triggerHealthUpdate();
+
+        if (this.isOp()) {
+            this.setOp(false);
+            this.setOp(true);
+        }
+
+    }
     // Paper end
 
     public void removeDisconnectingPlayer(Player player) {
-- 
2.16.2.windows.1