From 327d183bed6ab6372a3298084cb5e98c35ef43a1 Mon Sep 17 00:00:00 2001
From: williamtdr <william@cboos.com>
Date: Thu, 3 Apr 2014 18:14:36 -0500
Subject: [PATCH] Disallow duplicate usernames and block new player

---
 src/pocketmine/Player.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 1afe690209..7399a5b5ba 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -1317,8 +1317,13 @@ class Player extends Human implements CommandSender, IPlayer{
 				}
 
 				foreach($this->server->getOnlinePlayers() as $p){
-					if($p !== $this and strtolower($p->getName()) === strtolower($this->getName()) && $this->server->getConfigBoolean("kick-duplicate-names",true)){
-						$p->close($p->getName() . " has left the game", "logged in from another location");
+					if($p !== $this and strtolower($p->getName()) === strtolower($this->getName())){
+						if($this->server->getConfigBoolean("kick-duplicate-names",true)) {
+							$p->close($p->getName() . " has left the game", "logged in from another location");
+						} else {
+							$this->close($this->username . " has left the game", "You are already logged on!");
+							return;
+						}
 					}
 				}