Added Support for UserID

src/de/steamwar/bungeecore/commands/WhoisCommand.java

@@ -40,16 +40,27 @@ public class WhoisCommand extends BasicCommand {
         ProxiedPlayer player = (ProxiedPlayer) sender;
 
         if(args.length == 0){
-            BungeeCore.send(player, BungeeCore.CHAT_PREFIX + "§c/whois [Spieler]");
+            BungeeCore.send(player, BungeeCore.CHAT_PREFIX + "§c/whois [Spieler/ID]");
             return;
         }
 
         SteamwarUser user = SteamwarUser.get(args[0]);
         if(user == null){
-            BungeeCore.send(player, BungeeCore.CHAT_PREFIX + "§cUnbekannter Spieler.");
+            try {
+                int id = Integer.parseInt(args[0]);
+                user = SteamwarUser.get(id);
+            }catch (NumberFormatException ignored) {}
+        }
+
+        if(user == null) {
+            BungeeCore.send(player, BungeeCore.CHAT_PREFIX + "§cUnbekannter Spieler!");
             return;
         }
 
+        sendUserinfo(player, user);
+    }
+
+    private static void sendUserinfo(ProxiedPlayer player, SteamwarUser user) {
         BungeeCore.send(player, "§7Username§8: §e" + user.getUserName());
         BungeeCore.send(player, "§7UUID§8: §e" + user.getUuid().toString(), "", new ClickEvent(ClickEvent.Action.SUGGEST_COMMAND, user.getUuid().toString()));
         BungeeCore.send(player, "§7ID§8: §e" + user.getId());