Do not crash server on emotes

lib/game_server.rb

@@ -23,6 +23,11 @@ class GameServer
     )
   end
 
+  def on_emoticon(chunk, packet)
+    # TODO: generate ClEmoticon using
+    #       twgen g ClEmoticon emoticon:int
+  end
+
   def on_info(chunk, packet)
     u = Unpacker.new(chunk.data[1..])
     net_version = u.get_string

lib/teeworlds_server.rb

@@ -105,6 +105,7 @@ class TeeworldsServer
     case chunk.msg
     when NETMSGTYPE_CL_STARTINFO then @game_server.on_start_info(chunk, packet)
     when NETMSGTYPE_CL_SAY then @game_server.on_say(chunk, packet)
+    when NETMSGTYPE_CL_EMOTICON then @game_server.on_emoticon(chunk, packet)
     else
       puts "Unsupported game msg: #{chunk.msg}"
       exit(1)