add chat buffer

modules/chat/chat.lua

@@ -2,10 +2,26 @@ Chat = {}
 
 -- private variables
 local chatPanel
+local chatBuffer
+
+-- private functions
+local function onCreatureSpeak(name, level, msgtype, message)
+  style = 'ChatLabel'
+  if name and level > 0 then
+      message = name .. ' [' .. level .. ']: ' .. message
+      style = 'YellowChatLabel'
+  end
+
+  local label = UILabel.create()
+  label:setStyle(style)
+  label:setText(message)
+  chatBuffer:addChild(label)
+end
 
 -- public functions
 function Chat.create()
   chatPanel = loadUI("/chat/chat.otui", Game.gameBottomPanel)
+  chatBuffer = chatPanel:getChildById('chatBuffer')
 end
 
 function Chat.destroy()
@@ -16,4 +32,5 @@ end
 -- hooked events
 
 connect(Game, { onLogin = Chat.create,
-                onLogout = Chat.destroy })
+                onLogout = Chat.destroy,
+                onCreatureSpeak = onCreatureSpeak})