straightforward signal and slots system for lua events

modules/console/console.lua

@@ -67,7 +67,7 @@ end
 function Console.init()
   consoleWidget = UI.loadAndDisplay("/console/console.otui")
   consoleWidget:hide()
-  consoleWidget.onKeyPress = onKeyPress
+  connect(consoleWidget, { onKeyPress = onKeyPress })
 
   commandLineEdit = consoleWidget:getChildById('commandLineEdit')
   consoleBuffer = consoleWidget:getChildById('consoleBuffer')

modules/core/util.lua

@@ -10,4 +10,17 @@ function createEnvironment()
   local env = { }
   setmetatable(env, { __index = _G} )
   return env
-end
+end
+
+function connect(object, signalsAndSlots)
+  for signal,slot in pairs(signalsAndSlots) do
+    if not object[signal] then
+        object[signal] = slot
+    elseif type(object[signal]) == 'function' then
+        object[signal] = { object[signal], slot }
+    elseif type(signal) == 'table' then
+        table.insert(object[signal], slot)
+    else
+    end
+  end
+end

modules/game/game.lua

@@ -7,6 +7,9 @@ local function onGameKeyPress(self, keyCode, keyChar, keyboardModifiers)
     if keyCode == KeyG then
       CharacterList.show()
       return true
+    elseif keyCode == KeyQ then
+      Game.logout()
+      return true
     end
   end
   return false