lua console and some changes

modules/console/console.lua

@@ -0,0 +1,74 @@
+Console = { }
+local console
+local logLocked = false
+
+function Console.onLog(level, message, time)
+  -- avoid logging while reporting logs (would cause a infinite loop)
+  if not logLocked then
+    logLocked = true
+
+    local color
+    if level == LogDebug then
+      color = '#5555ff'
+    elseif level == LogInfo then
+      color = '#55ff55'
+    elseif level == LogWarning then
+      color = '#ffff00'
+    else
+      color = '#ff0000'
+    end
+
+    Console.addLine(message, color)
+
+    logLocked = false
+  end
+end
+
+function Console.addLine(text, color)
+  -- create new label
+  local label = UILabel.create()
+  label:setStyle('ConsoleLabel')
+  label:setText(text)
+  label:setForegroundColor(color)
+
+  console:insertChild(label, -1)
+end
+
+function Console.create()
+  console = loadUI("/console/console.otui")
+  rootWidget:addChild(console)
+  console:hide()
+
+  Logger.setOnLog(Console.onLog)
+  Logger.fireOldMessages()
+end
+
+function Console.destroy()
+  console:destroy()
+  console = nil
+end
+
+function Console.show()
+  console.parent:lockChild(console)
+  console.visible = true
+end
+
+function Console.hide()
+  console.parent:unlockChild(console)
+  console.visible = false
+end
+
+function Console.executeCommand(command)
+  Console.addLine(">> " .. command, "#ffffff")
+  local func, err = loadstring("return (" .. command .. ")", "@")
+  if func then
+    local ok, ret = pcall(func)
+    if ok then
+      Logger.log(LogDebug, "=> " .. tostring(ret))
+    else
+      Logger.log(LogError, 'command failed: ' .. ret)
+    end
+  else
+    Logger.log(LogError, 'incorrect lua syntax: ' .. err:sub(5))
+  end
+end