Resolve "Merge the best from 7.40 branch"

SabrehavenOTClient/modules/client_background/background.lua

@@ -0,0 +1,49 @@
+-- private variables
+local background
+local clientVersionLabel
+
+-- public functions
+function init()
+  background = g_ui.displayUI('background')
+  background:lower()
+
+  clientVersionLabel = background:getChildById('clientVersionLabel')
+  clientVersionLabel:setText('OTClientV8 ' .. g_app.getVersion() .. '\nrev ' .. g_app.getBuildRevision() .. '\nMade by:\n' .. g_app.getAuthor() .. "")
+  
+  if not g_game.isOnline() then
+    addEvent(function() g_effects.fadeIn(clientVersionLabel, 1500) end)
+  end
+
+  connect(g_game, { onGameStart = hide })
+  connect(g_game, { onGameEnd = show })
+end
+
+function terminate()
+  disconnect(g_game, { onGameStart = hide })
+  disconnect(g_game, { onGameEnd = show })
+
+  g_effects.cancelFade(background:getChildById('clientVersionLabel'))
+  background:destroy()
+
+  Background = nil
+end
+
+function hide()
+  background:hide()
+end
+
+function show()
+  background:show()
+end
+
+function hideVersionLabel()
+  background:getChildById('clientVersionLabel'):hide()
+end
+
+function setVersionText(text)
+  clientVersionLabel:setText(text)
+end
+
+function getBackground()
+  return background
+end