Resolve "Merge the best from 7.40 branch"

SabrehavenOTClient/modules/game_stats/stats.lua

@@ -0,0 +1,35 @@
+ui = nil
+updateEvent = nil
+
+function init()
+  ui = g_ui.loadUI('stats', modules.game_interface.getMapPanel())
+  
+  if not modules.client_options.getOption("showFps") then
+    ui.fps:hide()
+  end
+  if not modules.client_options.getOption("showPing") then
+    ui.ping:hide()
+  end
+
+  updateEvent = scheduleEvent(update, 200)
+end
+
+function terminate()
+  removeEvent(updateEvent)
+end
+
+function update()
+  updateEvent = scheduleEvent(update, 500)
+  if ui:isHidden() then return end
+
+  text = 'FPS: ' .. g_app.getFps()
+  ui.fps:setText(text)
+end
+
+function show()
+  ui:setVisible(true)
+end
+
+function hide()
+  ui:setVisible(false)
+end