## Variables you can read

* `Current_time` -- seconds since some unspecified time. Useful for managing
  durations of time (scheduling operations, etc.).

  app.Current_time = 0

  Current_time = 0

  app.Current_time = app.Current_time + dt
  if app.Current_time < app.Last_resize_time + 0.1 then

  Current_time = Current_time + dt
  if Current_time < app.Last_resize_time + 0.1 then

  if app.Current_time - app.Previous_read > 0.1 then

  if Current_time - app.Previous_read > 0.1 then

    app.Previous_read = app.Current_time

    app.Previous_read = Current_time

  app.Last_resize_time = app.Current_time

  app.Last_resize_time = Current_time

    app.Last_focus_time = app.Current_time

    app.Last_focus_time = Current_time

  if app.Current_time < app.Last_focus_time + 0.01 then

  if Current_time < app.Last_focus_time + 0.01 then

  if app.Current_time < app.Last_focus_time + 0.01 then

  if Current_time < app.Last_focus_time + 0.01 then