Turn off light in 4 hours

[managementboy]

Thanks! Here my version of the code. I use an object with a slider to allow us to set the auto-off value in minutes via the Visualization. I have it in a resident script with 60 seconds update. Works well.

Code:

ontime = grp.getvalue('9/4/0') * 60 -- autooff group in minutes * 60 seconds

-- current timestamp, in seconds
now = os.time()

-- get all objects with AutoOff tag
objects = grp.tag('AutoOff')

-- check all objects
for _, object in ipairs(objects) do
 -- object is on
 istrue = toboolean(object.data)
 if istrue then
   delta = now - object.updatetime
   -- timer expired, turn off
   if delta >= ontime then
     object:write(0)
   end
 end
end