the average value of tagged objects

[rocfusion]

Hi,

Ok so I have room of lights.  These objects ( group addresses ) which are either switch ( boolean ) or value based ( scale ) they are tagged as "Liivng".  I want to show the average value of these lights.   All of the status objects have been tagged with the tag called "Living Feedback".  An event based script is placed on the "Living Feedback" tag.  I created a two virtual objects.  The first allows me to set the value of tag objects.  The second represents the feedback, the average value of the objects.  The problem is that there is always a varying number of lights and it can that only one light is changed or all of them are changed. The feedback value can jump up and down whilst every light returns its status.   I have tried to overcome this by not recalculating the every time by checking when the average value status object has just been updated.  Which can lead to the value not always being correct. Is there a better way to do this?

Thanks,

Roger
 

Code:

if (event.type=='groupwrite') then
 local groupstatus = grp.find('5/3/0')  -- Status address of living
 local delta = os.time()-groupstatus.updatetime
 if(delta>5) then
   local currentV = round(groupstatus.value,0)
   local sobj = grp.tag('Living Feedback')
   local sTotal = 0
   local counter = 0
   for key, obj in ipairs(sobj) do
     if(sobj[key].data==true)then
     elseif(sobj[key].data==false)then
     else
       sTotal= sTotal + sobj[key].data
       counter=counter+1
     end
   end
   local value= round((sTotal / counter),0)
   if(currentV~=value) then
     grp.update('5/3/0', value, dt.scale)
   end
 end
end