listStepper
  How to step through a number of lists in parallel
list repeat_loop object stepping




  listStepper 
This is a parent script which you can feed a list of 
lists of arbitrary length and then when you increment 
its counter it will return the nth element of each of 
the lists .



in the messWin:
-- Welcome to Director --
dObj = new ( script "liststepperObj" )

a = [1,2,3,4,5,6]

b = [#a,#b,#c,#d,#e,#f,#g,#h]

c = ["red","blue","green"]

LoL = [a,b,c]

dObj.init(LoL)
put dObj.incrStep()
-- [2, #h, "blue"]

-- [1, #g, "red"]

-- [6, #f, "green"]

-- [5, #e, "blue"]

-- [4, #d, "red"]

-- [3, #c, "green"]

-- [2, #b, "blue"]

-- [1, #a, "red"]


-- parent script "listStepperObj
 -- dp

 property myLoL,myCounter

 on new me
   return me
 end

 on init me, dLoL
   myLoL = dLoL
 end

 on incrStep
   myCounter = myCounter + 1
   dLresults = []
   cnt = myLoL.count
   repeat with i = 1 to cnt
     dL = myLoL[i]
     dC = dL.Count   
     dPos = myCounter mod dC
     if dPos = 0 then dPos = dC
     dLresults.append( dL[dPos] )
   end repeat
   return dLresults
 end

 -- End of script

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