Non-repeating random list

 

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Reproduced with permission from Penworks Lingo User"s Journal

-- Source Code from the Lingo User"s Journal -- Copyright (c) 1995 by Penworks Corporation -----The movie Script----- on startMovie   set audioList =birth(script "randomListMaker", 5)   set videoList =birth(script "randomListMaker", 5)      repeat with x=1 to 5     repeat with y=1 to 5       put getNextRandom(audioList), "<--Audio    Video-->", getNextRandom(videoList)     end repeat     put "-------------------------"   end repeat      set audioList =0   set VideoList =0 end -- Object script for randomListMaker property randomList property listSize property nextItem on birth me, howMany   set the listSize of me = howMany   generateList(me)   return(me) end on getNextRandom me   if the nextItem of me > the listSize of me then     generateList(me)   end if   set thisNumber =getAt(the randomList of me, the nextItem of me)   set the nextItem of me=the nextItem of me+ 1   return(thisNumber) end on generateList me   set the randomList of me =[]   repeat with x=1 to the listSize of me     addAt(the randomList of me, random(x),x)   end repeat   set the nextItem of me  =1 end