Argument not being accepted by function

[James C. W. <jfc...@ya...>]

Hi all,

I'm having a bit of difficulty writing up a function to simplify image sequences and make them playable by one line: playVid(stairDoorOpenLeft, 20, 4, 333, 400, 15)
  The first argument specifies the folder the images are in, then the number of frames, then the cube face, the x/y coords, and the framerate. Trouble is when I run it it tells me this : attempt to concatenate local folder, a nil value

The function is below...Anysuggestions?
 
Thanks, James


function playVid(folder, frameCnt, face, locX, locY, framerate)

local animpos = 0
local vid = patch { face = face, x = locX, y = locY, image =  " " .. folder .. "/" .. animpos .. ".jpg"  }


  pipmak.schedule(
    framerate,
    function(now, last)
      animpos = animpos + 1
      if animpos > frameCnt then animpos = 0 end
      vid:setimage ( " " .. folder .. "/" .. animpos .. ".jpg" ) 
      return framerate
    end
  )
end