View difference between Paste ID: j7hmsyXV and rAv1fwsw

 -- 0 - air
 -- 1 - black
 -- 2 - red
 
 --
 
 
 function buildLine(line)
     for element = 1,#line do
         slot = line[element]
         if slot ~= 0 then
         turtle.select(slot)
         turtle.placeDown()
        end
         turtle.forward()
     end
 
     for w = 1,#line do
         turtle.back()
     end
 end
 
 function buildImage(image)
     for stroka = 1,#image do
         buildLine(image[stroka])
         turtle.turnRight()
         turtle.forward()
         turtle.turnLeft()
     end
    turtle.up()
 end
 art = {
      {1,2,2,1},
      {2,0,0,2},
      {2,0,0,2},
      {1,2,2,1},
 }
 
 buildImage(art)
 art2 = {
      {2,0,0,2},
      {0,0,0,0},
      {0,0,0,0},
      {2,0,0,2},
 }