Place Bridge Support

StepUp = 0
ForwardCount = 0
SlotNum = 1
Stop = 0
while Stop == 0 do
turtle.select(SlotNum)
ItemCount = turtle.getItemCount(SlotNum)
if ItemCount == 0 then
SlotNum = Slotnum + 1
end
if ForwardCount == 5 then
while StepUp < 6 do
turtle.up()
turtle.forward()
turtle.placeDown()
StepUp = StepUp + 1
end
while StepUp >= 6 do
turtle.forward()
turtle.down()
turtle.placeDown()
StepUp = StepUp - 1
end
ForwardCount = 0
end
while ForwardCount < 6 do
turtle.forward(ForwardCount)
ForwardCount = ForwardCount + 1
end
if SlotNum == 16 then
Stop = 1
end
end