Computercraft Basic Bridge Program

print("Building Bridge...")

turtle.forward()
turtle.select(1)
count=1

for inv=1,9 do
  while turtle.getItemCount(inv) > 0 and not(turtle.detect())do
    turtle.placeDown()
    turtle.forward()
    count= count+1
  end
end

for i=1,count do
  turtle.back()
end

print("Finished")
print("Placed ",count," blocks")