local tArgs = { ... }
local dis = tonumber(tArgs[1])

g = 1
st = 5


-- Functions

function turnaround()
 turtle.turnRight()
 turtle.turnRight()
end

 function placedown(item)
  turtle.detect()
  if (turtle.detectDown() == true) then
   turtle.digDown()
  end
  turtle.select(item)
  turtle.placeDown()
end

 function placefront(item)
   turtle.detect()
  if (turtle.detect() == true) then
   turtle.dig()
  end
  turtle.select(item)
  turtle.place()
end

function placerow()
 placefront(st)
 placedown(gr)
 turnaround()
 turtle.forward()
 placedown(gr)
 turtle.forward()
 placedown(gr)
 placefront(st)
 turnaround()
 turtle.forward()
 turtle.turnRight()
end

-- Main Script

local repeat = true
write( [[This code is looped.
Press Enter to terminate code. OK?")
input = read()
if input == "OK" then
while repeat == true do
 turtle.forward()
 turtle.turnRight()
 turtle.forward()
 placerow()
 ev,k=os.pullEvent()
 if ev=="key"then
if k == 28 then
repeat = false
end
print("Code Terminated.")
end