startup

os.pullEvent = os.pullEventRaw
t = peripheral.wrap("right")
term.clear()
term.setCursorPos(2,2)
term.setBackgroundColor(colors.white)
term.clearLine()
term.setCursorPos(2,2)
term.setTextColor(colors.gray)
write("Turtle Teleportation Controller")
term.setCursorPos(2,4)
term.setBackgroundColor(colors.black)
term.setTextColor(colors.white)
write("X: ")
x,y = term.getCursorPos()
term.setCursorPos(2,5)
write("Y: ")
term.setCursorPos(2,6)
write("Z: ")
term.setTextColor(colors.lightGray)
term.setCursorPos(x,4)
posX = read()
term.setCursorPos(x,5)
posY = read()
term.setCursorPos(x,6)
posZ = read()
term.setCursorPos(2,8)
if not tonumber(posX) then
  os.shutdown()
end
if not tonumber(posY) then
  os.shutdown()
end
if not tonumber(posZ) then
  os.shutdown()
end
posX = tonumber(posX)
posY = tonumber(posY)
posZ = tonumber(posZ)
term.setTextColor(colors.white)
write("Required Fuel: ")
term.setTextColor(colors.lightGray)
local fuel = tostring(t.requiredFuel(posX,posY,posZ))
write(fuel)
timer = 5
while true do
  term.setCursorPos(2,10)
  term.setTextColor(colors.white)
  term.clearLine()
  term.setCursorPos(2,10)
  term.setTextColor(colors.white)
  write("Teleporting in ")
  term.setTextColor(colors.lightGray)
  write(timer)
  sleep(1)
  timer = timer - 1
  if timer <= 0 then
    break
  end
end
term.setCursorPos(2,12)
term.setTextColor(colors.white)
local tp = t.teleportTo(posX,posY,posZ)
if tp then
  write("Teleportation Successful!")
else
  write("Teleportation Failed.")
end
sleep(12)
os.shutdown()