r

-- r
-- Turns and/or move the turtle to the right
-- Written by HarvDad, March 2014

args = {...}
nArgs = #args

x = 0
y = 0
z = 0
face = 0
minimumFuel = 100
abort = false
local currentFuelLevel = turtle.getFuelLevel()
distance = nil;

if (nArgs == 1 and args[1]== "help") then
	print("Turns and/or moves the turtle to the right")
	print("Usage: r [distance]")
	return
end

if nArgs == 1 then
  distance = tonumber(args[1])
  if distance == nil then
  	print(args[1], " is not a valid distance")
	return
  end
end

-- MAIN PROGRAM

turtle.turnRight()

if distance ~= nil then
	turtle.select(1)

	if currentFuelLevel ~= "unlimited" then
		if currentFuelLevel < minimumFuel then
			if not turtle.refuel() then
			  print("No fuel")
			  return
			end
		end
	end

	for i=1,distance do
		turtle.forward()
	end
end