Turn

tArgs = {...}
direction = tArgs[1]
if direction == 0 then
		if currentFacing == 1 then
			shell.run('TurnLeft',(1))
		elseif currentFacing == 2 then
			shell.run('TurnRight',(2))
		elseif currentFacing == 3 then
			shell.run('TurnRight',(1))
		end
	elseif direction == 1 then
		if currentFacing == 2 then
			shell.run('TurnLeft',(1))
		elseif currentFacing == 3 then
			shell.run('TurnRight',(2))
		elseif currentFacing == 0 then
			shell.run('TurnRight',(1))
		end
	elseif direction == 2 then
		if currentFacing == 3 then
			shell.run('TurnLeft',(1))
	elseif currentFacing == 0 then
		shell.run('TurnRight',(2))
	elseif currentFacing == 1 then
		shell.run('TurnRight',(1))
	end

	else -- direction 3
		if currentFacing == 0 then
			shell.run('TurnLeft',(1))
		elseif currentFacing == 1 then
			shell.run('TurnRight',(2))
		elseif currentFacing == 2 then
		shell.run('TurnRight',(1))
		end
	end