move

local args = {...}
local dir = args[1]
local steps = tonumber(args[2]) or 1
local side = "left"

up = colors.blue
down = colors.black
left = colors.magenta
right = colors.orange
front = colors.white
back = colors.red
armdown = colors.lightGray
armup = colors.lightBlue

if dir == "l" then dir = left
elseif dir == "r" or dir == "right" then dir = right
elseif dir == "u" or dir == "up" then dir = up
elseif dir == "d" or dir == "down" then dir = down
elseif dir == "f" or dir == "forward" then dir = front
elseif dir == "b" or dir == "back" then dir = back
elseif dir == "ad" then dir = armdown
elseif dir == "au" then dir = armup end

function pulse(col, num,time)
num = num or 1
  for i=1, num do
    rs.setBundledOutput(side,col)
    sleep(time)
    rs.setBundledOutput(side,0)
    sleep(time)
  end
end

local t = 1
if dir == armup or dir == armdown then t =.3 end
pulse(dir,steps,t)