View difference between Paste ID: 7W5mjWNh and 9rAdFy6d

 print("Spacial Controls:")
 print("W/S = Forward/Back")
 print("A/D = Turn Left/Right")
 print("Space/Shift = Move Up/Down")
 print("Other Commands:")
 print("ESC = Exit Program/Exit Turtle Interface")
 print("R = Refuel from any slot")
 
 function forward()
   turtle.forward()
 end
 
 function back()
   turtle.back()
 end
 
 function lt()
   turtle.turnLeft()
 end
 
 function rt()
   turtle.turnRight()
 end
 
 function up()
   turtle.up()
 end
 
 function down()
   turtle.down()
 end
 
 function refuel()
   for i = 1, 16 do
     turtle.select(i)
     turtle.refuel(64)
   end
 end
 
 function terminate()
   os.reboot()
 end
 
 commands = {[17] = forward,  [31] = back,  [30] = lt,  [32] = rt, [57] = up, [42] = down, [19] = refuel, [1] = terminate}
 
 while true do
 event, button = os.pullEvent("key")
 fn = commands[button]
 
   if fn ~= nil then
     fn()
   end
 end