How do I make precise enemy paths ?

Hi guys, in oldschool space shooters the enmies had a fixed path...for example they scroll down verticaly, than the go left...again vertically...than horizontally ecc.... how can I do something like that ?

thanks

I would use a state maschine.

eg. (pseudocode)

  while y < 100 {
  state 1: move n px right
  state 2: move n px down
  state 3: move n px left
  state 4: move n px down
  state 5: state = 1
}
[/code:3r7on28k]

is there a capx file to understand that... ? i am a bit new in the field...anyway thank U

is there a capx file to understand that... ? i am a bit new in the field...anyway thank U

here's a simple demo of a state maschine:

thanks...very kind and helpful