How to move enemy sprite up down left and right randomly?

Hey guys, basically I want my "enemy AI" to move randomly up down left and right, for example "Every X seconds change direction to up/down/left/right" I can get it to move at random diagonals and move randomly in general but I only want it to move in those 4 directions.

I'm sure its something simple and I'll be like D'oh! Thanks in advance!

Pbodeh This is how i have managed to do this in one of my games

Add bullet behavior to the sprite you want to move in those 4 directions(set Bounce off solids Enable)

In event sheet try something like

Condition:

Every random(4,10) seconds

Action>Sprite

Set Bullet angle of motion 90 degrees

Condition:

Every random(4,10) seconds

Action>Sprite

Set Bullet angle of motion 180 degrees

Condition:

Every random(4,10) seconds

Action>Sprite

Set Bullet angle of motion 0 degrees

Condition:

Every random(4,10) seconds

Action>Sprite

Set Bullet angle of motion -90 degrees

Play around with it a little and hopefully you'll get the result you're looking for.

Oh thanks I'll give that a try! Thanks for your help