How to make wandering 2D Enemies?

Frazzle

So, how could I make the enemy (Purple slime in this image) WANDER from left to right without falling off the cliff?
By wander i mean i don't want it to move left to right etc. like a goomba, but instead to move a few pixels left or right, from time to time.
Any help is appreciated, FM.

Braydon_SFX

Maybe put a random timer, in that timer put a interpolate self position x to whatever. This should get you going.

tatiang

Use a timer set to run at a random interval and then have another randomizer inside of the timer to pick a direction. Then use a Move behavior to move the slime in that direction.

Let's say you want to constrain the slime to an x value between 200 and 280. Constrain attribute self.position.x to max(200,min(self.position.x,280)).

Here's a demo: http://dl.dropbox.com/u/19602014/Random sideways movement.zip

Frazzle

Thanks for the tips guys, am working on it.