Make the BlockPerimeter sprite visible, it will help to understand how the code works. When Enemy is overlapping 3 instances of BlockPerimeter, this means a corner where it needs to turn right. When it doesn't overlap any BlockPerimeter sprites, it's a corner to turn left.

It's a pretty specific demo, because all sprites need to be places with pixel precision. So it will probably not suit your game, but it may give you some ideas.

Interesting. I must study this. Thanks again dop2000.

I made a demo for another post, take a look:

https://www.dropbox.com/s/g61j043mgr1pkkn/SimpleStickingMob_dop2000_fixed.capx?dl=0

Another option is to make a path for each enemy - say, with small invisible sprites. Move the enemy from one sprite to another. You can define several instance variables on these sprites to control the movement, say to change direction, turn or pause.

Excellent demo. It runs very smooth. I took a peak at the code...I don't understand it very well but I will try to implement it.

And the invisible sprites I can visualize exactly what you are saying. I can always give that a shot too.

I really appreciate your response dop2000! Thank you for taking the time to answer.

Can anyone please advice me on how to set up block crawler enemies? The kind that go round and round on a platform.

Like on this image(the ones below Samus): https://pocketmedia.ign.com/pocket/image/metroidzeromission_013004_2.jpg?fit=bounds&dpr=1&quality=75&width=640&height=480

Thank you friends.

I appreciate the advice! Thank you very much!

Any help?

Youtube video:

youtu.be/Xd0NW8fwLSI

Video and pics below.

This lil guy is meant to stop the shooting animation after the projectile has been launched. Unfortunately if you move while holding L (the trigger key) he stays in the shoot animation. It looks ridiculous of course. I know I can fix this if I say that the character must be stopped to do the shooting action but I want to be able to move and shoot at the same time. I tried changing L key is down with L key is pressed but the animation does not respond to it. I have tried moving a bunch of things around but I cannot get it.