What is the best way for an enemy to get around walls in a Top Down game? [SOLVED]

Hi guys!

I'm developing a Top-Down (4 direction) game in which the enemy chases the player when they see him, but how do I stop him from getting stuck on the walls of the stages?

I've already tried to make him avoid walls when close to them using Compare X and Y, but still without success.

Below is a print of the enemy's AI programming:

iili.io/daO0gaf.jpg

Suggestions?

> > Give them a push: dropbox.com/s/4tjnro8xiy4j6tm/sesame_instance.capx

>

> or

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> > Pushing away from obstacle example: dropbox.com/s/elew687p4kdy9of/Avoid_Obstacles_PUSH.capx

Unfortunately it doesn't work well, as the enemy keeps slowly shaking on the walls, until they come out of it towards the player character. :(

I would like something more natural and soft.

alextro

I think I need to use those lines of code below, but it still don't work well in my 8 direction game. :(

i.ibb.co/fDBLwcs/Print.jpg

Can you explain what do these three Lerp values reference? (10, 90, 0.3)

It means adding additional angle deviation (taking turn) from 10 degree to 90 degree with estimation of 3/10 fraction. If the interpolate estimation value is 1 it means reach 90 degree immediately at full fraction. It's an old code anyway that should be replaced by anglelerp so it would be Self.Angle + anglelerp(10, 90, 0.3).

Ok! Thanks!

The characters in my game don't rotate, as they have the classic 4-way movement of Top Down games. What I need is a basic AI that smoothly dodges walls while chasing the player character.

It may be not easy to understand, but following example does the job avoiding obstacle for perfect grid movement: dropbox.com/scl/fi/9e9w6kcpfa024h1bsq0zy/path_touch.capx

Are all these examples yours?

With the little time (and energy) I have lately, I still haven't been able to implement the programming logic from your last example in my game. :(

(I think the checkered floor creates a grid that makes the programming logic different from my 4 direction game.)