How do I create a wall

[miccool]

Hi, I'm new to game editor. I've created some actors and added animations. I have it where they can walk arouns the background I added. But I added some tiles I created to make a wall. How do I make it or script it for when the event actor walks into the walls, it will stop them. As of right now, the actor walks through them?

[Caaz Games]

use a collision event

Add Event>Collision event>Phisical Event>go to the bottom type in 0