Lights blocked by light

Hey guys, I'm new to unity and I'm trying to create a 2D game. My game consists of a randomly generated dungeon, that is completely black except for your torch that you hold in your game. A problem I'm having is trying to get the light to not go through the walls. I wanted to know if it is possible if I could add a script to my light that wouldn't allow my light to go through the wall whenever there is a box collider of some sort (as to create realism). Thank you to anyone who replies.

 

If you're using 3d models to make a 2d style game, try making the walls thicker. Normally, that would solve that problem.

 

That's too funny lol. I found out about shadow casters 2D, and I also implemented a better art style that added thicker walls. But thanks anyways man