Factorio-like sprite directions

Hi! I'm trying to make a simple turret defense game. I wanted it to look aesthetically similar to factorio (2.5D, 2D renders of 3D objects) I would like to know how do I change my sprite based on the direction the 2D gameobject is looking at? I've seen this sheet in a factorio mod for example:

I can make sprites like this using 3DSMax/rendering, but how do I change them based on the direction of my unity 2D gameobject?