NPCs fall through hills in terrain

Questions & Answers
1

I currently have a problem where my mobs are falling through hills in the terrain. They walk fine over the flat parts, but as soon as they hit a slight slope they fall through it.

I’m walking them towards the player with

transform.Translate(0,0,Time.deltaTime);
transform.position += transform.forward * Time.deltaTime;

Anyone know what the problem is here?

alt text

2

Yep. The problem is that you’re not moving them correctly.

You’re changing their actual position in space. When you do that, it ignores physics until after the move is done. If the translation moves a unit into a hill, their collider will no longer be on top of the hill and they fall through.

The zombies appear to be controlled by CharacterController. Use 1 or SimpleMove to move them.