Character controller passes through mesh collider

Question

I need a little help figuring out what's going on with an NPC's character controller. Here are the character controller settings for the NPC.

The problem I'm running into is that the NPC isn't walking up a slight gradient as it should; instead, it moves through the ground.

Below are the settings for the ground.

The NPC isn't on the ground- it is a few units off. Any help is greatly appreciated.

Thanks in advance...

Answer 1

Use a raycast or this script. http://forum.unity3d.com/threads/groundnpc.181705/#post-1241872

Don't add a Rigidbody if you use the controller. It breaks it big time.

And check off convex on the mesh collider for your terrain. Try this first before adding a script. I remember having this problem before and that's all it took.

Answer 2

This is an update to a script found here:

This is a simple fix that prevents NPCs from walking through sloped mesh.

#pragma strict

var gravity = 20.0;
var verticalSpeed= 0.0;
private var collisionFlags : CollisionFlags;  // The last collision flags returned from 
                                              // controller.Move

function Update() 
{   
    ApplyGravity();

    // Calculate actual motion
    var movement = Vector3 (0, verticalSpeed, 0) + Vector3.zero;
    movement *= Time.deltaTime;

    // Move the controller
    var controller : CharacterController = GetComponent.<CharacterController>();
    collisionFlags = controller.Move(movement);
}

function ApplyGravity()
{
    verticalSpeed = IsGrounded() ? 0.0 : verticalSpeed - gravity * Time.deltaTime
}

function IsGrounded()
{
    var controller : CharacterController = GetComponent.<CharacterController>();
    return (controller.collisionFlags == CollisionFlags.Below);
}