Unity 3D Generic Mecanim Character Script

using UnityEngine;
using System.Collections;

public class Character : MonoBehaviour {

    public float turnSpeed;

    Animator animator;
    Vector3 lookPos;
    bool onGround;

    // Use this for initialization
    void Start () {

        animator = GetComponentInChildren<Animator>();

    }

    // Update is called once per frame
    public void Move (float forward, float turn, bool walk, Vector3 lookPos) {

        this.lookPos = lookPos;

        transform.Rotate(0, turn*turnSpeed*Time.deltaTime, 0);

        forward *= (walk ? 0.5f : 1);

        rigidbody.angularVelocity = Vector3.zero;

        animator.SetFloat("Forward", forward, 0.1f, Time.deltaTime );
        animator.SetFloat("Turn", turn, 0.1f, Time.deltaTime );

        animator.applyRootMotion = onGround;

        onGround = false;
    }


    void OnCollisionStay( Collision c )
    {
        foreach ( ContactPoint p in c.contacts )
        {
            Vector3 localP = transform.InverseTransformPoint( p.point );

            if (localP.magnitude < (collider as CapsuleCollider).radius)
            {
                onGround = true;
            }
        }
    }


    void OnAnimatorIK(int layerIndex)
    {
        animator.SetLookAtWeight(1, 0.2f, 2.5f);
        animator.SetLookAtPosition( lookPos );
    }



}