Движение персонажа по клику мыши

using UnityEngine;
using System.Collections;
 
public class ClickMove : MonoBehaviour
{
    public float stopStart = 1.5f, speed = 5f, rotationSpeed = 100f, heightPlayer = 1f;
    private float mag, angleToTarget;
    private Ray ray;  
    private RaycastHit hit;
    private Vector3 dir;
    private Vector3 target = new Vector3();
    private Vector3 lastTarget = new Vector3();
    private bool walk;
 
    private void Update()
    {
        if (Input.GetMouseButton(1))
        {
            Graphic.wasClicked = true;
            ray = UnityEngine.Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out hit, 10000.0f))
            {
                target = hit.point;
            }
        }
        LookAtThis();
        MoveTo();
    }
 
    private void CalculateAngle(Vector3 temp)
    {
        dir = new Vector3(temp.x, transform.position.y, temp.z) - transform.position;
        angleToTarget = Vector3.Angle(dir, transform.forward);
    }
 
    private void LookAtThis()
    {
        if (target != lastTarget)
        {
            CalculateAngle(target);
            if (angleToTarget > 3)
                transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.LookRotation(dir), rotationSpeed * UnityEngine.Time.deltaTime);
        }
    }
 
    private void MoveTo()
    {
        if (target != lastTarget)
        {
            if ((transform.position - target).sqrMagnitude > heightPlayer + 0.1f)
            {
                if (!walk)
                {
                    Debug.Log("walk");
                    //animation.Play("run", PlayMode.StopAll);
                    walk = true;
                }
                mag = (transform.position - target).magnitude;
                transform.position = Vector3.MoveTowards(transform.position, target, mag > stopStart ? speed * UnityEngine.Time.deltaTime : Mathf.Lerp(speed * 0.5f, speed, mag / stopStart) * UnityEngine.Time.deltaTime);
                ray = new Ray(transform.position, -Vector3.up);
                if (Physics.Raycast(ray, out hit, 1000.0f))
                {
                    transform.position = new Vector3(transform.position.x, hit.point.y + heightPlayer, transform.position.z);
                }
            }
            else
            {
                lastTarget = target;
                if (walk)
                {
                    Debug.Log("idle");
                    //animation.Play("idle", PlayMode.StopAll);
                    walk = false;
                }
            }
        }
    }
}