Character look to mouse

I am trying to get my character to look to where my mouse is pointing while using the wasd keys for movement. I have tried several different scripts but none have worked. I'm not sure what it is that is hindering my character from turning. Any suggestions?

 

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. [System.Serializable]
5. public class Boundary
6. {
7.     public float xMin, xMax, zMin, zMax;
8. }
9.  
10. public class PlayerController : MonoBehaviour
11. {
12.     public float speed;
13.     Vector3 movement;
14.     public Boundary boundary;
15.     new Rigidbody rigidbody;
16.     int floorMask;
17.     float camRayLength = 100f;
18.  
19.     public GameObject shot;
20.     public Transform shotSpawn;
21.     public float fireRate;
22.  
23.     private float nextFire;
24.  
25.     void Update()
26.     {
27.        
28.         if (Input.GetButton ("Fire1") && Time.time > nextFire) {
29.             nextFire = Time.time + fireRate;
30.             Instantiate (shot, shotSpawn.position, shotSpawn.rotation);
31.             GetComponent<AudioSource>().Play ();
32.         }
33.     }
34.  
35.     void Start()
36.     {
37.  
38.         floorMask = LayerMask.GetMask("Floor");
39.         rigidbody = GetComponent<Rigidbody> ();
40.     }
41.  
42.     void FixedUpdate ()
43.     {
44.  
45.         float h = Input.GetAxis ("Horizontal");
46.         float v = Input.GetAxis ("Vertical");
47.  
48.         Move(h, v);
49.  
50.         Turning();
51.  
52.         rigidbody.position = new Vector3
53.             (
54.                 Mathf.Clamp(rigidbody.position.x, boundary.xMin, boundary.xMax),
55.                 0.0f,
56.                 Mathf.Clamp(rigidbody.position.z, boundary.zMin, boundary.zMax)
57.                 );
58.  
59.        
60.     }
61.  
62.     void Move(float h, float v)
63.     {
64.         movement.Set(h, 0f, v);
65.  
66.         movement = movement.normalized * speed * Time.deltaTime;
67.  
68.         rigidbody.MovePosition(transform.position + movement);
69.     }
70.  
71.     void Turning()
72.     {
73.         Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);
74.  
75.         RaycastHit floorHit;
76.  
77.         if (Physics.Raycast(camRay, out floorHit, camRayLength, floorMask))
78.         {
79.             Vector3 playerToMouse = floorHit.point - transform.position;
80.  
81.             playerToMouse.y = 0f;
82.  
83.             Quaternion newRotation = Quaternion.LookRotation(playerToMouse);
84.  
85.             rigidbody.MoveRotation(newRotation);
86.         }
87.     }
88. }

 

There are a few tiny issues. For one, I think you want the inverse of floorMask (~floorMask) to pass into the raycast check.

Also, I changed the contents of your "if" statement block to simply be:

Code (csharp):

1.         if (Physics.Raycast(camRay, out floorHit, camRayLength, ~floorMask))
2.         {
3.             transform.LookAt ( floorHit.point);
4.         }

Now when I did that, the act of rotating the rigidbody "drives" it funny on the map, so it is probably best to rotate a sub component of the player rather than his rigidbody. I will leave that change to you!