Unity Script Generated by ScripterAI

"create a third person player controller that can walk, sprint, jump and roll. make the movement relative the direction the camera is facing. make sure the character is facing forward when they walk. include a description of how to implement it"

```csharp
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ThirdPersonController : MonoBehaviour
{
    public float speed = 3.0F;
    public float sprintSpeed = 6.0F;
    public float jumpSpeed = 8.0F;
    public float rollSpeed = 8.0F;
    public float gravity = 20.0F;
    private Vector3 moveDirection = Vector3.zero;

void Update()
    {
        CharacterController controller = GetComponent<CharacterController>();

if (controller.isGrounded)
        {
            // Get the input vector from keyboard or analog stick
            Vector3 direction = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));

if (direction.sqrMagnitude > 0.01f)
            {
                transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(direction), Time.deltaTime * 10);
            }

if (Input.GetKey(KeyCode.LeftShift))
            {
                moveDirection = transform.TransformDirection(direction) * sprintSpeed;
            }
            else
            {
                moveDirection = transform.TransformDirection(direction) * speed;
            }

if (Input.GetButton("Jump"))
            {
                moveDirection.y = jumpSpeed;
            }

if (Input.GetButton("Roll"))
            {
                moveDirection = transform.TransformDirection(direction) * rollSpeed;
            }
        }

// Apply gravity
        moveDirection.y -= gravity * Time.deltaTime;

// Move the controller
        controller.Move(moveDirection * Time.deltaTime);
    }
}
```
/* To implement this script in Unity, follow these steps:
1. Create a new GameObject (or use an existing one) that you want to apply the third person controller to.
2. Make sure the GameObject has a CharacterController component attached.
3. Attach this script to the GameObject.
4. Set the speed, sprint speed, jump speed, roll speed, and gravity values in the Inspector.
5. Use the WASD keys to move, Space to jump, and the Roll button (which you'll need to set up in the Input Manager) to roll. The character will move relative to the camera's direction.
6. The character will always face the direction they're moving in. */