Mouse Controlled Camera third-person

[gamingdevotee]

I want to make a camera that can move around behind the player in third-person, it should be able to rotate using mouse-based movement on the X-axis and will make it easier to track the player.

[notleeandrew]

To use this you need to tag the player as "Player", the rest is already built into unity. You then need to attach it to the camera.

public GameObject target;
public float rotateSpeed = 5f;
Vector3 offset;
// Use this for initialization
void Start () {
    offset = target.transform.position - transform.position;
    target = GameObject.FindGameObjectWithTag ("Player");
}

// Update is called once per frame
void LateUpdate () {
    float horizontal = Input.GetAxis ("Mouse X") * rotateSpeed;
    target.transform.Rotate(0, horizontal, 0);

    float desiredAngle = target.transform.eulerAngles.y;
    Quaternion rotation = Quaternion.Euler(0, desiredAngle, 0);
    transform.position = target.transform.position - (rotation * offset);

    transform.LookAt(target.transform);
}

}