Getting the camera to follow target and rotate around target

Questions & Answers
1

Hey guys. I have been trying to figure out how to do this for around 45 minutes. I am trying to get the camera to follow a target while allowing for the use of the Unity Engine function rotatearound().

This is what i have got at the moment for moving the camera to rotate around:

if (Input.GetKey(KeyCode.A))
{
     degrees += 60f * Time.deltaTime;
     transform.RotateAround(target.position, Vector3.up, degrees);
 }

That does the rotation correctly. The problem i am having is when i use the below code to follow the target it will negate the rotatearound because i am setting the position to be changed. What can i use to let the camera do both of these things?

 Vector3 targetCamPos = target.position + offset;  
transform.position = Vector3.Lerp(transform.position, targetCamPos, smoothing * Time.deltaTime);

Thanks

2

So i think i would need to answer my own question. I managed to solve it with clamping and zooming.

 public Transform cameraTarget;
    private float x = 0.0f;
    private float y = 0.0f;
    private int HorizontalSpeed = 5;
    private int VerticalSpeed = 2;

    public float MaxViewDistance = 25f;
    public float MinViewDistance = 10f;
    public int ZoomRate = 20;

    private float CamDistance = 3f;
    private float DesiredDistance = 0f;
    private float CorrectedDistance = 0f;

    // Use this for initialization
    void Start()
    {
        Vector3 angles = transform.eulerAngles;
        x = angles.x;
        y = angles.y;
    }

    void LateUpdate()
    {

        x += Input.GetAxis("Horizontal") * HorizontalSpeed;
        y += Input.GetAxis("Vertical") * VerticalSpeed;
        

        y = ClampAngle(y, 20, 80);
        Quaternion rotation = Quaternion.Euler(y, x, 0);
        
        DesiredDistance -= Input.GetAxis("Mouse ScrollWheel") * Time.deltaTime * ZoomRate * Mathf.Abs(DesiredDistance);
        DesiredDistance = Mathf.Clamp(DesiredDistance, MinViewDistance, MaxViewDistance);
        CorrectedDistance = DesiredDistance;

        Vector3 position = cameraTarget.position - (rotation * Vector3.forward * DesiredDistance);

        transform.rotation = rotation;
        transform.position = position;
    }

    private static float ClampAngle(float angle, float min, float max)
    {
        if (angle < -360)
        {
            angle += 360;
        }

        if (angle > 360)
        {
            angle -= 360;
        }
        return Mathf.Clamp(angle, min, max);
    }