How can I add Clamp or something else to make limit for my camera moving?

Questions & Answers
1

Hi guys. I would be grateful if someone can help me find a solution for my problem, as I’m trying to make a mobile game, but I can’t seem to limit the camera. Thank you all in advance.

using UnityEngine;

public class PanZoom : MonoBehaviour
{
    Vector3 touchStart;
    public float zoomOutMin = 200;
    public float zoomOutMax = 450;
    public bool isZooming;

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            isZooming = false;
            touchStart = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        }
        if (Input.touchCount == 2)
        {
            isZooming = true;
            Touch touchZero = Input.GetTouch(0);
            Touch touchOne = Input.GetTouch(1);

            Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
            Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;

            float prevMagnitude = (touchZeroPrevPos - touchOnePrevPos).magnitude;
            float currentMagnitude = (touchZero.position - touchOne.position).magnitude;

            float difference = currentMagnitude - prevMagnitude;

            zoom(difference * 1f);
        }
        else if (Input.GetMouseButton(0) && !isZooming)
        {
            Vector3 direction = touchStart - Camera.main.ScreenToWorldPoint(Input.mousePosition);
            Camera.main.transform.position += direction;
        }
        zoom(Input.GetAxis("Mouse ScrollWheel"));
    }
    void zoom(float increment)
    {
        Camera.main.orthographicSize = Mathf.Clamp(Camera.main.orthographicSize - increment, zoomOutMin, zoomOutMax);
    }
}