Unity Script Generated by ScripterAI

"zoom in and zoom out object class with start and update methods"

public class ZoomInZoomOut : MonoBehaviour {

Camera mainCamera;
        float touchesPrevPosDifference, touchesCurPosDifference, zoomModifier;
        Vector2 firstTouchPrevPos, secondTouchPrevPos;
        [SerializeField]
        float zoomModifierSpeed = 0.1f;
        [SerializeField]
        Text text;

void Start () {
                mainCamera = GetComponent<Camera> ();
        }
        
        void Update () {
                
                if (Input.touchCount == 2) {
                        Touch firstTouch = Input.GetTouch (0);
                        Touch secondTouch = Input.GetTouch (1);

firstTouchPrevPos = firstTouch.position - firstTouch.deltaPosition;
                        secondTouchPrevPos = secondTouch.position - secondTouch.deltaPosition;

touchesPrevPosDifference = (firstTouchPrevPos - secondTouchPrevPos).magnitude;
                        touchesCurPosDifference = (firstTouch.position - secondTouch.position).magnitude;

zoomModifier = (firstTouch.deltaPosition - secondTouch.deltaPosition).magnitude * zoomModifierSpeed;

if (touchesPrevPosDifference > touchesCurPosDifference)
                                mainCamera.orthographicSize  = zoomModifier;
                        if (touchesPrevPosDifference < touchesCurPosDifference)
                                mainCamera.orthographicSize -= zoomModifier;
                }

mainCamera.orthographicSize = Mathf.Clamp (mainCamera.orthographicSize, 2f, 10f);
                text.text = "Camera size "   mainCamera.orthographicSize;
        }
}