유니티 C# 두번 터치로 카메라 줌인 간단 구현 Camera Zoom in

• 코드 작성

using UnityEngine;

public class CameraZoom : MonoBehaviour
{
    public float zoomSpeed = 0.1f;
    public float minZoom = 1f;
    public float maxZoom = 10f;

    private float currentZoom = 1f;

    void Update()
    {
        if (Input.touchCount == 2)
        {
            Touch touchZero = Input.GetTouch(0);
            Touch touchOne = Input.GetTouch(1);

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

            float prevTouchDeltaMag = (touchZeroPrevPos - touchOnePrevPos).magnitude;
            float touchDeltaMag = (touchZero.position - touchOne.position).magnitude;

            float deltaMagnitudeDiff = prevTouchDeltaMag - touchDeltaMag;

            currentZoom += deltaMagnitudeDiff * zoomSpeed;

            currentZoom = Mathf.Clamp(currentZoom, minZoom, maxZoom);

            transform.position += transform.forward * deltaMagnitudeDiff * zoomSpeed;
            transform.localScale = new Vector3(currentZoom, currentZoom, currentZoom);
        }
    }
}