using UnityEngine;

public class CameraZoom : MonoBehaviour
{

    void Start()
    {
        Camera.main.orthographicSize = 6;
    }


    void Update()
    {
      
         
        float wheelInput = Input.GetAxis("Mouse ScrollWheel");                  //Mouse wheel의 움직임에 따라 wheelInput의 값이 달라짐
        if (wheelInput > 0)                                                     // wheel을 위에 방향으로
        {
            Camera.main.orthographicSize = Camera.main.orthographicSize - 1 ;   // Camera size 줄이기 = zoom in

            if (Camera.main.orthographicSize < 3)
            {
                Camera.main.orthographicSize = 3;                               // Min size  fix하기
            }
        }

       
        if (wheelInput < 0)                                                     //wheel을 아래 방향으로
        {
            Camera.main.orthographicSize = Camera.main.orthographicSize + 1;    // Camera size 키우기 = zoom out

            if (Camera.main.orthographicSize > 9)
            {
                Camera.main.orthographicSize = 9;                               // Max size fix하기
            }
        }
    }

}