using System.Collections;
using System.Collections.Generic;
using UnityEngine;

// ReSharper disable once CheckNamespace
namespace BlueWaterProject
{
    public class CutoutObject : MonoBehaviour
    {
        [SerializeField]
        private Transform targetObject;

        [SerializeField]
        private LayerMask wallMask;

        private Camera mainCamera;

        private void Awake()
        {
            mainCamera = GetComponent<Camera>();
        }
        private void Update()
        {
            Vector2 cutoutPos = mainCamera.WorldToViewportPoint(targetObject.position);
            cutoutPos.y /= (Screen.width / Screen.height);

            Vector3 offset = targetObject.position - transform.position;
            RaycastHit[] hitObjects = Physics.RaycastAll(transform.position, offset, offset.magnitude, wallMask);

            foreach (RaycastHit hit in hitObjects)
            {
                // Check if the hit object is closer to the camera than the target object
                if (hit.distance < offset.magnitude)
                {
                    Material[] materials = hit.transform.GetComponent<Renderer>().materials;

                    for (int m = 0; m < materials.Length; ++m)
                    {
                        materials[m].SetVector("_CutoutPos", cutoutPos);
                        materials[m].SetFloat("_CutoutSize", 0.25f);
                        materials[m].SetFloat("_FalloffSize", 0.05f);
                    }
                }
            }
        }
    }
}