CapersProject/Assets/02.Scripts/Prop/Rockfall.cs

using System;
using System.Collections;
using BlueWater.Audios;
using BlueWater.Interfaces;
using BlueWater.Maps;
using Sirenix.OdinInspector;
using UnityEngine;
using UnityEngine.Rendering.Universal;

namespace BlueWater
{
    public class Rockfall : DamageableProps
    {
        [Title("컴포넌트")]
        [SerializeField]
        private Rigidbody _rigidbody;
        
        [SerializeField, Required]
        private SphereCollider _sphereCollider;
        
        [SerializeField]
        private DecalProjector _indicator;
        
        [Title("표시기 설정")]
        [SerializeField]
        private bool _isUsingIndicator = true;
        
        [Title("충돌 설정")]
        [SerializeField]
        private LayerMask _targetLayer;
        
        [SerializeField]
        private LayerMask _groundLayer;
        
        [SerializeField, Range(0f, 1f)]
        private float _checkDistance = 0.1f;

        [SerializeField, Range(0, 5)]
        private int _attackDamage = 1;
       
        [Title("Ground Crash 설정")]
        [SerializeField]
        private string _groundCrashSfxName;
       
        [SerializeField]
        private ParticleSystem _groundCrashParticle;
        
        private Collider[] _hitColliders = new Collider[4];
        private RaycastHit _raycastHit;
        private float _startDistance = float.PositiveInfinity;
        private bool _isGrounded;
        private bool _isAttacked;
        
        // Hashes
        private static readonly int _fillHash = Shader.PropertyToID("_Fill");

        private void OnDrawGizmos()
        {
            Debug.DrawRay(transform.position, Vector3.down * _checkDistance, _isGrounded ? Color.blue : Color.red);
        }

        private void Start()
        {
            _sphereCollider.enabled = false;
            SpawnLocation = MapManager.Instance.SandMoleMapController.ParticleInstantiateLocation;
            
            if (!Physics.Raycast(transform.position, Vector3.down, out _raycastHit, 10f, _groundLayer))
            {
                Debug.LogError("땅을 감지하지 못하는 버그");
                return;
            }
            
            BasicSetting();
            ShowIndicator();
            _startDistance = _raycastHit.distance;
        }

        private void FixedUpdate()
        {
            if (!Physics.Raycast(transform.position, Vector3.down, out _raycastHit, 10f, _groundLayer))
            {
                Debug.LogError("땅을 감지하지 못하는 버그");
                return;
            }
            _isGrounded = _raycastHit.distance <= _checkDistance;

            if (!_isGrounded)
            {
                if (_isUsingIndicator && _indicator)
                {
                    var fillValue = Mathf.Lerp(1f, 0f, _raycastHit.distance / _startDistance);
                    _indicator.material.SetFloat(_fillHash, fillValue);
                }
            }
            else if (_isGrounded && !_isAttacked)
            {
                _indicator.material.SetFloat(_fillHash, 1f);
                HideIndicator();
                
                if (_rigidbody)
                {
                    _rigidbody.isKinematic = true;
                }
                _sphereCollider.enabled = true;
            
                if (!string.IsNullOrEmpty(_groundCrashSfxName))
                {
                    AudioManager.Instance.PlaySfx(_groundCrashSfxName);
                }

                if (_groundCrashParticle && SpawnLocation)
                {
                    Instantiate(_groundCrashParticle, transform.position, Quaternion.identity, SpawnLocation);
                }

                var hitCount = Physics.OverlapSphereNonAlloc(_sphereCollider.bounds.center, _sphereCollider.radius,
                    _hitColliders, _targetLayer, QueryTriggerInteraction.Collide);
                for (var i = 0; i < hitCount; i++)
                {
                    var hitCollider = _hitColliders[i];
                    var iDamageable = hitCollider.GetComponentInParent<IDamageable>();
                    if (iDamageable == null || !iDamageable.CanDamage()) continue;
                
                    iDamageable.TakeDamage(_attackDamage);
                    Die();
                }

                _isAttacked = true;
            }
        }
        
        private void BasicSetting()
        {
            if (!_isUsingIndicator || !_indicator) return;
            
            _indicator.scaleMode = DecalScaleMode.InheritFromHierarchy;
            _indicator.material = new Material(_indicator.material);
            _indicator.material.SetFloat(_fillHash, 0f);
        }
        
        private void HideIndicator()
        {
            if (!_isUsingIndicator || !_indicator) return;
            
            _indicator.enabled = false;
            _indicator.material.SetFloat(_fillHash, 0);
        }
        
        private void ShowIndicator()
        {
            if (!_isUsingIndicator || !_indicator) return;
            
            _indicator.material.SetFloat(_fillHash, 0);
            _indicator.enabled = true;
        }
    }
}