제페토룸2

Assets/02_Scripts/Player/PlayerController.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Threading;
 using Unity.XR.CoreUtils;
 using UnityEngine;
 using UnityEngine.XR.Interaction.Toolkit.Locomotion.Movement;
@@ -7,6 +9,15 @@ public class PlayerController : MonoBehaviour, ISceneInitializable
     [Header("점프 설정")]
     [SerializeField] private float _jumpHeight = 1.2f;
 
+    [Header("시야 가림 렌더러")]
+    [SerializeField] private Renderer SightBlockingRenderer;
+    [SerializeField] private float _fadeSightDuration = 1f;   // 시야 가림 페이드에 걸리는 시간(초)
+
+    private static readonly int BaseColorId = Shader.PropertyToID("_BaseColor");
+    private static readonly int ColorId = Shader.PropertyToID("_Color");
+    private Material _sightMaterial;
+    private CancellationTokenSource _fadeSightCts;
+
     private Vector3 _playerVelocity;
     private CharacterController _controller;
     private ContinuousMoveProvider _moveProvider;
@@ -86,6 +97,58 @@ public void StandUp()
         if (_moveProvider != null) _moveProvider.enabled = true;    // 이동 잠금 해제
     }
 
+    // 호출되면 시야 가림 렌더러의 _BaseColor 알파를 현재 값에서 1까지 서서히 올린다(시야 가림).
+    public void FadeSight() => StartSightFade(1f);
+
+    // 호출되면 알파를 현재 값에서 0까지 서서히 내린다(시야 회복).
+    public void ClearSight() => StartSightFade(0f);
+
+    private void StartSightFade(float targetAlpha)
+    {
+        if (SightBlockingRenderer == null)
+        {
+            Debug.LogWarning("[PlayerController] SightBlockingRenderer가 비어 있습니다.");
+            return;
+        }
+
+        // .material 인스턴스를 써서 공유 머티리얼 에셋이 변형되지 않게 한다.
+        if (_sightMaterial == null)
+            _sightMaterial = SightBlockingRenderer.material;
+
+        // 진행 중이던 페이드가 있으면 취소하고 새로 시작
+        _fadeSightCts?.Cancel();
+        _fadeSightCts?.Dispose();
+        _fadeSightCts = new CancellationTokenSource();
+
+        _ = SightFadeAsync(targetAlpha, _fadeSightCts.Token);
+    }
+
+    private async Awaitable SightFadeAsync(float targetAlpha, CancellationToken token)
+    {
+        int propId = _sightMaterial.HasProperty(BaseColorId) ? BaseColorId
+                   : _sightMaterial.HasProperty(ColorId) ? ColorId
+                   : BaseColorId;
+
+        Color color = _sightMaterial.GetColor(propId);
+        float startAlpha = color.a;
+        float t = 0f;
+
+        try
+        {
+            while (t < _fadeSightDuration)
+            {
+                t += Time.deltaTime;
+                color.a = Mathf.Lerp(startAlpha, targetAlpha, t / _fadeSightDuration);
+                _sightMaterial.SetColor(propId, color);
+                await Awaitable.NextFrameAsync(token);
+            }
+
+            color.a = targetAlpha;
+            _sightMaterial.SetColor(propId, color);
+        }
+        catch (OperationCanceledException) { }
+    }
+
     private void Update()
     {
         // 바닥 체크 및 Y축 속도 초기화
@@ -98,4 +161,10 @@ private void Update()
         _playerVelocity.y += gravityValue * Time.deltaTime;
         _controller.Move(_playerVelocity * Time.deltaTime);
     }
+
+    private void OnDestroy()
+    {
+        _fadeSightCts?.Cancel();
+        _fadeSightCts?.Dispose();
+    }
 }