From 5e796cc5e241522d87b9e3a9e739e844dd7e1bda Mon Sep 17 00:00:00 2001
From: swrring <swrring@naver.com>
Date: Thu, 7 May 2026 17:29:30 +0900
Subject: [PATCH] =?UTF-8?q?BT5-Dev=20#32:=20PlatformDropThrough=20Awake/St?=
 =?UTF-8?q?art=20=EC=A7=84=EB=8B=A8=20=EB=A1=9C=EA=B7=B8=20+=20raycast=20?=
 =?UTF-8?q?=EB=AC=B4=ED=95=9C=EB=8C=80?=
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[BT31-StartHit] 출력 0건 진단:
1. PlatformDropThrough 부착 X 또는 Awake/Start 호출 X
2. Start raycast 거리 0.5m 이내 발판 X (Player 시작 위치 발판 멀리)

진단 영역:
- Awake: [BT32-DropThrough] self/ko/mask 출력
- Start: [BT32-DropThrough] Start called + raycast 결과 출력
  - hit Layer 8: [BT32-StartHit] dist·platform name·layer
  - miss: [BT32-StartHit] no Layer 8 + 모든 Layer raycast로 anyHit 출력
- raycast 거리 무한대 (Mathf.Infinity)
---
 .../Scripts/Mechanics/PlatformDropThrough.cs   | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Assets/Scripts/Mechanics/PlatformDropThrough.cs b/Assets/Scripts/Mechanics/PlatformDropThrough.cs
index a63836f..8765b3c 100644
--- a/Assets/Scripts/Mechanics/PlatformDropThrough.cs
+++ b/Assets/Scripts/Mechanics/PlatformDropThrough.cs
@@ -26,19 +26,31 @@ namespace Platformer.Mechanics
             _self = GetComponent<Collider2D>();
             _ko = GetComponent<KinematicObject>();
             _jumpThroughMask = 1 << JUMP_THROUGH_LAYER;
+            Debug.Log($"[BT32-DropThrough] Awake — self={(_self != null ? "OK" : "NULL")} ko={(_ko != null ? "OK" : "NULL")} mask={_jumpThroughMask}");
         }
 
         void Start()
         {
-            // BT5-Dev #31 — 게임 시작 시 즉시 raycast 1회 → Player 시작 위치가 발판 위면 즉시 충돌 활성 (떨어짐 차단)
+            Debug.Log($"[BT32-DropThrough] Start called");
             if (_self == null) return;
             Vector2 footPos = new Vector2(_self.bounds.center.x, _self.bounds.min.y + 0.02f);
-            RaycastHit2D startHit = Physics2D.Raycast(footPos, Vector2.down, footRayDistance, _jumpThroughMask);
+            // BT32 — 거리 무한대 = Player 시작 위치 영역 발판 영역 영역 식별
+            RaycastHit2D startHit = Physics2D.Raycast(footPos, Vector2.down, Mathf.Infinity, _jumpThroughMask);
             if (startHit.collider != null)
             {
                 Physics2D.IgnoreCollision(_self, startHit.collider, false);
                 _activePlatform = startHit.collider;
-                Debug.Log($"[BT31-StartHit] Player 시작 위치 발판 영역 충돌 활성: {startHit.collider.gameObject.name}");
+                Debug.Log($"[BT32-StartHit] dist={startHit.distance:F2} platform='{startHit.collider.gameObject.name}' layer={startHit.collider.gameObject.layer}");
+            }
+            else
+            {
+                Debug.Log($"[BT32-StartHit] no Layer 8 platform below footPos={footPos} (mask={_jumpThroughMask})");
+                // 마지막 수단 — 모든 Layer raycast해서 가장 가까운 영역 식별
+                RaycastHit2D anyHit = Physics2D.Raycast(footPos, Vector2.down, Mathf.Infinity);
+                if (anyHit.collider != null)
+                    Debug.Log($"[BT32-AnyHit] anyLayer dist={anyHit.distance:F2} platform='{anyHit.collider.gameObject.name}' layer={anyHit.collider.gameObject.layer}");
+                else
+                    Debug.Log($"[BT32-AnyHit] NOTHING below player");
             }
         }