From 806e5f722e4baacb30923f802e151c31c48b6c94 Mon Sep 17 00:00:00 2001
From: swrring <swrring@naver.com>
Date: Thu, 7 May 2026 16:09:54 +0900
Subject: [PATCH] =?UTF-8?q?BT5-Dev=20#22=20=EC=A7=84=EC=A0=95=ED=95=9C=20?=
 =?UTF-8?q?=EA=B7=BC=EB=B3=B8:=20Enemy.prefab=20m=5FLayer=2013=E2=86=9214?=
 =?UTF-8?q?=20+=20m=5FTagString=20Player=E2=86=92Untagged=20+=20IgnoreLaye?=
 =?UTF-8?q?rCollision(13,14)?=
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본 PM 자인 (C5·C39·C44):
- BT5-Dev #1~#21 동안 Enemy.prefab m_Layer/m_TagString 영역 검증 X 누적
- Enemy의 m_Layer=13 (Player와 동일) + m_TagString=Player (Player tag 중복) = 진정한 근본
  → FindGameObjectWithTag("Player")가 Enemy 발견 + Layer 동일로 IgnoreCollision도 효과 X
- 본 PM이 추측·Bounds·Distance·IgnoreCollision·OneWay 영역 모두 = 도달 영역 외 정정

정정:
- Enemy.prefab m_Layer 13→14
- Enemy.prefab m_TagString Player→Untagged
- GameOptimizer Physics2D.IgnoreLayerCollision(13, 14, true) BeforeSceneLoad

영구 효과:
- FindGameObjectWithTag("Player") = Player.prefab만 발견 정합
- Player Layer 13 ↔ Enemy Layer 14 충돌 OFF = 통과 정합
- IgnoreCollision instance 영역 의존 X = 안전
---
 Assets/Prefabs/Enemy.prefab               | 4 ++--
 Assets/Scripts/Mechanics/GameOptimizer.cs | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Assets/Prefabs/Enemy.prefab b/Assets/Prefabs/Enemy.prefab
index 5bd3891..47e36fa 100644
--- a/Assets/Prefabs/Enemy.prefab
+++ b/Assets/Prefabs/Enemy.prefab
@@ -17,9 +17,9 @@ GameObject:
   - component: {fileID: 772289407653213039}
   - component: {fileID: 5843668731025413174}
   - component: {fileID: 7700000000000000002}
-  m_Layer: 13
+  m_Layer: 14
   m_Name: Enemy
-  m_TagString: Player
+  m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
diff --git a/Assets/Scripts/Mechanics/GameOptimizer.cs b/Assets/Scripts/Mechanics/GameOptimizer.cs
index 47e987f..e03960f 100644
--- a/Assets/Scripts/Mechanics/GameOptimizer.cs
+++ b/Assets/Scripts/Mechanics/GameOptimizer.cs
@@ -15,6 +15,11 @@ namespace Platformer.Mechanics
             Application.targetFrameRate = 60;
             QualitySettings.vSyncCount = 0;
             Time.fixedDeltaTime = 1f / 60f;
+
+            // BT5-Dev #22 — Layer 영역 분리: Player(13) ↔ Enemy(14) 충돌 영구 OFF.
+            // IgnoreCollision 영역 instance 의존 X = 모든 Player·Enemy 영역 자동 통과 영역.
+            Physics2D.IgnoreLayerCollision(13, 14, true);
+            Debug.Log($"[BT22-LayerSep] Player(13) ↔ Enemy(14) collision OFF");
         }
 
         /// <summary>