2026-05-18 버그 수정

Assets/02_Scripts/Enemy/Enemy.cs

@@ -19,6 +19,12 @@ public class Enemy : MonoBehaviour, IDamageable
     [SerializeField] private float _wallBounceMinXVelocity = 1f;
     [SerializeField] private float _wallBounceUpwardVelocity = 1.5f;
 
+    [Header("Separation")]
+    [SerializeField] private float _separationRadius = 0.6f;
+    [SerializeField] private float _separationStrength = 2f;
+    [SerializeField] private LayerMask _separationLayer;
+    private static readonly Collider2D[] _separationBuffer = new Collider2D[16];
+
     private int _currentHealth;
     private Rigidbody2D _rb;
     private Animator _anim;
@@ -58,7 +64,10 @@ private void Update()
         {
             _flashTimer -= Time.deltaTime;
             if (_flashTimer <= 0f && _spriteRenderer != null)
+            {
+                Debug.Log($"[Flash END] t={Time.time:F3} → revert to {_originalColor}");
                 _spriteRenderer.color = _originalColor;
+            }
         }
 
         if (_hitReactionTimer > 0f)
@@ -78,10 +87,60 @@ private void FixedUpdate()
             }
 
             ApplySmoothHitPositionCorrection();
+            ApplySeparation();
             _lastVelocity = _rb.linearVelocity;
         }
     }
 
+    private void ApplySeparation()
+    {
+        if (_separationRadius <= 0f || _separationStrength <= 0f) return;
+        if (_separationLayer.value == 0) return;
+
+        ContactFilter2D filter = new ContactFilter2D
+        {
+            useLayerMask = true,
+            layerMask = _separationLayer,
+            useTriggers = false
+        };
+
+        int count = Physics2D.OverlapCircle(_rb.position, _separationRadius, filter, _separationBuffer);
+        Vector2 push = Vector2.zero;
+        int contributors = 0;
+
+        for (int i = 0; i < count; i++)
+        {
+            Collider2D other = _separationBuffer[i];
+            if (other == null) continue;
+            if (other.attachedRigidbody == _rb) continue;
+
+            Vector2 away = _rb.position - (Vector2)other.transform.position;
+            float dist = away.magnitude;
+            if (dist >= _separationRadius) continue;
+
+            Vector2 dir;
+            if (dist < 0.001f)
+            {
+                // 완전히 같은 위치인 경우 무작위 수평 방향으로 분리
+                dir = UnityEngine.Random.value < 0.5f ? Vector2.left : Vector2.right;
+            }
+            else
+            {
+                dir = away / dist;
+            }
+
+            float strength = 1f - (dist / _separationRadius);
+            push += dir * strength;
+            contributors++;
+        }
+
+        if (contributors == 0) return;
+
+        push /= contributors;
+        // X축으로만 분리. Y는 중력에 맡겨서 바운스/공중부양 방지.
+        _rb.position += new Vector2(push.x, 0f) * (_separationStrength * Time.fixedDeltaTime);
+    }
+
     public void TakeDamage(int amount, Vector2 hitVelocity = default, string hitReactionAnimationState = null, Vector2? hitTargetPosition = null, bool correctHitTargetY = false, int hitPositionSolidMask = 0, float hitPositionCorrectionDuration = 0f)
     {
         if (_currentHealth <= 0) return;
@@ -93,6 +152,7 @@ public void TakeDamage(int amount, Vector2 hitVelocity = default, string hitReac
 
         if (_spriteRenderer != null)
         {
+            Debug.Log($"[Flash START] t={Time.time:F3} duration={_hitFlashDuration:F3} (current color was {_spriteRenderer.color})");
             _spriteRenderer.color = _hitFlashColor;
             _flashTimer = _hitFlashDuration;
         }