타워 기능 추가 및 개선

Assets/Scripts/Tower/ExplosiveProjectile.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+
+public class ExplosiveProjectile : MonoBehaviour
+{
+    public float speed = 10f;
+    public float explosionRadius = 3f;
+    public float damage = 50f;
+    public GameObject explosionEffectPrefab;
+
+    // 유니티 인스펙터에서 "Enemy" 레이어를 선택할 수 있게 합니다.
+    public LayerMask enemyLayer;
+
+    private Vector3 _targetPosition;
+
+    public void SetTargetPosition(Vector3 position)
+    {
+        _targetPosition = position;
+    }
+
+    void Update()
+    {
+        transform.position = Vector3.MoveTowards(transform.position, _targetPosition, speed * Time.deltaTime);
+
+        if (Vector3.Distance(transform.position, _targetPosition) < 0.1f)
+        {
+            Explode();
+        }
+    }
+
+    void Explode()
+    {
+        if (explosionEffectPrefab != null)
+        {
+            Instantiate(explosionEffectPrefab, transform.position, transform.rotation);
+        }
+
+        // 핵심 수정: enemyLayer에 해당하는 오브젝트만 감지합니다.
+        Collider[] colliders = Physics.OverlapSphere(transform.position, explosionRadius, enemyLayer);
+
+        foreach (Collider hitCollider in colliders)
+        {
+            IDamageable damageable = hitCollider.GetComponentInParent<IDamageable>();
+            if (damageable != null)
+            {
+                damageable.TakeDamage(damage);
+                Debug.Log($"[폭발 적중] {hitCollider.name}에게 {damage} 데미지!");
+            }
+        }
+
+        Destroy(gameObject);
+    }
+
+    void OnDrawGizmosSelected()
+    {
+        Gizmos.color = Color.yellow;
+        Gizmos.DrawWireSphere(transform.position, explosionRadius);
+    }
+}