타워 기능 추가 및 개선

Assets/Scripts/Tower/AreaTowerAttack.cs

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+using UnityEngine;
+using System.Collections.Generic;
+
+public class AreaTowerAttack : MonoBehaviour
+{
+    [Header("Tower Settings")]
+    public float range = 15f;          // 넓은 사거리
+    public float fireRate = 0.5f;      // 발사 속도가 느림 (큰 데미지)
+    public GameObject explosiveProjectilePrefab; // 새로운 폭발 투사체 프리팹
+    public Transform firePoint;        // 투사체가 발사될 위치
+
+    private float _fireCountdown = 0f;
+    private Transform _target;
+
+    void Update()
+    {
+        UpdateTarget(); // 가장 가까운 적 찾기
+
+        if (_target == null) return;
+
+        // 발사 간격 관리
+        if (_fireCountdown <= 0f)
+        {
+            AreaShoot();
+            _fireCountdown = 1f / fireRate;
+        }
+
+        _fireCountdown -= Time.deltaTime;
+    }
+
+    void UpdateTarget()
+    {
+        GameObject[] enemies = GameObject.FindGameObjectsWithTag("Enemy");
+        float shortestDistance = Mathf.Infinity;
+        GameObject nearestEnemy = null;
+
+        foreach (GameObject enemy in enemies)
+        {
+            float distanceToEnemy = Vector3.Distance(transform.position, enemy.transform.position);
+            if (distanceToEnemy < shortestDistance)
+            {
+                shortestDistance = distanceToEnemy;
+                nearestEnemy = enemy;
+            }
+        }
+
+        if (nearestEnemy != null && shortestDistance <= range)
+        {
+            _target = nearestEnemy.transform;
+        }
+        else
+        {
+            _target = null;
+        }
+    }
+
+    void AreaShoot()
+    {
+        // 타겟의 현재 위치를 폭발 투사체의 목표 지점으로 설정
+        GameObject projectileGo = Instantiate(explosiveProjectilePrefab, firePoint.position, firePoint.rotation);
+        ExplosiveProjectile explosiveProjectile = projectileGo.GetComponent<ExplosiveProjectile>();
+
+        if (explosiveProjectile != null)
+        {
+            // 투사체에게 '목표 지점'을 전달 (추적 아님!)
+            explosiveProjectile.SetTargetPosition(_target.position);
+        }
+    }
+
+    void OnDrawGizmosSelected()
+    {
+        Gizmos.color = Color.red;
+        Gizmos.DrawWireSphere(transform.position, range);
+    }
+}