BaseEnemyをShooterとDasherに継承・弾発射敵をダメージ処理抜きで実装

Assets/Characters/Bullet/Prefabs/EnemyBullet.prefab

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Assets/Characters/Bullet/Scripts/BulletController.cs

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+using UnityEngine;
+
+public class BulletController : MonoBehaviour
+{
+    [SerializeField] float speed = 8f;
+    [SerializeField] float ignoreTime = 0.1f; // 発射直後の自己ヒット防止
+
+    private Rigidbody2D rb;
+    private float spawnTime;
+
+    void Start()
+    {
+        rb = GetComponent<Rigidbody2D>();
+        spawnTime = Time.time;
+        if (rb != null)
+        {
+            rb.gravityScale = 0f;
+        }
+    }
+
+    /// <summary>
+    /// 発射方向を設定して速度を適用する。ShooterEnemyController から呼ぶ。
+    /// </summary>
+    public void Fire(Vector2 direction)
+    {
+        if (rb != null)
+        {
+            rb.velocity = direction.normalized * speed;
+        }
+        else
+        {
+            var rbAdd = GetComponent<Rigidbody2D>();
+            if (rbAdd != null)
+                rbAdd.velocity = direction.normalized * speed;
+        }
+    }
+
+    void OnTriggerEnter2D(Collider2D other)
+    {
+        if (Time.time - spawnTime < ignoreTime) return;
+
+        if (other.CompareTag("Player"))
+        {
+            // ダメージ処理は別 issue で実装予定のため、ここでは Destroy のみ
+            Destroy(gameObject);
+        }
+    }
+
+    void OnCollisionEnter2D(Collision2D collision)
+    {
+        if (Time.time - spawnTime < ignoreTime) return;
+        Destroy(gameObject);
+    }
+}