攻撃できるようになりました

Assets/Scripts/EnemyHealth.cs

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+using System;
+using UnityEngine;
+
+public class EnemyHealth : MonoBehaviour, IDamageble
+{
+    [SerializeField] private float maxHealth = 100f;
+    private float currentHealth;
+
+    [SerializeField] private float knockbackForce = 5f;
+    private Rigidbody rb;
+
+    void Start()
+    {
+        currentHealth = maxHealth; //HPを代入
+        rb = GetComponent<Rigidbody>();
+    }
+
+    public void TakeDamage(DamageInfo damageInfo)
+    {
+        if(currentHealth <= 0) return;
+
+        currentHealth -= damageInfo.amount; //ダメージ計算
+
+        if(damageInfo.isPoseBonus)
+        {
+            Debug.Log("構えボーナス");
+        }
+
+        if(rb != null) //ノックバック
+        {
+            rb.AddForce(damageInfo.punchDirection * knockbackForce, ForceMode.Impulse); //パンチが飛んできた方向に力を加える
+        }
+
+        if(currentHealth <= 0)
+        {
+            Die();
+        }
+    }
+
+    private void Die()
+    {
+        Destroy(gameObject, 0.5f);
+    }
+}

Assets/Scripts/EnemyHealth.cs.meta

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+fileFormatVersion: 2
+guid: 4b4f072c824585843b120965516325b6

Assets/Scripts/IDamageble.cs

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+using UnityEngine;
+
+public struct DamageInfo
+{
+    public float amount; //ダメージ量
+    public Vector3 hitPosition; //殴られた位置
+    public Vector3 punchDirection; //パンチが飛んできた方向（ノックバック用）
+    public bool isPoseBonus; //構えから攻撃かどうか
+}
+public interface IDamageble
+{
+    void TakeDamage(DamageInfo damageInfo);
+}

Assets/Scripts/IDamageble.cs.meta

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+fileFormatVersion: 2
+guid: 42a222f4862dd2c46846a6be4dfe956a

Assets/Scripts/VRPunchAttack.cs

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+using UnityEngine;
+using UnityEngine.InputSystem; // Input Systemを使うために必要
+using UnityEngine.XR;          // 振動機能のために必要
+
+[RequireComponent(typeof(Collider))]
+[RequireComponent(typeof(Rigidbody))]
+public class VRInputPunch : MonoBehaviour
+{
+    [SerializeField] private InputActionProperty velocityAction;
+
+    [SerializeField] private XRNode controllerNode = XRNode.RightHand;
+
+    [SerializeField] private float minPunchSpeed = 2.0f; //パンチとして判定する最低速度 (m/s)
+    
+    [SerializeField] private float damageMultiplier = 10.0f; //ダメージ倍率
+
+    [SerializeField] private float hapticAmplitude = 0.5f; //振動の強さ
+    [SerializeField] private float hapticDuration = 0.1f; //振動の長さ
+
+    private void OnEnable()
+    {
+        if (velocityAction.action != null)
+        {
+            velocityAction.action.Enable();
+        }
+    }
+
+    private void OnDisable()
+    {
+        if (velocityAction.action != null)
+        {
+            velocityAction.action.Disable();
+        }
+    }
+
+    void Start()
+    {
+        Rigidbody rb = GetComponent<Rigidbody>();
+        rb.isKinematic = true; 
+        rb.useGravity = false;
+        GetComponent<Collider>().isTrigger = true;
+    }
+
+    private void OnTriggerEnter(Collider other)
+    {
+        Vector3 velocity = velocityAction.action.ReadValue<Vector3>();
+        
+        float speed = velocity.magnitude;
+
+        Debug.Log($"[InputSystem接触] {other.name} に触れました。センサー速度: {speed:F2} m/s");
+
+        if (speed >= minPunchSpeed)
+        {
+            IDamageble damageble = other.GetComponentInParent<IDamageble>();
+
+            if (damageble != null)
+            {
+                DamageInfo info = new DamageInfo();
+                info.amount = speed * damageMultiplier;
+                info.hitPosition = other.transform.position;
+                info.punchDirection = velocity.normalized; //パンチの進む向き
+                info.isPoseBonus = false;
+                damageble.TakeDamage(info);
+                Debug.Log("パンチ成功 ダメージ: {damage:F1}");
+                
+                TriggerHaptics();
+            }
+            else
+            {
+                Debug.Log("スピードが足りません。必要: {minPunchSpeed} / 現在: {speed:F2}");
+            }
+        }
+    }
+
+    // コントローラーを振動させる処理
+    private void TriggerHaptics()
+    {
+        UnityEngine.XR.InputDevice device = InputDevices.GetDeviceAtXRNode(controllerNode);
+        if (device.isValid)
+        {
+            device.SendHapticImpulse(0, hapticAmplitude, hapticDuration);
+        }
+    }
+}

Assets/Scripts/VRPunchAttack.cs.meta

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+fileFormatVersion: 2
+guid: 432d44ce69f716a499b8e70a63583b9e