Update

Assets/Invector-3rdPersonController/Shooter/Scripts/Generic/vBarrel.cs

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+using UnityEngine;
+using System.Collections.Generic;
+
+namespace Invector
+{
+    public class vBarrel : vHealthController
+    {
+        public Transform referenceTransformUP;
+        public float maxAngleUp = 90;
+        protected bool isBarrelRoll;
+        public UnityEngine.Events.UnityEvent onBarrelRoll;
+        [vEditorToolbar("Health")]
+        public List<string> acceptableAttacks = new List<string>() { "explosion", "projectile" };
+
+        void OnCollisionEnter()
+        {
+            if (!referenceTransformUP) return;
+            var angle = Vector3.Angle(referenceTransformUP.up, Vector3.up);
+
+            if (angle > maxAngleUp && !isBarrelRoll)
+            {
+                isBarrelRoll = true;
+                onBarrelRoll.Invoke();
+            }
+        }
+
+        public override void TakeDamage(vDamage damage)
+        {
+            if (acceptableAttacks.Contains(damage.damageType))
+            {
+                base.TakeDamage(damage);
+            }
+        }
+    }
+}