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Assets/ThirdParty/DestroyIt/Scripts/Runtime/Behaviors/ChainDestructionTrigger.cs

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+using UnityEngine;
+// ReSharper disable ForCanBeConvertedToForeach
+// ReSharper disable IdentifierTypo
+// ReSharper disable LoopCanBeConvertedToQuery
+// ReSharper disable CommentTypo
+
+namespace DestroyIt
+{
+    /// <summary>
+    /// This script triggers a chain destruction sequence on one or more Destructible objects that also have the
+    /// ChainDestruction component. Put this script on a trigger collider and assign one or more Destructible
+    /// objects that have the ChainDestruction component to the ChainDestructions collection.
+    /// </summary>
+    [RequireComponent(typeof(Collider))]
+    public class ChainDestructionTrigger : MonoBehaviour
+    {
+        public ChainDestruction[] chainDestructions;
+
+        private void Start()
+        {
+            if (!HasTriggerCollider())
+                Debug.LogWarning("No trigger collider found on ChainDestructionTrigger gameObject. You need a trigger collider for this script to work properly.");
+        }
+
+        private void OnTriggerEnter(Collider other)
+        {
+            if (chainDestructions == null || chainDestructions.Length == 0) return;
+            
+            // For each ChainDestruction component to trigger, set its destroySelf flag to True.
+            for (int i = 0; i < chainDestructions.Length; i++)
+            {
+                if (chainDestructions[i] == null) continue;
+
+                chainDestructions[i].destroySelf = true;
+            }
+        }
+
+        /// <summary>Returns True if there is a trigger collider on this game object. Otherwise, returns False.</summary>
+        private bool HasTriggerCollider()
+        {
+            Collider[] colls = gameObject.GetComponents<Collider>();
+            if (colls == null) return false;
+            for (int i = 0; i < colls.Length; i++)
+            {
+                if (colls[i].isTrigger)
+                    return true;
+            }
+
+            return false;
+        }
+    }
+}