destroy explosion when particle systems finish

Assets/Prefabs/Explosion.prefab

@@ -23294,6 +23294,7 @@ GameObject:
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+  - component: {fileID: 7300375720519918962}
   m_Layer: 0
   m_Name: Explosion
   m_TagString: Untagged
@@ -23386,6 +23387,18 @@ Light:
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   m_ShadowRadius: 0
   m_ShadowAngle: 0
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Assets/Scripts/Utilities/DestroyWhenParticleSystemsFinish.cs

@@ -0,0 +1,30 @@
+using System.Collections;
+using System.Linq;
+using UnityEngine;
+
+namespace SanAndreasUnity.Utilities
+{
+
+    public class DestroyWhenParticleSystemsFinish : MonoBehaviour
+    {
+
+        IEnumerator Start()
+        {
+            var systems = this.GetComponentsInChildren<ParticleSystem>();
+
+            while (true)
+            {
+                yield return null;
+
+                if (systems.All(s => !s.isPlaying))
+                {
+                    Object.Destroy(this.gameObject);
+                    break;
+                }
+            }
+
+        }
+
+    }
+
+}

Assets/Scripts/Utilities/DestroyWhenParticleSystemsFinish.cs.meta

@@ -0,0 +1,11 @@
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Assets/UnityStandardAssets

@@ -1 +1 @@
-Subproject commit 4527e028ba14b7802e8ba4da2dbdc90792adfa63
+Subproject commit 2cfe2611ba93a0cd8f61e68f6989d8fa7f6357f0