Init

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

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+using UnityEngine;
+
+namespace DestroyIt
+{
+    /// <summary>
+    /// This script is used to add a Rigidbody component to a gameobject through code. It allows you to start with an object that has no Rigidbody
+    /// and add one at a later time by calling Initialize() on this script. The script deletes itself after adding the Rigidbody.
+    /// </summary>
+    public class DelayedRigidbody : MonoBehaviour
+    {
+        public float mass = 1f;
+        public float drag = 0f;
+        public float angularDrag = 0.05f;
+        public float delaySeconds = 0f;
+        public bool reenableColliders = true;
+
+        /// <summary>This is called whenever you want to add a rigidbody to the game object.</summary>
+        public void Initialize()
+        {
+            Invoke("AddRigidbody", delaySeconds);
+        }
+
+        public void AddRigidbody()
+        {
+            // Add a rigidbody component if it doesn't already exist.
+            if (gameObject.GetComponent<Rigidbody>() == null)
+            {
+                Rigidbody rbody = gameObject.AddComponent<Rigidbody>();
+                rbody.mass = mass;
+                rbody.drag = drag;
+                rbody.angularDrag = angularDrag;
+            }
+
+            if (reenableColliders)
+            {
+                Collider[] colliders = gameObject.GetComponentsInChildren<Collider>();
+                foreach(Collider coll in colliders)
+                    coll.enabled = true;
+            }
+
+            // Deletes this script when finished.
+            Destroy(this);
+        }
+    }
+}