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Src/Unity/Scripts/Quadtree/Items/RendererItem.cs

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+using UnityEngine;
+
+namespace Quadtree.Items
+{
+    /// <summary>
+    /// Boundaries of this quadtree item are determined by present <c>UnityEngine.Renderer</c> component.
+    /// </summary>
+    [ExecuteInEditMode]
+    [DisallowMultipleComponent]
+    [RequireComponent(typeof(Renderer))]
+    [AddComponentMenu("Spatial partitioning/Quadtree/Items/Renderer-based Item")]
+    public class RendererItem : GameObjectItem
+    {
+        /// <summary>
+        /// Determines whether the item should be automatically inserted into the tree upon its initialization.
+        /// </summary>
+        /// 
+        /// <seealso cref="QuadtreeMonoRoot{TItem}.Insert(TItem)"/>
+        [SerializeField]
+        protected bool InsertOnInitialization = true;
+
+        private Renderer _renderer;
+
+        //==========================================================================dd==
+        //  Quadtree ITEM METHODS
+        //==========================================================================dd==
+
+        /// <summary>
+        /// Finds and locally stores this <c>GameObject</c>'s <c>Renderer</c> component instance.
+        /// </summary>
+        protected override void Init()
+        {
+            // load game object renderer component
+            _renderer = GetComponent<Renderer>();
+
+            base.Init();
+        }
+
+        public override Bounds GetBounds()
+        {
+            return _renderer.bounds;
+        }
+
+        public override GameObject GetGameObject() => gameObject;
+    }
+}