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Packages/com.arongranberg.aline/MonoBehaviourGizmos.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Drawing {
+	/// <summary>
+	/// Inherit from this class to draw gizmos.
+	/// See: getstarted (view in online documentation for working links)
+	/// </summary>
+	public abstract class MonoBehaviourGizmos : MonoBehaviour, IDrawGizmos {
+		public MonoBehaviourGizmos() {
+#if UNITY_EDITOR
+			DrawingManager.Register(this);
+#endif
+		}
+
+		/// <summary>
+		/// An empty OnDrawGizmosSelected method.
+		/// Why an empty OnDrawGizmosSelected method?
+		/// This is because only objects with an OnDrawGizmos/OnDrawGizmosSelected method will show up in Unity's menu for enabling/disabling
+		/// the gizmos per object type (upper right corner of the scene view). So we need it here even though we don't use normal gizmos.
+		///
+		/// By using OnDrawGizmosSelected instead of OnDrawGizmos we minimize the overhead of Unity calling this empty method.
+		/// </summary>
+		void OnDrawGizmosSelected () {
+		}
+
+		/// <summary>
+		/// Draw gizmos for this object.
+		///
+		/// The gizmos will be visible in the scene view, and the game view, if gizmos have been enabled.
+		///
+		/// This method will only be called in the Unity Editor.
+		///
+		/// See: <see cref="Draw"/>
+		/// </summary>
+		public virtual void DrawGizmos () {
+		}
+	}
+}