Add custom editor for Ragdoll to display the total mass

Source/Editor/CustomEditors/Dedicated/RagdollEditor.cs

@@ -0,0 +1,28 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+using FlaxEngine;
+
+namespace FlaxEditor.CustomEditors.Dedicated
+{
+    /// <summary>
+    /// Custom editor for <see cref="Ragdoll"/>.
+    /// </summary>
+    /// <seealso cref="ActorEditor" />
+    [CustomEditor(typeof(Ragdoll)), DefaultEditor]
+    public class RagdollEditor : ActorEditor
+    {
+        /// <inheritdoc />
+        public override void Initialize(LayoutElementsContainer layout)
+        {
+            base.Initialize(layout);
+
+            // Add info box
+            if (IsSingleObject && Values[0] is Ragdoll ragdoll)
+            {
+                var text = $"Total mass: {Utils.RoundTo1DecimalPlace(ragdoll.TotalMass)}kg";
+                var label = layout.Label(text);
+                label.Label.AutoHeight = true;
+            }
+        }
+    }
+}