#3 Finished settings editor

Assets/PCG/Planet Procedural Generation/Editor/PlanetEditor.cs

@@ -0,0 +1,61 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+
+[CustomEditor(typeof(Planet))]
+public class PlanetEditor : Editor {
+
+    Planet planet;
+    Editor shapeEditor;
+    Editor colourEditor;
+
+	public override void OnInspectorGUI()
+	{
+        using (var check = new EditorGUI.ChangeCheckScope())
+        {
+            base.OnInspectorGUI();
+            if (check.changed)
+            {
+                planet.GeneratePlanet();
+            }
+        }
+
+        if (GUILayout.Button("Generate Planet"))
+        {
+            planet.GeneratePlanet();
+        }
+
+        DrawSettingsEditor(planet.shapeSettings, planet.OnShapeSettingsUpdated, ref planet.shapeSettingsFoldout, ref shapeEditor);
+        DrawSettingsEditor(planet.colourSettings, planet.OnColourSettingsUpdated, ref planet.colourSettingsFoldout, ref colourEditor);
+	}
+
+    void DrawSettingsEditor(Object settings, System.Action onSettingsUpdated, ref bool foldout, ref Editor editor)
+    {
+        if (settings != null)
+        {
+            foldout = EditorGUILayout.InspectorTitlebar(foldout, settings);
+            using (var check = new EditorGUI.ChangeCheckScope())
+            {
+                if (foldout)
+                {
+                    CreateCachedEditor(settings, null, ref editor);
+                    editor.OnInspectorGUI();
+
+                    if (check.changed)
+                    {
+                        if (onSettingsUpdated != null)
+                        {
+                            onSettingsUpdated();
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+	private void OnEnable()
+	{
+        planet = (Planet)target;
+	}
+}