Node window automatically fits content

Assets/Fungus/Editor/FungusEditorWindow.cs

@@ -92,7 +92,7 @@ public class FungusEditorWindow : EditorWindow
 		for (int i = 0; i < sequences.Length; ++i)
 		{
 			Sequence sequence = sequences[i];
-			sequence.nodeRect = GUI.Window(i, sequence.nodeRect, DrawWindow, sequence.name);
+			sequence.nodeRect = GUILayout.Window(i, sequence.nodeRect, DrawWindow, sequence.name, GUILayout.Width(100), GUILayout.Height(100), GUILayout.ExpandWidth(true), GUILayout.ExpandHeight(true));
 			windowSequenceMap.Add(sequence);
 		}
 
@@ -209,6 +209,12 @@ public class FungusEditorWindow : EditorWindow
 			EditorUtility.SetDirty( command );
 		}
 
+		// Add an invisible element if there are no commands to avoid window width/height collapsing
+		if (commands.Length == 0)
+		{
+			GUILayout.Space(10);
+		}
+
         GUI.DragWindow();
     }