From bc63ff3ea8266e7332ebc4b4a8d76206d7447b5f Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Fri, 16 Nov 2012 12:35:49 +0100
Subject: [PATCH] Use Canvas and CanvasGroup ghosts provided by fgfs core

---
 Nasal/canvas/api.nas | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Nasal/canvas/api.nas b/Nasal/canvas/api.nas
index 2a15fa804..3f6d79b6b 100644
--- a/Nasal/canvas/api.nas
+++ b/Nasal/canvas/api.nas
@@ -736,7 +736,17 @@ var Canvas = {
   # @param id Optional id/name for the group
   createGroup: func(id = nil)
   {
-    return Group.new([me.texture, "group"], id);
+    if( size(me.parents) >= 2 )
+    {
+      var ghost = me.parents[1].createGroup();
+      return {
+        parents: [ Group.new(props.wrapNode(ghost._node_ghost), id),
+                   ghost ]
+      };
+    }
+    else
+      # Fallback for Canvas instances not based on a ghost
+      return Group.new([me.texture, "group"], id);
   },
   # Set the background color
   #