implement mementos snapshots

1 files changed, 4 insertions, 0 deletions

diff --git a/Canvas.h b/Canvas.h
index b602fb2..294b335 100644
--- a/Canvas.h
+++ b/Canvas.h
@@ -28,6 +28,10 @@ public:
 	void set_data(CanvasData data);
 
 public:
+	Memories save();
+	void restore(const Memories &);
+
+public:
 	TileColorFactory tile_color;
 	TileBehaviorFactory tile_behavior;