prepare for hexagon display & other models

- display cell as hexagon is Display.mHexagon if set ( not default )
will need a checkbox to set this
- various new models preparation...

java/org/artisanlogiciel/games/maze/gui/Display.java

@@ -50,6 +50,7 @@ implements StatusListener
 
     boolean statusEnable = true;
     boolean mGrow = false;
+    boolean mHexagon = false;
 
     JTextField statusField = null;
 
@@ -101,7 +102,8 @@ implements StatusListener
     }
 
     private MazeComponent createMazeComponent(LabyModel model, int W, int H) {
-        MazeCellParameters cp = new MazeCellParameters(model.getWidth(), model.getHeight(), W, H, 0, 0);
+
+        MazeCellParameters cp = mHexagon ? new HexagonCell(model.getWidth(), model.getHeight(), W, H, 0, 0) : new MazeCellParameters(model.getWidth(), model.getHeight(), W, H, 0, 0);
         MazeComponent comp = new MazeComponent(model, cp, this);
         Xpm xpm = new Xpm();
         try {