jackson databind import

- and some reowrk to use Position more than (x,y) parameters

java/org/artisanlogiciel/games/maze/Brick.java

@@ -19,6 +19,34 @@ bcd is within 'H' or ' '
 public class Brick
 {
 
+    // order matters index is same as bits order
+    public static final Position[] AllMoves = {
+            new Position(0,0).doReverseTranslate(Position.stepX),
+            new Position(Position.stepY),
+            new Position(Position.stepX),
+            new Position(0,0).doReverseTranslate(Position.stepY),
+            // last is no move
+            new Position(0,0)
+    };
+
+    // flag is in Brick settings
+    static int getDirectionIndex(short flag)
+    {
+        // short a = (short) (flag >> FLAGLENGTH);
+        for (int index = 0; index < AllMoves.length - 1; index ++) {
+            if (isFlagSet((short) (1 << index), flag)) {
+                return index;
+            }
+        }
+        // return last index which is no move.
+        return AllMoves.length - 1;
+    }
+
+    public static Position getDirectionMove(short direction) {
+        return AllMoves[getDirectionIndex(direction)];
+    }
+
+
     public final static short LEFT = 1;
     public final static short DOWN = 2;
     public final static short RIGHT = 4;