genCells no finished

src/GomokuCell.java

@@ -1,6 +1,8 @@
 import java.util.EnumMap;
 import java.util.concurrent.ExecutionException;
-
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
 /**
  * This class is cell of the board of the Gomoku game.
  */
@@ -56,8 +58,6 @@ public class GomokuCell{
      * @throws IllegalStateException If the cell is not playable.
      */
     public void setState(Color c){
-        if (!this.isPlayable())
-            throw new IllegalStateException("This cell is not playable !" + this.toString());
         this.state = c;
     }
     
@@ -104,12 +104,22 @@ public class GomokuCell{
         this.neighbour.put(car, cell);
     }
 
+    
+    //------------------Statics--------------------------
+
+    public static void link(GomokuCell c1, GomokuCell c2, Cardinal c1Toc2){
+        if (c1 == null || c2 == null) return ;
+        List<Cardinal> cardinals = Arrays.asList(Cardinal.values());
+        c1.linkCell(c1Toc2, c2);
+        c2.linkCell(cardinals.get((cardinals.indexOf(c1Toc2) + 4) % 8), c1);
+    }
+
     //------------------Overides--------------------------
     @Override
     public String toString() {
         switch (this.getSate()) {
             case Color.NIL:
-                return " ";
+                return ".";
             case Color.BLACK:
                 return "X";
             case Color.WHITE: