minas please help no serialization

Projekte/mdga/model/src/main/java/pp/mdga/game/PieceState.java

@@ -19,5 +19,9 @@ public enum PieceState {
     /**
      * The piece is finished.
      */
-    HOMEFINISHED
+    HOMEFINISHED;
+
+    public PieceState next() {
+        return values()[(ordinal() + 1) % values().length];
+    }
 }

Projekte/mdga/model/src/main/java/pp/mdga/game/ShieldState.java

@@ -15,5 +15,10 @@ public enum ShieldState {
     /**
      * The shield is suppressed, when the piece is on a start node.
      */
-    SUPPRESSED
+    SUPPRESSED;
+
+
+    public ShieldState next() {
+        return values()[(ordinal() + 1) % values().length];
+    }
 }