added more logic for the server state diagram

Projekte/mdga/model/src/main/java/pp.mdga/server/SelectPiece.java

@@ -1,7 +1,21 @@
 package pp.mdga.server;
 
+import pp.mdga.game.Piece;
+import pp.mdga.game.Player;
+import pp.mdga.message.server.StartPiece;
+
 public class SelectPiece extends ServerState {
     public SelectPiece(ServerState parent, ServerGameLogic logic) {
         super(parent, logic);
     }
+
+    @Override
+    public void receivedConfirmPiece(Piece p) {
+        if (verifyPiece(p)) {
+            logic.send(new Player(1), new Animation());
+            // todo: goto state
+        } else {
+            logic.send(new Player(1), new StartPiece());
+        }
+    }
 }