app/src/main/java/school_project/Controller.java

@@ -4,25 +4,33 @@
 package school_project;
 
 import javafx.application.Application;
-import javafx.scene.Group;
+import javafx.scene.Parent;
 import javafx.scene.Scene;
-import javafx.scene.control.Button;
 import javafx.stage.Stage;
+import school_project.States.GameMain;
+import school_project.States.GameMenu;
+import school_project.States.GameState;
 
 public class Controller extends Application {
+    public final static String PROGRAM_NAME = "Road to Master";
+    private Parent root;
+    private GameState gameState = GameState.InMenu;
 
     @Override
     public void start(Stage primaryStage) throws Exception {
-        primaryStage.setTitle("test");
-        Button btn = new Button("test");
-        btn.setOnAction(event -> System.out.println("hey"));
+        primaryStage.setTitle(PROGRAM_NAME);
 
-        Group root = new Group();
-        root.getChildren().add(btn);
+        switch (gameState){
+            case InMenu:
+                root = new GameMenu();
+                break;
+            case InGame:
+                root = new GameMain();
+                break;
+        }
 
-        Scene scene = new Scene(root, 300,300);
+        Scene scene = new Scene(root);
         primaryStage.setScene(scene);
-
         primaryStage.show();
     }
 

app/src/main/java/school_project/States/GameMain.java

@@ -0,0 +1,8 @@
+package school_project.States;
+
+import javafx.scene.layout.BorderPane;
+
+public class GameMain extends BorderPane {
+
+
+}

app/src/main/java/school_project/States/GameMenu.java

@@ -0,0 +1,12 @@
+package school_project.States;
+
+import javafx.scene.layout.GridPane;
+import javafx.scene.text.Text;
+
+public class GameMenu extends GridPane {
+    Text txt = new Text("Here come the menu");
+    public GameMenu() {
+        super();
+        add(txt, 0, 0);
+    }
+}

app/src/main/java/school_project/States/GameState.java

@@ -0,0 +1,6 @@
+package school_project.States;
+
+public enum GameState {
+    InMenu,
+    InGame
+}