implement basic start screen without styling

src/main/java/edu/ntnu/idi/idatt2003/gruppe42/Millions.java

@@ -1,15 +1,17 @@
 package edu.ntnu.idi.idatt2003.gruppe42;
 
+import edu.ntnu.idi.idatt2003.gruppe42.View.StartScreen;
 import javafx.application.Application;
 import javafx.scene.Scene;
-import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.StackPane;
 import javafx.stage.Stage;
 
 public class Millions extends Application {
 
   @Override
   public void start(Stage stage) throws Exception {
-    BorderPane root = new BorderPane();
+    StartScreen startScreen = new StartScreen();
+    StackPane root = startScreen.getRoot();
     Scene scene = new Scene(root, 900, 700);
 
     stage.setTitle("Millions");

src/main/java/edu/ntnu/idi/idatt2003/gruppe42/View/StartScreen.java

@@ -0,0 +1,48 @@
+package edu.ntnu.idi.idatt2003.gruppe42.View;
+
+import javafx.geometry.Pos;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+
+import java.util.Objects;
+
+public class StartScreen {
+
+  public StackPane getRoot() {
+    // Root
+    StackPane root = new StackPane();
+
+    // Main content
+    VBox content = new VBox();
+    content.setAlignment(Pos.CENTER);
+
+    // Logo
+    Image logoImage = new Image(Objects.requireNonNull(getClass().getResourceAsStream("/images/logo.jpg")));
+    ImageView logoView = new ImageView(logoImage);
+    logoView.setPreserveRatio(true);
+    logoView.setFitWidth(250);
+
+    // User input content
+    VBox inputContent = new VBox();
+    inputContent.setAlignment(Pos.CENTER);
+    inputContent.setMaxWidth(400);
+
+    Label usernameLabel = new Label("State your name, G");
+    TextField usernameField = new TextField();
+    Label startingMoneyLabel = new Label("How much matrix money?");
+    TextField startingMoneyField = new TextField();
+    Button loginButton = new Button("Login");
+
+    // Set children
+    inputContent.getChildren().addAll(usernameLabel, usernameField, startingMoneyLabel, startingMoneyField);
+    content.getChildren().addAll(logoView, inputContent, loginButton);
+    root.getChildren().add(content);
+
+    return root;
+  }
+}