TicTacToeFX.java

package com.example.tictactoe_game;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Modality;
import javafx.stage.Stage;

public class TicTacToeFX extends Application {

    private final Button[][] buttons = new Button[3][3];

    private boolean isXTurn = true;

    private boolean isGameOver = false;

    @Override
    public void start(Stage primaryStage) {

        EventHandler<GameEvent> gameEventHandler = gameEvent -> {

            String currentPlayer = isXTurn ? "X" : "O";
            final Stage dialog = new Stage();
            dialog.initModality(Modality.APPLICATION_MODAL);
            dialog.initOwner(primaryStage);
            VBox dialogVbox = new VBox(20);

            if(gameEvent.getEventType() == GameEvent.VICTORY_EVENT) {
                dialogVbox.getChildren().add(new Text("This is a victory for player " + currentPlayer + "!"));
            }
            else if(gameEvent.getEventType() == GameEvent.DRAW_EVENT) {
                dialogVbox.getChildren().add(new Text("This is a Draw!"));
            }

            Scene dialogScene = new Scene(dialogVbox, 200, 100);
            dialog.setScene(dialogScene);
            dialog.show();
        };


        // Erstelle das das Spielfeld
        GridPane grid = new GridPane();

        // 3x3 Buttons hinzufügen
        for (int row = 0; row < 3; row++) {
            for (int col = 0; col < 3; col++) {
                Button button = new Button();
                button.setPrefSize(100, 100); // Größe der Buttons
                grid.add(button, col, row); // Hinzufügen zum Grid
                buttons[row][col] = button;
                button.setOnAction(event -> handleButtonClick(button));
            }
        }
        grid.addEventHandler(GameEvent.VICTORY_EVENT, gameEventHandler);
        grid.addEventHandler(GameEvent.DRAW_EVENT, gameEventHandler);

        // Szene und Stage erstellen
        Scene scene1 = new Scene(grid, 300, 300); // Größe der Szene
        primaryStage.setTitle("Tic-Tac-Toe");
        primaryStage.setScene(scene1);
        primaryStage.show();
    }

    private void handleButtonClick(Button button) {
        if(button.getText().isEmpty() && !this.isGameOver) {
            if (this.isXTurn) {
                button.setText("X");
            } else {
                button.setText("O");
            }
            if (checkForWin()) {
                this.isGameOver = true;
                button.fireEvent(new GameEvent(GameEvent.VICTORY_EVENT));
            }
            else if(checkForDraw()){
                this.isGameOver = true;
                button.fireEvent(new GameEvent(GameEvent.DRAW_EVENT));
            }

            this.isXTurn = !this.isXTurn;
        }
    }

    private boolean checkForWin(){
        for(int row = 0; row < 3; row++){
            String text1 = buttons[row][0].getText();
            String text2 = buttons[row][1].getText();
            String text3 = buttons[row][2].getText();
            if(!text1.isEmpty() && text1.equals(text2) && text1.equals(text3)){
                return true;
            }
        }

        for(int col = 0; col < 3; col++){
            String text1 = buttons[0][col].getText();
            String text2 = buttons[1][col].getText();
            String text3 = buttons[2][col].getText();
            if(!text1.isEmpty() && text1.equals(text2) && text1.equals(text3)){
                return true;
            }
        }

        String upperLeftCorner = buttons[0][0].getText();
        String center = buttons[1][1].getText();
        String lowerRightCorner = buttons[2][2].getText();
        String upperRightCorner = buttons[0][2].getText();
        String lowerLeftCorner = buttons[2][0].getText();

        if(!upperLeftCorner.isEmpty() && upperLeftCorner.equals(center) && upperLeftCorner.equals(lowerRightCorner)){
            return true;
        }

        if(!upperRightCorner.isEmpty() && upperRightCorner.equals(center) && upperRightCorner.equals(lowerLeftCorner)){
            return true;
        }

        return false;
    }

    private boolean checkForDraw(){
        for(int row = 0; row < 3; row++){
            for(int col = 0; col < 3; col++){
                if(buttons[row][col].getText().isEmpty()){
                    return false;
                }
            }
        }
        return true;
    }

    public static void main(String[] args) {
        launch(args);
    }
}