如何使用javaswing在Java中达到我的第一个级别

Question

[我正在做一个学校项目，我发现用Java编写代码非常困难，我一直在尝试制作类似于Super Mario的2D平台游戏，我首先制作了主菜单，您使用其他JFrame（例如New Game，Controls等），但是一旦必须创建第一个关卡，我便开始发现障碍。我不知道该如何显示移动的角色，加载的背景，计时器，硬币，实际上是所有内容。我找不到适合初学者的任何教程，因为他们并没有真正详细解释如何使用Java swing创建2d平台游戏。

public class MainMenu2 {
    MainMenu2() throws IOException{
        JFrame Main_Menu = new JFrame("Main Menu");
        Main_Menu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int widthScreen = screenSize.width;
        int heightScreen = screenSize.height;

        BufferedImage backgroundImage = ImageIO.read(new File("P:\\My Pictures\\background1.jpg"));
        JLabel background = new JLabel(new ImageIcon(backgroundImage));
        Image scaleBackground = backgroundImage.getScaledInstance(widthScreen, heightScreen, Image.SCALE_SMOOTH);
        ImageIcon imageIcon = new ImageIcon(scaleBackground);
        Main_Menu.setContentPane(new JLabel(imageIcon));

        BufferedImage logoImage = ImageIO.read(new File("P:\\Computer Science\\Coursework\\CourseWorkGame\\logo.png"));
        JLabel logo = new JLabel(new ImageIcon(logoImage));
        logo.setBounds(((widthScreen/3)-75),((200/2)+145),700,150);
        Main_Menu.getContentPane().add(logo);


        Main_Menu.setSize(new Dimension(widthScreen, heightScreen)); 
        Main_Menu.setUndecorated(true);  //makes the bar at the top disappear
        Main_Menu.setLayout(null);
        Main_Menu.setLocationRelativeTo(null);
        Main_Menu.setVisible(true);
        Main_Menu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JButton new_game = new JButton("New Game");
        new_game.setBounds(((widthScreen/2)-75),((heightScreen/2)+90),150,50);
        new_game.addActionListener(new ActionListener() {
           @Override
           public void actionPerformed(ActionEvent e) {
               try {
                   NewGame buttonone = new NewGame(widthScreen,heightScreen);
               } catch (IOException ex) {
                   Logger.getLogger(MainMenu.class.getName()).log(Level.SEVERE, null, ex);
               }
               Main_Menu.setVisible(false);
           }
        });
        Main_Menu.add(new_game);

New GameFirstLevel

Loader-加载主菜单

public class MainMenu {

    public static void main(String[] args) throws IOException {
        MainMenu2 abc = new MainMenu2();
    }

Answer 1

主要思想是绘制并更改坐标，然后重画并删除第一个图形，它将产生位移效果，请检查此https://www.youtube.com/watch?v=vbI2NvIcrSY&t=229s