GameWindow.java

import javax.swing.*;
import java.awt.event.*;
import java.util.HashSet;
import java.awt.*;


public class GameWindow extends JFrame implements ActionListener, KeyListener, MouseListener{

    //
    private int level;
    //public HashSet<Integer> directions;
    public boolean[] directions = {false, false, false, false};

    // labels
    private JLabel inventory, questItems, health, status, gamelevel;
    
    // // text fields
    // private JTextField statusTF, keyTF, mouseTF;
    
    // text areas
    private JTextArea inventoryText, questItemsText, levelText;

    // scroll panes
    private JScrollPane inventoryScroll, questItemsScroll, healthScroll, statusScroll, levelScroll;

    // buttons
    private JButton start, quit, pause, restart;
    
    // panels
    private JPanel inventoryPanel, questItemsPanel, healthPanel, main, controls;
    private GamePanel2 gamePanel;
    private GamePanel gp;

    private CardLayout cardLayout;
    private JPanel cardPanel;
    
    //private Keylisteners keylisteners;
    private Container c;

    @SuppressWarnings("unchecked")
    public GameWindow(){
        setTitle("Nomad");
        setSize(1200, 800);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocation(200, 0);

        //directions = new HashSet<>();
        level = 1;
        // User Interface Components
        inventory = new JLabel("Inventory");
        questItems = new JLabel("Quest Items");
        health = new JLabel("Health");
        status = new JLabel("Status");
        gamelevel = new JLabel("Game-Level");

        // Panel Fields
        inventoryPanel = new JPanel();
        inventoryPanel.setLayout(new BoxLayout(inventoryPanel, BoxLayout.Y_AXIS));
        inventoryPanel.add(inventory);
        //inventoryPanel.add(inventoryScroll);


        questItemsPanel = new JPanel();
        questItemsPanel.setLayout(new BoxLayout(questItemsPanel, BoxLayout.Y_AXIS));
        questItemsPanel.add(questItems);
        //questItemsPanel.add(questItemsScroll);


        healthPanel = new JPanel();
        healthPanel.setLayout(new BoxLayout(healthPanel, BoxLayout.Y_AXIS));
        healthPanel.add(health);

        
        controls = new JPanel();
        controls.setBackground(Color.ORANGE);
        main = new JPanel();
        main.setBackground(Color.RED);

        // Text Fields
        inventoryText = new JTextArea(10, 20);
        questItemsText = new JTextArea(10, 20);
        levelText = new JTextArea(10, 20);

        inventoryText.setEditable(false);
		questItemsText.setEditable(false);
		levelText.setEditable(false);

        // buttons
        start = new JButton("Start Game");
        quit = new JButton("Quit");
        pause = new JButton("Pause");
        restart = new JButton("Restart");

        start.addActionListener(this);
        quit.addActionListener(this);
        pause.addActionListener(this);
        restart.addActionListener(this);
        controls.add(start);
        controls.add(quit);
        controls.add(pause);
        controls.add(restart);

        // Scroll Panes
        inventoryScroll = new JScrollPane(inventoryText);
        questItemsScroll = new JScrollPane(questItemsText);
        levelScroll = new JScrollPane(levelText);

        // Initialize CardLayout and JPanel to hold different panels
        cardLayout = new CardLayout();
        cardPanel = new JPanel(cardLayout);

        // Game Panel
        gp = new GamePanel(this);
        gp.setPreferredSize(new Dimension(1000, 700));
        gamePanel = new GamePanel2();
        gamePanel.setPreferredSize(new Dimension(1000, 700));

        // Add GamePanel instances to cardPanel
        cardPanel.add(gp, "gamePanel");
        cardPanel.add(gamePanel, "gamePanel2");


        
        //Main Panel
        main.add(cardPanel);
        // Show the first panel (GamePanel) initially
        cardLayout.show(cardPanel, "gamePanel");

        //main.add(gamePanel);
        main.add(controls);

        // msn must respond to keyboard and mouse
        gamePanel.addMouseListener(this);
		main.addKeyListener(this);


        // Container
        c = getContentPane();
        c.setLayout(new BorderLayout());
        c.add(main, BorderLayout.CENTER);
        //c.add(controls, BorderLayout.SOUTH);
        setVisible(true);
        setResizable(false);

    }

    public void actionPerformed(ActionEvent e){
        
        if(e.getSource() == start){
            gp.gameSetup();
            gp.gameState = gp.getPlayState();
            gp.startGameThread();
            // gamePanel.startGame();
        }
        if(e.getSource() == quit){
            System.exit(0);
        }
        if(e.getSource() == pause){
        
            if (level == 2) {
                gamePanel.pauseGame();   
            }
            
        }
        if(e.getSource() == restart){

            if (level == 2) {
                gamePanel.startNewGame();
            }
            
        }

        main.requestFocus();
    }
    // implement methods in KeyListener interface

	public void keyPressed(KeyEvent e) {

        int keyCode = e.getKeyCode();

		if (keyCode == KeyEvent.VK_LEFT) {
            directions[1] = true;
			gamePanel.setDirections(directions);
		}
		//else
		if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            directions[2] = true;
			gamePanel.setDirections(directions);
		}
        //else
		if (e.getKeyCode() == KeyEvent.VK_UP) {
            directions[3] = true;
			gamePanel.setDirections(directions);
		}

        if (e.getKeyCode() == KeyEvent.VK_SPACE) {
            directions[0] = true;
			gamePanel.setDirections(directions);
		}
		
	}

	public void keyReleased(KeyEvent e) {

        int keyCode = e.getKeyCode();

		if (keyCode == KeyEvent.VK_LEFT) {
            directions[1] = false;
			gamePanel.setDirections(directions);
		}
		//else
		if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            directions[2] = false;
			gamePanel.setDirections(directions);
		}
        //else
		if (e.getKeyCode() == KeyEvent.VK_UP) {
            directions[3] = false;
			gamePanel.setDirections(directions);
		}
        //else
        if (e.getKeyCode() == KeyEvent.VK_SPACE) {
            directions[0] = false;
			gamePanel.setDirections(directions);
		}

	}

	public void keyTyped(KeyEvent e) {

	}


	// implement methods in MouseListener interface

	public void mouseClicked(MouseEvent e) {
		int x = e.getX();
		int y = e.getY();
	}


	public void mouseEntered(MouseEvent e) {
	
	}

	public void mouseExited(MouseEvent e) {
	
	}

	public void mousePressed(MouseEvent e) {
	
	}

	public void mouseReleased(MouseEvent e) {
	
	}

   
    public void startLevel2(){
        gp.endGameThread();
        gamePanel.startGame();
        cardLayout.show(cardPanel, "gamePanel2");
        main.requestFocus();
        level = 2;
        return;
    }
    
}