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--- 2048_gui [2025/07/15 10:31] – frchris
+++ 2048_gui [2025/07/15 10:46] (current) – [Using Eclipse] frchris
@@ Line 19: / Line 19: @@
 Modify the ''paintComponent'' method to change the fonts, colors, size, and appearance of the game.
+<code GUI2048.java>
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+/**
+ *  A GUI runner for your solution to the 2025 Lab
+ *  Unit 4: 2048
+ *
+ *  @author Chris Thiel, OFMCap
+ *  @version July 15, 2025
+ *
+ *  Make sure to write a getScore() method in your Game2048 class
+ *  as well as a getGameBoard() method.  Alternatively,
+ *  you can write your own draw(Graphics g) method, and call it
+ *  from this class's paintComponent method.
+ */
+public class GUI2048 extends JPanel implements KeyListener
+{
+	private static int WIDTH = 800, HEIGHT = 800;
+	private static int LEFT_ARROW = 37, UP_ARROW = 38,
+			           RIGHT_ARROW = 39, DOWN_ARROW = 40;
+	private Font titleFont, regularFont;
+	private int keyCode, boardSize;
+	private int[][] board;
+	private char c;
+	String message;
+	private Game2048 myGame;
+	public GUI2048()
+	{
+		myGame = new Game2048();
+		board = myGame.getBoard();
+		boardSize = board.length;
+		message = "Use arrow keys (or l, r, u, d for left, right, up, down)";
+		titleFont = new Font("Roman", Font.BOLD, 18);
+		regularFont = new Font("Helvetica", Font.PLAIN, 12);
+		keyCode=0;
+		c='-';
+	}
+	public static void main(String[] args) {
+		GUI2048 app= new GUI2048();
+		JFrame window = new JFrame("2048 Game");
+		window.setSize(WIDTH, HEIGHT);
+		window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		window.getContentPane().add(app);
+		window.addKeyListener(app);
+		window.setVisible(true);
+	}
+	public void paintComponent(Graphics g){
+		super.paintComponent(g);
+		g.setColor(Color.WHITE);
+		g.fillRect(0, 0, getWidth(),getHeight());
+		g.setColor(Color.BLUE);
+		g.setFont(new Font("Arial", Font.PLAIN, 48));
+		g.drawString("2048 Game", WIDTH/3, 40);
+		g.setFont(titleFont);
+		g.setColor(Color.BLACK);
+		g.drawString("Score: " + myGame.getScore(), 4*WIDTH/5, 40);
+		g.drawString( message , 20, WIDTH - 50);
+		g.setFont(regularFont);
+		g.drawString("Version 1.0", 20, 50);
+		g.setFont(new Font("Arial", Font.PLAIN, 48));
+		g.setColor(Color.red);
+		drawBoard(g);
+	}
+	public void drawBoard(Graphics g) {
+		int size = HEIGHT/(boardSize +1);
+		int top = 60;
+		int left = WIDTH/2 - 2 * size;
+		g.setFont(new Font("Arial", Font.BOLD, 48));
+		for(int r = 0; r < boardSize; r++)
+			for(int c = 0; c < boardSize; c++)
+			{
+				if (board[r][c] != 0)
+					g.drawString (""+board[r][c], left+c*size + size/3,
+							                      top + r*size + 3*size/4);
+			}
+		g.setColor(Color.BLACK);
+		for(int r = 0; r <= boardSize; r++) {
+			g.drawLine(left, top + size*r, left + boardSize*size, top +size*r);
+		}
+		for(int c = 0; c <= boardSize; c++){
+			g.drawLine(left+c*size, top ,left+c*size, top + boardSize* size);
+		}
+	}
+	// These 3 methods need to be declared to implement the KeyListener Interface
+	@Override
+	public void keyTyped(KeyEvent e) {}
+	@Override
+	public void keyPressed(KeyEvent e)
+	{
+		keyCode=e.getKeyCode();
+		c=e.getKeyChar();
+		if (keyCode == LEFT_ARROW || c == 'l')
+		{
+			myGame.moveLeft();
+			myGame.mergeLeft();
+			myGame.moveLeft();
+			message = "left";
+		}
+		else if (keyCode == RIGHT_ARROW || c == 'r')
+		{
+			myGame.moveRight();
+			myGame.mergeRight();
+			myGame.moveRight();
+			message = "right";
+		}
+		else if (keyCode == UP_ARROW || c == 'u')
+		{
+			myGame.moveUp();
+			myGame.mergeUp();
+			myGame.moveUp();
+			message = "up";
+		}
+		else if (keyCode == DOWN_ARROW || c == 'd' )
+		{
+			myGame.moveDown();
+			myGame.mergeDown();
+			myGame.moveDown();
+			message = "down";
+		}
+		else
+		{
+			message = c+ " is an invalid choice!";
+		}
+		if (message.length() < 6 && !myGame.gameOver())
+			myGame.add2ToBoard();
+		if (myGame.gameOver())
+			message = "Game Over - You reached "+ myGame.max();
+		repaint();
+	}
+	@Override
+	public void keyReleased(KeyEvent e) {}
+}
+</code>
 ===== Making an executable jar file =====
@@ Line 25: / Line 180: @@
+==== Using Eclipse ====
+  - From the ''File'' menu, select Export
+  - In the ''Java'' folder, select Runnable JAR file
+  - Press the ''Next'' Button
+  - Under the ''Launch Configuration'' your project that runs the GUI2048's ''main'' method
+  - Under ''Library handling'' select ''Extract required libraries into JAR''
+  - Select the ''Export destination'' (so you file the java executable later!)
+  - Press ''Finish'' button (even if you're American)