Rename year directories to allow natural ordering

year2/semester2/CT255/Assignments/Assigment-06/GameOfLife.java

@@ -0,0 +1,88 @@
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import java.awt.image.*;
+import java.util.*;
+
+public class GameOfLife extends JFrame implements Runnable, MouseListener {
+    private static final Dimension WindowSize = new Dimension(800, 800); 
+    private BufferStrategy strategy;
+    private static boolean isGraphicsInitialised = false; 
+    private boolean gameState[][] = new boolean[40][40];
+
+    public GameOfLife() {
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
+
+        // display the window. centred on the screen
+        Dimension screensize = java.awt.Toolkit.getDefaultToolkit().getScreenSize(); 
+        int x = screensize.width/2  - WindowSize.width/2; int y = screensize.height/2 - WindowSize.height/2;
+        setBounds(x, y, WindowSize.width, WindowSize.height);
+        setVisible(true);
+
+        createBufferStrategy(2); 
+        strategy = getBufferStrategy(); 
+
+        // create a new thread & start it 
+        Thread t = new Thread(this);
+        t.start();
+
+        // adding mouse listener 
+        addMouseListener(this);
+
+        isGraphicsInitialised = true;
+    }
+
+    // entry point of the application
+    public static void main(String[] args) {
+        GameOfLife game = new GameOfLife();
+    }
+
+    public void run() {
+        while (true) {
+            // repainting 
+            try {
+                this.repaint();
+                Thread.sleep(20); 
+            } catch (InterruptedException e) {
+                e.printStackTrace(); 
+            } 
+        }
+    }
+
+    // application's paint method
+    public void paint(Graphics g) {
+        // making sure that the graphics are initialised before painting
+        if (isGraphicsInitialised) {
+            g = strategy.getDrawGraphics(); 
+            
+            // draw a white rectangle on the whole canvas 
+            g.setColor(Color.WHITE); 
+            g.fillRect(0, 0, 800, 800);
+
+            // looping through the gameState array
+            for (int i = 0; i < 40; i++) {
+                for (int j = 0; j < 40; j++) {
+
+                    // drawing a black square if true
+                    if (gameState[i][j]) {
+                        g.setColor(Color.BLACK); 
+                        g.fillRect(i * 20, j * 20, 20, 20);
+                    }
+                }
+            }
+
+            strategy.show();
+        }
+    }
+
+    public void mousePressed(MouseEvent e) { }
+    public void mouseReleased(MouseEvent e) { }
+    public void mouseEntered(MouseEvent e) { }
+    public void mouseExited(MouseEvent e) { }
+
+    // mouse click event
+    public void mouseClicked(MouseEvent e) {
+        // setting boolean corresponding to the square that was clicked to true
+        gameState[(int) Math.floor(e.getX() / 20)][(int) Math.floor(e.getY() / 20)] = true;
+    }
+}