Differences

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--- resources_for_tetris [2022/05/09 11:17] – created frchris
+++ resources_for_tetris [2022/05/09 11:49] – frchris
@@ Line 2: / Line 2: @@
 The basic falling item, with a Key Listener:
+<code>
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.Timer;
+public class Tetris extends JPanel implements KeyListener, ActionListener
+{
+	public static int WIDTH=800;
+	public static int HEIGHT=600;
+	private Font titleFont, regularFont;
+	private int x,y;
+	private Timer timer1, timer2;
+	public Tetris()
+	{
+		//initialize variables here...
+		titleFont = new Font("Roman", Font.BOLD, 18);
+		regularFont = new Font("Helvetica", Font.PLAIN, 12);
+		y=0;
+		x=200;
+		timer1 = new Timer(50, this); //1000=1 seconds
+		timer2 = new Timer(2000, this); //1000=1 seconds
+		timer1.start();
+	}
+	public static void main(String[] args) {
+		Tetris app= new Tetris();
+		JFrame window = new JFrame("Timer Example");
+		window.setSize(WIDTH, HEIGHT);
+		window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		window.getContentPane().add(app);
+		window.addKeyListener(app);
+		//window.pack();
+		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(titleFont);
+		g.drawString("Tetris Example", 20, 20);
+		g.setColor(Color.BLACK);
+		g.setFont(regularFont);
+		g.drawString("y = "+y, 20, 40);
+		g.fillRect(x, y, 10, 10);
+	}
+	// These 3 methods need to be declares to implement the KeyListener Interface
+	@Override
+	public void keyTyped(KeyEvent e) {}
+	@Override
+	public void keyPressed(KeyEvent e) {
+		int code=e.getKeyCode();
+	      if (code ==39) // right
+	    	  x=(x+1)%HEIGHT;
+	      else if (code == 37 && x>0) //left
+	    	  x--;
+	      repaint();
+	}
+	@Override
+	public void keyReleased(KeyEvent e) {}
+	@Override
+	public void actionPerformed(ActionEvent e) {
+	     if (e.getSource()==timer1){
+	    	 y=(y+1)%WIDTH;
+	     }
+	     repaint();
+	}
+}
+</code>