import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.sound.sampled.*;
public class Pong {

    public static void main(String[] args) {
        JFrame frame = new JFrame("Pong");

        frame.setSize(1000, 800);
        frame.setResizable(false);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        PongPanel panel = new PongPanel();
        frame.add(panel);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
        frame.setAlwaysOnTop(true);
        frame.setAlwaysOnTop(false);

    }
    public static class PongPanel extends JPanel implements ActionListener, KeyListener {

        boolean wPressed = false;
        boolean sPressed = false;
        boolean upPressed = false;
        boolean downPressed = false;
        boolean onePressed = false;
        boolean twoPressed = false;
        boolean start = true;
        boolean vsCPU = false;
        boolean spacePressed = false;

        int LpaddleY = 400;
        int RpaddleY = 400;

        int ballX = 500;
        int ballY = 400;
        int ballXspeed = 5;
        int ballYspeed = 5;

        int leftScore = 0;
        int rightScore = 0;

        int LpaddleX = 100;
        int LpaddleW = 30;
        int LpaddleH = 100;
        int RpaddleX = 900;
        int RpaddleW = 30;
        int RpaddleH = 100;
        int ballW = 15;
        int ballH = 15;

        Timer timer = new Timer(1000/60 , this);

        public PongPanel() {
            setBackground(new Color(0, 0, 0));

            setPreferredSize(new Dimension(1000,800));

            timer.start();
            setFocusable(true);
            addKeyListener(this);

        }

        public boolean intersects(int px1, int py1, int pw, int ph) {
            int bx1 = ballX;
            int by1 = ballY;
            int bx2 = ballX + ballW;
            int by2 = ballY + ballH;

            int px2 = px1 + pw;
            int py2 = py1 + ph;

            if(bx2 > px1 && bx1 < px2 && by2 > py1 && by1 < py2) {
                playSound("collision.wav");
                return true;
            }
            else {
                return false;

            }

        }

        public void paintComponent(Graphics g) {
            super.paintComponent(g);

            if(start == true) {
                g.setColor(new Color(255,255,255));
                g.setFont(new Font("IrisUPC", Font.BOLD, 100));
                g.drawString("Pong!", 375, 200);
                g.setFont(new Font("IrisUPC", Font.BOLD, 75));
                g.drawString("By: name", 280, 250);
                g.setFont(new Font("IrisUPC", Font.BOLD, 85));
                g.drawString("Press 1 To Play vs CPU", 150, 3751);
                g.setFont(new Font("IrisUPC", Font.BOLD, 85));
                g.drawString("Press 2 To Play vs HUMAN", 150, 450);

            }
            else if(leftScore < 2 && rightScore < 2) {
                g.setColor(new Color(255,255,255));
                g.fillRect(LpaddleX,LpaddleY,LpaddleW,LpaddleH);
                g.fillRect(RpaddleX, RpaddleY, RpaddleW, RpaddleH);
                g.fillRect(ballX, ballY, ballW, ballH);
                g.setFont(new Font("IrisUPC", Font.BOLD, 100));
                g.drawString("" + leftScore, 200, 100);
                g.drawString("" + rightScore, 800, 100);
            }
            else if(leftScore >= 2) {
                timer.stop();
                g.setFont(new Font("IrusUPC", Font.BOLD, 50));
                g.setColor(new Color(255,255,255));
                g.drawString("Left Player Wins!", 300, 400);
                //if(spacePressed == true) {
                //    start = true;
            }

            else if(rightScore >= 2) {
                timer.stop();
                g.setFont(new Font("IrusUPC", Font.BOLD, 50));
                g.setColor(new Color(255,255,255));

            }
        }

        public void actionPerformed(ActionEvent e) {

            if(start == true) {
                if(onePressed == true) {
                    start = false;
                    vsCPU = true;

                }
                if(twoPressed == true) {
                    start = false;

                }
            }

            if( wPressed == true )  { LpaddleY = LpaddleY - 10; }
            if( sPressed == true )  { LpaddleY = LpaddleY + 10; }
            if( upPressed == true )  { RpaddleY = RpaddleY - 10; }
            if( downPressed == true )  { RpaddleY = RpaddleY + 10; }
            if(LpaddleY <= 0)     { LpaddleY = 0 ; }
            if(LpaddleY + LpaddleH >= 800)  { LpaddleY = 800 - LpaddleH;  }
            if(RpaddleY <= 0)     { RpaddleY = 0; }
            if(RpaddleY + LpaddleH >= 800)  { RpaddleY = 800 - LpaddleH; }

            if(ballX <= 0) {
                ballX = 500;
                ballY = 400;
                rightScore++;
                playSound("score.wav");
                try{Thread.sleep(500);} catch (Exception ex) {
                }
                ballXspeed = 2;
                ballYspeed = -7;
            }
            if(ballX + 25 >= 1000) {
                ballX = 500;
                ballY = 400;
                leftScore++;
                playSound("score.wav");
                try{Thread.sleep(500);} catch (Exception ex) {
                }
                ballXspeed = 2;
                ballYspeed = -7;
            }
            if(ballY <= 0) {
                ballYspeed = ballYspeed * -1;
            }
            if(ballY + 25 >= 800) {
                ballYspeed = ballYspeed * -1;
            }

            ballX = ballX + ballXspeed;
            ballY = ballY + ballYspeed;

            boolean touchingLeftPaddle = intersects(LpaddleX, LpaddleY, LpaddleW, LpaddleH);
            if(touchingLeftPaddle == true) {
                ballXspeed = ballXspeed * -1;
                ballXspeed++;
                if(ballX < LpaddleX + LpaddleW) {
                    ballX = LpaddleX + LpaddleW;
                }
            }
            boolean touchingRightPaddle = intersects(RpaddleX, RpaddleY, RpaddleW, RpaddleH);
            if(touchingRightPaddle == true) {
                ballXspeed = ballXspeed * -1;
                ballXspeed--;
                if(ballX + ballW > RpaddleX) {
                    ballX = RpaddleX - ballW;
                }

            }
            //RpaddleY = ballY - RpaddleH/2 + ballH/2;

            // Impossible Bot ^

            //if(RpaddleY > ballY - RpaddleH/2 + ballH/2 && ballX > 250) {RpaddleY -= 12;}
            //else if (RpaddleY < ballY - RpaddleH/2 + ballH/2 && ballX > 250) {RpaddleY += 12;}

            //Possible Bot ^

            repaint();
        }

        public void keyPressed(KeyEvent e) {
            if(e.getKeyCode() == KeyEvent.VK_W) { wPressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_S) { sPressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_UP) { upPressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_DOWN) { downPressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_1) { onePressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_2) { twoPressed = true; }
            if(e.getKeyCode() == KeyEvent.VK_SPACE) { spacePressed = true; }
        }

        public void keyReleased(KeyEvent e) {
            if(e.getKeyCode() == KeyEvent.VK_W) { wPressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_S) { sPressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_UP) { upPressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_DOWN) { downPressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_1) { onePressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_2) { twoPressed = false; }
            if(e.getKeyCode() == KeyEvent.VK_SPACE) { spacePressed = true; }
        }

        public void keyTyped(KeyEvent e) {
        }

        public static void playSound(String s) {
            try {
                File file = new File(s);
                AudioInputStream audio = AudioSystem.getAudioInputStream(file);
                Clip clip  = AudioSystem.getClip();
                clip.open(audio);
                clip.start();
            }
            catch (Exception e) {
                System.out.println("Can't find file named: " + s);
            }
        }
    }
}