import java.awt.Font;
import java.awt.Color;
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 java.util.Random;

import javax.swing.JPanel;
import javax.swing.Timer;

public class PongPanel extends JPanel implements ActionListener, KeyListener {

    private Game game;

    private boolean running = true;

    private boolean upPressed = false, downPressed = false, wPressed = false, sPressed = false;

    private int ballX = 400, ballY = 200;
    private int diameter = 20;
    private int ballDeltaX = -5, ballDeltaY = 5;

    private int playerOneX = 25, playerOneY = 220;
    private int playerOneWidth = 20, playerOneHeight = 60;

    private int playerTwoX = 750, playerTwoY = 220;
    private int playerTwoWidth = 20, playerTwoHeight = 60;

    private int paddleSpeed = 10;

    Random random = new Random();
    private final float hue = random.nextFloat();
    private final float saturation = 0.9f;
    private float luminance = 1.0f;

    private int deaths;
    private int rallyScore = 0;
    private int rallyInterval = 5;

    private long currentTime = System.currentTimeMillis();
    public static Thread thread;

    private int[] Colors = new int[getWidth() * getHeight()];

    public PongPanel() {
        Random rand = new Random();
        setBackground(new Color(rand.nextInt(0xFF4AF6)));

        setFocusable(true);
        addKeyListener(this);

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

    public void actionPerformed(ActionEvent e) {
        step();
    }

    public void step() {

        if (upPressed) {
            if (playerTwoY - paddleSpeed > 0) {
                playerTwoY -= paddleSpeed;
            }
        }
        if (downPressed) {
            if (playerTwoY + paddleSpeed + playerTwoHeight < getHeight()) {
                playerTwoY += paddleSpeed;
            }
        }

        if (wPressed) {
            if (playerOneY - paddleSpeed > 0) {
                playerOneY -= paddleSpeed;
            }
        }
        if (sPressed) {
            if (playerOneY + paddleSpeed + playerOneHeight < getHeight()) {
                playerOneY += paddleSpeed;
            }
        }

        int nextBallLeft = ballX + ballDeltaX;
        int nextBallRight = ballX + diameter + ballDeltaX;
        int nextBallTop = ballY + ballDeltaY;
        int nextBallBottom = ballY + diameter + ballDeltaY;

        int playerOneRight = playerOneX + playerOneWidth;
        int playerOneTop = playerOneY;
        int playerOneBottom = playerOneY + playerOneHeight;

        float playerTwoLeft = playerTwoX;
        float playerTwoTop = playerTwoY;
        float playerTwoBottom = playerTwoY + playerTwoHeight;

        if (nextBallTop < 0 || nextBallBottom > getHeight()) {
            ballDeltaY *= -1;

        }

        if (nextBallLeft < playerOneRight) {

            if (nextBallTop > playerOneBottom || nextBallBottom < playerOneTop) {

                System.out.println("You died. Your rally was " + rallyScore + ".");
                deaths++;
                ballX = 400;
                ballY = 200;
            } else {
                rallyScore++;
                ballDeltaX *= -1;
            }
        }

        if (nextBallRight > playerTwoLeft) {

            if (nextBallTop > playerTwoBottom || nextBallBottom < playerTwoTop) {

                System.out.println("You died. Your rally was " + rallyScore + ".");

                deaths++;

                ballX = 400;
                ballY = 200;
            } else {
                rallyScore++;
                ballDeltaX *= -1;
            }
        }

        ballX += ballDeltaX;
        ballY += ballDeltaY;

        if (rallyScore % rallyInterval == 1) {
            ballDeltaX = ballDeltaX - 2;
            ballDeltaY = ballDeltaY + 2;
            paddleSpeed = paddleSpeed + 2;
        }

        repaint();
    }

    public synchronized void Score() {

    }

    public void RandomColor() {

    }

    public void paintComponent(Graphics g) {

        super.paintComponent(g);
        Random rand = new Random();

        for (int lineY = 0; lineY < getHeight(); lineY += 50) {
            g.setColor(new Color(rand.nextInt(0xFF4AF6)));
            g.fillRoundRect(400, lineY, 20, 800, 0, 0);
        }

        g.setColor(Color.WHITE);
        g.fillRoundRect(ballX, ballY, 25, 25, 5, 25);
        for (int tick = 0; tick > getHeight(); tick--) {

            g.setColor(new Color(rand.nextInt(0xFF4AF6)));
        }
        g.setColor(new Color(rand.nextInt(0xFF4AF6)));
        g.fillRoundRect(playerOneX, playerOneY, playerOneWidth,
                playerOneHeight, 50, 5);

        g.fillRoundRect(playerTwoX, playerTwoY, playerTwoWidth,
                playerTwoHeight, 50, 5);

        g.setColor(Color.WHITE);
        g.fillRoundRect(335, 180, 150, 150, 50, 50);
        g.setFont(new Font(Font.DIALOG, Font.BOLD, 150));
        String rally = " " + rallyScore;
        g.setColor(new Color(0xFF2172));
        g.drawString(rally, 328, 310);
        g.dispose();
    }

    public void keyTyped(KeyEvent e) {
    }

    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            upPressed = true;
        } else if (e.getKeyCode() == KeyEvent.VK_DOWN) {
            downPressed = true;
        } else if (e.getKeyCode() == KeyEvent.VK_W) {
            wPressed = true;
        } else if (e.getKeyCode() == KeyEvent.VK_S) {
            sPressed = true;
        }
    }

    public void keyReleased(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            upPressed = false;
        } else if (e.getKeyCode() == KeyEvent.VK_DOWN) {
            downPressed = false;
        } else if (e.getKeyCode() == KeyEvent.VK_W) {
            wPressed = false;
        } else if (e.getKeyCode() == KeyEvent.VK_S) {
            sPressed = false;
        }
    }
}