import java.applet.Applet;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.Timer;

public class Snake extends Applet implements KeyListener, ActionListener {

    static Applet applet;

    Random random = new Random();
    Ruch ruch = new Ruch();
    Gra game = new Gra(this);

    Image tlo, snake, kulka, image;
    Graphics graphics;

    static final int szerokoscRamki = 800, wysokoscRamki = 600;
    static final int dot = 20;
    static final int allDots = 900;
    final int delay = 150;
    static int dots;

    static int foodX = 60, foodY = 60;

    static final int[] x = new int[allDots];
    static final int[] y = new int[allDots];

    static boolean left = false, up = false, right = false, down = false;
    static boolean gra = true;

    Timer timer = new Timer(delay, this);

    public Snake() {
        this.setFocusable(true);
        this.addKeyListener(this);

        timer.start();
    }

    public void init() {
        setBackground(Color.black);
        setSize(szerokoscRamki, wysokoscRamki);
        tlo = getImage(getCodeBase(), "zdjecia/tlo.jpg");
        snake = getImage(getCodeBase(), "zdjecia/snake.png");
        kulka = getImage(getCodeBase(), "zdjecia/kulka.png");
        image = createImage(szerokoscRamki, wysokoscRamki);
        graphics = image.getGraphics();

        game.StartGra();
    }

    public void update (Graphics g) {
        graphics.clearRect(0, 0, szerokoscRamki, wysokoscRamki);
        paint(graphics);
        g.drawImage(image, 0, 0, applet);
    }

    public void paint (Graphics g) {
        //rysuje tło do gry
        g.drawImage(tlo, 0, 0, szerokoscRamki-203, wysokoscRamki, this);
        //rysuje obrazek snake
        g.drawImage(snake, 600, 300, 200, 300, this);

        //rysuje snake
        for (int i = 0; i < dots; i++) {
            g.drawImage(kulka, x[i], y[i], 20, 20, this);
        }

        //rysuje jedzenie
        g.setColor(Color.RED);
        g.fillOval(foodX, foodY, 16, 16);

        //punkty
        g.setColor(Color.YELLOW);
        Font font1 = new Font("Arial", Font.ITALIC + Font.BOLD, 15);
        g.setFont(font1);
        g.drawString("Punkty: " + random.punkty, 665, 15);

        //wiadomość po przegranej
        if (gra == false) {
            g.setColor(Color.RED);
            Font font2 = new Font("Times New Roman", Font.ITALIC + Font.BOLD, 40);
            g.setFont(font2);
            g.drawString("PRZEGRAŁEŚ :(", 155, 300);

            g.setColor(Color.BLACK);
            Font font3 = new Font("Arial", Font.ITALIC + Font.BOLD, 15);
            g.setFont(font3);
            g.drawString("Kliknij spację, aby zagrać ponownie", 170, 330);
        }
    }

    @Override
    public void keyPressed(KeyEvent e) {

        int key = e.getKeyCode();

        if (key == KeyEvent.VK_LEFT && !right) {
            left = true;
            up = false;
            right = false;
            down = false;
        }

        if (key == KeyEvent.VK_UP && !down) {
            left = false;
            up = true;
            right = false;
            down = false;
        }

        if (key == KeyEvent.VK_RIGHT && !left) {
            left = false;
            up = false;
            right = true;
            down = false;
        }

        if (key == KeyEvent.VK_DOWN && !up) {
            left = false;
            up = false;
            right = false;
            down = true;
        }

        if (key == KeyEvent.VK_SPACE) {
            random.punkty = 0;
            game.StartGra();
        }

        if (key == KeyEvent.VK_P) {
            game.Stop();
        }

        if (key == KeyEvent.VK_ENTER) {
            game.GrajDalej();
        }

    }

    @Override
    public void keyReleased(KeyEvent e) {}

    @Override
    public void keyTyped(KeyEvent e) {}

    @Override
    public void actionPerformed(ActionEvent e) {
        if(gra) {
            random.Food();
            ruch.Sterowanie();
            game.Przegrana();
        }
        repaint();
    }

}