package pong;

import java.awt.Canvas;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.image.BufferStrategy;

import java.awt.image.BufferedImage;

import javax.swing.JFrame;

public class Game extends Canvas implements Runnable, KeyListener {

private static final long serialVersionUID = 1L;

public static final int WIDTH = 160;

public static final int HEIGHT = 120;

public static final int SCALE = 3;

public BufferedImage layer = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);

public static Player player;

public static final int MEIOX_P = ((((WIDTH / 2) - ((Player.WIDTH_P / SCALE) / 2))) / (SCALE*2));

public static final int MEIOY_P = (HEIGHT / 2) - ((Player.HEIGHT_P / SCALE) / 2);

public static final int MEIOX_E = (WIDTH - ((((WIDTH / 2) - ((Player.WIDTH_P / SCALE) / 2))) / (SCALE*2)));

public static final int MEIOY_E = (HEIGHT / 2) - ((Enemy.HEIGHT_E / SCALE) / 2);

public static final int MEIOX_B = WIDTH/2;

public static final int MEIOY_B = HEIGHT/2;

public static Enemy enemy;

public static Ball ball;

public Game() {

this.setPreferredSize(new Dimension(WIDTH * SCALE, HEIGHT * SCALE));

this.addKeyListener(this);

this.setFocusable(true); //necessario para funcionar a captura automatica de teclas

player = new Player(MEIOX_P, MEIOY_P);

enemy = new Enemy(MEIOX_E, MEIOY_E);

ball = new Ball(MEIOX_B,MEIOY_B);

}

public static void main(String[] args) {

Game game = new Game();

JFrame frame = new JFrame("Pong");

frame.setResizable(false);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.add(game);

frame.pack();

frame.setLocationRelativeTo(null);

frame.setVisible(true);

//frame.setFocusable(true);

//frame.requestFocus();

new Thread(game).start();

}

public void tick() {

player.tick();

enemy.tick();

ball.tick();

}

public void render() {

BufferStrategy bs = this.getBufferStrategy();

if (bs == null) {

this.createBufferStrategy(3);

return;

}

Graphics g = layer.getGraphics();

g.setColor(Color.BLACK);

g.fillRect(0, 0, WIDTH, HEIGHT);

player.render(g);

enemy.render(g);

ball.render(g);

g = bs.getDrawGraphics();

g.drawImage(layer, 0, 0, WIDTH * SCALE, HEIGHT * SCALE, null);

bs.show();

}

@Override

public void run() {

while (true) {

tick();

render();

try {

Thread.sleep(1000 / 60);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

@Override

public void keyTyped(KeyEvent e) {

}

@Override

public void keyPressed(KeyEvent e) {

//System.out.println(e.getKeyCode());

if (e.getKeyCode() == KeyEvent.VK_UP) {

player.up = true;

} else if (e.getKeyCode() == KeyEvent.VK_DOWN) {

player.down = true;

}

}

@Override

public void keyReleased(KeyEvent e) {

//System.out.println(e.getKeyCode());

if (e.getKeyCode() == KeyEvent.VK_UP) {

player.up = false;

} else if (e.getKeyCode() == KeyEvent.VK_DOWN) {

player.down = false;

}

}

}