package net.anyspieceofinter.unnamedgameproject;

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Dimension;
import javax.swing.JFrame;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import java.awt.image.BufferStrategy;
import net.anyspieceofinter.unnamedgameproject.input.Keyboard;
import net.anyspieceofinter.unnamedgameproject.graphics.Screen;

public class Game extends Canvas implements Runnable {

    public static int aspectratioWidth = 7;
    public static int aspectratioHeight = 5;
    public static int scale = 2;
    public static int width = 280;
    public static int height = width / aspectratioWidth * aspectratioHeight;

    //0 - 29,99 | 30,000 pixels

    public static int bufferLayers = 3;
    private JFrame frame;

    private Keyboard key;

    private boolean running = false;

    private Screen screen;

    private BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    private int[] pixels = ((DataBufferInt)image.getRaster().getDataBuffer()).getData();

    public Game() {

        Dimension size = new Dimension(width*scale, height*scale);
        setPreferredSize(size);

        screen = new Screen(width, height);
        frame = new JFrame();
        key = new Keyboard();

        addKeyListener(key);


    }

    private Thread thread;
    public synchronized void start() {

        running = true;

        thread = new Thread(this, "Game");
        thread.start();

    }

    public synchronized void stop() {

        running = false;

        try {

            thread.join();

        } catch (InterruptedException e) {

            e.printStackTrace();

        }

    }

    public void run() {

        long lastTime = System.nanoTime();
        long timer = System.currentTimeMillis();
        final double nanoSeconds = 1000000000.0 / 30.0;
        double delta = 0;

        int updates = 0;
        int frames = 0;


        while(running) {

            long now = System.nanoTime();
            delta += (now - lastTime) / nanoSeconds;
            lastTime = now;

            while (delta >= 1) {

                update();

                updates++;
                delta--;

            }

            render();
            frames++;

            if(System.currentTimeMillis() - timer > 1000) {

                timer += 1000;

                frame.setTitle("unname game project [ups: " + updates + ", fps:  " + frames + "]");

                updates = 0;
                frames = 0;

            }

        }

        stop();

    }

    public void update() {

        key.update();

    }

    public void render() {

        BufferStrategy buffer = getBufferStrategy();

        if(buffer == null) {

            createBufferStrategy(Game.bufferLayers);
            return;

        }

        screen.clear();
        screen.render();

        for(int i = 0; i < pixels.length; i++) {

            pixels[i] = screen.pixels[i];
        }

        Graphics g = buffer.getDrawGraphics();
        g.setColor(Color.BLACK);
        g.fillRect(0, 0, getWidth(), getHeight());

        g.drawImage(image, 0, 0, getWidth(), getHeight(), null);

        g.dispose();
        buffer.show();

    }

    public static void main(String[] ags) {

        Game game = new Game();

        game.frame.setResizable(false);
        game.frame.setTitle("unnamed game project");
        game.frame.add(game);
        game.frame.pack();
        game.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        game.frame.setLocationRelativeTo(null);
        game.frame.setVisible(true);

        game.start();

    }

}