import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class Yard extends Frame{
	
	public static int ROWS=30;
	public static int COLS=30;
	public static int BLOCK_SIZE=15;
	boolean gameOver=false;
	
	Snake snake=new Snake(this);
	Egg egg=new Egg();
	
	Image offScreenImage=null;
	MyThread my=new MyThread();
	
	int score=0;
	
	public static void main(String[] args) {
		new Yard().launch();
	}

	public void launch() {
		this.setVisible(true);
		this.setLocation(200,200);
		this.setSize(COLS*BLOCK_SIZE,ROWS*BLOCK_SIZE);
		this.addWindowListener(new WindowMonitor());
		this.addKeyListener(new KeyMonitor());
		new Thread(my).start();
	}

	@Override
	public void paint(Graphics g) {
		Color c=g.getColor();
		g.setColor(Color.GRAY);
		g.fillRect(0, 0, COLS*BLOCK_SIZE,ROWS*BLOCK_SIZE);
		g.setColor(Color.DARK_GRAY);
		for(int i=0;i<ROWS;i++) {
			g.drawLine(0, BLOCK_SIZE*i, BLOCK_SIZE*COLS, BLOCK_SIZE*i);
		}
		for(int j=1;j<COLS;j++) {
			g.drawLine(BLOCK_SIZE*j,0,BLOCK_SIZE*j , BLOCK_SIZE*ROWS);
		}
		g.setColor(Color.YELLOW);
		g.drawString("Score:"+score,10,60);
		if(gameOver==true) {
			g.setFont(new Font("IJ",Font.BOLD|Font.HANGING_BASELINE,50));
			g.drawString("Game Over", 80, 200);
			my.GameOver();
		}
		g.setColor(c);
		snake.eat(egg);
		snake.draw(g);
		egg.draw(g);
		snake.checkDead();
		
	}
	
	public void update(Graphics g) {
		if(offScreenImage==null) {
			offScreenImage=this.createImage(COLS*BLOCK_SIZE,ROWS*BLOCK_SIZE);
		}
		Graphics gOff=offScreenImage.getGraphics();
		paint (gOff);
		g.drawImage(offScreenImage, 0, 0, null);
	}
	
    public class MyThread implements Runnable {
    	boolean flag=true;
		@Override
		public void run() {
			while(flag) {
				repaint();
				try {
					Thread.sleep(200);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}

		public void GameOver() {
			flag=false;
		}
		
		public void reStart() {
			this.flag=true;
			
		}
	}
    	
	public class WindowMonitor extends WindowAdapter {
		public void windowClosing(WindowEvent e) {
			System.exit(0);
			}
	}
	
	public class KeyMonitor extends KeyAdapter {

		public void keyPressed(KeyEvent e) {
			snake.keyPressed(e);
			int key=e.getKeyCode();
			if(key==KeyEvent.VK_F2) {
				//my.reStart();
			}
		}
	}

	public void stop() {
		gameOver = true;
	}
}