package V17;

import java.awt.*;
import java.awt.event.*;
import java.util.List;
import java.util.ArrayList;

public class TankClient extends Frame {
	public static final int GAME_WIDTH = 800;
	public static final int GAME_HEIGHT = 600;

	Tank myTank = new Tank(50, 50, true, this);
	//new ������һ���з���̹��
	Tank enemyTank = new Tank(100, 100, false, this);

	List<Missile> missiles = new ArrayList<Missile>();
	List<Explode> explodes = new ArrayList<Explode>();

	//����һ������ͼƬ
	Image offScreenImage = null;

	//paint�����������Ҫ�����ã�һ��Ҫ���ػ���ʱ�ᱻ�Զ�����
	public void paint(Graphics g) {
		//��ʾ��������װ�˶����ڵ�
		g.drawString("missiles count: " + missiles.size(), 10, 50);
		//��ʾ�ж��ٸ���ը
		g.drawString("explodes count: " + explodes.size(), 10, 70);
		//�������е��ڵ����������
		for(int i = 0; i < missiles.size(); i++) {
			Missile missile = missiles.get(i);
			missile.hitTank(enemyTank);
			missile.draw(g);
		}
		//�������еı�ը���������
		for(int i = 0; i < explodes.size(); i++) {
			Explode e = explodes.get(i);
			e.draw(g);
		}
		myTank.draw(g);
		enemyTank.draw(g);
	}

	public void update(Graphics g) {
		if(offScreenImage == null) {
			offScreenImage = this.createImage(GAME_WIDTH, GAME_HEIGHT);
		}
		//�õ����ͼƬ�Ļ���
		Graphics gOffScreen = offScreenImage.getGraphics();
		Color c = gOffScreen.getColor();
		gOffScreen.setColor(Color.GREEN);
		gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
		gOffScreen.setColor(c);
		print(gOffScreen);
		g.drawImage(offScreenImage, 0, 0, null);
	}

	//���ƴ���
	public void launchFrame() {
		this.setLocation(300, 50);
		this.setSize(GAME_WIDTH, GAME_HEIGHT);
		this.setTitle("TankWar");
		addWindowListener(new WindowAdapter() {//�رմ���
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		setResizable(false);
		this.setBackground(Color.GREEN);
		
		this.addKeyListener(new KeyMonitor());
		
		setVisible(true);
		
		new Thread(new PaintThread()).start();
	}

	public static void main(String[] args) {
		TankClient tc = new TankClient();
		tc.launchFrame();
	}

	private class PaintThread implements Runnable {
		public void run() {
			while(true) {
				repaint();
				try {
					Thread.sleep(50);
				} catch(InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}

	//��Ӽ��̼�����
	private class KeyMonitor extends KeyAdapter {
		public void keyPressed(KeyEvent e) {
			myTank.keyPressed(e);
		}
		public void keyReleased(KeyEvent e) {
			myTank.keyReleased(e);
		}
	}

}