package v1_9;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.List;
public class TankClient extends Frame {
	  public static final int GAME_WIDTH = 800;//宽度常量
	    public static final int GAME_HEIGHT = 600;//高度常量
	    Tank myTank = new Tank(50, 50,true,this);
	   // Tank enemyTank=new Tank(100,100,false,this);
	    List<Missile> missiles = new ArrayList<Missile>();
	    List<Explode> explodes = new ArrayList<Explode>();
	    List<Tank> tanks = new ArrayList<Tank>();
	    Missile m = new Missile(50, 50, Tank.Direction.R);
	    Image offScreenImage = null;//虚拟图片

	    public void launchFrame() {
	        for(int i = 0; i < 10; i++) {
	            tanks.add(new Tank(50 + 40 * (i + 1), 50, false, this));
	        }
	        //设置窗口出现的位置
	        this.setLocation(300, 50);
	        //设置窗口的宽度高度
	        this.setSize(GAME_WIDTH, GAME_HEIGHT);
	        this.setBackground(Color.green);
	        this.setTitle("TankWar");
	        addWindowListener(new WindowAdapter() {
	            public void windowClosing(WindowEvent e) {
	                System.exit(0);
	            }
	        });
	        setResizable(false);
	        setVisible(true);
	        this.setBackground(Color.GREEN);
	        this.addKeyListener(new KeyMonitor());
	        new Thread(new PaintThread()).start();
	    }

	    //paint这个方法不需要被调用，一旦要被重画的时会被自动 调用
	    public void paint(Graphics g) {
	        //看出容器中装了多少炮弹
	        g.drawString("missiles count: " + missiles.size(), 10, 50);
	        //显示有多少个爆炸
	        g.drawString("explodes count: " + explodes.size(), 10,70);
	        g.drawString("tanks count: " + tanks.size(), 10, 90);


	                //将容器中的炮弹逐个画出来
	        for(int i = 0; i < explodes.size(); i++) {
	            Explode e = explodes.get(i);
	            e.draw(g);
	        }
	        myTank.draw(g);

	        for (int i=0;i<tanks.size();i++){
	            tanks.get(i).draw(g);
	        }
	        //将容器中的爆炸逐个画出来
	        for(int i = 0; i < missiles.size(); i++) {
	           Missile m=missiles.get(i);
	            m.hitTanks(tanks);
	            m.draw(g);
	        }

	    }

	    private class KeyMonitor extends KeyAdapter {
	        public void keyPressed(KeyEvent e) {
	            myTank.KyePressed(e);
	        }

	        public void keyReleased(KeyEvent e) {
	            myTank.kyeReleased(e);
	        }
	    }

	    private class PaintThread implements Runnable {
	        //内部类（a)可以方便的访问包装类的方法。不方便公开的，只为包装类服务的类应当定义为内部类）
	        @Override
	        public void run() {
	            while (true) {
	                repaint();
	                try {
	                    Thread.sleep(100);
	                } catch (InterruptedException e) {
	                    e.printStackTrace();
	                }
	            }
	        }
	    }

	    public void update(Graphics g) {
	        if (offScreenImage == null) {    //若为null则创建一张图
	            offScreenImage = this.createImage(GAME_WIDTH, GAME_HEIGHT);
	        }
	        //拿到这个图片的画笔
	        Graphics gOffScreen = offScreenImage.getGraphics();
	        //默认黑色，所以需要与效果背景一致获取原色
	        Color c = gOffScreen.getColor();
	        gOffScreen.setColor(Color.GREEN);//与原背景色一致
	        //使用画笔画出一个实现的方框代替原画的背景效果
	        gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
	        gOffScreen.setColor(c);//设置原回来
	        //使用虚拟图像的画笔画圆
	        paint(gOffScreen);
	        //将虚拟图片画下来
	        g.drawImage(offScreenImage, 0, 0, null);
	    }


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

	    }

}