坦克大战1.5-2.6

Debug的运用
一步一步跟踪代码
为代码设置断点
step into和step over的概念
学会在运行过程中观测变量的值
版本1.5
功能:
画一辆敌人的坦克
步骤:
加入区别敌我的量good
根据敌我的不同设置不同的颜色
更新Tank的构造函数,加入bGood
TankClient中new出敌人的坦克并画出

版本1.6

功能:

将敌人坦克击毙

分析:一颗子弹击中敌人坦克

步骤:
Missile中加入hitTank(Tank)方法,返回布尔类型

碰撞检测的辅助类Rectangle

为Tank和Missile都加入getRect方法

当击中敌人坦克时,坦克被打死,子弹也死去

增加控制Tank生死的量live

如果死去就不画了

注意:

不要照抄代码

沿着思路往里加入代码

版本1.7

功能:

加入爆炸

步骤:

添加爆炸类

用不同直径的圆模拟爆炸

加入live

加入位置属性

加入draw方法

爆炸应该存在于集合类中

TankClient加入集合

将集合中的爆炸逐一画出(如果死去就去除)

击毙一辆坦克后应产生爆炸

hitTank时应产生爆炸

版本1.8

功能:

添加多辆坦克

步骤:

用容器来装敌人的Tank

向容器中装入多辆敌人的Tank

画出来

运行,不能打掉

添加hitTanks方法,打一些列Tank

TankClient里面每发子弹都打tanks

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);
	
	List<Tank> tanks = new ArrayList<Tank>();
	List<Explode> explodes = new ArrayList<Explode>();
	List<Missile> missiles = new ArrayList<Missile>();
	
	Image offScreenImage = null;
	
	public void paint(Graphics g) {
		g.drawString("missiles count:" + missiles.size(), 50, 50);
		g.drawString("explodes count:" + explodes.size(), 80, 80);
		g.drawString("tanks count:" + tanks.size(), 50, 90);
		
		for(int i=0;i<missiles.size();i++){
			Missile m = missiles.get(i);
			m.hitTanks(tanks);
			//if(!m.isLive())
				//missiles.remove(m);
			//else
				m.draw(g);
		}
		
		for(int i=0;i<explodes.size();i++){
			Explode e = explodes.get(i);
			e.draw(g);
		}
		
		for(int i=0;i<tanks.size();i++){
			Tank t = tanks.get(i);
			t.draw(g);
		}
		
		myTank.draw(g);
	}
	
	public void update(Graphics g) {
		if(offScreenImage == null) {
			offScreenImage = this.createImage(GAME_WIDTH, GAME_HEIGHT);
		}
		Graphics gOffScreen = offScreenImage.getGraphics();
		Color c = gOffScreen.getColor();
		gOffScreen.setColor(Color.GREEN);
		gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
		gOffScreen.setColor(c);
		paint(gOffScreen);
		g.drawImage(offScreenImage, 0, 0, null);
	}

	public void lauchFrame() {
		
		for(int i=0;i<10;i++){
			tanks.add(new Tank((50+40*(i+1)), 50, false, this));
		}
		
		this.setLocation(300, 50);
		this.setSize(GAME_WIDTH, GAME_HEIGHT);
		this.setTitle("TankWar");
		this.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		this.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.lauchFrame();
	}
	
	private class PaintThread implements Runnable {

		public void run() {
			while(true) {
				repaint();
				try {
					Thread.sleep(50);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}
	
	private class KeyMonitor extends KeyAdapter {

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

		public void keyPressed(KeyEvent e) {
			myTank.keyPressed(e);
		}
		
	}
}

import java.awt.*;
import java.awt.event.*;

public class Tank {
	public static final int XSPEED = 5;
	public static final int YSPEED = 5;
	
	public static final int WIDTH = 30;
	public static final int HEIGHT = 30;
	
	private boolean live = true;
	
	public boolean isLive() {
		return live;
	}

	public void setLive(boolean live) {
		this.live = live;
	}

	TankClient tc = null;
	
	private boolean good;
	
	private int x, y;
	
	private boolean bL=false, bU=false, bR=false, bD = false;
	enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};
	
	private Direction dir = Direction.STOP;
	private Direction ptDir = Direction.D;

	public Tank(int x, int y, boolean good) {
		this.x = x;
		this.y = y;
		this.good = good;
	}
	
	public Tank(int x, int y, boolean good, TankClient tc) {
		this(x, y, good);
		this.tc = tc;
	}
	
	public void draw(Graphics g) {
		if(!live) {
			if(!good){
				tc.tanks.remove(this);
			}
			return;
		}
		
		Color c = g.getColor();
		if(good) g.setColor(Color.RED);
		else g.setColor(Color.BLUE);
		g.fillOval(x, y, WIDTH, HEIGHT);
		g.setColor(c);
		
		switch(ptDir) {
		case L:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y + Tank.HEIGHT/2);
			break;
		case LU:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y);
			break;
		case U:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x+Tank.WIDTH/2, y);
			break;
		case RU:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x+Tank.WIDTH, y);
			break;
		case R:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x+Tank.WIDTH, y + Tank.HEIGHT/2);
			break;
		case RD:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x+Tank.WIDTH, y + Tank.HEIGHT);
			break;
		case D:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x+Tank.WIDTH/2, y + Tank.HEIGHT);
			break;
		case LD:
			g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y + Tank.HEIGHT);
			break;
		}
		
		move();
	}
	
	void move() {
		switch(dir) {
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		case U:
			y -= YSPEED;
			break;
		case RU:
			x += XSPEED;
			y -= YSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			x -= XSPEED;
			y += YSPEED;
			break;
		case STOP:
			break;
		}
		
		if(this.dir != Direction.STOP)
			ptDir = dir;
		
		if(x < 0)
			x = 0;
		if(y < 28)
			y = 28;
		if(x + Tank.WIDTH > TankClient.GAME_WIDTH)
			x = TankClient.GAME_WIDTH - Tank.WIDTH;
		if(y + Tank.HEIGHT > TankClient.GAME_HEIGHT)
			y = TankClient.GAME_HEIGHT - Tank.HEIGHT;
	}
	
	public void keyPressed(KeyEvent e) {
		int key = e.getKeyCode();
		switch(key) {
		case KeyEvent.VK_LEFT :
			bL = true;
			break;
		case KeyEvent.VK_UP :
			bU = true;
			break;
		case KeyEvent.VK_RIGHT :
			bR = true;
			break;
		case KeyEvent.VK_DOWN :
			bD = true;
			break;
		}
		locateDirection();
	}
	
	void locateDirection() {
		if(bL && !bU && !bR && !bD) dir = Direction.L;
		else if(bL && bU && !bR && !bD) dir = Direction.LU;
		else if(!bL && bU && !bR && !bD) dir = Direction.U;
		else if(!bL && bU && bR && !bD) dir = Direction.RU;
		else if(!bL && !bU && bR && !bD) dir = Direction.R;
		else if(!bL && !bU && bR && bD) dir = Direction.RD;
		else if(!bL && !bU && !bR && bD) dir = Direction.D;
		else if(bL && !bU && !bR && bD) dir = Direction.LD;
		else if(!bL && !bU && !bR && !bD) dir = Direction.STOP;
	}

	public void keyReleased(KeyEvent e) {
		int key = e.getKeyCode();
		switch(key) {
		case KeyEvent.VK_CONTROL:
			fire(); 
			break;
		case KeyEvent.VK_LEFT :
			bL = false;
			break;
		case KeyEvent.VK_UP :
			bU = false;
			break;
		case KeyEvent.VK_RIGHT :
			bR = false;
			break;
		case KeyEvent.VK_DOWN :
			bD = false;
			break;
		}
		locateDirection();
		
	}
	
	public Missile fire(){
		int x = this.x + Tank.WIDTH/2 - Missile.WIDTH;
		int y = this.y + Tank.HEIGHT/2 - Missile.HEIGHT;
		Missile m = new Missile(x , y, ptDir, this.tc);
		tc.missiles.add(m);
		return m;
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
}

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



public class Missile {
	public static final int XSPEED = 10;
	public static final int YSPEED = 10;
	
	public static final int WIDTH = 10;
	public static final int HEIGHT = 10;
	
	int x, y;
	Tank.Direction dir;
	
	private boolean Live = true;

	private TankClient tc;
	
	public boolean isLive() {
		return Live;
	}

	public Missile(int x, int y, Tank.Direction dir) {
		this.x = x;
		this.y = y;
		this.dir = dir;
	}
	public Missile(int x, int y, Tank.Direction dir, TankClient tc) {
		this(x, y, dir);
		this.tc = tc;
	}
	
	
	public void draw(Graphics g){
		if(!Live){
			tc.missiles.remove(this);
			return;
		}
		Color c = g.getColor();
		g.setColor(Color.BLACK);
		g.fillOval(x, y, WIDTH, HEIGHT);
		g.setColor(c);
		
		move();
	}
	
	private void move(){
		
		switch(dir) {
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		case U:
			y -= YSPEED;
			break;
		case RU:
			x += XSPEED;
			y -= YSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			x -= XSPEED;
			y += YSPEED;
			break;
		}
		
		if(x <0 || y < 0 || x > TankClient.GAME_WIDTH || y > TankClient.GAME_HEIGHT){
			Live = false;
		}
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	public boolean hitTank(Tank t) {
		if(this.getRect().intersects(t.getRect()) && t.isLive()) {
			t.setLive(false);
			this.Live = false;
			Explode e = new Explode(x, y, tc);
			tc.explodes.add(e);
			return true;
		}
		return false;
	}
	
	public boolean hitTanks(List<Tank> tanks){
		for(int i=0;i<tanks.size();i++){
			if(hitTank(tanks.get(i))){
				return true;
			}
		}
		return false;
	}

}

import java.awt.*;

public class Explode {
	int x, y;
	private boolean live = true;
	
	private TankClient tc;
	
	int[] diameter = {4, 7, 12, 18, 26, 32, 49, 30, 14, 6};
	int step = 0;
	
	public Explode(int x, int y, TankClient tc){
		this.x = x;
		this.y = y;
		this.tc = tc;
	}
	
	public void draw(Graphics g){
		if(!live) {
			tc.explodes.remove(this);
			return;
		}
		
		if(step == diameter.length){
			live = false;
			step = 0;
			return;
		}
		
		Color c = g.getColor();
		g.setColor(Color.ORANGE);
		g.fillOval(x, y, diameter[step], diameter[step]);
		
		step++;
	}
}






你可能感兴趣的:(坦克大战1.5-2.6)