坦克大战

Missile类！

import java.awt.*;

 

 

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;

public boolean Live = true;

public boolean isLive() {

return Live;

}

 

int x , y;

Tank.Direction dir;

private TankClient tc;

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) {

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_HIGHT) {

Live = false;

tc.missiles.remove(this);

}

}

}

Tank类

import java.awt.*;

import java.awt.event.KeyEvent;

public class Tank {

private int x, y;

private static final int XSPEED = 5;

private static final int YSPEED = 5;

public static final int WIDTH =30;

public static final int HEIGHT =30;

TankClient tc ;

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) {

this.x = x;

this.y = y;

}

public Tank(int x, int y, TankClient tc) {

this(x,y);

this.tc = tc;

}

public 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(dir != Direction.STOP) {

this.ptDir = this.dir;

}

}

public void draw(Graphics g) {

Color c = g.getColor();

g.setColor(Color.RED);

g.fillOval(x, y, WIDTH, HEIGHT);

g.setColor(c);

switch(ptDir) {

case L:

g.drawLine(x, y+Tank.HEIGHT/2, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case LU:

g.drawLine(x, y, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case U:

g.drawLine(x+Tank.WIDTH/2, y, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case RU:

g.drawLine(x+Tank.WIDTH, y, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case R:

g.drawLine(x+Tank.WIDTH, y+Tank.HEIGHT/2, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case RD:

g.drawLine(x+Tank.WIDTH, y+Tank.HEIGHT, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case D:

g.drawLine(x+Tank.WIDTH/2, y+Tank.HEIGHT, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

case LD:

g.drawLine(x, y+Tank.HEIGHT, x+Tank.WIDTH/2, y+Tank.HEIGHT/2);

break;

}

move();

}

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;

}

this.locateDirection();

}

private Missile fire() {

int x = this.x + Tank.WIDTH/2 -Missile.WIDTH/2;

int y = this.y +Tank.HEIGHT/2 - Missile.HEIGHT/2;

Missile m = new Missile(x, y, ptDir, tc);

tc.missiles.add(m);

return m;

}

public 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:

//System.out.println("fire!");

fire();

break;

//tc.m = 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;

}

this.locateDirection();

}

}

TankClient类

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_HIGHT = 600;

Tank MyTank = new Tank(50, 50, this);

Missile m = null;

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

Image offScreenImage = null;

public void paint(Graphics g) {

g.drawString("Missile count:" + missiles.size(), 10, 50);

for(int i=0; i<missiles.size(); i++) {

Missile m = missiles.get(i);

//if(!m.isLive()) missiles.remove(m);

//else m.draw(g);

m.draw(g);

}

MyTank.draw(g);

}

public void update(Graphics g) {

if(offScreenImage == null) {

offScreenImage = this.createImage(GAME_WIDTH, GAME_HIGHT);

}

Graphics goffScreen = offScreenImage.getGraphics();

Color c = goffScreen.getColor();

goffScreen.setColor(Color.GREEN);

goffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HIGHT);

goffScreen.setColor(c);

paint(goffScreen);

g.drawImage(offScreenImage, 0, 0, null);

}

public static void main(String[] args) {

TankClient tc = new TankClient();

tc.lunchFrame();

}

public void lunchFrame() {

this.setLocation(400, 300);

this.setSize(GAME_WIDTH, GAME_HIGHT);

this.setVisible(true);

this.setTitle("TankWar");

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

this.addKeyListener(new KeyMonitor());

this.setResizable(false);

this.setBackground(Color.GREEN);

new Thread(new PaintThread()).start();

}

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);

}

}

}

哎。。终于有静点点心下来看教程。到1.4版本了。

加油。小伙子！

差不多比以前理解很多了！