（100分）Java寫“坦克大戰”

package com.bjsxt.tank;

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import java.awt.Color;

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;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import java.util.Properties;

/**

* 這個類的作用是坦克游戲的主窗口

* @author mashibing

*

*/

public class TankClient extends Frame {

/**

* 整個坦克游戲的寬度

*/

public static final int GAME_WIDTH = 800;

public static final int GAME_HEIGHT = 600;

Tank myTank = new Tank(50, 50, true, Direction.STOP, this);

Wall w1 = new Wall(100, 200, 20, 150, this), w2 = new Wall(300, 100, 300, 20, this);

ListExplode explodes = new ArrayListExplode();

ListMissile missiles = new ArrayListMissile();

ListTank tanks = new ArrayListTank();

Image offScreenImage = null;

Blood b = new Blood();

public void paint(Graphics g) {

/*

* 指明子彈-爆炸-坦克的數量

* 以及坦克的生命值

*/

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

g.drawString("explodes count:" + explodes.size(), 10, 70);

g.drawString("tanks count:" + tanks.size(), 10, 90);

g.drawString("tanks life:" + myTank.getLife(), 10, 110);

if(tanks.size() = 0) {

for(int i=0; iInteger.parseInt(PropertyMgr.getProperty("reProduceTankCount")); i++) {

tanks.add(new Tank(50 + 40*(i+1), 50, false, Direction.D, this));

}

}

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

Missile m = missiles.get(i);

m.hitTanks(tanks);

m.hitTank(myTank);

m.hitWall(w1);

m.hitWall(w2);

m.draw(g);

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

//else m.draw(g);

}

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

Explode e = explodes.get(i);

e.draw(g);

}

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

Tank t = tanks.get(i);

t.collidesWithWall(w1);

t.collidesWithWall(w2);

t.collidesWithTanks(tanks);

t.draw(g);

}

myTank.draw(g);

myTank.eat(b);

w1.draw(g);

w2.draw(g);

b.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.BLACK);

gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);

gOffScreen.setColor(c);

paint(gOffScreen);

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

}

/**

* 本方法顯示坦克主窗口

*

*/

public void lauchFrame() {

int initTankCount = Integer.parseInt(PropertyMgr.getProperty("initTankCount"));

for(int i=0; iinitTankCount; i++) {

tanks.add(new Tank(50 + 40*(i+1), 50, false, Direction.D, this));

}

//this.setLocation(400, 300);

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);

}

}

}

java 坦克 打第一輛坦克沒有爆炸效果

你提供的代碼不完全，無法深入分析，但是照你說的有顯示“進入畫圖”，那么，很可能if(g.drawImage(image1, b.x, b.y, 30, 30, this))這個返回值為false，我剛查了下API，它的返回值說明Returns:

false if the image pixels are still changing; true otherwise.另外這個方法有這么樣的說明This method returns immediately in all cases, even if the entire image has not yet been scaled, dithered, and converted for the current output device. If the current output representation is not yet complete, then drawImage returns false. 也就是說，現行輸出未完成，圖像像素仍在變化的時候，你就調用了這方法，那么會返回false。你檢查一下代碼，在你調用這段代碼前，你的初始化工作做好了沒。另外，最好就是像1樓說的，把圖畫到一個bufferImage里，再把bufferImage畫到屏幕上

JAVA 坦克大戰

import?java.awt.*;

import?javax.swing.*;

public?class?Tank?extends?JFrame?{

mypane?mp=null;

Obj[]?objs=new?Obj[0];

public?Tank()?{

setTitle("坦克大戰");

setSize(800,600);

pro();

add(new?mypane(objs));

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setLocationRelativeTo(null);

//在這里添加鍵盤事件、鼠標事件、讓坦克移動，修改objs數組對象讓他們移動

setVisible(true);

}

private?void?pro(){

Obj[]?tmp=new?Obj[objs.length+1];

System.arraycopy(objs,0,tmp,0,objs.length);

tmp[tmp.length-1]=new?Obj(1,1,0,1);

objs=tmp;

int?num=(int)(Math.random()*5)+1;

for(int?i=0;inum;i++){

int?x=(int)(Math.random()*getWidth())+1;

int?y=(int)(Math.random()*getHeight())+1;

int?dir=(int)(Math.random()*4);

Obj[]?dst=new?Obj[objs.length+1];

System.arraycopy(objs,0,dst,0,objs.length);

dst[dst.length-1]=new?Obj(x,y,1,dir);

objs=dst;

}

}

public?static?void?main(String[]?args)?{

new?Tank();

}

}

class?Obj{

int?x,y;//坦克坐標

int?type;

int?dir;

public?Obj(int?x,int?y,int?type,int?dir){

this.x=x;

this.y=y;

this.type=type;

this.dir=dir;

}

}

class?mypane?extends?JPanel{

Obj[]?objs;

public?mypane(Obj[]?objs){

this.objs=objs;

}

public?void?paint(Graphics?g)?{

super.paint(g);

for(int?i=0;iobjs.length;i++){

Obj?obj=objs[i];

drawtank(obj.x,obj.y,?g,?obj.type,?obj.dir);

}

g.dispose();

}

public?void?drawtank(int?x,int?y,Graphics?g,?int?type,int?direct)?{

/*type?為坦克類型，敵方，我方*/

switch(type)?{

case?0://我方坦克，設置為紅色

g.setColor(Color.red);

break;

case?1://敵方坦克，設置為藍色

g.setColor(Color.blue);

break;

}

switch(direct)?{

case?0://坦克方向朝上

g.drawRect(0+x,?0+y,?5,?30);

g.drawRect(5+x,?5+y,?10,20);

g.drawRect(15+x,0+y,?5,30);

g.drawLine(10+x,?15+y,?10+10+x,?15+y);

break;

case?1://坦克方向朝右

g.drawRect(0+x,?0+y,?30,?5);

g.drawRect(5+x,?5+y,?20,?10);

g.drawRect(0+x,?15+y,?30,?5);

g.drawLine(15+x,?10+y,?30+15+x,?10+10+y);

break;

case?2://方向向下

g.drawRect(0+x,?0+y,?5,?30);

g.drawRect(5+x,?5+y,?10,20);

g.drawRect(15+x,0+y,?5,30);

g.drawLine(10+x,?15+y,?10+10+x,?30+15+y);

break;

case?3://方向向左

g.drawRect(0+x,?0+y,?30,?5);

g.drawRect(5+x,?5+y,?20,?10);

g.drawRect(0+x,?15+y,?30,?5);

g.drawLine(15+x,?10+y,?15+x,?10+10+y);

break;

}

}

}

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