学习的第二个小项目是坦克大战单机版,有机会会将它做成图片版,或者网络版的。
这个单机版经过了26个版本,最终成为一个简单的单机版,大家可以体验一下哦。
tankwar
程序的主窗口 TankClient.java
[code lang="java"]
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 = 600;
public static final int GAME_HEIGHT = 400;

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

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

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

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

Blood b = new Blood();

Image offScreenImage = null;

public void paint(Graphics g) {
//显示相关信息
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("my life : " + myTank.getLife(),10,110);
//画出子弹
for(int i=0;i<missiles.size(); i++){
Missile m = missiles.get(i);
m.hitTanks(tanks);
m.hitTank(myTank);
m.hitWall(w1);
m.hitWall(w2);
m.draw(g);
}
//画出玩家的坦克
if(myTank.isLive()) {
myTank.draw(g);
myTank.eat(b);
}
//画出爆炸
for(int i=0;i<explodes.size();i++){
Explode e = explodes.get(i);
e.draw(g);
}

//画出敌人坦克
if(tanks.size() <=0) {
for(int i=0;i<5;i++){
tanks.add(new Tank(50 + 40*(i+1), 50, false,Tank.Direction.D, this));
}
}

for(int i=0;i<tanks.size();i++){
Tank t = tanks.get(i);
t.hitWall(w1);
t.hitWall(w2);
t.hitTanks(tanks);
if(t.isLive()) t.draw(g);
}

//画出墙
w1.draw(g);
w2.draw(g);

//画出血块
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.green);
gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
gOffScreen.setColor(c);
paint(gOffScreen);
g.drawImage(offScreenImage, 0, 0, null);
}

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

public void LaunchFrame(){
// 添加10个敌方坦克
for(int i=0;i<10;i++){
tanks.add(new Tank(50 + 40*(i+1), 50, false,Tank.Direction.D, this));
}
setLocation(100, 100);
setSize(GAME_WIDTH,GAME_HEIGHT);
setTitle("TankWar");
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
this.setResizable(false);
this.setBackground(Color.green);
addKeyListener(new KeyMonitor());
setVisible(true);

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

private class PaintThread implements Runnable {
public void run() {
while (true) {
repaint();
try {
Thread.sleep(80);
} 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);
}
}
}

[/code]
控制坦克的类Tank.java
[code java="lang"]
import java.awt.*;
import java.awt.event.*;
import java.util.*;

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 int x, y;
private int oldX, oldY;

private boolean needReset = false;

private int life = 100;
private BloodBar bb = new BloodBar();

public void setLife(int life) {
this.life = life;
}

public int getLife() {
return life;
}

TankClient tc;

private boolean good;

private static Random r = new Random();

private boolean live = true;

private int step = r.nextInt(12) + 3;

public boolean isLive() {
return live;
}

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

public boolean isGood(){
return good;
}

public void setGood(boolean good){
this.good = good;
}

enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};
private Direction dir = Direction.STOP;
//炮筒方向
private Direction ptDir = Direction.D;

private boolean bL=false, bU=false,bR=false,bD=false;

public Tank(int x, int y, boolean good) {
this.x = x;
this.y = y;
this.oldX = x;
this.oldY = y;
this.good = good;
}

public Tank(int x, int y, boolean good, Direction dir, TankClient tc){
this(x, y, good);
this.dir = dir;
this.tc = tc;
}

public void draw(Graphics g){
Color c = g.getColor();
if(good) g.setColor(Color.red);
else g.setColor(Color.yellow);
g.fillOval(x, y, WIDTH, HEIGHT);
g.setColor(c);

if(this.isGood()) bb.draw(g);

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(){
this.oldX = x;
this.oldY = y;

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;
}

//只要坦克不是停着的,调整炮筒方向,使之与前进方向一致
if (this.dir != Direction.STOP) {
this.ptDir = this.dir;
}

//避免坦克出界
if(x < 0) x = 0;
if(y < 25 ) y = 25;
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;

//给敌方坦克设定随机方向
if(!good){
Direction[] dirs = Direction.values();
if(step == 0){
step = r.nextInt(12) + 3;
int rn = r.nextInt(dirs.length);
dir = dirs[rn];
}
step --;

//设置敌方坦克发子弹
if(r.nextInt(40) > 38) this.fire();
}
}

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;
case KeyEvent.VK_A :
superFire();
break;
case KeyEvent.VK_B :
if(!this.live) {
this.live = true;
this.life = 100;
}
break;
}

}

public Missile fire(){
if(!live) return null;
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, good, this.tc);
tc.missiles.add(m);
return m;
}

public Missile fire(Direction dir){
if(!live) return null;
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, dir, good, this.tc);
tc.missiles.add(m);
return m;
}

//超级子弹
private void superFire(){
Direction[] dirs = Direction.values();
for(int i=0;i<8;i++){
fire(dirs[i]);
}
}

public Rectangle getRect() {
return new Rectangle(x, y, WIDTH, HEIGHT);
}

private void stayOld(){
x = oldX;
y = oldY;
}

public boolean hitWall(Wall w){
if(this.live && this.getRect().intersects(w.getRect())){
this.stayOld();
return true;
}
return false;
}

public boolean hitTanks(java.util.List<Tank> tanks){
for(int i=0;i<tanks.size();i++){
Tank t = tanks.get(i);
if(this != t){
if(this.live && t.live && this.getRect().intersects(t.getRect())){
this.stayOld();
t.stayOld();
return true;
}
}
}

return false;
}

private class BloodBar{
public void draw(Graphics g){
Color c = g.getColor();
// 先画外面的空心框
g.setColor(Color.red);
g.drawRect(x, y-10, WIDTH, 10);
//画里面的实心框
int w = WIDTH * life/100;
g.fillRect(x, y-10, w, 10);

}
}

public boolean eat(Blood b){
if(this.isLive() && b.isLive() && this.getRect().intersects(b.getRect())){
this.life = 100;
b.setLive(false);
return true;
}
return false;
}

}
[/code]
控制子弹的类Missile.java
[code lang="java"]
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 TankClient tc;

private boolean live = true ;

private boolean good;

public boolean isLive() {
return live;
}

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

public Missile(int x, int y, Tank.Direction dir) {
super();
this.x = x;
this.y = y;
this.dir = dir;
}

public Missile(int x, int y, Tank.Direction dir, boolean good, TankClient tc){
this(x, y, dir);
this.good = good;
this.tc = tc ;
}

public void draw(Graphics g) {
if(!live) {
tc.missiles.remove(this);
return;
}
Color c = g.getColor();
if(this.good) g.setColor(Color.red);
else g.setColor(Color.yellow);
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;
case STOP:
break;
}

if(x < 0 || y < 0 || x > TankClient.GAME_WIDTH || y > TankClient.GAME_HEIGHT){
live = false;
tc.missiles.remove(this);
}
}

public Rectangle getRect() {
return new Rectangle(x, y, WIDTH, HEIGHT);
}

public boolean hitTank(Tank t){
//子弹击中目标坦克
if(this.getRect().intersects(t.getRect()) && (t.isLive()) && this.good != t.isGood()){
if(t.isGood()) {
t.setLife(t.getLife() -20);
if(t.getLife() <= 0) {
t.setLive(false);
t.setLive(false);
}
}
this.live = false;
tc.missiles.remove(this);
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))){
tanks.get(i).setLive(false);
tanks.remove(i);
return true;
}
}
return false;
}

public boolean hitWall(Wall w){
if(this.live && this.getRect().intersects(w.getRect())){
this.live = false;
return true;
}
return false;
}
}
[/code]
控制爆炸的类Explode.java
[code lang="java"]
import java.awt.*;

public class Explode {
int x, y;
private boolean live = true;
int[] diameter = {2, 6, 13, 18, 25, 16, 10, 6};
int step = 0;

private TankClient tc;

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.white);
g.fillOval(x, y, diameter[step], diameter[step]);
g.setColor(c);

step ++;
}
}
[/code]
显示玩家坦克生命值的类Blood.java
[code lang="java"]
import java.awt.*;

public class Blood {
int x, y, w, h;
TankClient tc;
boolean live = true ;

public boolean isLive() {
return live;
}

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

private int[][] pos = {{50, 360}, {70, 360}, {90, 360}, {110, 380}, {130, 320}, {150, 250}, {170, 200}};

int step = 0;

public Blood(){
x = pos[0][0];
y = pos[0][1];
w = h = 15 ;
}

public void draw(Graphics g){
if(!isLive()) return;

Color c = g.getColor();
g.setColor(Color.magenta);
g.fillRect(x, y, w, h);
g.setColor(c);

move();

}

private void move(){
step ++;
if(step == pos.length){
step = 0;
}
x = pos[step][0];
y = pos[step][1];
}

public Rectangle getRect(){
return new Rectangle(x, y, w, h);
}
}
[/code]
显示障碍物的类Wall.java
[code lang="java"]
import java.awt.*;

public class Wall {
int x, y, w, h;
TankClient tc;

public Wall(int x, int y, int w, int h, TankClient tc){
this.x = x;
this.y = y;
this.w = w;
this.h = h;
this.tc = tc;
}

public void draw(Graphics g) {
Color c = g.getColor();
g.setColor(Color.black);
g.fillRect(x, y, w, h);
g.setColor(c);
}

public Rectangle getRect() {
return new Rectangle(x, y, w, h);
}
}
[/code]

分类: Java

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