Java坦克大戰網絡版
不足之處
Server不夠高效....需要看更多書去學習
協議不夠精細
TankNewMsg TankAreadyExistMsg
子彈打中坦克后可否只發送一個消息
tankId id 被打中的tankId
同步線程
坦克退出后的服務器端處理.....另起端口管理跟命令相關之處，命令與數據分開
一段時間沒有接收到數據后的處理
更加精細的內存控制
TankServer
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.List; public class TankServer {
private static int ID = 100;
public static final int TCP_PORT = 8888;
public static final int UDP_PORT = 6666;
List clients = new ArrayList();
public void start() {
new Thread(new UDPThread()).start();
ServerSocket ss = null;
try {
ss = new ServerSocket(TCP_PORT);
} catch (IOException e) {
e.printStackTrace();
}
while(true) {
Socket s = null;
try {
s = ss.accept();
DataInputStream dis = new DataInputStream(s.getInputStream());
String IP = s.getInetAddress().getHostAddress();
int udpPort = dis.readInt();
Client c = new Client(IP, udpPort);
clients.add(c);
DataOutputStream dos = new DataOutputStream(s.getOutputStream());
dos.writeInt(ID++);
//s.close();
System.out.println("A Client Connect! Addr- " + s.getInetAddress() + ":" + s.getPort() + "----UDP Port:" + udpPort);
} catch (IOException e) {
e.printStackTrace();
} finally {
if(s != null) {
try {
s.close();
s = null;
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
public static void main(String[] args) {
new TankServer().start();
}
private class Client {
String IP;
int udpPort;
public Client(String IP, int udpPort) {
this.IP = IP;
this.udpPort = udpPort;
}
}
private class UDPThread implements Runnable {
byte[] buf = new byte[1024];
public void run() {
DatagramSocket ds = null;
try {
ds = new DatagramSocket(UDP_PORT);
} catch (SocketException e) {
e.printStackTrace();
}
System.out.println("UDP thread started at port :" + UDP_PORT);
while(ds != null){
DatagramPacket dp = new DatagramPacket(buf, buf.length);
try {
ds.receive(dp);
for(int i=0; i TankClient
import java.awt.Button;
import java.awt.Color;
import java.awt.Dialog;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
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;
public static final int GAME_HEIGHT = 600;
Tank myTank = new Tank(50, 50, true, Dir.STOP, this);
List missiles = new ArrayList();
List explodes = new ArrayList();
List tanks = new ArrayList();
Image offScreenImage = null;
NetClient nc = new NetClient(this);
ConnDialog dialog = new ConnDialog();
@Override
public void paint(Graphics g) {
g.drawString("missiles count:" + missiles.size(), 10, 50);
g.drawString("explodes count:" + explodes.size(), 10, 70);
g.drawString("tanks count:" + tanks.size(), 10, 90);
for(int i=0; i
NetClient
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
public class NetClient {
TankClient tc;
private int udpPort;
String IP; //server IP
DatagramSocket ds = null;
public NetClient(TankClient tc) {
this.tc = tc;
}
public void connect(String IP, int port) {
this.IP = IP;
try {
ds = new DatagramSocket(udpPort);
} catch (SocketException e) {
e.printStackTrace();
}
Socket s = null;
try {
s = new Socket(IP, port);
DataOutputStream dos = new DataOutputStream(s.getOutputStream());
dos.writeInt(udpPort);
DataInputStream dis = new DataInputStream(s.getInputStream());
int id = dis.readInt();
tc.myTank.id = id;
if(id%2 == 0) tc.myTank.good = false;
else tc.myTank.good = true;
System.out.println("Connected to server! and server give me a ID:" + id);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(s != null) {
try {
s.close();
s = null;
} catch (IOException e) {
e.printStackTrace();
}
}
}
TankNewMsg msg = new TankNewMsg(tc.myTank);
send(msg);
new Thread(new UDPRecvThread()).start();
}
public void send(Msg msg) {
msg.send(ds, IP, TankServer.UDP_PORT);
}
private class UDPRecvThread implements Runnable {
byte[] buf = new byte[1024];
public void run() {
while(ds != null){
DatagramPacket dp = new DatagramPacket(buf, buf.length);
try {
ds.receive(dp);
parse(dp);
System.out.println("a packet received from server!");
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void parse(DatagramPacket dp) {
ByteArrayInputStream bais = new ByteArrayInputStream(buf, 0, dp.getLength());
DataInputStream dis = new DataInputStream(bais);
int msgType = 0;
try {
msgType = dis.readInt();
} catch (IOException e) {
e.printStackTrace();
}
Msg msg = null;
switch (msgType) {
case Msg.TANK_NEW_MSG:
msg = new TankNewMsg(NetClient.this.tc);
msg.parse(dis);
break;
case Msg.TANK_MOVE_MSG:
msg = new TankMoveMsg(NetClient.this.tc);
msg.parse(dis);
break;
case Msg.MISSILE_NEW_MSG:
msg = new MissileNewMsg(NetClient.this.tc);
msg.parse(dis);
break;
case Msg.TANK_DEAD_MSG:
msg = new TankDeadMsg(NetClient.this.tc);
msg.parse(dis);
break;
case Msg.MISSILE_DEAD_MSG:
msg = new MissileDeadMsg(NetClient.this.tc);
msg.parse(dis);
break;
}
}
}
public int getUdpPort() {
return udpPort;
}
public void setUdpPort(int udpPort) {
this.udpPort = udpPort;
}
}Msg接口
import java.io.DataInputStream;
import java.net.DatagramSocket;
public interface Msg {
public static final int TANK_NEW_MSG = 1;
public static final int TANK_MOVE_MSG = 2;
public static final int MISSILE_NEW_MSG = 3;
public static final int TANK_DEAD_MSG = 4;
public static final int MISSILE_DEAD_MSG = 5;
public void send(DatagramSocket ds, String IP, int udpPort);
public void parse(DataInputStream dis);
}TankNewMsg
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
public class TankNewMsg implements Msg {
int msgType = Msg.TANK_NEW_MSG;
Tank tank;
TankClient tc;
public TankNewMsg(Tank tank) {
this.tank = tank;
}
public TankNewMsg(TankClient tc) {
this.tc = tc;
}
public void send(DatagramSocket ds, String IP, int udpPort) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
try {
dos.writeInt(msgType);
dos.writeInt(tank.id);
dos.writeInt(tank.x);
dos.writeInt(tank.y);
dos.writeInt(tank.dir.ordinal());
dos.writeBoolean(tank.good);
} catch (IOException e) {
e.printStackTrace();
}
byte[] buf = baos.toByteArray();
try {
DatagramPacket dp = new DatagramPacket(buf, buf.length, new InetSocketAddress(IP, udpPort));
ds.send(dp);
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void parse(DataInputStream dis) {
try {
int id = dis.readInt();
if(tc.myTank.id == id) {
return;
}
int x = dis.readInt();
int y = dis.readInt();
Dir dir = Dir.values()[dis.readInt()];
boolean good = dis.readBoolean();
//System.out.println("id:" + id + "-x:" + x + "-y:" + y + "-dir:" + dir + "-good:" + good);
boolean exist = false;
for(int i=0; iTankMoveMsg
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
public class TankMoveMsg implements Msg {
int msgType = Msg.TANK_MOVE_MSG;
int x, y;
int id;
Dir ptDir;
Dir dir;
TankClient tc;
public TankMoveMsg(int id,int x, int y, Dir dir, Dir ptDir) {
this.id = id;
this.x = x;
this.y = y;
this.dir = dir;
this.ptDir = ptDir;
}
public TankMoveMsg(TankClient tc) {
this.tc = tc;
}
public void parse(DataInputStream dis) {
try {
int id = dis.readInt();
if(tc.myTank.id == id) {
return;
}
int x = dis.readInt();
int y = dis.readInt();
Dir dir = Dir.values()[dis.readInt()];
Dir ptDir = Dir.values()[dis.readInt()];
//System.out.println("id:" + id + "-x:" + x + "-y:" + y + "-dir:" + dir + "-good:" + good);
boolean exist = false;
for(int i=0; iTankDeadMsg
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
public class TankDeadMsg implements Msg {
int msgType = Msg.TANK_DEAD_MSG;
TankClient tc;
int id;
public TankDeadMsg(int id) {
this.id = id;
}
public TankDeadMsg(TankClient tc) {
this.tc = tc;
}
public void parse(DataInputStream dis) {
try {
int id = dis.readInt();
if(tc.myTank.id == id) {
return;
}
//System.out.println("id:" + id + "-x:" + x + "-y:" + y + "-dir:" + dir + "-good:" + good);
for(int i=0; iTank
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
import java.util.Random;
public class Tank {
int id;
public static final int XSPEED = 5;
public static final int YSPEED = 5;
public static final int WIDTH = 30;
public static final int HEIGHT = 30;
boolean good;
int x, y;
private static Random r = new Random();
private boolean live = true;
private int step = r.nextInt(12) + 3;
TankClient tc;
boolean bL, bU, bR, bD;
Dir dir = Dir.STOP;
Dir ptDir = Dir.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, Dir dir, TankClient tc) {
this(x, y, good);
this.dir = dir;
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.drawString("id:" + id, x, y-10);
g.setColor(c);
switch(ptDir) {
case L:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x, y + HEIGHT/2);
break;
case LU:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x, y);
break;
case U:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x + WIDTH/2, y);
break;
case RU:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x + WIDTH, y);
break;
case R:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x + WIDTH, y + HEIGHT/2);
break;
case RD:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x + WIDTH, y + HEIGHT);
break;
case D:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x + WIDTH/2, y + HEIGHT);
break;
case LD:
g.drawLine(x + WIDTH/2, y + HEIGHT/2, x, y + HEIGHT);
break;
}
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(dir != Dir.STOP) {
ptDir = dir;
}
if(x < 0) x = 0;
if(y < 30) y = 30;
if(x + WIDTH > TankClient.GAME_WIDTH) x = TankClient.GAME_WIDTH - WIDTH;
if(y + HEIGHT > TankClient.GAME_HEIGHT) y = TankClient.GAME_HEIGHT - HEIGHT;
/*if(!good) {
if(step == 0) {
step = r.nextInt(12) + 3;
Dir[] dirs = Dir.values();
dir = dirs[r.nextInt(dirs.length)];
}
step --;
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();
}
private void locateDirection() {
Dir oldDir = this.dir;
if(bL && !bU && !bR && !bD) dir = Dir.L;
else if(bL && bU && !bR && !bD) dir = Dir.LU;
else if(!bL && bU && !bR && !bD) dir = Dir.U;
else if(!bL && bU && bR && !bD) dir = Dir.RU;
else if(!bL && !bU && bR && !bD) dir = Dir.R;
else if(!bL && !bU && bR && bD) dir = Dir.RD;
else if(!bL && !bU && !bR && bD) dir = Dir.D;
else if(bL && !bU && !bR && bD) dir = Dir.LD;
else if(!bL && !bU && !bR && !bD) dir = Dir.STOP;
if(dir != oldDir) {
TankMoveMsg msg = new TankMoveMsg(id, x, y, dir, ptDir);
tc.nc.send(msg);
}
}
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();
}
private Missile fire() {
if(!live)
return null;
int x = this.x + WIDTH/2 - Missile.WIDTH/2;
int y = this.y + HEIGHT/2 - Missile.HEIGHT/2;
Missile m = new Missile(id, x, y, this.good, this.ptDir, this.tc);
tc.missiles.add(m);
MissileNewMsg msg = new MissileNewMsg(m);
tc.nc.send(msg);
return m;
}
public Rectangle getRect() {
return new Rectangle(x, y, WIDTH, HEIGHT);
}
public boolean isLive() {
return live;
}
public void setLive(boolean live) {
this.live = live;
}
}Missile
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
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;
private static int ID = 1;
TankClient tc;
int tankId;
int id;
int x, y;
Dir dir = Dir.R;
boolean live = true;
boolean good;
public Missile(int tankId, int x, int y, boolean good, Dir dir) {
this.tankId = tankId;
this.x = x;
this.y = y;
this.good = good;
this.dir = dir;
this.id = ID++;
}
public Missile(int tankId, int x, int y, boolean good, Dir dir, TankClient tc) {
this(tankId, x, y, good, 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;
case STOP:
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.live && t.isLive() && this.good != t.good &&this.getRect().intersects(t.getRect())) {
this.live = false;
t.setLive(false);
tc.explodes.add(new Explode(x, y, tc));
return true;
}
return false;
}
public boolean hitTanks(List tanks) {
for(int i=0; iMissileNewMsg
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
public class MissileNewMsg implements Msg {
int msgType = Msg.MISSILE_NEW_MSG;
TankClient tc;
Missile m;
public MissileNewMsg(Missile m) {
this.m = m;
}
public MissileNewMsg(TankClient tc) {
this.tc = tc;
}
public void send(DatagramSocket ds, String IP, int udpPort) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
try {
dos.writeInt(msgType);
dos.writeInt(m.tankId);
dos.writeInt(m.id);
dos.writeInt(m.x);
dos.writeInt(m.y);
dos.writeInt(m.dir.ordinal());
dos.writeBoolean(m.good);
} catch (IOException e) {
e.printStackTrace();
}
byte[] buf = baos.toByteArray();
try {
DatagramPacket dp = new DatagramPacket(buf, buf.length, new InetSocketAddress(IP, udpPort));
ds.send(dp);
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void parse(DataInputStream dis) {
try {
int tankId = dis.readInt();
if(tankId == tc.myTank.id) {
return;
}
int id = dis.readInt();
int x = dis.readInt();
int y = dis.readInt();
Dir dir = Dir.values()[dis.readInt()];
boolean good = dis.readBoolean();
//System.out.println("id:" + id + "-x:" + x + "-y:" + y + "-dir:" + dir + "-good:" + good);
Missile m = new Missile(tankId, x, y, good, dir, tc);
m.id = id;
tc.missiles.add(m);
} catch (IOException e) {
e.printStackTrace();
}
}
}MissileDeadMsg
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
public class MissileDeadMsg implements Msg {
int msgType = Msg.MISSILE_DEAD_MSG;
TankClient tc;
int tankId;
int id;
public MissileDeadMsg(int tankId, int id) {
this.tankId = tankId;
this.id = id;
}
public MissileDeadMsg(TankClient tc) {
this.tc = tc;
}
public void parse(DataInputStream dis) {
try {
int tankId = dis.readInt();
int id = dis.readInt();
//System.out.println("id:" + id + "-x:" + x + "-y:" + y + "-dir:" + dir + "-good:" + good);
for(int i=0; iExplode
import java.awt.Color;
import java.awt.Graphics;
public class Explode {
int x, y;
private int[] diameters = {4, 7, 12, 18, 26, 32, 49, 30, 14, 6};
private boolean live = true;
private TankClient tc;
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;
}
Color c = g.getColor();
g.setColor(Color.ORANGE);
g.fillOval(x, y, diameters[step], diameters[step]);
g.setColor(c);
step ++;
if(step == diameters.length) {
live = false;
}
}
}Dir
public enum Dir {
L, LU, U, RU, R, RD, D, LD, STOP
} 
轉自：http://blog.csdn.net/slience_perseverance/article/details/7844993
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