castle-城堡游戏
高玮
package castle_test;
import java.util.*;
public class Room {
private String description;
private HashMap<String,Room> exits = new HashMap<String,Room>();
public Room(String description) {
this.description = description;
}
public void setExit(String dir,Room room) {
exits.put(dir, room);
}
public String toString() {
return description;
}
public String getExitDesc() {
StringBuffer sb = new StringBuffer();
for(String dir:exits.keySet()) {
sb.append(dir);
sb.append(" ");
}
return sb.toString();
}
public Room getExit(String direction) {
return exits.get(direction);
}
}
Room类
下面是Game类：
package castle_test;
import java.util.*;
public class Game {
private Room currentRoom;
public Game() {
creatRooms();
}
public void creatRooms() {
Room outside,lobby,pub,study,bedroom;
outside = new Room("城堡外");
lobby = new Room("大堂");
pub = new Room("小酒吧");
study = new Room("书房");
bedroom = new Room("卧室");
outside.setExit("east", lobby);
outside.setExit("south", study);
outside.setExit("west", pub);
lobby.setExit("west", outside);
pub.setExit("east",outside);
study.setExit("north",outside);
study.setExit("east",bedroom);
bedroom.setExit("west", study);
lobby.setExit("up", pub);
pub.setExit("down",lobby);
currentRoom = outside;
}
public void printWelcome() {
System.out.println();
System.out.println("欢迎来到城堡！");
System.out.println("这是一个超级无聊的游戏。");
System.out.println("如果需要帮助，请输入‘help’。");
System.out.println();
showPrompt();
}
private void printHelp() {
System.out.print("迷路了吗？你可以做的命令有：go bye help");
System.out.println("如：\tgo east");
}
private void goRoom(String direction) {
Room nextRoom= currentRoom.getExit(direction);
if(nextRoom==null) {
System.out.println("那里没有门！");
}
else {
currentRoom= nextRoom;
showPrompt();
}
}
public void showPrompt() {
System.out.println("你在"+currentRoom);
System.out.println("出口有：");
System.out.println(currentRoom.getExitDesc());
System.out.println();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in = new Scanner(System.in);
Game game = new Game();
game.printWelcome();
while(true) {
String line = in.nextLine();
String[] words = line.split(" ");
if(words[0].equals("help")) {
game.printHelp();
}
else if(words[0].equals("go")) {
game.goRoom(words[1]);
}
else if(words[0].equals("bye")) {
break;
}
}
System.out.println("感谢您的光临。再见！");
in.close();
}
}
欢迎来到城堡！
这是一个超级无聊的游戏。
如果需要帮助，请输入‘help’。
你在城堡外
出口有：
east south west
help
迷路了吗？你可以做的命令有：go bye help如： go east
go east
你在大堂
出口有：
west up
go up
你在小酒吧
出口有：
east down
go down
你在大堂
出口有：
west up
bye
感谢您的光临。再见！程序的封装、可扩展性。
修改其可扩展性，可以扩展生成其他指令：
package castle_test;
import java.util.*;
public class Room {
private String description;
private HashMap<String,Room> exits = new HashMap<String,Room>();
public Room(String description) {
this.description = description;
}
public void setExit(String dir,Room room) {
exits.put(dir, room);
}
public String toString() {
return description;
}
public String getExitDesc() {
StringBuffer sb = new StringBuffer();
for(String dir:exits.keySet()) {
sb.append(dir);
sb.append(" ");
}
return sb.toString();
}
public Room getExit(String direction) {
return exits.get(direction);
}
}package castle_test;
public class Handler {
protected Game game;
public Handler(Game game) {
this.game = game;
}
public void doCmd(String word) {
}
public boolean isBye() {
return false;
}
}
package castle_test;
public class HandlerHelp extends Handler{
public HandlerHelp(Game game) {
super(game);
}
@Override
public void doCmd(String word) {
System.out.print("迷路了吗？你可以做的命令有：go bye help");
System.out.println("如：\tgo east");
}
}package castle_test;
public class HandlerGo extends Handler{
public HandlerGo(Game game) {
super(game);
}
@Override
public void doCmd(String word) {
// TODO Auto-generated method stub
game.goRoom(word);
}
}
package castle_test;
public class HandlerBye extends Handler{
public HandlerBye(Game game) {
super(game);
// TODO Auto-generated constructor stub
}
@Override
public boolean isBye() {
return true;
}
}package castle_test;
import java.util.*;
public class Game {
private Room currentRoom;
private HashMap<String, Handler> handlers = new HashMap<String, Handler>();
public Game() {
handlers.put("go",new HandlerGo(this));
handlers.put("bye", new HandlerBye(this));
handlers.put("help", new HandlerHelp(this));
creatRooms();
}
public void creatRooms() {
Room outside,lobby,pub,study,bedroom;
outside = new Room("城堡外");
lobby = new Room("大堂");
pub = new Room("小酒吧");
study = new Room("书房");
bedroom = new Room("卧室");
outside.setExit("east", lobby);
outside.setExit("south", study);
outside.setExit("west", pub);
lobby.setExit("west", outside);
pub.setExit("east",outside);
study.setExit("north",outside);
study.setExit("east",bedroom);
bedroom.setExit("west", study);
lobby.setExit("up", pub);
pub.setExit("down",lobby);
currentRoom = outside;
}
public void play() {
Scanner in = new Scanner(System.in);
while(true) {
String line = in.nextLine();
String[] words = line.split(" ");
Handler handler = handlers.get(words[0]);
String value = "";
if(words.length>1) {
value= words[1];
}
if(handler != null) {
handler.doCmd(value);
if(handler.isBye())
break;
}
}
}
public void printWelcome() {
System.out.println();
System.out.println("欢迎来到城堡！");
System.out.println("这是一个超级无聊的游戏。");
System.out.println("如果需要帮助，请输入‘help’。");
System.out.println();
showPrompt();
}
public void goRoom(String direction) {
Room nextRoom= currentRoom.getExit(direction);
if(nextRoom==null) {
System.out.println("那里没有门！");
}
else {
currentRoom= nextRoom;
showPrompt();
}
}
public void showPrompt() {
System.out.println("你在"+currentRoom);
System.out.println("出口有：");
System.out.println(currentRoom.getExitDesc());
System.out.println();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Game game = new Game();
game.printWelcome();
game.play();
System.out.println("感谢您的光临。再见！");
}
}运行结果：
欢迎来到城堡！
这是一个超级无聊的游戏。
如果需要帮助，请输入‘help’。
你在城堡外
出口有：
east south west
help
迷路了吗？你可以做的命令有：go bye help如： go east
go east
你在大堂
出口有：
west up
go up
你在小酒吧
出口有：
east down
go east
你在城堡外
出口有：
east south west
go south
你在书房
出口有：
east north
bye
感谢您的光临。再见！
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