我认为我的问题很简单。我正在为初学者阅读一本Java书，并决定根据我迄今学到的东西制作一个有趣的小游戏（我主要通过在Objects之前的那一章中的书，原谅我的初学者类型设计）。
我正试图在满足游戏结束条件时让游戏结束。它有点像选择你自己的冒险书......猜错了，你死了......回到第一章。嗯，这是我到目前为止所做的：
import java.util.*;
public class Princess {
/* Generate a random number between (and including) 1 and 2.
* Use this number to set which option is the "good" option this time around.
*/
public static String generateRandom() {
Random random = new Random();
int randomNumber = random.nextInt(2) + 1;
String goodChoice = "option" + randomNumber;
return goodChoice;
}
/* Checks user's choice.
* Does all the heavy lifting for the program.
*/
public static void guessCheck(String message, String option1,
String option2, String badStuff) {
String goodChoice = generateRandom();
System.out.println(message);
Scanner in = new Scanner(System.in);
String userSelection = in.next();
/*Hashmap loading up the options*/
HashMap<String, String> hmap = new HashMap<String, String>();
hmap.put("option1", option1);
hmap.put("option2", option2);
/* Get values based on key (i.e. the first "column" in the hash map) */
String correctChoice = hmap.get(goodChoice);
System.out.println(" *********** Hash Map **************");
System.out.println("value at selected index: " + correctChoice);
/* ********************************************** */
System.out.println("You entered: " + userSelection);
if (!userSelection.equals(hmap.get("option1")) && !userSelection.equals(hmap.get("option2"))) {
//String word = in.next(); // Consumes the invalid input
System.out.println(hmap.get("option1"));
System.out.println(hmap.get("option2"));
System.err.println("What does that mean? Type the correct option!.");
}
else if (userSelection.equals(correctChoice)) {
System.out.println("Good choice! You selected " + correctChoice);
return;
}
else {
System.out.println(badStuff);
return;
}
guessCheck(message, option1, option2, badStuff);
}
// *** Chapter 1 **************************************
/* These chapter methods simply just provide the above guessCheck
* method with the values for the variables it uses.
*/
public static void chapter_1(){
System.out.println("***** Chapter 1 *****");
// Chapter message
String message = "You go through a forest.\n";
message = message + "You see two doors; one on the right, one on the left. \n";
message = message + "Which one do you choose?\n";
// Available options that the user can select.
String option1 = "l"; // Left door
String option2 = "r"; // Right door
// Consequence of choosing the wrong option.
String badStuff = "Wrong choice. You dead.";
// Send these options to guessCheck to do the processing.
guessCheck(message, option1, option2, badStuff);
}
//*****************************************************************************
// *** Chapter 2 **************************************
/* These chapter methods simply just provide the above guessCheck
* method with the values for the variables it uses.
*/
public static void chapter_2(){
System.out.println("***** Chapter 2 *****");
}
//*****************************************************************************
//*** Game Over ***********************************
public static void gameOver(){
System.out.println("Game Over");
}
//*** START ***********************************
public static void main(String[] args) {
chapter_1();
chapter_2();
gameOver();
}
}
答案 0 :(得分：0)
你可以将整个程序包含在while循环中。
public static void main(String[] args) {
while (true) {
if(!chapter_1()) {
continue;
}
if(!chapter_2()) {
continue;
}
// etc.
break; // This is important, once you reach the end of your game, you need to break out!
}
}
并且您需要更改chapter方法以返回boolean，表明是选择了正确的（true）还是错误的（false）选项
但这是非常差的设计，因为有很多重复的代码，特别是一旦你添加了很多章节。
你可以用一个run（）方法或类似的东西创建一个章节：
public class Chapter {
public boolean run();
}
用你想要在章节中做的所有不同的东西覆盖run（）。
然后你可以遍历所有的章节
while (true) {
for (Chapter chapter : chapters) {
if(!chapter.run()) {
continue;
}
}
break;
}
但这仍然不是最伟大的，因为这意味着你的故事非常线性，而且从我记忆中，选择你自己的冒险故事可能会导致你到处跳跃。< / p>
答案 1 :(得分：0)
谢谢大家的帮助。你们都很棒。这就是我到目前为止所拥有的。它工作，不漂亮，但它的工作原理。接下来，我将使用更基于类的设计来转换它：
import java.util.*;
public class Princess {
/* Generate a random number between (and including) 1 and 2.
* Use this number to set which option is the "good" option this time around.
*/
public static String generateRandom() {
Random random = new Random();
int randomNumber = random.nextInt(2) + 1;
String goodChoice = "option" + randomNumber;
return goodChoice;
}
/* Checks user's choice.
* Does all the heavy lifting for the program.
*/
public static Boolean guessCheck(String message, String option1,
String option2, String badStuff) {
String goodChoice = generateRandom();
System.out.println(message);
Scanner in = new Scanner(System.in);
String userSelection = in.next();
/*Hashmap loading up the options*/
HashMap<String, String> hmap = new HashMap<String, String>();
hmap.put("option1", option1);
hmap.put("option2", option2);
/* Get values based on key (i.e. the first "column" in the hash map) */
String correctChoice = hmap.get(goodChoice);
System.out.println(" *********** Hash Map **************");
System.out.println("value at selected index: " + correctChoice);
/* ********************************************** */
System.out.println("You entered: " + userSelection);
if (!userSelection.equals(hmap.get("option1")) && !userSelection.equals(hmap.get("option2"))) {
//String word = in.next(); // Consumes the invalid input
System.out.println(hmap.get("option1"));
System.out.println(hmap.get("option2"));
System.err.println("What does that mean? Type the correct option!.");
}
else if (userSelection.equals(correctChoice)) {
System.out.println("Good choice! You selected " + correctChoice);
return;
}
else {
System.out.println(badStuff);
return;
}
return guessCheck(message, option1, option2, badStuff);
}
// *** Chapter 1 **************************************
/* These chapter methods simply just provide the above guessCheck
* method with the values for the variables it uses.
*/
public static Boolean chapter_1(){
System.out.println("***** Chapter 1 *****");
// Chapter message
String message = "You go through a forest.\n";
message = message + "You see two doors; one on the right, one on the left. \n";
message = message + "Which one do you choose?\n";
// Available options that the user can select.
String option1 = "l"; // Left door
String option2 = "r"; // Right door
// Consequence of choosing the wrong option.
String badStuff = "Wrong choice. You dead.";
// Send these options to guessCheck to do the processing.
return guessCheck(message, option1, option2, badStuff);
}
//*****************************************************************************
// *** Chapter 2 **************************************
/* These chapter methods simply just provide the above guessCheck
* method with the values for the variables it uses.
*/
public static Boolean chapter_2(){
System.out.println("***** Chapter 2 *****");
//Put this chapter's variables and junk here.
}
//*****************************************************************************
//*** START ***********************************
public static void main(String[] args) {
while (true) {
if (!chapter_1()) {
break;
}
if (!chapter_2()) {
break;
}
break;
}
System.out.println("break: Game Over. Do you want to play again?");
}
}