[英]How to prevent entry into a while loop if certain conditions are met?
所以我正在写一个玩纸牌游戏的课程。 我已经针对手牌,副牌以及与这些类型一起使用的不同方法(例如,洗牌,发牌和掉牌)制作了单独的类。
/*Using the Card, Deck, and Hand classes from the previous lab, write a main program that will play games of war. The program should
1) Inatantiate a Deck and two Hands
2) Read in n, the number of games of war to play
3) n times,
a) shuffle and deal the deck
b) play a game of war, counting the number of turns, the number of wars, and the number of double wars
4) After all n games have been played, print the average number of turns, average number of wars, and the average number of double wars.
The rules for the game can be found here:
http://www.pagat.com/war/war.html
If a player runs out of cards during a war, use option 1 on that site.
*/
import java.util.Scanner;
public class War {
public static void main (String args [])
{
//Instantiate Deck and two hands
deck Pile = new deck();
hand Player1 = new hand();
hand Player2 = new hand();
Scanner kb = new Scanner (System.in);
int n, turns = 0, wars = 0, dubwars = 0;
System.out.println("Please enter the number of times you would like the game 'war' to be played:");
n = kb.nextInt();
for (int i = 0; i<n; i++)
{
//Game playing code goes here
Pile.shuffle();
Pile.deal(Player1, Player2);
while(Player1.size() != 0 && Player2.size() !=0)
{
Card Card1 = Player1.DropCard();
Card Card2 = Player2.DropCard();
Card P1WarCard = Player1.WarCard(1);//Cards Used in the First War
Card P2WarCard = Player2.WarCard(1);
//if statement saying if the player does not have two cards then exit the program
//Cards Used in the Second War
Card P1DubWarCard = Player1.WarCard(2);
Card P2DubWarCard = Player2.WarCard(2);
//If player 1 has a higher rank, then...
if (Card1.rank > Card2.rank)
{
//Player 1 takes both cards
Player1.add(Card1);
Player1.add(Card2);
turns ++;
}
else if (Card1.rank < Card2.rank)
{
//Player 2 takes both cards
Player2.add(Card2);
Player2.add(Card1);
turns++;
}
else
{
if (Player1.size() <3 || Player2.size() <3)
{
System.exit(0);
}
//War
wars ++;
turns++;
// while (Player1.size() >=2 && Player2.size() >=2)
{
if (P1WarCard.rank > P2WarCard.rank)
{
//Player1.add(Card1);
Player1.add(Card2);
//Player1.add(P1WarCard);
Player1.add(P2WarCard);
//Player 1 takes 4 cards
}
else if (P1WarCard.rank < P2WarCard.rank)
{
//Player2.add(Card2);
Player2.add(Card1);
Player2.add(P1WarCard);
//Player2.add(P2WarCard);
//Player 2 takes 4 cards
}
else
{
if (Player1.size() <3 || Player2.size() <3)
{
System.exit(0);
}
//Dubwar
dubwars++;
turns++;
//while (Player1.size() >=3 && Player2.size() >=3)
{
if (P1DubWarCard.rank > P2DubWarCard.rank)
{
//Player1.add(Card1);
Player1.add(Card2);
//Player1.add(P1WarCard);
Player1.add(P2WarCard);
//Player1.add(P1DubWarCard);
Player1.add(P2DubWarCard);
//Player 1 takes 6 cards
}
else if (P1DubWarCard.rank < P2DubWarCard.rank)
{
//Player2.add(Card2);
Player2.add(Card1);
Player2.add(P1WarCard);
//Player2.add(P2WarCard);
Player2.add(P1DubWarCard);
//Player2.add(P2DubWarCard);
//Player 2 takes 6 cards
}
else
{
System.out.println("NUCLEAR WAR");
break;
}
}
}
}
}
}
}
System.out.println("The average number of turns was " +turns/n);
System.out.println("The average number of wars was " +wars/n);
System.out.println("The average number of double wars was " +dubwars/n);
}
}
我的问题是,如果没有足够的牌来完成双重战争,如何防止进入双重战争? 那时卡组中至少必须有三张卡。
同样,战争卡方法也只是将卡退还到卡座中的那个位置。
这是我的第一次发布,因此如果我做错了事,我深表歉意。
谢谢
克里斯
您始终可以使用boolean
来确定游戏是否正在运行,然后在while循环开始时检查是否仍应将其设置为true
,例如:
boolean isPlaying = true;
while (isPlaying) {
if (numberOfCardsLeft <= cardsNeededToContinue) {
isPlaying = false;
}
//rest of logic here
}
如果任一玩家的牌数较少,您已经在停止参加双重战争
if (Player1.size() <3 || Player2.size() <3)
{
System.exit(0);
}
在代码顶部的站点上:“如果没有足够的卡片来完成战争,那么您将输掉比赛。” 因为不可能永远不会有玩家拥有少于3张牌。 您可以在此处确定获胜者。
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