尝试用Java创建一个Blackjack游戏,无法理解如何从数组中获取数值。
这是我的牌组代码:
//Represent a playing card
public class Card
{
//Instance variables:
int suit; //0=clubs, 1=diamonds, 2=hearts, 3=spades
int rank; //1=ace, 2=2,..., 10=10, 11=J, 12=Q, 13=K
//Constructor:
public Card (int theSuit, int theRank)
{
suit = theSuit;
rank = theRank;
}
//Print the card in a human-readable form:
public void printCard()
{
String[] suits = {"Clubs", "Diamonds", "Hearts", "Spades"};
String[] ranks = {"narf", "Ace", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "Jack", "Queen", "King"};
System.out.print(ranks[rank] + " of " + suits[suit]);
}
}
参见我使用的Card cardOne = deck.cards [(int)(Math.random()* 52)];获得玩家看到的第一张和第二张牌,但是我很难弄清楚如何保存卡片的价值(4张4张心脏,10张黑桃杰克等等)一个整数值,用于确定玩家有多少分?
抱歉,如果这令人困惑,英语不是我的第一语言。
提前致谢!
-John
答案 0 :(得分:0)
如果你有一个0到51之间的整数n
,你可以将它转换为0-3和0-12范围内的两个数字,如下所示:
suit = n / 13; // will be in range 0 to 3
rank = n % 13; // will be in range 0 to 12
或
rank = n / 4; // will be in range 0 to 12
suit = n % 4; // will be in range 0 to 3
除非您计划使用n
做其他事情,否则您选择哪一项并不重要。如果您打算使用n
代表卡片,那么您必须决定是否要将该订单设为俱乐部王牌,钻石王牌,心脏王牌,锹王牌,俱乐部-2 ,钻石-2等......或者俱乐部 - 王牌,俱乐部-2,俱乐部-3,俱乐部-4 ......俱乐部国王,钻石王牌,钻石-2,......
答案 1 :(得分:0)
只需创建一个int[]
数组,其中包含索引与ranks
数组对齐的点值。
String[] ranks = {"narf", "Ace", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "Jack", "Queen", "King"};
int[] points = {0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 10, 10, 10};
然后,当您的随机数生成int
值(让我们称之为index
)时,您可以这样做:
String rank = ranks[index];
int numberOfPoints = points[index];