A. 扑克发牌算法是棋牌游戏中常用的基础算法,也是游戏开发人员需要熟悉的基础算法之一。下面介绍一下该算法的一种实现方式。
首先给扑克牌中每张牌设定一个编号,下面算法实现的编号规则如下:
u 红桃按照从小到大依次为:1-13
u 方块按照从小到大依次为:14-26
u 黑桃按照从小到大依次为:27-39
u 梅花按照从小到大依次为:40-52
u 小王为53,大王为54
算法实现如下:
u 首先按照以上编号规则初始化一个包含108个数字的数组
u 每次随机从该数组中抽取一个数字,分配给保存玩家数据的数组
实现该功能的代码如下所示:
import Java.util.*;
/**
* 发牌算法的实现
* 要求:把2副牌,也就是108张,发给4个人,留6张底牌
*/
public class Exec{
public static void main(String[] args){
//存储108张牌的数组
int[] total = new int[108];
//存储四个玩家的牌
int[][] player = new int[4][25];
//存储当前剩余牌的数量
int leftNum = 108;
//随机数字
int ranNumber;
//随机对象
Random random = new Random();
//初始化数组
for(int i = 0;i < total.length;i++){
total[i] = (i + 1) % 54;
//处理大小王编号
if(total[i] == 0){
total[i] = 54;
}
}
//循环发牌
for(int i = 0;i < 25;i++){
//为每个人发牌
for(int j = 0;j < player.length;j++){
//生成随机下标
ranNumber = random.nextInt(leftNum);
//发牌
player[j][i] = total[ranNumber];
//移动已经发过的牌
total[ranNumber] = total[leftNum - 1];
//可发牌的数量减少1
leftNum--;
}
}
//循环输出玩家手中的牌
for(int i = 0;i < player.length;i++){
for(int j = 0;j < player[i].length;j++){
System.out.print(" " + player[i][j]);
}
System.out.println();
}
//底牌
for(int i = 0;i < 8;i++){
System.out.print(" " + total[i]);
}
System.out.println();
}
}
B.利用Random类的对象的链表中一随机的顺序存储一副52张的纸牌。用含有连个字符的字符串代表纸牌,例如“1C”表示梅花A,”JD”表示方片J等。从栈中输出4手牌,每手牌有13张纸牌。
package com.tengfei.lesson06;
import java.util.Vector;
import java.util.LinkedList;
import java.util.Random;
import java.util.ListIterator;
public class DealCards {
public static void main(String[] args) {
String[] suits = {"C", "D", "H", "S"};
String[] cardValues = { "1","2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};
int cardsInDeck = 52;
Vector<String> deck = new Vector<String>(cardsInDeck);
LinkedList<String> shuffledDeck = new LinkedList<String>();
Random chooser = new Random(); // Card chooser
// Load the deck
for(String suit : suits) {
for(String cardValue : cardValues) {
deck.add(cardValue+suit);
}
}
// Select cards at random from the deck to transfer to shuffled deck
int selection = 0; // Selected card index
for(int i = 0 ; i<cardsInDeck ; i++) {
selection = chooser.nextInt(deck.size());
shuffledDeck.add(deck.remove(selection));
}
// Deal the cards from the shuffled deck into four hands
StringBuffer[] hands = { new StringBuffer("Hand 1:"), new StringBuffer("Hand 2:"),
new StringBuffer("Hand 3:"), new StringBuffer("Hand 4:")};
ListIterator cards = shuffledDeck.listIterator();
while(cards.hasNext()) {
for(StringBuffer hand : hands) {
hand.append(' ').append((String)(cards.next()));
}
}
// Display the hands
for(StringBuffer hand : hands) {
System.out.println(hand.toString());
}
}
}
C.斗地主简单发牌。
import java.util.*;
public class Dou {
/*
* 生成扑克牌
*/
public String[] puke() {
String[] s1 = { "黑桃", "红桃", "梅花", "方片" };
String[] s2 = { "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J",
"Q", "K" };
String[] s3 = { "小王", "大王" };
String[] s4 = new String[54];
s4[52] = s3[0];
s4[53] = s3[1];
for (int i = 0; i < 52; i++) {
s4[i] = s1[i % 4] + s2[i / 4];
}
return s4;
}
/*
* 洗牌
*/
public String[] wash(String[] s2) {
// Dou dou = new Dou();
// String s2[] = dou.puke();
for (int i = 0; i < 100; i++) {
String k;
Random ran = new Random();
int ran1 = ran.nextInt(54);
int ran2 = ran.nextInt(54);
// 随机两张牌交换实现洗牌
k = s2[ran1];
s2[ran1] = s2[ran2];
s2[ran2] = k;
}
return s2;
}
/*
* 斗地主发牌
*/
public String[] check(String[] s1) {
// Dou dou = new Dou();
// String s1[] = dou.wash();
for (int i = 0; i < 54; i++) {
if (i % 17 == 0) {
System.out.println("");
int k = i / 17 + 1;
if (k == 4)
System.out.print("底牌:" + "/t");
else
System.out.print("玩家" + k + ":" + "/t");
}
System.out.print(s1[i] + "/t");
}
return s1;
}
/*
*
* @main
*/
public static void main(String[] args) {
Dou dou = new Dou();
//String[] s1= dou.check();
dou.check(dou.wash(dou.puke()));//相当于下面三句
// String[] s1=dou.puke();
// String[] s2= dou.wash(s1);
// dou.check(s2);
}
}