斗地主

package dapai;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;

/*
斗地主综合案例:有序版本
1.准备牌
2.洗牌
3.发牌
4.排序
5.看牌
*/
public class DouDiZhu {
public static void main(String[] args) {
//1.准备牌
//创建一个Map集合,存储牌的索引和组装好的牌
HashMap<Integer,String> poker = new HashMap<>();
//创建一个List集合,存储牌的索引
ArrayList pokerIndex = new ArrayList<>();
//定义两个集合,存储花色和牌的序号
// List colors = List.of("♠", "♥", "♣", "♦");
// List numbers = List.of("2", "A", "K", "Q", "J", "10", "9", "8", "7", "6", "5", "4", "3");
String[] numbers = {"2","3","4","5","6","7","8","9","10","j","q","k","a"};
String[] colors = {"MEIHUA","FANGKUAI","AIXING","HEITAO"};
//把大王和小王存储到集合中
//定义一个牌的索引
int index = 0;
poker.put(index,"大王");
pokerIndex.add(index);
index++;
poker.put(index,"小王");
pokerIndex.add(index);
index++;
//循环嵌套遍历两个集合,组装52张牌,存储到集合中
for (String number : numbers) {
for (String color : colors) {
poker.put(index,color+number);
pokerIndex.add(index);
index++;
}
}
//System.out.println(poker);
//System.out.println(pokerIndex);

    /*
        2.洗牌
        使用Collections中的方法shuffle(List)
     */
    Collections.shuffle(pokerIndex);
    //System.out.println(pokerIndex);

    /*
        3.发牌
     */
    //定义4个集合,存储玩家牌的索引,和底牌的索引
    ArrayList<Integer> player01 = new ArrayList<>();
    ArrayList<Integer> player02 = new ArrayList<>();
    ArrayList<Integer> player03 = new ArrayList<>();
    ArrayList<Integer> diPai = new ArrayList<>();
    //遍历存储牌索引的List集合,获取每一个牌的索引
    for (int i = 0; i <pokerIndex.size() ; i++) {
        Integer in = pokerIndex.get(i);
        //先判断底牌
        if(i>=51){
            //给底牌发牌
            diPai.add(in);
        }else if(i%3==0){
            //给玩家1发牌
            player01.add(in);
        }else if(i%3==1){
            //给玩家2发牌
            player02.add(in);
        }else if(i%3==2){
            //给玩家3发牌
            player03.add(in);
        }
    }

    /*
        4.排序
        使用Collections中的方法sort(List)
        默认是升序排序
     */
    Collections.sort(player01);
    Collections.sort(player02);
    Collections.sort(player03);
    Collections.sort(diPai);

    /*
        5.看牌
        调用看牌的方法
     */
    lookPoker("刘德华",poker,player01);
    lookPoker("周润发",poker,player02);
    lookPoker("周星驰",poker,player03);
    lookPoker("底牌",poker,diPai);
}

/*
    定义一个看牌的方法,提高代码的复用性
    参数:
        String name:玩家名称
        HashMap<Integer,String> poker:存储牌的poker集合
        ArrayList<Integer> list:存储玩家和底牌的List集合
    查表法:
         遍历玩家或者底牌集合,获取牌的索引
         使用牌的索引,去Map集合中,找到对应的牌
 */
public static void lookPoker(String name,HashMap<Integer,String> poker,ArrayList<Integer> list){
    //输出玩家名称,不换行
    System.out.print(name+":");
    //遍历玩家或者底牌集合,获取牌的索引
    for (Integer key : list) {
        //使用牌的索引,去Map集合中,找到对应的牌
        String value = poker.get(key);
        System.out.print(value+" ");
    }
    System.out.println();//打印完每一个玩家的牌,换行
}

}