Poker mini game:
Introduction to the game play: Define five people playing a poker game. The gameplay is that five people draw 4 cards from a deck of cards with no kings or kings. There are four types of cards: ♥, ♣, ♠ , ♦. The size of the cards is from 1 to 13. (Here for simplicity, only take 1-5).
1. Which player has the ace of spades ♠ wins.
package poker;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import java.util.concurrent.Callable;
public class Game {
public static void main(String[] args) {
//定义5名玩家，使用List
List<Player> playerList=new ArrayList<>();
playerList.add(new Player("于美人"));
playerList.add(new Player("小婷子"));
playerList.add(new Player("小晨子"));
playerList.add(new Player("小艾"));
playerList.add(new Player("小珍子"));
//定义扑克牌顺序表
List<Card> cardList=new ArrayList<>();
//初始化扑克牌
initializeCards(cardList);
System.out.println(cardList);
//调用collections下的shuffle（洗牌）方法
//进行洗牌
Collections.shuffle(cardList);
//System.out.println("抽牌前，牌组中的牌：");
System.out.println(cardList);
//发牌
int n=2;//每名玩家发几张牌
for(int i=0;i<n;i++){
//一共发n轮牌
for(Player player:playerList){
//每名玩家一次抽牌
Card card=cardList.remove(0);//从牌组中，抽一张牌出来
player.cardList.add(card);//把这张牌放到当前玩家的手中
}
}
System.out.println("现在牌组中剩余的牌：");
System.out.println(cardList);
System.out.println("交换牌之前：");
for(Player player:playerList){
System.out.printf("玩家[%s]的手牌是： %s%n",player.name,player.cardList);
}
//要找的牌，方法1
Card toFoundCard=new Card("♠",1);
for(Player player:playerList){
for(Card card:player.cardList){
//比较每张牌和要找的是否为同一张牌
if(card.equals(toFoundCard)){
System.out.println(player.name+"获胜");
return;
}
}
}
System.out.println("无人获胜");
}
//要找的牌，方法2
Card toFoundCard2=new Card("♠",1);
for(Player player:playerList){
if(player.cardList.contains(toFoundCard)) {
System.out.println(player.name + "获胜");
return;
}
}
private static void initializeCards(List<Card> cards){
for(String suit:new String[]{
"♠","♥","♦","♣"}){
for(int rank=1;rank<=5;rank++){
Card card=new Card(suit,rank);
//把扑克牌放入牌组中
cards.add(card);
}
}
}
2. Let each player draw his next hand in turn, then look for ♠A, and find ♠A to win.
//添加打印手牌的方法
public static void printPlayerHandCard(List<Player> playerList){
for(Player player:playerList){
System.out.printf("玩家[%s]的手牌是：%s%n",player.name,player.cardList);
}
}
//集体实现交换的过程
//交换牌
//每名玩家随机抽取下家的一张牌
Random random=new Random();
for(int i=0;i<playerList.size();i++){
Player currentPlayer=playerList.get(i);
//下家就是按照前后关系的下一个，最后一名玩家抽取第0个
Player nextPlayer=playerList.get(i!=playerList.size()-1?i+1:0);
//要取的牌的下标
int toDrawIndex=random.nextInt(nextPlayer.cardList.size());
//取牌
Card drawCard=nextPlayer.cardList.remove(toDrawIndex);
//放入当前玩家的手中
currentPlayer.cardList.add(drawCard);
}
System.out.println("交换牌之后：");
printPlayerHandCard(playerList);
3. Yu Meiren is a gambling god, she has the ability to change cards: once she doesn't have ♠A in her hand, she can change the first card into ♠A. (Before the cards are exchanged, there is a chance to change once; after the cards are exchanged, there is a chance to change once)
Card toFoundCard=new Card("♠",1);
//已知于美人的下标为0
Player 于美人=playerList.get(0);
if(!于美人.cardList.contains(toFoundCard)){
于美人.cardList.set(0,toFoundCard);
}
System.out.println("于美人第一次发功：");
printPlayerHandCard(playerList);
System.out.println("交换牌之后：");
printPlayerHandCard(playerList);
//此处交换牌过程省略。。。。。。。。。。。。。。
if(!于美人.cardList.contains(toFoundCard)){
于美人.cardList.set(0,toFoundCard);
}
System.out.println("于美人第二次发功：");
printPlayerHandCard(playerList);
Define a new class for the player:
package poker;
import java.util.ArrayList;
import java.util.List;
public class Player {
public List<Card> cardList=new ArrayList<>();
public String name;
public Player(String name){
this.name=name;
}
}
Define a class of playing cards:
package poker;
import java.util.Objects;
public class Card {
public String suit;//花色
public int rank;//分值
//构造方法
public Card(String suit,int rank){
this.rank=rank;
this.suit =suit;
}
@Override
public String toString() {
return String.format("[%s%d]",suit,rank);
}
//重写比较相等的方法
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Card card = (Card) o;
return rank == card.rank &&
Objects.equals(suit, card.suit);
}
}
Note : (1) To redefine the rewriting of the comparison equality method.
(2) Pay attention to the writing of the foreach method.