一、目的

• 学习单例设计模式
• 利用Java完成扑克游戏的Demo

二、技术及其实现

1.牌的花色及大小管理

public class PokerType {
    public static final PokerType SPADES=new PokerType("♠",4);
    public static final PokerType HEART=new PokerType("♥",3);
    public static final PokerType CLUBS=new PokerType("♣",2);
    public static final PokerType DIAMONDS=new PokerType("♦",1);

    private String pic;
    private int id;

    public PokerType(){}

    //提供一个自定义构造方法 默认的构造方法就被屏蔽了
    public PokerType(String pic,int id){
        this.pic=pic;
        this.id=id;
    }
    public String getPic() {
        return pic;
    }
    public void setPic(String pic) {
        this.pic = pic;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
}

2.牌的相关操作管理

public class PokerManager {
    //保存一副牌
    private ArrayList<Poker> pokers=new ArrayList<>();

    //创建静态的变量
    public static final PokerManager manager=new PokerManager();
    //私有化构造方法
    private PokerManager(){

    }
    //定义一个方法生成一副牌
    public void deal(){
        //遍历整个点数的数组
        for (int i=0;i<Constant.DOTS.length;i++){
            //获取对应的点数
            String dot=Constant.DOTS[i];

            //生成四种花色
            for (int j=0;j<Constant.TYPES.length;j++){
                //创建一张牌
                Poker poker=new Poker(dot,Constant.TYPES[j]);
                //将这张牌保存起来
                pokers.add(poker);
            }
        }
        //洗牌
        Collections.shuffle(pokers);
    }
    //显示一副牌
    public void show(){
        for (Poker poker:pokers){
           System.out.print(poker.getDot()+poker.getType().getPic()+" ");
        }
        System.out.println();
    }

    /**
     * 给每个玩家发牌
     * @param players
     */
    public void dealCards(ArrayList<Player>players){
        for(int i=0;i<players.size();i++){
            Player player=players.get(i);

            //将数组里面对应的扑克牌给对应的玩家
            player.poker=pokers.get(i);
        }
    }
}

3.玩家信息

public class Player {
    public String name;
    public int id;
    public int money;
    public Poker poker;
    public Player(){

    }
    public Player(String name,int id,int money){
        this.name=name;
        this.id=id;
        this.money=money;
    }

    @Override
    public String toString() {
        //1号玩家 张家辉 筹码1000
        String pkString = "";
        if (poker!=null){
            pkString = ""+poker.getDot()+poker.getType().getPic();
        }
        return id+"号玩家: "+name+" 筹码"+money+" "+getPokerString();
    }

    public String getPokerString(){
        String pkString = "";
        if (poker!=null){
            pkString = ""+poker.getDot()+poker.getType().getPic();
        }
        return pkString;
    }
    //下注
    public int bet(int count){
        //判断自己的金币是否大于下注金额
        if (money>=count){
            money-=count;
            return count;
        }
        else{
            return -1;
        }
    }
}

4.玩家信息操作管理

public class PlayerManager {
    //记录当前下注的玩家编号
    public int currentPlayerIndex=0;

    //保存所有的玩家
    public ArrayList<Player>players=new ArrayList<>();

    public static final PlayerManager manager=new PlayerManager();
    private PlayerManager(){

    }
    //初始化玩家
    public void initPlayer(int count){
        for (int i=0;i<count;i++){
            //创建玩家信息
            String name=Constant.DEFAULT_NAMES[i];
            Player player=new Player(name ,i+1,Constant.MONEY);

            //保存玩家
            players.add(player);
        }
    }

    //输出玩家的信息
    public void show(){
        for (Player player:players){
            System.out.println(player);
        }
    }
    //打底
    public int betAll(int count){
        int total=0;
        for (Player player:players){
            int result=player.bet(count);
            if (result==-1){
                return -1;
            }
        }
        //返回总共下注的金额
        return count*players.size();
    }

    /**
     * 获取当前下注的玩家
     * @return 玩家对象
     */
    public Player currentPlayer(){
        return players.get(currentPlayerIndex);
    }
    public void changeNext(){
        //查找下一个可以参与的玩家
        if ()
    }
}

5.游戏中心

public class GameCenter {
    //记录这局的筹码
    private int totaMoney;

    //开始游戏
    public void start(){

        System.out.println("游戏开始，请打底：");
        //扣底注
        PlayerManager.manager.betAll(Constant.base);

        PlayerManager.manager.show();

        //发牌
        PokerManager.manager.dealCards(PlayerManager.manager.);

        PlayerManager.manager.show();

        while (true){
            //获取当前玩家信息
            Player player=PlayerManager.manager.currentPlayer();
            //提示选择操作
            System.out.println("请"+player.id+"号玩家选择操作");
            Utils.showText(true,true,new String[]{"看牌","弃牌","下注"});
            int choice=Utils.getInput();
          }
    }
}

三、心得体会

不得不说，对于我来说今天的Demo实在是太复杂了，刚开始还行到后来边听边写也才勉强跟上。我觉得要我自己单独写这个Demo还差得有点远，这样说来我还是慢慢看视频去吧。