斗地主案例的简单实现

た入场券 2023-02-14 01:38 48阅读 0赞

## 引言 ##

最近学习java相关的知识，学习了传智老师讲的斗地主案例感觉还是有点意思，此处小猿决定学习该案例并做一些相关的笔记，废话不多讲，我们开始进入正题。

## 案例需求 ##

现有player1，player1，player1三人需要完poker，我们操作是将54张牌发给这三人，在这过程中需要经历的是：  
准备牌->洗牌->发牌->看牌四个过程，我们需要用集合的知识实现这个过程。

### 方案一 ###

采用单列集合实现本案例

#### 知识架构 ####

arrayList继承了的集成体系如下所示:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZXNoYW5mZWl0aWFu_size_16_color_FFFFFF_t_70]  
而list接口和set接口都是来源于collection  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZXNoYW5mZWl0aWFu_size_16_color_FFFFFF_t_70 1]  
案例的基本思路是采用ArrayList集合，一个大集合来储存所有poker，然后遍历poker一次添加到不同玩家所采的集合，当poker只剩三张的时候就做底牌，废话不多说，献上代码。

#### 代码实现 ####

public class DouDiZhuDemo { 
        public static void main(String[] args) { 
            Collection collection = readyPoker();
            collection=shufflePoker(collection);
            ArrayList<String> dipai=new ArrayList<>();
            ArrayList<String> [] player=new ArrayList[4];
            for (int i = 0; i < player.length; i++) { 
                player[i]=new ArrayList<>();
            }
            distributePoker(collection,dipai,player);
            lookPoker(dipai,player);
        }
        //准备牌
        public static Collection readyPoker(){ 
            ArrayList<String> poker = new ArrayList<>();
            // 静态定义数组
            String [] number= { "2","A","K","Q","J","10","9","8","7","6","5","4","3"};
            //动态定义数组，复习一下动态定义数组的方法，可以参考一下和C/C++定义数组有什么区别
            String [] color = new String[4];
            color[0]="♠";
            color[1]="♥";
            color[2]="♣";
            color[3]="♦";
            for (int i = 0; i < number.length; i++) { 
                for (int i1 = 0; i1 < color.length; i1++) { 
                    poker.add(number[i]+color[i1]);
                }
            }
            poker.add("大王");
            poker.add("小王");
            System.out.println("开始准备poker");
            System.out.println(poker);
            return poker;
        }
    
        //洗牌
        public static Collection shufflePoker(Collection poker){ 
            Collections.shuffle((List<?>) poker);
            return poker;
        }
    
        //发牌
        public static void distributePoker(Collection poker,ArrayList dipai, ArrayList... player){ 
            ArrayList<?> poker1 = (ArrayList<?>) poker;
            String p=null;
    
            for (int i = 0; i < poker1.size(); i++) { 
                p= (String) poker1.get(i);
                if(i>50){ 
                    dipai.add(p);
                }else { 
                    for (int i1 = 0; i1 < player.length; i1++) { 
                        if(i%player.length==i1){ 
                            player[i1].add(p);
                            break;
                        }
                    }
                }
            }
        }
    	//看牌
        public static void lookPoker(ArrayList dipai,ArrayList... player){ 
            System.out.println("-------------------------");
            System.out.println("dipai"+dipai);
            System.out.println("-----------------------");
            for (int i = 0; i < player.length; i++) { 
                System.out.println("player"+i+"pokeris:"+player[i]);
            }
        }
    }

图中假定有四个人，小猿采用可变参的参数传递方式，这样做的好处是人数可变，具有较高的灵活性。  
先看看结果：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZXNoYW5mZWl0aWFu_size_16_color_FFFFFF_t_70 2]  
上述案例有个缺点就是看牌的时候poker没有按照顺序排列，所以需要考虑用其他双列集合来实现该案例。

### 方案二 ###

采用双列集合实现斗地主案例

#### 知识架构 ####

map是一个java中的顶层接口，改接口常见的继承体系如下图。![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZXNoYW5mZWl0aWFu_size_16_color_FFFFFF_t_70 3]  
小猿要重点关注的是Map下的hashmap的应用，采用hashMap实现上述案例，废话不多说，献上代码

#### 代码实现 ####

public class DouDiZhuDemo { 
        public static void main(String[] args) { 
            Collection<Integer> pokerIndex=new ArrayList<>();
            Map<Integer, String> poker= new HashMap<>();
            readyPoker(pokerIndex,poker);
           // System.out.println(pokerIndex);
          // System.out.println(poker);
            shufflePoker(pokerIndex);
            System.out.println(pokerIndex);
          // System.out.println(poker.size());
    
            Map<String, List> disPoker = new HashMap<>();
            disPoker.put("赵丽颖",new ArrayList());
            disPoker.put("杨幂",new ArrayList());
            disPoker.put("陈乔恩",new ArrayList());
            disPoker.put("杨紫",new ArrayList());
            disPoker.put("底牌",new ArrayList());
            disPoker.put("张天爱",new ArrayList());
            disPoker.put("甘露露",new ArrayList());
            try { 
                disPoker=distributePoker(pokerIndex,disPoker,poker);
            } catch (Exception e) { 
                e.printStackTrace();
            }
            lookPoker(disPoker);
    
        }
    
        //准备牌
        public static void readyPoker(Collection<Integer> pokerIndex, Map<Integer, String> poker){ 
            //定义洗好的poker索引
    
            //定义poker
            System.out.println("------------------准备poker-------------------------");
    
            // 定义牌的数字
            List<String> numbers = List.of("2", "A", "K", "Q", "J", "10", "9", "8", "7", "6", "5", "4", "3");
           // String [] number= {"2","A","K","Q","J","10","9","8","7","6","5","4","3"};
    
            //动态定义数组，复习一下动态定义数组的方法，可以参考一下和C/C++定义数组有什么区别
            /*String [] color = new String[4]; color[0]="♠"; color[1]="♥"; color[2]="♣"; color[3]="♦";*/
    
            //定义牌的花色
            List<String> colors = List.of("♠", "♥", "♣", "♦");
    
            int index=0;
            pokerIndex.add(index);
            poker.put(index,"大王");
            index++;
            pokerIndex.add(index);
            poker.put(index,"小王");
            index++;
    
            for (String number : numbers) { 
                for (String color : colors) { 
                    pokerIndex.add(index);
                    poker.put(index,number+color);
                    index++;
                }
            }
           // System.out.println(pokerIndex);
           System.out.println(poker);
            //return poker;
        }
    
        //洗牌
        public static void shufflePoker(Collection poker){ 
            System.out.println("----------开始洗牌-----------");
            Collections.shuffle((List<?>) poker);
            //return poker;
        }
    
        //发牌
        /*public static void distributePoker(Collection poker,ArrayList dipai, ArrayList... player){ ArrayList<?> poker1 = (ArrayList<?>) poker; String p=null; for (int i = 0; i < poker1.size(); i++) { p= (String) poker1.get(i); if(i>50){ dipai.add(p); }else { for (int i1 = 0; i1 < player.length; i1++) { if(i%player.length==i1){ player[i1].add(p); break; } } } } }*/
    
        public static Map distributePoker(Collection pokerIndex,Map<String,List> disPoker,Map<Integer,String> poker ) throws Exception { 
            System.out.println("-------------------------开始发牌----------------------------");
            Map<String,List> newDisPoker = new HashMap<>();
    
            for (int i = 0; i < pokerIndex.size(); i++) { 
                if(i>50){ 
                    if(disPoker.containsKey("底牌")){ 
                        List dipai = disPoker.get("底牌");
                        dipai.add(((List)pokerIndex).get(i));
                    }else { 
                        throw new Exception("没有底牌");
                    }
                }else { 
                    int size = disPoker.size()-1;
                    int in=0;
                    for (String key :
                            disPoker.keySet()) { 
                        if(key.equals("底牌")){ 
                            continue;
                        }
                        if(i%size==in){ 
                            disPoker.get(key).add(((List)pokerIndex).get(i));
                            break;
                        }
                        in++;
                    }
                }
            }
    
            for (String name:disPoker.keySet()
            ) { 
                Collections.sort(disPoker.get(name), new Comparator<Integer>() { 
                    @Override
                    public int compare(Integer o1, Integer o2) { 
                        return o2-o1;
                    }
                });
            }
    
            //重新组装牌
            for (String name:disPoker.keySet()
                 ) { 
                List<String> tempList= new ArrayList<>();
                for (Object o : disPoker.get(name)) { 
                    tempList.add(o+":"+poker.get(o));
                }
                newDisPoker.put(name,tempList);
                //tempList.clear();
            }
    
            //disPoker.clear();
            return  newDisPoker;
        }
    
        //看牌
        /*public static void lookPoker(ArrayList dipai,ArrayList... player){ System.out.println("-------------------------"); System.out.println("dipai"+dipai); System.out.println("-----------------------"); for (int i = 0; i < player.length; i++) { System.out.println("player"+i+"pokeris:"+player[i]); } }*/
        public static void lookPoker(Map<String,List> disPoker){ 
            System.out.println("-------------------------------准备看牌----------------------------");
    
            for (Map.Entry<String,List> entry :
                    disPoker.entrySet()) { 
                System.out.println(entry.getKey()+"::"+entry.getValue()+"共"+entry.getValue().size()+"::张牌");
    
            }
            System.out.println("---------------------------看牌结束-------------------------------");
        }
    
    }

此处值得一提的是List的of方法，该方法可以批量添加固定长度的元素，并且添加之后List的长度不在发生变化，即List.of(element…)适合固定长度的元素添加，并且采用该函数对jdk版本有要求，即推荐使用jdk9.0.4，上述代码执行结果为:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZXNoYW5mZWl0aWFu_size_16_color_FFFFFF_t_70 4]

## 总结 ##

通过演练斗地主案例，使得小猿复习了有关集合和图的相关知识，古人云：吾日三省吾身，小猿需要多多反省自己，多多努力。

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