#include <stdio.h>
#include <stdlib.h>
#include <time.h>
//定義撲克的花色
enum Suit{
  heart,
  spade,
  diamond,
  club,
  joker1,
  joker2
};
//一副牌的數(shù)量
#define CARD_COUNT 54
//定義撲克
typedef struct Card{
  int value;//牌的點(diǎn)數(shù)從1開始
  enum Suit suit;//花色
}Card;
//定義玩家
typedef struct Player{
  char name[64];//玩家的名字
  Card ** cards;//玩家分到的牌。每項(xiàng)是一個(gè)指針，指向原始一副牌數(shù)組中的一項(xiàng)，這樣可以節(jié)省空間
  int cardsCount;//玩家分到的牌的數(shù)量
}Player;
//分牌完成后調(diào)用的函數(shù)的類型
typedef int (*COMPARE)(Card* ,Card*);
//函數(shù)聲明們
char* getCardName(const Card*);
Card** shuffle(const Card*);
void dispatchCards(Player** ,int ,const Card** );
void sort(Card**,int,COMPARE);
int compare1(Card* ,Card*);
int compare2(Card* ,Card*);
void initOnePack();
//原始一副牌所在的數(shù)組
Card pokers[CARD_COUNT];
//入口函數(shù)
int main(void)
{
  //初始化一副牌
  initOnePack();

    //洗牌，shuffledPokers保存洗后的牌們
  Card** shuffledPokers = shuffle(pokers);
    //構(gòu)建三個(gè)玩家
  Player player1;
  strcpy(player1.name,"隔壁老王");
  player1.cards=NULL;
  player1.cardsCount=0;
  Player player2;
  strcpy(player2.name,"小明");
  player2.cards=NULL;
  player2.cardsCount=0;
  Player player3;
  strcpy(player3.name,"田中龜孫");
  player3.cards=NULL;
  player3.cardsCount=0;
  //把三放到一個(gè)數(shù)組中，以傳入發(fā)牌函數(shù)中
  Player* players[]={&player1,&player2,&player3};
    //發(fā)牌
  dispatchCards(players,sizeof(players)/sizeof(Player*),shuffledPokers);
    //洗后的牌用完了，釋放之
  free(shuffledPokers);
  int i;
    //打印出每個(gè)玩家手中的牌
  for(i=0;i<sizeof(players)/sizeof(Player*);i++){
        //先打印玩家的名字
    printf("%s\n",players[i]->name);
        //需要對玩家手中的牌排序
    sort(players[i]->cards,players[i]->cardsCount,compare1);
        //打印玩家手中所有的牌
    int j;
    for(j=0;j<players[i]->cardsCount;j++){
      char * name = getCardName(players[i]->cards[j]);
      printf("%s ",name);
      free(name);
    }
    //每個(gè)玩家都需要換一次行
    printf("\n");
  }
    //釋放玩家手中牌的數(shù)組
  for(i=0;i<sizeof(players)/sizeof(Player*);i++){
    free(players[i]->cards);
  }
  return 0;
}
//構(gòu)造一副牌
void initOnePack(){
  int i=0;
  //前52張
  for(;i<CARD_COUNT-2;i++){
    pokers[i].value=i/4+1;
    pokers[i].suit = i%4;
  }
  //剩下的兩張：大王和小王
  //joker1
  pokers[i].value=i/4+1;
  pokers[i].suit=joker1;
  //joker2
  pokers[i+1].value=i/4+2;
  pokers[i+1].suit=joker2;
}
//洗牌，參數(shù)是原始的一副牌，返回洗完后的牌
Card** shuffle(const Card* pokers){
  int i;
    //分牌返回牌數(shù)組的內(nèi)存空間
  Card** retPokers = malloc(CARD_COUNT*sizeof(Card*));
  //為了不改動(dòng)原始的一副牌，另建一個(gè)數(shù)組，保存原始牌的指針（注意每項(xiàng)不是牌，而是牌的指針）
  Card** pokers2 = malloc(CARD_COUNT*sizeof(Card*));
  for(i=0;i<CARD_COUNT;i++){
    pokers2[i] = &pokers[i];
  }
    //種下隨機(jī)種子。種子取的是當(dāng)前時(shí)間，
    //所以保證了每次運(yùn)行程序時(shí)，產(chǎn)生的隨機(jī)數(shù)序列不同
  srand(time(NULL));
    //取得隨機(jī)序號，從pokers2取出序號所指的項(xiàng)，把它依次加到retPokers中。
  for(i=0;i<CARD_COUNT;i++){
    unsigned int index = rand()%CARD_COUNT;
    if(pokers2[index] != NULL){
      retPokers[i] = pokers2[index];
      pokers2[index]=NULL;
    }else{
      i--;
    }
  }
  free(pokers2);

    //返回洗完后的數(shù)組
  return retPokers;
}
//發(fā)牌
//players是玩家數(shù)組
//playerCount是玩家數(shù)量
//shuffledCards是洗完后的一副牌
void dispatchCards(Player** players,int playerCount,const Card** shuffledCards){
  //計(jì)算每個(gè)玩家手中牌的數(shù)組的容量，如果每個(gè)玩家手中的牌不一樣，
  //最多就差一張，加1是為了保證數(shù)組分配的空間足夠容納分到的牌。
  int numberCards = CARD_COUNT/playerCount+1;
  //為每個(gè)玩家的牌數(shù)組分配空間
  int i;
  for(i=0;i<playerCount;i++){
    Card* cards = malloc(numberCards*sizeof(Card*));
    players[i]->cards = cards;
  }
  //輪流向每個(gè)玩家發(fā)牌
  for(i=0;i<CARD_COUNT;i++){
    //取當(dāng)前玩家
    Player *curPlayer = players[i%playerCount];
    //向玩家發(fā)牌
    curPlayer->cards[curPlayer->cardsCount] = shuffledCards[i];
    //玩家手中實(shí)際的牌數(shù)增加
    curPlayer->cardsCount++;
  }
}
//排序函數(shù)
//cards是要排序的牌，每一項(xiàng)是牌的指針
//cardsCount是牌的數(shù)量
//compare_func是比較函數(shù)
void sort(Card** cards,int cardsCount,COMPARE compare_func){
  int i;
  for(i=0;i<cardsCount-1;i++){
    int j;
    for(j=0;j<cardsCount-i-1;j++){
        if(compare_func(cards[j],cards[j+1])){
          int tmp=cards[j];
          cards[j]=cards[j+1];
          cards[j+1]=tmp;
        }
    }
  }
}
//比較函數(shù)，先比較點(diǎn)數(shù)再比較花色
int compare1(Card* a,Card* b){
  if(a->value > b->value){
    return 1;
  }else if(a->value < b->value){
    return 0;
  }else{
    if(a->suit > b->suit)
      return 1;
    else
      return 0;
  }
}
//比較函數(shù)，先比較點(diǎn)數(shù)再比較花色
int compare2(Card* a,Card* b){
  if(a->value > b->value){
    return 0;
  }else if(a->value < b->value){
    return 1;
  }else{
    if(a->suit > b->suit)
      return 0;
    else
      return 1;
  }
}
//獲取牌的名字
//返回牌的名字字符串，調(diào)用者用完后需要free()之。
char* getCardName(const Card* card){
  //存放花色名字
  char suitStr[16]={0};//0=='\0'
  switch (card->suit) {
  case heart:
    strcpy(suitStr,"紅桃");
    break;
  case spade:
    strcpy(suitStr,"黑桃");
    break;
  case diamond:
    strcpy(suitStr,"方塊");
    break;
  case club:
    strcpy(suitStr,"梅花");
    break;
  }
  //存放點(diǎn)數(shù)名字
  char valueStr[16];
  switch(card->value){
  case 1:
    strcpy(valueStr,"A");
    break;
  case 11:
    strcpy(valueStr,"J");
    break;
  case 12:
    strcpy(valueStr,"Q");
    break;
  case 13:
    strcpy(valueStr,"K");
    break;
  case 14:
    strcpy(valueStr,"小王");
    break;
  case 15:
    strcpy(valueStr,"大王");
    break;
  default:
    sprintf(valueStr,"%d",card->value);
    break;
  }
  //動(dòng)態(tài)分配足夠的空間
  char * ret = malloc(16);
  //將兩個(gè)名字合并到ret中
  sprintf(ret,"%s%s",suitStr,valueStr);
  return ret;
}