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mahjong.cpp
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mahjong.cpp
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#include "mahjong.h"
#include <cstring>
#include <set>
mahjong::mahjong(unsigned char type, unsigned int num) {
this->type = type;
this->num = num;
}
int mahjong::get_ID(void) const{
return (int)type * 10 + (int)num;
}
now_mahjongs::now_mahjongs(const now_mahjongs& other) {
nowMahjong_main = other.get_now_mahjongs_main();
nowMahjong_side = other.get_now_mahjongs_side();
nowMahjong_AnKong = other.get_now_mahjongs_AnKong();
}
std::vector<mahjong> now_mahjongs::get_now_mahjongs_main(void) const {
return nowMahjong_main;
}
std::vector<std::vector<mahjong>> now_mahjongs::get_now_mahjongs_side(void) const {
return nowMahjong_side;
}
std::vector<mahjong> now_mahjongs::get_now_mahjongs_AnKong(void) const {
return nowMahjong_AnKong;
}
void now_mahjongs::add_mahjong_main(mahjong new_mahjong) {
nowMahjong_main.push_back(new_mahjong);
order_mahjongs();
count_num[new_mahjong.get_ID()]++;
}
void now_mahjongs::add_mahjong_side(std::vector<mahjong> new_mahjong) {
nowMahjong_side.push_back(new_mahjong);
count_num[new_mahjong[0].get_ID()]++;
count_num[new_mahjong[1].get_ID()]++;
count_num[new_mahjong[2].get_ID()]++;
}
void now_mahjongs::add_mahjong_AnKong(mahjong new_mahjong) {
nowMahjong_AnKong.push_back(new_mahjong);
count_num[new_mahjong.get_ID()] += 4;
}
void now_mahjongs::order_mahjongs(void) {
int nums = (int)nowMahjong_main.size();
for(int i = 0; i < nums; i++){
for(int j = i; j < nums; j++){
if(nowMahjong_main[i] > nowMahjong_main[j]){
mahjong temp = nowMahjong_main[i];
nowMahjong_main[i] = nowMahjong_main[j];
nowMahjong_main[j] = temp;
}
}
}
}
void now_mahjongs::clear_mahjongs(void) {
nowMahjong_main.clear();
nowMahjong_side.clear();
nowMahjong_AnKong.clear();
std::memset(count_num, 0, sizeof(count_num));
}
void now_mahjongs::clear_mahjongs(int order) {
switch(order){
case 1: //main
for(auto it : nowMahjong_main){
count_num[it.get_ID()] --;
}
nowMahjong_main.clear();
break;
case 2: //side
for(const auto& it : nowMahjong_side){
for(auto itt : it){
count_num[itt.get_ID()] --;
}
}
nowMahjong_side.clear();
break;
case 3: //ankang
for(auto it : nowMahjong_AnKong){
count_num[it.get_ID()] -= 4;
}
nowMahjong_AnKong.clear();
break;
}
}
bool now_mahjongs::can_win_now(void) const {
if((int)nowMahjong_main.size() == 14){
//国士无双
std::set<int> mahjong_id;
int _19num = 0;
for(auto thisMahjong : nowMahjong_main){
if(thisMahjong.type >= DONG_FENG || (thisMahjong.num == 1 || thisMahjong.num == 9)){
mahjong_id.insert(thisMahjong.get_ID());
_19num ++;
}
else
break;
}
if((int)mahjong_id.size() == 13 && _19num == 14)
return true;
//七对子
bool _7pairs = true;
for(int i = 0; i < 13; i += 2){
if(nowMahjong_main[i].get_ID() != nowMahjong_main[i + 1].get_ID()){
_7pairs = false;
break;
}
if((i + 2) < 14 && (nowMahjong_main[i].get_ID() == nowMahjong_main[i + 2].get_ID())){
_7pairs = false;
break;
}
}
if(_7pairs)
return true;
}
int remain_melds = 4 - (int)nowMahjong_side.size() - (int)nowMahjong_AnKong.size();
for(int i = 0; i + 1 < (int)nowMahjong_main.size(); i++){
if(nowMahjong_main[i].get_ID() == nowMahjong_main[i + 1].get_ID()){
std::vector<mahjong> remain_mahjong;
for(int j = 0; j < (int)nowMahjong_main.size(); j++){
if(j != i && j != i + 1)
remain_mahjong.push_back(nowMahjong_main[j]);
}
if(can_make_melds(remain_mahjong, remain_melds))
return true;
}
}
return false;
}
bool now_mahjongs::can_make_melds(std::vector<mahjong> remain, int remain_melds) const {
if(remain_melds == 0)
return true;
else if(remain_melds == 1) {
if(remain[0] == remain[1] && remain[1] == remain[2])
return true;
else if(remain[0].type == remain[1].type && remain[1].type == remain[2].type){
if(remain[0].num + 1 == remain[1].num && remain[1].num + 1 == remain[2].num)
return true;
else
return false;
}
else
return false;
}
else{
int ii, jj, kk;
for(ii = 0; ii < (int)remain.size(); ii++){
for(jj = ii + 1; jj < (int)remain.size(); jj++){
for(kk = jj + 1; kk < (int)remain.size(); kk++){
if((remain[ii] == remain[jj] && remain[jj] == remain[kk]) || ((remain[ii].type == remain[jj].type && remain[jj].type == remain[kk].type) && (remain[ii].num + 1 == remain[jj].num && remain[jj].num + 1 == remain[kk].num))){
std::vector<mahjong> new_remain;
for(int i = 0; i < (int)remain.size(); i++){
if(i != ii && i != jj && i != kk)
new_remain.push_back(remain[i]);
}
if(can_make_melds(new_remain, remain_melds - 1))
return true;
}
}
}
}
}
return false;
}
bool now_mahjongs::can_win_ifhas(const mahjong& new_mahjong) const {
now_mahjongs temp_now_mahjongs(*this);
temp_now_mahjongs.add_mahjong_main(new_mahjong);
return temp_now_mahjongs.can_win_now();
}
bool now_mahjongs::can_win_soon(void) const {
std::vector<mahjong> mahjongs_waiting_for = waiting_for();
return ((int)mahjongs_waiting_for.size() != 0);
}
std::vector<mahjong> now_mahjongs::waiting_for(void) const {
std::vector<mahjong> mahjongs_waiting_for;
for(int temp_type = TONG; temp_type <= WAN; temp_type++){
for(int temp_num = 1; temp_num <= 9; temp_num++){
mahjong new_mahjong(temp_type, temp_num);
if(can_win_ifhas(new_mahjong) && count_num[new_mahjong.get_ID()] < 4)
mahjongs_waiting_for.push_back(new_mahjong);
}
}
for(int temp_type = DONG_FENG; temp_type <= FA; temp_type++){
mahjong new_mahjong(temp_type);
if(can_win_ifhas(new_mahjong) && count_num[new_mahjong.get_ID()] < 4)
mahjongs_waiting_for.push_back(new_mahjong);
}
return mahjongs_waiting_for;
}