c 實現貪吃蛇

```

#include
#include
#include
#include
#include
#include 
#include 
#include
#include
word square_color[7] = ;義方向
#define key_up      72
#define key_down    80
#define key_left    75
#define key_right   77
#define key_esc     27
//邊框屬性
#define mapw 30
#define maph 20
#define offset_l 2
#define offset_u 2
using
namespace
std;
class bitmap;
class feed;
class snake;
//獲取控制代碼函式
handle initiate() 
//控制台輸出函式
bool textout(handle houtput, int x, int y, lptstr lpszctring,word wcolors, int ncolors) 
if (!fsuccess)
cout
<< "error:writeconsoleoutputcharacter"
<< endl;
return
0;}//end
bool textout1(handle houtput,int x,int y,lptstr lpszctring) 
enum type ;
extern handle handle;
//列印遊戲介面
template
void print(t &t, enum type ty) 
for (t::iterator it = t.begin();it != t.end();++it)
textout(handle, offset_l + 2 * it->coord.first, offset_u + it->coord.second, lpsztext, square_color+it->color,1);
}//node
struct node 
friend
inline
bool
operator
<(const node &lhs, const node &rhs);
};//比較兩個節點是否相同的函式
bool equalnode(node node1, node node2) 
//運算子過載(因為set需要排序)
inline
bool
operator
<(const node &lhs, const node &rhs)
else
if (lhs.coord.second == rhs.coord.second)
else
}//bitmap 類
class bitmap
void printbitmap();
void insert(pair edge);
private:
int x, y, w, h, c;
setbm;
};void bitmap::insert(pair edge) 
void bitmap::printbitmap() 
//feed類
class feed ;
void feed::printfeed() 
class snake ;
snake(pair head, pair tail);
void printsnake();
void erasesnake();
void movefront(pair t);
bool nextstep(direction d,bitmap &b,feed &fd,bool &eat);
void snake::addnewfeed(bitmap &b, feed &f);
direction getdir() 
bool changedirection(direction d, bitmap &b, feed &f,  bool &eat);                 //判斷方向改變是否合法
private:
deque
sn;direction dir;
void addfrontnode(node n, feed &f);
};snake::snake(pair head, pair tail) 
else
if (head.second > tail.second) 
else
throw runtime_error("無法繪蛇");
}else
if (head.second == tail.second) 
else
if (head.first < tail.first) 
}else
throw runtime_error("無法繪蛇");
}void snake::printsnake() 
void snake::erasesnake() 
void snake::addfrontnode(node n, feed &f) 
void snake::movefront(pair t) 
else 
}}bool snake::nextstep(direction d, bitmap &b, feed &f, bool &eat) 
dir = d;
for (set
::iterator it = b.bm.cbegin();it != b.bm.cend();it++) 
if (equalnode(*it, node(temp.first, temp.second,6))) 
return
false;
for (deque
::iterator it = sn.begin();it != sn.end() - 1;it++) 
if (equalnode(*it, node(temp.first, temp.second,6)))
return
false;
for (set
::iterator it = f.fd.begin();it != f.fd.end();it++) 
}erasesnake();
movefront(temp);
printsnake();
return
true;
}bool snake::changedirection(direction d, bitmap &b, feed &f, bool &eat) 
void snake::addnewfeed(bitmap &b, feed &f) 
ok = true;
}if (!ok) continue;
for (it = f.fd.begin();it != f.fd.end(); it++) 
ok = true;
}if (!ok) continue;
deque
::iterator dit;
for (dit = sn.begin();dit != sn.end();dit++) 
ok = true;
}if (!ok) continue;
f.fd.insert(node(temp.first, temp.second,rand()%7));
break;
}}handle handle;
void init(bitmap &b,feed &feed,snake &s)
for (int j = 1; j < maph - 1; j++)
b.printbitmap();
for (int i = 0;i < 3;++i)
s.addnewfeed(b, feed);
feed.printfeed();
s.printsnake();
lptstr text1 = text("score:");
lptstr text2 = text("level:");
lptstr text = text("❤按任意鍵開始！❤");
textout1(handle, 1, 1, text);
textout1(handle, offset_l + 2*mapw , offset_u, text1);
textout1(handle, offset_l + 2 * mapw, offset_u + 5, text2);
char c = _getch();
}int main() 
if (!ret) 
if (eat) }}
sleep(speed);
delay++;
} //while (delay < max_delay)
ret = mysnake.nextstep(mysnake.getdir(), mybitmap, myfeed, eat);
if (!ret) 
if (eat) 
}}//while(1)
return
0;}

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