分享自己写的一个贪吃蛇的游戏(Linux)

作者: dave_cn 发表于 2010-07-18 21:20 原文链接 阅读: 148 评论: 2

转载请注明出处。http://www.cnblogs.com/dave_cn/

本程序需要ncurses库，ubuntu下安装ncurses可以执行下面命令：

sudo apt-get install libncurses5-dev 

关于ncurses的用法，读者可以Google之。

程序运行的效果如下：

其中包含两个窗口，一个为game窗口，一个为日志窗口。 

 

 代码如下：

   1 /**

  2  * Snake
  3  * author: dave_cn
  4  * date  : 2010/7/14
  5  * info  :
  6  *        @ ...... food
  7  */
  8 #include <stdio.h>
  9 #include <stdlib.h>
 10 #include <string.h>
 11 #include <sys/time.h>
 12 #include <sys/types.h>
 13 #include <unistd.h>
 14 #include <ncurses.h>
 15 
 16 #define TBool            int
 17 #define True             1
 18 #define False            0    
 19 #define SHAPE_FOOD       '@'
 20 #define SHAPE_SNAKE      '*'
 21 #define GAMEWIN_YLEN     15
 22 #define GAMEWIN_XLEN     60
 23 #define LOGWIN_YLEN      7
 24 #define LOGWIN_XLEN      (GAMEWIN_XLEN)
 25 #define LOGBUF_NUM       (LOGWIN_YLEN-2)
 26 #define LOGBUF_LEN       (GAMEWIN_XLEN-2)
 27 #define MAXLEVEL         12
 28 
 29 #define GetSnakeTail(s)  ((s)->head->front)
 30 
 31 WINDOW *logwin;
 32 #define INITRUNLOG()     logwin = newlogw()
 33 #define RUNLOG(str)      runlog(logwin, str)
 34 #define DESTROYRUNLOG()  delwin(logwin)
 35 
 36 int g_level;
 37 
 38 enum TDirection {
 39     DIR_UP,
 40     DIR_DOWN,
 41     DIR_LEFT,
 42     DIR_RIGHT
 43 };
 44 
 45 struct TFood {
 46     int y;
 47     int x;
 48 };
 49 
 50 struct TSnakeNode {
 51     int y;
 52     int x;
 53     struct TSnakeNode *front;
 54 };
 55 
 56 struct TSnake {
 57     int    length;
 58     struct TSnakeNode *head;
 59     enum   TDirection  dir;
 60 };
 61 
 62 int refreshgamew(WINDOW *win, struct TSnake *psnake);
 63 void movesnake(struct TSnake *psnake);
 64 int checksnake(struct TFood *pfood, struct TSnake *psnake);
 65 void snakegrowup(struct TFood *pfood, struct TSnake *psnake);
 66 void gameover(WINDOW *win, char *str);
 67 struct TSnakeNode *newsnakenode(struct TSnakeNode **ppsnode, int y, int x);
 68 WINDOW* newgamew();
 69 struct TSnake* initsnake();
 70 void destroysnake(struct TSnake *psnake);
 71 void drawsnakew(WINDOW *win, struct TSnake *psnake);
 72 void drawfoodw(WINDOW *win, struct TFood *pfood, struct TSnake *psnake);
 73 TBool checkfood(struct TFood *pfood, struct TSnake *psnake);
 74 WINDOW* newlogw();
 75 void runlog(WINDOW *win, char *str);
 76 void cleanline(WINDOW *win, int y, int x);
 77 
 78 int main()
 79 {
 80     initscr();
 81     raw();
 82     noecho();
 83     keypad(stdscr, TRUE);
 84     curs_set(0);
 85     refresh();
 86 
 87     g_level = 1;
 88     INITRUNLOG();
 89     RUNLOG("  Press 'q' or 'Q' to quit.");
 90     RUNLOG("  Press 'w/s/a/d' or 'W/S/A/D' to move the snake.");
 91     RUNLOG("Info:");
 92     
 93     WINDOW *gwin = newgamew();
 94     struct TSnake *psnake = initsnake();
 95     drawsnakew(gwin, psnake);
 96     
 97     while (refreshgamew(gwin, psnake) >= 0) ;
 98     
 99     getch();
100     
101     destroysnake(psnake);
102     delwin(gwin);
103     DESTROYRUNLOG();
104     endwin();
105     
106     return 0;
107 }
108 
109 int refreshgamew(WINDOW *win, struct TSnake *psnake)
110 {
111     static TBool ffood = False;
112     struct TFood pfood;
113     
114     if (!ffood) {
115         drawfoodw(win, &pfood, psnake);
116         ffood = True;
117     }
118 
119     int key = -1;
120     
121     fd_set set;
122     FD_ZERO(&set);
123     FD_SET(0, &set);
124     
125     struct timeval timeout;
126     timeout.tv_sec = 0;
127     timeout.tv_usec= (6 - (int)(g_level/3)) * 100*1000;
128     
129     if (select(1, &set, NULL, NULL, &timeout) < 0)
130         return -1;
131     
132     if (FD_ISSET(0, &set)) {
133         while ((key = getch()) == -1) ;
134     
135         switch (key) {
136         case 'w':
137         case 'W':
138             (psnake->dir == DIR_DOWN) ? : (psnake->dir = DIR_UP);
139             break;
140         
141         case 's':
142         case 'S':
143             (psnake->dir == DIR_UP) ? : (psnake->dir = DIR_DOWN);
144             break;
145         
146         case 'a':
147         case 'A':
148             (psnake->dir == DIR_RIGHT) ? : (psnake->dir = DIR_LEFT);
149             break;
150         
151         case 'd':
152         case 'D':
153             (psnake->dir == DIR_LEFT) ? : (psnake->dir = DIR_RIGHT);
154             break;
155         
156         case 'q':
157         case 'Q':
158             RUNLOG("Quit Game!");
159             gameover(win, "Quit Game!");
160             return -1;
161         
162         default:
163             break;
164         }
165     }
166 
167     movesnake(psnake);
168     drawsnakew(win, psnake);
169     switch (checksnake(&pfood, psnake)) {
170     case 0:
171         break;
172         
173     case 1:
174         ffood = False;
175         if (++g_level > MAXLEVEL) {
176             RUNLOG("Win!!!");
177             gameover(win, "Win!!!");
178             return -1;
179         }
180         mvwprintw(win, GAMEWIN_YLEN-1, 2, " Level: %d ", g_level);
181         mvwprintw(win, GAMEWIN_YLEN-1, 30, " Speed: %d ", (int)(g_level/3));
182         wrefresh(win);
183         RUNLOG("Level UP!");
184         snakegrowup(&pfood, psnake);
185         break;
186         
187     default:
188         RUNLOG("Game over!");
189         gameover(win, "Game over!");
190         return -1;
191     }
192     
193     return 1;
194 }
195 
196 /**
197  * stuct TSnake是一个倒置的首尾相连的链表,head->front指向snake的尾部
198  * 如: [a]<-[b]<-[c]<-[d]    a为head
199  *      |              ^     snake移动的时候,只用head指向d,
200  *      `--------------'     并且修改d的(y,x)为snake头移动到的位置.
201  */
202 void movesnake(struct TSnake *psnake)
203 {
204     int hy = psnake->head->y;
205     int hx = psnake->head->x;
206     
207     psnake->head = GetSnakeTail(psnake);
208     
209     switch (psnake->dir) {
210     case DIR_UP:
211         psnake->head->y = hy - 1;
212         psnake->head->x = hx;
213         break;
214     
215     case DIR_DOWN:
216         psnake->head->y = hy + 1;
217         psnake->head->x = hx;
218         break;
219     
220     case DIR_LEFT:
221         psnake->head->y = hy;
222         psnake->head->x = hx - 1;
223         break;
224     
225     case DIR_RIGHT:
226         psnake->head->y = hy;
227         psnake->head->x = hx + 1;
228         break;
229         
230     default:
231         break;
232     }
233 }
234 
235 int checksnake(struct TFood *pfood, struct TSnake *psnake)
236 {
237     if ( psnake->head->y <= 0 || psnake->head->y >= GAMEWIN_YLEN
238       || psnake->head->x <= 0 || psnake->head->x >= GAMEWIN_XLEN)
239     {
240         return -1;
241     }
242 
243     struct TSnakeNode *pnode = GetSnakeTail(psnake);
244     int i = 0;
245     for (; i < psnake->length - 1; ++i, pnode = pnode->front)
246         if (psnake->head->y == pnode->y && psnake->head->x == pnode->x)
247             return -1;
248 
249     if (psnake->head->y == pfood->y && psnake->head->x == pfood->x)
250         return 1;
251     
252     return 0;
253 }
254 
255 void snakegrowup(struct TFood *pfood, struct TSnake *psnake)
256 {
257     struct TSnakeNode *pnode = (struct TSnakeNode *)malloc(sizeof(struct TSnakeNode));
258     
259     switch (psnake->dir) {
260     case DIR_UP:
261         pnode->y = psnake->head->y - 1;
262         pnode->x = psnake->head->x;
263         break;
264     
265     case DIR_DOWN:
266         pnode->y = psnake->head->y + 1;
267         pnode->x = psnake->head->x;
268         break;
269     
270     case DIR_LEFT:
271         pnode->y = psnake->head->y;
272         pnode->x = psnake->head->x - 1;
273         break;
274     
275     case DIR_RIGHT:
276         pnode->y = psnake->head->y;
277         pnode->x = psnake->head->x + 1;
278         break;
279         
280     default:
281         break;
282     }
283     
284     pnode->front = GetSnakeTail(psnake);
285     psnake->head->front = pnode;
286     psnake->head = pnode;
287     ++psnake->length;
288 }
289 
290 void gameover(WINDOW *win, char *str)
291 {
292     mvwprintw(win, (int)(GAMEWIN_YLEN/2), (GAMEWIN_XLEN/2 - strlen(str)/2), str);
293     mvwprintw(win, (int)(GAMEWIN_YLEN/2 + 1), 20, "Press any key to quit...");
294     wrefresh(win);
295 }
296 
297 WINDOW* newgamew()
298 {
299     WINDOW *win = newwin(GAMEWIN_YLEN, GAMEWIN_XLEN, 1, 3);
300     box(win, 0, 0);
301     mvwprintw(win, 0, 2, " GAME ");
302     mvwprintw(win, GAMEWIN_YLEN-1, 2, " Level: %d ", g_level);
303     mvwprintw(win, GAMEWIN_YLEN-1, 30, " Speed: %d ", (int)(g_level/3));
304     wrefresh(win);
305     
306     return win;
307 }
308 
309 struct TSnake* initsnake()
310 {
311     struct TSnake *psnake = (struct TSnake *)malloc(sizeof(struct TSnake));
312 
313     psnake->dir    = DIR_LEFT;
314     psnake->length = 4;
315     
316     newsnakenode (
317         &newsnakenode (
318             &newsnakenode (
319                 &newsnakenode( &psnake->head, 4, 50 )->front, 4, 53
320             )->front, 4, 52
321         )->front, 4, 51
322     )->front = psnake->head;
323 
324     return psnake;
325 }
326 
327 struct TSnakeNode *newsnakenode(struct TSnakeNode **ppsnode, int y, int x)
328 {
329     *ppsnode = (struct TSnakeNode *)malloc(sizeof(struct TSnakeNode));
330     (*ppsnode)->y = y;
331     (*ppsnode)->x = x;
332     (*ppsnode)->front = NULL;
333     
334     return *ppsnode;
335 }
336 
337 void destroysnake(struct TSnake *psnake)
338 {
339     struct TSnakeNode *psnode = GetSnakeTail(psnake);
340     struct TSnakeNode *ptmp   = NULL;
341     
342     int i = 0;
343     for (; i < psnake->length; ++i) {
344         ptmp   = psnode;
345         psnode = psnode->front;
346         free(ptmp);
347     }
348     
349     free(psnake);
350     psnake = NULL;
351 }
352 
353 void drawsnakew(WINDOW *win, struct TSnake *psnake)
354 {
355     static int taily = 0;
356     static int tailx = 0;
357     if (taily != 0 && tailx != 0) {
358         mvwaddch(win, taily, tailx, ' ');
359     }
360     
361     struct TSnakeNode *psnode = GetSnakeTail(psnake);
362     
363     int i = 0;
364     for (; i < psnake->length; ++i) {
365         mvwaddch(win, psnode->y, psnode->x, SHAPE_SNAKE);
366         psnode = psnode->front;
367     }
368     
369     taily = GetSnakeTail(psnake)->y;
370     tailx = GetSnakeTail(psnake)->x;
371 
372     wrefresh(win);
373 }
374 
375 void drawfoodw(WINDOW *win, struct TFood *pfood, struct TSnake *psnake)
376 {
377     do {
378         pfood->y = random() % (GAMEWIN_YLEN - 1) + 1;
379         pfood->x = random() % (GAMEWIN_XLEN - 1) + 1;
380     } while (False == checkfood(pfood, psnake));
381     checkfood(pfood, psnake);
382     
383     mvwaddch(win, pfood->y, pfood->x, SHAPE_FOOD);
384     wrefresh(win);
385 }
386 
387 TBool checkfood(struct TFood *pfood, struct TSnake *psnake)
388 {
389     struct TSnakeNode *pnode = GetSnakeTail(psnake);
390 
391     int i = 0;
392     for (; i < psnake->length; ++i, pnode = pnode->front)
393         if (pfood->y == pnode->y && pfood->x == pnode->x)
394             return False;
395 
396     return True;
397 }
398 
399 WINDOW* newlogw()
400 {
401     WINDOW *win = newwin(LOGWIN_YLEN, LOGWIN_XLEN, GAMEWIN_YLEN + 2, 3);
402     box(win, 0, 0);
403     mvwprintw(win, 0, 2, " LOG ");
404     wrefresh(win);
405     
406     return win;
407 }
408 
409 void runlog(WINDOW *win, char *str)
410 {
411     static char logbuf[LOGBUF_NUM][LOGBUF_LEN] = {0};
412     static int  index = 0;
413     
414     strcpy(logbuf[index], str);
415     
416     int i = 0;
417     for (; i < LOGBUF_NUM; ++i) {
418         cleanline(win, i+1, 1);
419         mvwprintw(win, i+1, 1, logbuf[(index+i) % LOGBUF_NUM]);
420         wrefresh(win);
421     }
422     
423     index = (index + LOGBUF_NUM - 1) % LOGBUF_NUM;
424 }
425 
426 void cleanline(WINDOW *win, int y, int x)
427 {
428     char EMPTYLINE[LOGBUF_LEN] = {0};
429     memset(EMPTYLINE, ' ', LOGBUF_LEN-1);
430     
431     mvwprintw(win, y, x, EMPTYLINE);
432     wrefresh(win);
433 }

 我在ubuntu10.04下面测试过。

编译方法:

cc -o snake filename.c -lncurses 

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