Subversion Repositories HelenOS

Rev

Rev 1466 | Rev 1653 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*  $OpenBSD: scores.c,v 1.11 2006/04/20 03:25:36 ray Exp $ */
  2. /*  $NetBSD: scores.c,v 1.2 1995/04/22 07:42:38 cgd Exp $   */
  3.  
  4. /*-
  5.  * Copyright (c) 1992, 1993
  6.  *  The Regents of the University of California.  All rights reserved.
  7.  *
  8.  * This code is derived from software contributed to Berkeley by
  9.  * Chris Torek and Darren F. Provine.
  10.  *
  11.  * Redistribution and use in source and binary forms, with or without
  12.  * modification, are permitted provided that the following conditions
  13.  * are met:
  14.  * 1. Redistributions of source code must retain the above copyright
  15.  *    notice, this list of conditions and the following disclaimer.
  16.  * 2. Redistributions in binary form must reproduce the above copyright
  17.  *    notice, this list of conditions and the following disclaimer in the
  18.  *    documentation and/or other materials provided with the distribution.
  19.  * 3. Neither the name of the University nor the names of its contributors
  20.  *    may be used to endorse or promote products derived from this software
  21.  *    without specific prior written permission.
  22.  *
  23.  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33.  * SUCH DAMAGE.
  34.  *
  35.  *  @(#)scores.c    8.1 (Berkeley) 5/31/93
  36.  */
  37.  
  38. /*
  39.  * Score code for Tetris, by Darren Provine (kilroy@gboro.glassboro.edu)
  40.  * modified 22 January 1992, to limit the number of entries any one
  41.  * person has.
  42.  *
  43.  * Major whacks since then.
  44.  */
  45. #include <errno.h>
  46. /* #include <err.h> */
  47. /* #include <fcntl.h> */
  48. /* #include <pwd.h> */
  49.  #include <stdio.h>
  50. /* #include <stdlib.h> */
  51. #include <string.h>
  52. /* #include <time.h> */
  53. /* #include <term.h> */
  54. /* #include <unistd.h> */
  55. /* #include <sys/param.h> */
  56. /* #include <sys/stat.h> */
  57. /* #include <sys/types.h> */
  58.  
  59. #include "pathnames.h"
  60. #include "screen.h"
  61. #include "tetris.h"
  62. #include "scores.h"
  63.  
  64. /*
  65.  * Within this code, we can hang onto one extra "high score", leaving
  66.  * room for our current score (whether or not it is high).
  67.  *
  68.  * We also sometimes keep tabs on the "highest" score on each level.
  69.  * As long as the scores are kept sorted, this is simply the first one at
  70.  * that level.
  71.  */
  72. #define NUMSPOTS (MAXHISCORES + 1)
  73. #define NLEVELS (MAXLEVEL + 1)
  74.  
  75. /* static time_t now; */
  76. /* static int nscores; */
  77. /* static int gotscores; */
  78. /* static struct highscore scores[NUMSPOTS]; */
  79. static struct highscore scores[NUMSPOTS];
  80.  
  81. /* static int checkscores(struct highscore *, int); */
  82. /* static int cmpscores(const void *, const void *); */
  83. /* static void getscores(FILE **); */
  84. /* static void printem(int, int, struct highscore *, int, const char *); */
  85. /* static char *thisuser(void); */
  86.  
  87. void showscores(int firstgame)
  88. {
  89.     int i;
  90.    
  91.     clear_screen();
  92.     moveto(10, 0);
  93.     printf("\tRank \tLevel \tName\t                     points\n");
  94.     printf("\t========================================================\n");
  95.     for (i = 0; i < NUMSPOTS - 1; i++) {
  96.         printf("\t%6d %6d %-16s %20d\n", i+1, scores[i].hs_level, scores[i].hs_name, scores[i].hs_score);
  97.     }
  98.     if (!firstgame) {
  99.         printf("\t========================================================\n");
  100.         printf("\t  Last %6d %-16s %20d\n", scores[NUMSPOTS - 1].hs_level, scores[NUMSPOTS - 1].hs_name, scores[NUMSPOTS - 1].hs_score);
  101.     }
  102.     printf("\n\n\n\n\tPress any key to return to main menu.");
  103.     getchar();
  104. }
  105.  
  106. /** Copy from hiscore table score with index src to dest
  107.  *
  108.  */
  109. static void copyhiscore(int dest, int src)
  110. {
  111.     strcpy(scores[dest].hs_name, scores[src].hs_name);
  112.     scores[dest].hs_score = scores[src].hs_score;  
  113.     scores[dest].hs_level = scores[src].hs_level;
  114. }
  115.  
  116. void insertscore(int score, int level)
  117. {
  118.     int i,j;
  119.     int key;
  120.  
  121.    
  122.     clear_screen();
  123.     moveto(10 , 10);
  124.     puts("Insert your name: ");
  125.     strncpy(scores[NUMSPOTS - 1].hs_name, "Player", MAXLOGNAME);
  126.     i = 6;
  127.  
  128.     moveto(10 , 28);
  129.     printf("%s%.*s",scores[NUMSPOTS - 1].hs_name,MAXLOGNAME-i,"........................................");
  130.     key = getchar();   
  131.     while(key != '\n') {
  132.         if (key == '\b') {
  133.             if (i > 0)
  134.                 scores[NUMSPOTS - 1].hs_name[--i] = '\0';  
  135.         } else {
  136.             if (i < (MAXLOGNAME - 1))
  137.                 scores[NUMSPOTS - 1].hs_name[i++] = key;   
  138.                 scores[NUMSPOTS - 1].hs_name[i] = '\0';
  139.         }
  140.        
  141.         moveto(10 , 28);
  142.         printf("%s%.*s",scores[NUMSPOTS - 1].hs_name,MAXLOGNAME-i,"........................................");
  143.    
  144.         key = getchar();   
  145.     }
  146.    
  147.     scores[NUMSPOTS - 1].hs_score = score; 
  148.     scores[NUMSPOTS - 1].hs_level = level;
  149.    
  150.     i = NUMSPOTS-1;
  151.     while ((i > 0) && (scores[i - 1].hs_score < score))
  152.         i--;
  153.  
  154.     for (j = NUMSPOTS - 2; j > i; j--) {
  155.         copyhiscore(j,j-1);
  156.     }
  157.     copyhiscore(i, NUMSPOTS - 1);  
  158. }
  159.  
  160. void initscores(void)
  161. {
  162.     int i;
  163.     for(i = 0; i < NUMSPOTS; i++) {
  164.         strncpy(scores[i].hs_name, "HelenOS Team", MAXLOGNAME);
  165.         scores[i].hs_score = (NUMSPOTS - i) * 200; 
  166.         scores[i].hs_level = (i + 1 > MAXLEVEL?MAXLEVEL:i + 1);
  167.     }
  168. }
  169.  
  170. /*
  171.  * Read the score file.  Can be called from savescore (before showscores)
  172.  * or showscores (if savescore will not be called).  If the given pointer
  173.  * is not NULL, sets *fpp to an open file pointer that corresponds to a
  174.  * read/write score file that is locked with LOCK_EX.  Otherwise, the
  175.  * file is locked with LOCK_SH for the read and closed before return.
  176.  *
  177.  * Note, we assume closing the stdio file releases the lock.
  178.  */
  179. /* static void */
  180. /* getscores(FILE **fpp) */
  181. /* { */
  182. /*  int sd, mint, lck, mask, i; */
  183. /*  char *mstr, *human; */
  184. /*  FILE *sf; */
  185.  
  186. /*  if (fpp != NULL) { */
  187. /*      mint = O_RDWR | O_CREAT; */
  188. /*      mstr = "r+"; */
  189. /*      human = "read/write"; */
  190. /*      lck = LOCK_EX; */
  191. /*  } else { */
  192. /*      mint = O_RDONLY; */
  193. /*      mstr = "r"; */
  194. /*      human = "reading"; */
  195. /*      lck = LOCK_SH; */
  196. /*  } */
  197. /*  setegid(egid); */
  198. /*  mask = umask(S_IWOTH); */
  199. /*  sd = open(_PATH_SCOREFILE, mint, 0666); */
  200. /*  (void)umask(mask); */
  201. /*  setegid(gid); */
  202. /*  if (sd < 0) { */
  203. /*      if (fpp == NULL) { */
  204. /*          nscores = 0; */
  205. /*          return; */
  206. /*      } */
  207. /*      err(1, "cannot open %s for %s", _PATH_SCOREFILE, human); */
  208. /*  } */
  209. /*  setegid(egid); */
  210. /*  if ((sf = fdopen(sd, mstr)) == NULL) */
  211. /*      err(1, "cannot fdopen %s for %s", _PATH_SCOREFILE, human); */
  212. /*  setegid(gid); */
  213.  
  214. /*  /\* */
  215. /*   * Grab a lock. */
  216. /*   *\/ */
  217. /*  if (flock(sd, lck)) */
  218. /*      warn("warning: score file %s cannot be locked", */
  219. /*          _PATH_SCOREFILE); */
  220.  
  221. /*  nscores = fread(scores, sizeof(scores[0]), MAXHISCORES, sf); */
  222. /*  if (ferror(sf)) */
  223. /*      err(1, "error reading %s", _PATH_SCOREFILE); */
  224. /*  for (i = 0; i < nscores; i++) */
  225. /*      if (scores[i].hs_level < MINLEVEL || */
  226. /*          scores[i].hs_level > MAXLEVEL) */
  227. /*          errx(1, "scorefile %s corrupt", _PATH_SCOREFILE); */
  228.  
  229. /*  if (fpp) */
  230. /*      *fpp = sf; */
  231. /*  else */
  232. /*      (void)fclose(sf); */
  233. /* } */
  234.  
  235. void
  236. savescore(int level)
  237. {
  238.     return;
  239. }
  240. /*  struct highscore *sp; */
  241. /*  int i; */
  242. /*  int change; */
  243. /*  FILE *sf; */
  244. /*  const char *me; */
  245.  
  246. /*  getscores(&sf); */
  247. /*  gotscores = 1; */
  248. /*  (void)time(&now); */
  249.  
  250. /*  /\* */
  251. /*   * Allow at most one score per person per level -- see if we */
  252. /*   * can replace an existing score, or (easiest) do nothing. */
  253. /*   * Otherwise add new score at end (there is always room). */
  254. /*   *\/ */
  255. /*  change = 0; */
  256. /*  me = thisuser(); */
  257. /*  for (i = 0, sp = &scores[0]; i < nscores; i++, sp++) { */
  258. /*      if (sp->hs_level != level || strcmp(sp->hs_name, me) != 0) */
  259. /*          continue; */
  260. /*      if (score > sp->hs_score) { */
  261. /*          (void)printf("%s bettered %s %d score of %d!\n", */
  262. /*              "\nYou", "your old level", level, */
  263. /*              sp->hs_score * sp->hs_level); */
  264. /*          sp->hs_score = score;   /\* new score *\/ */
  265. /*          sp->hs_time = now;  /\* and time *\/ */
  266. /*          change = 1; */
  267. /*      } else if (score == sp->hs_score) { */
  268. /*          (void)printf("%s tied %s %d high score.\n", */
  269. /*              "\nYou", "your old level", level); */
  270. /*          sp->hs_time = now;  /\* renew it *\/ */
  271. /*          change = 1;     /\* gotta rewrite, sigh *\/ */
  272. /*      } /\* else new score < old score: do nothing *\/ */
  273. /*      break; */
  274. /*  } */
  275. /*  if (i >= nscores) { */
  276. /*      strlcpy(sp->hs_name, me, sizeof sp->hs_name); */
  277. /*      sp->hs_level = level; */
  278. /*      sp->hs_score = score; */
  279. /*      sp->hs_time = now; */
  280. /*      nscores++; */
  281. /*      change = 1; */
  282. /*  } */
  283.  
  284. /*  if (change) { */
  285. /*      /\* */
  286. /*       * Sort & clean the scores, then rewrite. */
  287. /*       *\/ */
  288. /*      nscores = checkscores(scores, nscores); */
  289. /*      rewind(sf); */
  290. /*      if (fwrite(scores, sizeof(*sp), nscores, sf) != nscores || */
  291. /*          fflush(sf) == EOF) */
  292. /*          warnx("error writing %s: %s\n\t-- %s", */
  293. /*              _PATH_SCOREFILE, strerror(errno), */
  294. /*              "high scores may be damaged"); */
  295. /*  } */
  296. /*  (void)fclose(sf);   /\* releases lock *\/ */
  297. /* } */
  298.  
  299. /*
  300.  * Get login name, or if that fails, get something suitable.
  301.  * The result is always trimmed to fit in a score.
  302.  */
  303. /* static char * */
  304. /* thisuser(void) */
  305. /* { */
  306. /*  const char *p; */
  307. /*  struct passwd *pw; */
  308. /*  static char u[sizeof(scores[0].hs_name)]; */
  309.  
  310. /*  if (u[0]) */
  311. /*      return (u); */
  312. /*  p = getlogin(); */
  313. /*  if (p == NULL || *p == '\0') { */
  314. /*      pw = getpwuid(getuid()); */
  315. /*      if (pw != NULL) */
  316. /*          p = pw->pw_name; */
  317. /*      else */
  318. /*          p = "  ???"; */
  319. /*  } */
  320. /*  strlcpy(u, p, sizeof(u)); */
  321. /*  return (u); */
  322. /* } */
  323.  
  324. /*
  325.  * Score comparison function for qsort.
  326.  *
  327.  * If two scores are equal, the person who had the score first is
  328.  * listed first in the highscore file.
  329.  */
  330. /* static int */
  331. /* cmpscores(const void *x, const void *y) */
  332. /* { */
  333. /*  const struct highscore *a, *b; */
  334. /*  long l; */
  335.  
  336. /*  a = x; */
  337. /*  b = y; */
  338. /*  l = (long)b->hs_level * b->hs_score - (long)a->hs_level * a->hs_score; */
  339. /*  if (l < 0) */
  340. /*      return (-1); */
  341. /*  if (l > 0) */
  342. /*      return (1); */
  343. /*  if (a->hs_time < b->hs_time) */
  344. /*      return (-1); */
  345. /*  if (a->hs_time > b->hs_time) */
  346. /*      return (1); */
  347. /*  return (0); */
  348. /* } */
  349.  
  350. /*
  351.  * If we've added a score to the file, we need to check the file and ensure
  352.  * that this player has only a few entries.  The number of entries is
  353.  * controlled by MAXSCORES, and is to ensure that the highscore file is not
  354.  * monopolised by just a few people.  People who no longer have accounts are
  355.  * only allowed the highest score.  Scores older than EXPIRATION seconds are
  356.  * removed, unless they are someone's personal best.
  357.  * Caveat:  the highest score on each level is always kept.
  358.  */
  359. /* static int */
  360. /* checkscores(struct highscore *hs, int num) */
  361. /* { */
  362. /*  struct highscore *sp; */
  363. /*  int i, j, k, numnames; */
  364. /*  int levelfound[NLEVELS]; */
  365. /*  struct peruser { */
  366. /*      char *name; */
  367. /*      int times; */
  368. /*  } count[NUMSPOTS]; */
  369. /*  struct peruser *pu; */
  370.  
  371. /*  /\* */
  372. /*   * Sort so that highest totals come first. */
  373. /*   * */
  374. /*   * levelfound[i] becomes set when the first high score for that */
  375. /*   * level is encountered.  By definition this is the highest score. */
  376. /*   *\/ */
  377. /*  qsort((void *)hs, nscores, sizeof(*hs), cmpscores); */
  378. /*  for (i = MINLEVEL; i < NLEVELS; i++) */
  379. /*      levelfound[i] = 0; */
  380. /*  numnames = 0; */
  381. /*  for (i = 0, sp = hs; i < num;) { */
  382. /*      /\* */
  383. /*       * This is O(n^2), but do you think we care? */
  384. /*       *\/ */
  385. /*      for (j = 0, pu = count; j < numnames; j++, pu++) */
  386. /*          if (strcmp(sp->hs_name, pu->name) == 0) */
  387. /*              break; */
  388. /*      if (j == numnames) { */
  389. /*          /\* */
  390. /*           * Add new user, set per-user count to 1. */
  391. /*           *\/ */
  392. /*          pu->name = sp->hs_name; */
  393. /*          pu->times = 1; */
  394. /*          numnames++; */
  395. /*      } else { */
  396. /*          /\* */
  397. /*           * Two ways to keep this score: */
  398. /*           * - Not too many (per user), still has acct, & */
  399. /*           *  score not dated; or */
  400. /*           * - High score on this level. */
  401. /*           *\/ */
  402. /*          if ((pu->times < MAXSCORES && */
  403. /*               getpwnam(sp->hs_name) != NULL && */
  404. /*               sp->hs_time + EXPIRATION >= now) || */
  405. /*              levelfound[sp->hs_level] == 0) */
  406. /*              pu->times++; */
  407. /*          else { */
  408. /*              /\* */
  409. /*               * Delete this score, do not count it, */
  410. /*               * do not pass go, do not collect $200. */
  411. /*               *\/ */
  412. /*              num--; */
  413. /*              for (k = i; k < num; k++) */
  414. /*                  hs[k] = hs[k + 1]; */
  415. /*              continue; */
  416. /*          } */
  417. /*      } */
  418. /*      levelfound[sp->hs_level] = 1; */
  419. /*      i++, sp++; */
  420. /*  } */
  421. /*  return (num > MAXHISCORES ? MAXHISCORES : num); */
  422. /* } */
  423.  
  424. /*
  425.  * Show current scores.  This must be called after savescore, if
  426.  * savescore is called at all, for two reasons:
  427.  * - Showscores munches the time field.
  428.  * - Even if that were not the case, a new score must be recorded
  429.  *   before it can be shown anyway.
  430.  */
  431. /*
  432. void
  433. showscores(int level)
  434. {
  435.     return;
  436. }
  437. */
  438. /*  struct highscore *sp; */
  439. /*  int i, n, c; */
  440. /*  const char *me; */
  441. /*  int levelfound[NLEVELS]; */
  442.  
  443. /*  if (!gotscores) */
  444. /*      getscores((FILE **)NULL); */
  445. /*  (void)printf("\n\t\t    Tetris High Scores\n"); */
  446.  
  447. /*  /\* */
  448. /*   * If level == 0, the person has not played a game but just asked for */
  449. /*   * the high scores; we do not need to check for printing in highlight */
  450. /*   * mode.  If SOstr is null, we can't do highlighting anyway. */
  451. /*   *\/ */
  452. /*  me = level && SOstr ? thisuser() : NULL; */
  453.  
  454. /*  /\* */
  455. /*   * Set times to 0 except for high score on each level. */
  456. /*   *\/ */
  457. /*  for (i = MINLEVEL; i < NLEVELS; i++) */
  458. /*      levelfound[i] = 0; */
  459. /*  for (i = 0, sp = scores; i < nscores; i++, sp++) { */
  460. /*      if (levelfound[sp->hs_level]) */
  461. /*          sp->hs_time = 0; */
  462. /*      else { */
  463. /*          sp->hs_time = 1; */
  464. /*          levelfound[sp->hs_level] = 1; */
  465. /*      } */
  466. /*  } */
  467.  
  468. /*  /\* */
  469. /*   * Page each screenful of scores. */
  470. /*   *\/ */
  471. /*  for (i = 0, sp = scores; i < nscores; sp += n) { */
  472. /*      n = 20; */
  473. /*      if (i + n > nscores) */
  474. /*          n = nscores - i; */
  475. /*      printem(level, i + 1, sp, n, me); */
  476. /*      if ((i += n) < nscores) { */
  477. /*          (void)printf("\nHit RETURN to continue."); */
  478. /*          (void)fflush(stdout); */
  479. /*          while ((c = getchar()) != '\n') */
  480. /*              if (c == EOF) */
  481. /*                  break; */
  482. /*          (void)printf("\n"); */
  483. /*      } */
  484. /*  } */
  485.  
  486. /*  if (nscores == 0) */
  487. /*      printf("\t\t\t      - none to date.\n"); */
  488. /* } */
  489.  
  490. /* static void */
  491. /* printem(int level, int offset, struct highscore *hs, int n, const char *me) */
  492. /* { */
  493. /*  struct highscore *sp; */
  494. /*  int row, highlight, i; */
  495. /*  char buf[100]; */
  496. /* #define  TITLE "Rank  Score   Name                          (points/level)" */
  497. /* #define  TITL2 "==========================================================" */
  498.  
  499. /*  printf("%s\n%s\n", TITLE, TITL2); */
  500.  
  501. /*  highlight = 0; */
  502.  
  503. /*  for (row = 0; row < n; row++) { */
  504. /*      sp = &hs[row]; */
  505. /*      (void)snprintf(buf, sizeof(buf), */
  506. /*          "%3d%c %6d  %-31s (%6d on %d)\n", */
  507. /*          row + offset, sp->hs_time ? '*' : ' ', */
  508. /*          sp->hs_score * sp->hs_level, */
  509. /*          sp->hs_name, sp->hs_score, sp->hs_level); */
  510. /*      /\* Print leaders every three lines *\/ */
  511. /*      if ((row + 1) % 3 == 0) { */
  512. /*          for (i = 0; i < sizeof(buf); i++) */
  513. /*              if (buf[i] == ' ') */
  514. /*                  buf[i] = '_'; */
  515. /*      } */
  516. /*      /\* */
  517. /*       * Highlight if appropriate.  This works because */
  518. /*       * we only get one score per level. */
  519. /*       *\/ */
  520. /*      if (me != NULL && */
  521. /*          sp->hs_level == level && */
  522. /*          sp->hs_score == score && */
  523. /*          strcmp(sp->hs_name, me) == 0) { */
  524. /*          putpad(SOstr); */
  525. /*          highlight = 1; */
  526. /*      } */
  527. /*      (void)printf("%s", buf); */
  528. /*      if (highlight) { */
  529. /*          putpad(SEstr); */
  530. /*          highlight = 0; */
  531. /*      } */
  532. /*  } */
  533. /* } */
  534.