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  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. /** @addtogroup tetris
  39.  * @{
  40.  */
  41. /** @file
  42.  */
  43.  
  44. /*
  45.  * Score code for Tetris, by Darren Provine (kilroy@gboro.glassboro.edu)
  46.  * modified 22 January 1992, to limit the number of entries any one
  47.  * person has.
  48.  *
  49.  * Major whacks since then.
  50.  */
  51. #include <errno.h>
  52. /* #include <err.h> */
  53. /* #include <fcntl.h> */
  54. /* #include <pwd.h> */
  55. #include <stdio.h>
  56. /* #include <stdlib.h> */
  57. #include <string.h>
  58. #include <kbd/kbd.h>
  59. #include <kbd/keycode.h>
  60. #include <stdlib.h>
  61. /* #include <time.h> */
  62. /* #include <term.h> */
  63. /* #include <unistd.h> */
  64. /* #include <sys/param.h> */
  65. /* #include <sys/stat.h> */
  66. /* #include <sys/types.h> */
  67.  
  68. #include "pathnames.h"
  69. #include "screen.h"
  70. #include "tetris.h"
  71. #include "scores.h"
  72.  
  73. /*
  74.  * Within this code, we can hang onto one extra "high score", leaving
  75.  * room for our current score (whether or not it is high).
  76.  *
  77.  * We also sometimes keep tabs on the "highest" score on each level.
  78.  * As long as the scores are kept sorted, this is simply the first one at
  79.  * that level.
  80.  */
  81. #define NUMSPOTS (MAXHISCORES + 1)
  82. #define NLEVELS (MAXLEVEL + 1)
  83.  
  84. /* static time_t now; */
  85. /* static int nscores; */
  86. /* static int gotscores; */
  87. /* static struct highscore scores[NUMSPOTS]; */
  88. static struct highscore scores[NUMSPOTS];
  89.  
  90. /* static int checkscores(struct highscore *, int); */
  91. /* static int cmpscores(const void *, const void *); */
  92. /* static void getscores(FILE **); */
  93. /* static void printem(int, int, struct highscore *, int, const char *); */
  94. /* static char *thisuser(void); */
  95.  
  96. void showscores(int firstgame)
  97. {
  98.     int i;
  99.    
  100.     clear_screen();
  101.     moveto(10, 0);
  102.     printf("\tRank \tLevel \tName\t                     points\n");
  103.     printf("\t========================================================\n");
  104.     for (i = 0; i < NUMSPOTS - 1; i++) {
  105.         printf("\t%6d %6d %-16s %20d\n", i+1, scores[i].hs_level, scores[i].hs_name, scores[i].hs_score);
  106.     }
  107.     if (!firstgame) {
  108.         printf("\t========================================================\n");
  109.         printf("\t  Last %6d %-16s %20d\n", scores[NUMSPOTS - 1].hs_level, scores[NUMSPOTS - 1].hs_name, scores[NUMSPOTS - 1].hs_score);
  110.     }
  111.     printf("\n\n\n\n\tPress any key to return to main menu.");
  112.     getchar();
  113. }
  114.  
  115. /** Copy from hiscore table score with index src to dest
  116.  *
  117.  */
  118. static void copyhiscore(int dest, int src)
  119. {
  120.     str_cpy(scores[dest].hs_name, STR_BOUNDS(MAXLOGNAME) + 1,
  121.         scores[src].hs_name);
  122.     scores[dest].hs_score = scores[src].hs_score;  
  123.     scores[dest].hs_level = scores[src].hs_level;
  124. }
  125.  
  126. void insertscore(int score, int level)
  127. {
  128.     int i,j;
  129.     size_t off;
  130.     kbd_event_t ev;
  131.    
  132.     clear_screen();
  133.     moveto(10 , 10);
  134.     puts("Insert your name: ");
  135.     str_cpy(scores[NUMSPOTS - 1].hs_name, STR_BOUNDS(MAXLOGNAME) + 1,
  136.         "Player");
  137.     i = 6; off = 6;
  138.  
  139.     moveto(10 , 28);
  140.     printf("%s%.*s",scores[NUMSPOTS - 1].hs_name,MAXLOGNAME-i,"........................................");
  141.  
  142.     while (1) {
  143.         fflush(stdout);
  144.         if (kbd_get_event(&ev) != EOK)
  145.             exit(1);
  146.  
  147.         if (ev.type == KE_RELEASE)
  148.             continue;
  149.  
  150.         if (ev.key == KC_ENTER || ev.key == KC_NENTER)
  151.             break;
  152.  
  153.         if (ev.key == KC_BACKSPACE) {
  154.             if (i > 0) {
  155.                 wchar_t uc;
  156.  
  157.                 --i;
  158.                 while (off > 0) {
  159.                     --off;
  160.                     size_t otmp = off;
  161.                     uc = str_decode(scores[NUMSPOTS - 1].hs_name,
  162.                         &otmp, STR_BOUNDS(MAXLOGNAME) + 1);
  163.                     if (uc != U_SPECIAL)
  164.                         break;
  165.                 }
  166.  
  167.                 scores[NUMSPOTS - 1].hs_name[off] = '\0';
  168.             }
  169.         } else if (ev.c != '\0') {
  170.             if (i < (MAXLOGNAME - 1)) {
  171.                 if (chr_encode(ev.c, scores[NUMSPOTS - 1].hs_name,
  172.                     &off, STR_BOUNDS(MAXLOGNAME) + 1) == EOK) {
  173.                     ++i;
  174.                 }
  175.                 scores[NUMSPOTS - 1].hs_name[off] = '\0';
  176.             }
  177.         }
  178.        
  179.         moveto(10 , 28);
  180.         printf("%s%.*s",scores[NUMSPOTS - 1].hs_name,MAXLOGNAME-i,"........................................");
  181.     }
  182.    
  183.     scores[NUMSPOTS - 1].hs_score = score; 
  184.     scores[NUMSPOTS - 1].hs_level = level;
  185.    
  186.     i = NUMSPOTS-1;
  187.     while ((i > 0) && (scores[i - 1].hs_score < score))
  188.         i--;
  189.  
  190.     for (j = NUMSPOTS - 2; j > i; j--) {
  191.         copyhiscore(j,j-1);
  192.     }
  193.     copyhiscore(i, NUMSPOTS - 1);  
  194. }
  195.  
  196. void initscores(void)
  197. {
  198.     int i;
  199.     for(i = 0; i < NUMSPOTS; i++) {
  200.         str_cpy(scores[i].hs_name, STR_BOUNDS(MAXLOGNAME) + 1, "HelenOS Team");
  201.         scores[i].hs_score = (NUMSPOTS - i) * 200; 
  202.         scores[i].hs_level = (i + 1 > MAXLEVEL?MAXLEVEL:i + 1);
  203.     }
  204. }
  205.  
  206. /*
  207.  * Read the score file.  Can be called from savescore (before showscores)
  208.  * or showscores (if savescore will not be called).  If the given pointer
  209.  * is not NULL, sets *fpp to an open file pointer that corresponds to a
  210.  * read/write score file that is locked with LOCK_EX.  Otherwise, the
  211.  * file is locked with LOCK_SH for the read and closed before return.
  212.  *
  213.  * Note, we assume closing the stdio file releases the lock.
  214.  */
  215. /* static void */
  216. /* getscores(FILE **fpp) */
  217. /* { */
  218. /*  int sd, mint, lck, mask, i; */
  219. /*  char *mstr, *human; */
  220. /*  FILE *sf; */
  221.  
  222. /*  if (fpp != NULL) { */
  223. /*      mint = O_RDWR | O_CREAT; */
  224. /*      mstr = "r+"; */
  225. /*      human = "read/write"; */
  226. /*      lck = LOCK_EX; */
  227. /*  } else { */
  228. /*      mint = O_RDONLY; */
  229. /*      mstr = "r"; */
  230. /*      human = "reading"; */
  231. /*      lck = LOCK_SH; */
  232. /*  } */
  233. /*  setegid(egid); */
  234. /*  mask = umask(S_IWOTH); */
  235. /*  sd = open(_PATH_SCOREFILE, mint, 0666); */
  236. /*  (void)umask(mask); */
  237. /*  setegid(gid); */
  238. /*  if (sd < 0) { */
  239. /*      if (fpp == NULL) { */
  240. /*          nscores = 0; */
  241. /*          return; */
  242. /*      } */
  243. /*      err(1, "cannot open %s for %s", _PATH_SCOREFILE, human); */
  244. /*  } */
  245. /*  setegid(egid); */
  246. /*  if ((sf = fdopen(sd, mstr)) == NULL) */
  247. /*      err(1, "cannot fdopen %s for %s", _PATH_SCOREFILE, human); */
  248. /*  setegid(gid); */
  249.  
  250. /*  /\* */
  251. /*   * Grab a lock. */
  252. /*   *\/ */
  253. /*  if (flock(sd, lck)) */
  254. /*      warn("warning: score file %s cannot be locked", */
  255. /*          _PATH_SCOREFILE); */
  256.  
  257. /*  nscores = fread(scores, sizeof(scores[0]), MAXHISCORES, sf); */
  258. /*  if (ferror(sf)) */
  259. /*      err(1, "error reading %s", _PATH_SCOREFILE); */
  260. /*  for (i = 0; i < nscores; i++) */
  261. /*      if (scores[i].hs_level < MINLEVEL || */
  262. /*          scores[i].hs_level > MAXLEVEL) */
  263. /*          errx(1, "scorefile %s corrupt", _PATH_SCOREFILE); */
  264.  
  265. /*  if (fpp) */
  266. /*      *fpp = sf; */
  267. /*  else */
  268. /*      (void)fclose(sf); */
  269. /* } */
  270.  
  271. void
  272. savescore(int level)
  273. {
  274.     return;
  275. }
  276. /*  struct highscore *sp; */
  277. /*  int i; */
  278. /*  int change; */
  279. /*  FILE *sf; */
  280. /*  const char *me; */
  281.  
  282. /*  getscores(&sf); */
  283. /*  gotscores = 1; */
  284. /*  (void)time(&now); */
  285.  
  286. /*  /\* */
  287. /*   * Allow at most one score per person per level -- see if we */
  288. /*   * can replace an existing score, or (easiest) do nothing. */
  289. /*   * Otherwise add new score at end (there is always room). */
  290. /*   *\/ */
  291. /*  change = 0; */
  292. /*  me = thisuser(); */
  293. /*  for (i = 0, sp = &scores[0]; i < nscores; i++, sp++) { */
  294. /*      if (sp->hs_level != level || str_cmp(sp->hs_name, me) != 0) */
  295. /*          continue; */
  296. /*      if (score > sp->hs_score) { */
  297. /*          (void)printf("%s bettered %s %d score of %d!\n", */
  298. /*              "\nYou", "your old level", level, */
  299. /*              sp->hs_score * sp->hs_level); */
  300. /*          sp->hs_score = score;   /\* new score *\/ */
  301. /*          sp->hs_time = now;  /\* and time *\/ */
  302. /*          change = 1; */
  303. /*      } else if (score == sp->hs_score) { */
  304. /*          (void)printf("%s tied %s %d high score.\n", */
  305. /*              "\nYou", "your old level", level); */
  306. /*          sp->hs_time = now;  /\* renew it *\/ */
  307. /*          change = 1;     /\* gotta rewrite, sigh *\/ */
  308. /*      } /\* else new score < old score: do nothing *\/ */
  309. /*      break; */
  310. /*  } */
  311. /*  if (i >= nscores) { */
  312. /*      strlcpy(sp->hs_name, me, sizeof sp->hs_name); */
  313. /*      sp->hs_level = level; */
  314. /*      sp->hs_score = score; */
  315. /*      sp->hs_time = now; */
  316. /*      nscores++; */
  317. /*      change = 1; */
  318. /*  } */
  319.  
  320. /*  if (change) { */
  321. /*      /\* */
  322. /*       * Sort & clean the scores, then rewrite. */
  323. /*       *\/ */
  324. /*      nscores = checkscores(scores, nscores); */
  325. /*      rewind(sf); */
  326. /*      if (fwrite(scores, sizeof(*sp), nscores, sf) != nscores || */
  327. /*          fflush(sf) == EOF) */
  328. /*          warnx("error writing %s: %s\n\t-- %s", */
  329. /*              _PATH_SCOREFILE, strerror(errno), */
  330. /*              "high scores may be damaged"); */
  331. /*  } */
  332. /*  (void)fclose(sf);   /\* releases lock *\/ */
  333. /* } */
  334.  
  335. /*
  336.  * Get login name, or if that fails, get something suitable.
  337.  * The result is always trimmed to fit in a score.
  338.  */
  339. /* static char * */
  340. /* thisuser(void) */
  341. /* { */
  342. /*  const char *p; */
  343. /*  struct passwd *pw; */
  344. /*  static char u[sizeof(scores[0].hs_name)]; */
  345.  
  346. /*  if (u[0]) */
  347. /*      return (u); */
  348. /*  p = getlogin(); */
  349. /*  if (p == NULL || *p == '\0') { */
  350. /*      pw = getpwuid(getuid()); */
  351. /*      if (pw != NULL) */
  352. /*          p = pw->pw_name; */
  353. /*      else */
  354. /*          p = "  ???"; */
  355. /*  } */
  356. /*  strlcpy(u, p, sizeof(u)); */
  357. /*  return (u); */
  358. /* } */
  359.  
  360. /*
  361.  * Score comparison function for qsort.
  362.  *
  363.  * If two scores are equal, the person who had the score first is
  364.  * listed first in the highscore file.
  365.  */
  366. /* static int */
  367. /* cmpscores(const void *x, const void *y) */
  368. /* { */
  369. /*  const struct highscore *a, *b; */
  370. /*  long l; */
  371.  
  372. /*  a = x; */
  373. /*  b = y; */
  374. /*  l = (long)b->hs_level * b->hs_score - (long)a->hs_level * a->hs_score; */
  375. /*  if (l < 0) */
  376. /*      return (-1); */
  377. /*  if (l > 0) */
  378. /*      return (1); */
  379. /*  if (a->hs_time < b->hs_time) */
  380. /*      return (-1); */
  381. /*  if (a->hs_time > b->hs_time) */
  382. /*      return (1); */
  383. /*  return (0); */
  384. /* } */
  385.  
  386. /*
  387.  * If we've added a score to the file, we need to check the file and ensure
  388.  * that this player has only a few entries.  The number of entries is
  389.  * controlled by MAXSCORES, and is to ensure that the highscore file is not
  390.  * monopolised by just a few people.  People who no longer have accounts are
  391.  * only allowed the highest score.  Scores older than EXPIRATION seconds are
  392.  * removed, unless they are someone's personal best.
  393.  * Caveat:  the highest score on each level is always kept.
  394.  */
  395. /* static int */
  396. /* checkscores(struct highscore *hs, int num) */
  397. /* { */
  398. /*  struct highscore *sp; */
  399. /*  int i, j, k, numnames; */
  400. /*  int levelfound[NLEVELS]; */
  401. /*  struct peruser { */
  402. /*      char *name; */
  403. /*      int times; */
  404. /*  } count[NUMSPOTS]; */
  405. /*  struct peruser *pu; */
  406.  
  407. /*  /\* */
  408. /*   * Sort so that highest totals come first. */
  409. /*   * */
  410. /*   * levelfound[i] becomes set when the first high score for that */
  411. /*   * level is encountered.  By definition this is the highest score. */
  412. /*   *\/ */
  413. /*  qsort((void *)hs, nscores, sizeof(*hs), cmpscores); */
  414. /*  for (i = MINLEVEL; i < NLEVELS; i++) */
  415. /*      levelfound[i] = 0; */
  416. /*  numnames = 0; */
  417. /*  for (i = 0, sp = hs; i < num;) { */
  418. /*      /\* */
  419. /*       * This is O(n^2), but do you think we care? */
  420. /*       *\/ */
  421. /*      for (j = 0, pu = count; j < numnames; j++, pu++) */
  422. /*          if (str_cmp(sp->hs_name, pu->name) == 0) */
  423. /*              break; */
  424. /*      if (j == numnames) { */
  425. /*          /\* */
  426. /*           * Add new user, set per-user count to 1. */
  427. /*           *\/ */
  428. /*          pu->name = sp->hs_name; */
  429. /*          pu->times = 1; */
  430. /*          numnames++; */
  431. /*      } else { */
  432. /*          /\* */
  433. /*           * Two ways to keep this score: */
  434. /*           * - Not too many (per user), still has acct, & */
  435. /*           *  score not dated; or */
  436. /*           * - High score on this level. */
  437. /*           *\/ */
  438. /*          if ((pu->times < MAXSCORES && */
  439. /*               getpwnam(sp->hs_name) != NULL && */
  440. /*               sp->hs_time + EXPIRATION >= now) || */
  441. /*              levelfound[sp->hs_level] == 0) */
  442. /*              pu->times++; */
  443. /*          else { */
  444. /*              /\* */
  445. /*               * Delete this score, do not count it, */
  446. /*               * do not pass go, do not collect $200. */
  447. /*               *\/ */
  448. /*              num--; */
  449. /*              for (k = i; k < num; k++) */
  450. /*                  hs[k] = hs[k + 1]; */
  451. /*              continue; */
  452. /*          } */
  453. /*      } */
  454. /*      levelfound[sp->hs_level] = 1; */
  455. /*      i++, sp++; */
  456. /*  } */
  457. /*  return (num > MAXHISCORES ? MAXHISCORES : num); */
  458. /* } */
  459.  
  460. /*
  461.  * Show current scores.  This must be called after savescore, if
  462.  * savescore is called at all, for two reasons:
  463.  * - Showscores munches the time field.
  464.  * - Even if that were not the case, a new score must be recorded
  465.  *   before it can be shown anyway.
  466.  */
  467. /*
  468. void
  469. showscores(int level)
  470. {
  471.     return;
  472. }
  473. */
  474. /*  struct highscore *sp; */
  475. /*  int i, n, c; */
  476. /*  const char *me; */
  477. /*  int levelfound[NLEVELS]; */
  478.  
  479. /*  if (!gotscores) */
  480. /*      getscores((FILE **)NULL); */
  481. /*  (void)printf("\n\t\t    Tetris High Scores\n"); */
  482.  
  483. /*  /\* */
  484. /*   * If level == 0, the person has not played a game but just asked for */
  485. /*   * the high scores; we do not need to check for printing in highlight */
  486. /*   * mode.  If SOstr is null, we can't do highlighting anyway. */
  487. /*   *\/ */
  488. /*  me = level && SOstr ? thisuser() : NULL; */
  489.  
  490. /*  /\* */
  491. /*   * Set times to 0 except for high score on each level. */
  492. /*   *\/ */
  493. /*  for (i = MINLEVEL; i < NLEVELS; i++) */
  494. /*      levelfound[i] = 0; */
  495. /*  for (i = 0, sp = scores; i < nscores; i++, sp++) { */
  496. /*      if (levelfound[sp->hs_level]) */
  497. /*          sp->hs_time = 0; */
  498. /*      else { */
  499. /*          sp->hs_time = 1; */
  500. /*          levelfound[sp->hs_level] = 1; */
  501. /*      } */
  502. /*  } */
  503.  
  504. /*  /\* */
  505. /*   * Page each screenful of scores. */
  506. /*   *\/ */
  507. /*  for (i = 0, sp = scores; i < nscores; sp += n) { */
  508. /*      n = 20; */
  509. /*      if (i + n > nscores) */
  510. /*          n = nscores - i; */
  511. /*      printem(level, i + 1, sp, n, me); */
  512. /*      if ((i += n) < nscores) { */
  513. /*          (void)printf("\nHit RETURN to continue."); */
  514. /*          (void)fflush(stdout); */
  515. /*          while ((c = getchar()) != '\n') */
  516. /*              if (c == EOF) */
  517. /*                  break; */
  518. /*          (void)printf("\n"); */
  519. /*      } */
  520. /*  } */
  521.  
  522. /*  if (nscores == 0) */
  523. /*      printf("\t\t\t      - none to date.\n"); */
  524. /* } */
  525.  
  526. /* static void */
  527. /* printem(int level, int offset, struct highscore *hs, int n, const char *me) */
  528. /* { */
  529. /*  struct highscore *sp; */
  530. /*  int row, highlight, i; */
  531. /*  char buf[100]; */
  532. /* #define  TITLE "Rank  Score   Name                          (points/level)" */
  533. /* #define  TITL2 "==========================================================" */
  534.  
  535. /*  printf("%s\n%s\n", TITLE, TITL2); */
  536.  
  537. /*  highlight = 0; */
  538.  
  539. /*  for (row = 0; row < n; row++) { */
  540. /*      sp = &hs[row]; */
  541. /*      (void)snprintf(buf, sizeof(buf), */
  542. /*          "%3d%c %6d  %-31s (%6d on %d)\n", */
  543. /*          row + offset, sp->hs_time ? '*' : ' ', */
  544. /*          sp->hs_score * sp->hs_level, */
  545. /*          sp->hs_name, sp->hs_score, sp->hs_level); */
  546. /*      /\* Print leaders every three lines *\/ */
  547. /*      if ((row + 1) % 3 == 0) { */
  548. /*          for (i = 0; i < sizeof(buf); i++) */
  549. /*              if (buf[i] == ' ') */
  550. /*                  buf[i] = '_'; */
  551. /*      } */
  552. /*      /\* */
  553. /*       * Highlight if appropriate.  This works because */
  554. /*       * we only get one score per level. */
  555. /*       *\/ */
  556. /*      if (me != NULL && */
  557. /*          sp->hs_level == level && */
  558. /*          sp->hs_score == score && */
  559. /*          str_cmp(sp->hs_name, me) == 0) { */
  560. /*          putpad(SOstr); */
  561. /*          highlight = 1; */
  562. /*      } */
  563. /*      (void)printf("%s", buf); */
  564. /*      if (highlight) { */
  565. /*          putpad(SEstr); */
  566. /*          highlight = 0; */
  567. /*      } */
  568. /*  } */
  569. /* } */
  570.  
  571. /** @}
  572.  */
  573.  
  574.