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