ball/level.c

   1 /*
   2  * Copyright (C) 2003 Robert Kooima
   3  *
   4  * NEVERBALL is  free software; you can redistribute  it and/or modify
   5  * it under the  terms of the GNU General  Public License as published
   6  * by the Free  Software Foundation; either version 2  of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT  ANY  WARRANTY;  without   even  the  implied  warranty  of
  11  * MERCHANTABILITY or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #include <stdio.h>
  16 #include <string.h>
  17 #include <math.h>
  18
  19 #include "level.h"
  20 #include "glext.h"
  21 #include "image.h"
  22 #include "game.h"
  23 #include "geom.h"
  24 #include "demo.h"
  25 #include "hud.h"
  26 #include "audio.h"
  27 #include "config.h"
  28
  29 /*---------------------------------------------------------------------------*/
  30
  31 struct score
  32 {
  33     char time_n[4][MAXNAM];
  34     int  time_t[4];
  35     int  time_c[4];
  36
  37     char coin_n[4][MAXNAM];
  38     int  coin_t[4];
  39     int  coin_c[4];
  40 };
  41
  42 struct level
  43 {
  44     char file[MAXSTR];
  45     char back[MAXSTR];
  46     char grad[MAXSTR];
  47     char shot[MAXSTR];
  48     char song[MAXSTR];
  49     int  time;
  50     int  goal;
  51
  52     GLuint text;
  53 };
  54
  55 static int score;                       /* Current coin total         */
  56 static int coins;                       /* Current coin count         */
  57 static int balls;                       /* Current life count         */
  58 static int goal;                        /* Current goal count         */
  59
  60 static int level;                       /* Current level number       */
  61 static int count;                       /* Number of levels           */
  62 static int limit;                       /* Last opened (locked) level */
  63 static int status;                      /* Status of current level    */
  64
  65 static int level_total;
  66 static int coins_total;
  67 static int times_total;
  68
  69 static struct level level_v[MAXLVL];
  70 static struct score score_v[MAXLVL];
  71
  72 static char scores_file[MAXSTR];
  73
  74 /*---------------------------------------------------------------------------*/
  75
  76 static void level_store_hs(const char *filename)
  77 {
  78     FILE *fout;
  79
  80     if ((fout = fopen(config_user(filename), "w")))
  81     {
  82         int i;
  83         int j;
  84
  85         for (i = 0; i < limit; i++)
  86             for (j = 0; j < 3; j++)
  87             {
  88                 if (strlen(score_v[i].time_n[j]) == 0)
  89                     strcpy(score_v[i].time_n[j], DEFAULT_PLAYER);
  90                 if (strlen(score_v[i].coin_n[j]) == 0)
  91                     strcpy(score_v[i].coin_n[j], DEFAULT_PLAYER);
  92
  93                 fprintf(fout, "%d %d %s\n",
  94                         score_v[i].time_t[j],
  95                         score_v[i].time_c[j],
  96                         score_v[i].time_n[j]);
  97                 fprintf(fout, "%d %d %s\n",
  98                         score_v[i].coin_t[j],
  99                         score_v[i].coin_c[j],
 100                         score_v[i].coin_n[j]);
 101             }
 102
 103         fclose(fout);
 104     }
 105 }
 106
 107 static void level_load_hs(const char *filename)
 108 {
 109     FILE *fin;
 110
 111     limit = 1;
 112
 113     if ((fin = fopen(config_user(filename), "r")))
 114     {
 115         int i;
 116
 117         for (i = 0; i < count; i++)
 118         {
 119             if (fscanf(fin, "%d %d %s",
 120                        &score_v[i].time_t[0],
 121                        &score_v[i].time_c[0],
 122                        score_v[i].time_n[0]) == 3 &&
 123                 fscanf(fin, "%d %d %s",
 124                        &score_v[i].coin_t[0],
 125                        &score_v[i].coin_c[0],
 126                        score_v[i].coin_n[0]) == 3 &&
 127                 fscanf(fin, "%d %d %s",
 128                        &score_v[i].time_t[1],
 129                        &score_v[i].time_c[1],
 130                        score_v[i].time_n[1]) == 3 &&
 131                 fscanf(fin, "%d %d %s",
 132                        &score_v[i].coin_t[1],
 133                        &score_v[i].coin_c[1],
 134                        score_v[i].coin_n[1]) == 3 &&
 135                 fscanf(fin, "%d %d %s",
 136                        &score_v[i].time_t[2],
 137                        &score_v[i].time_c[2],
 138                        score_v[i].time_n[2]) == 3 &&
 139                 fscanf(fin, "%d %d %s",
 140                        &score_v[i].coin_t[2],
 141                        &score_v[i].coin_c[2],
 142                        score_v[i].coin_n[2]) == 3)
 143                 limit = i + 1;
 144         }
 145
 146         fclose(fin);
 147     }
 148 }
 149
 150 /*---------------------------------------------------------------------------*/
 151
 152 static void level_init_rc(const char *filename)
 153 {
 154     FILE *fin;
 155     char buf[MAXSTR];
 156
 157     count = 0;
 158     level = 0;
 159     coins = 0;
 160     score = 0;
 161     balls = 0;
 162
 163     /* Load the levels list. */
 164
 165     if ((fin = fopen(config_data(filename), "r")))
 166     {
 167         while (count < MAXLVL && fgets(buf, MAXSTR, fin))
 168         {
 169             sscanf(buf, "%s %s %s %s %d %d %s",
 170                     level_v[count].file,
 171                     level_v[count].back,
 172                     level_v[count].shot,
 173                     level_v[count].grad,
 174                    &level_v[count].time,
 175                    &level_v[count].goal,
 176                     level_v[count].song);
 177             count++;
 178         }
 179         fclose(fin);
 180     }
 181 }
 182
 183 static void level_init_hs(const char *filename)
 184 {
 185     char buf[MAXSTR];
 186     FILE *fin;
 187     int i = 0;
 188
 189     /* Set some sane values in case the scores file is missing. */
 190
 191     for (i = 0; i < MAXLVL; i++)
 192     {
 193         strcpy(score_v[i].time_n[0], "Hard");
 194         strcpy(score_v[i].time_n[1], "Medium");
 195         strcpy(score_v[i].time_n[2], "Easy");
 196
 197         score_v[i].time_t[0] = i ? 59999 : 359999;
 198         score_v[i].time_t[1] = i ? 59999 : 359999;
 199         score_v[i].time_t[2] = i ? 59999 : 359999;
 200
 201         score_v[i].time_c[0] = 0;
 202         score_v[i].time_c[1] = 0;
 203         score_v[i].time_c[2] = 0;
 204
 205         strcpy(score_v[i].coin_n[0], "Hard");
 206         strcpy(score_v[i].coin_n[1], "Medium");
 207         strcpy(score_v[i].coin_n[2], "Easy");
 208
 209         score_v[i].coin_t[0] = i ? 59999 : 359999;
 210         score_v[i].coin_t[1] = i ? 59999 : 359999;
 211         score_v[i].coin_t[2] = i ? 59999 : 359999;
 212
 213         score_v[i].coin_c[0] = 0;
 214         score_v[i].coin_c[1] = 0;
 215         score_v[i].coin_c[2] = 0;
 216     }
 217
 218     /* Load the default high scores file. */
 219
 220     if ((fin = fopen(config_data(filename), "r")))
 221     {
 222         for (i = 0; i < MAXLVL && fgets(buf, MAXSTR, fin); i++)
 223             sscanf(buf, "%d %d %d %d %d %d",
 224                    &score_v[i].time_t[0], &score_v[i].coin_c[0],
 225                    &score_v[i].time_t[1], &score_v[i].coin_c[1],
 226                    &score_v[i].time_t[2], &score_v[i].coin_c[2]);
 227
 228         fclose(fin);
 229     }
 230 }
 231
 232 /*---------------------------------------------------------------------------*/
 233
 234 const char *level_shot(int i)
 235 {
 236     return level_v[i].shot;
 237 }
 238
 239 const char *level_time_n(int i, int j)
 240 {
 241     return score_v[i].time_n[j];
 242 }
 243
 244 const char *level_coin_n(int i, int j)
 245 {
 246     return score_v[i].coin_n[j];
 247 }
 248
 249 /*---------------------------------------------------------------------------*/
 250 /* Return the coin count for the Most Coins or Best Time score.              */
 251
 252 int level_coin_c(int i, int j)
 253 {
 254     if (j < 0)
 255         return score;
 256     else
 257         return score_v[i].coin_c[j];
 258 }
 259
 260 int level_time_c(int i, int j)
 261 {
 262     return score_v[i].time_c[j];
 263 }
 264
 265 /*---------------------------------------------------------------------------*/
 266 /* Return the time for the Most Coins or Best Time score.                    */
 267
 268 int level_coin_t(int i, int j)
 269 {
 270     return score_v[i].coin_t[j];
 271 }
 272
 273 int level_time_t(int i, int j)
 274 {
 275     if (j < 0)
 276         return level_v[i].time - curr_clock();
 277     else
 278         return score_v[i].time_t[j];
 279 }
 280
 281 /*---------------------------------------------------------------------------*/
 282
 283 void level_init(const char *init_levels,
 284                 const char *init_scores,
 285                 const char *user_scores)
 286 {
 287     memset(level_v, 0, sizeof (struct level) * MAXLVL);
 288     memset(score_v, 0, sizeof (struct score) * MAXLVL);
 289
 290     level_init_rc(init_levels);
 291     level_init_hs(init_scores);
 292     level_load_hs(user_scores);
 293
 294     strncpy(scores_file, user_scores, MAXSTR);
 295
 296     score = 0;
 297     coins = 0;
 298     balls = 2;
 299     level = 0;
 300
 301     level_total = 0;
 302     coins_total = 0;
 303     times_total = 0;
 304
 305 #ifdef CHEATER
 306     limit = count;
 307     level_store_hs(user_scores);
 308 #endif
 309 }
 310
 311 void level_free(void)
 312 {
 313     int i;
 314
 315     level_store_hs(scores_file);
 316
 317     for (i = 0; i < count; i++)
 318         if (glIsTexture(level_v[i].text))
 319             glDeleteTextures(1, &level_v[i].text);
 320
 321     count = 0;
 322 }
 323
 324 int level_exists(int i)
 325 {
 326     return (0 < i && i < count);
 327 }
 328
 329 int level_opened(int i)
 330 {
 331     return level_exists(i) && (0 < i && i < count && i <= limit);
 332 }
 333
 334 int level_locked(int i)
 335 {
 336     return level_opened(i) && (i == limit) && (level_v[i].goal > 0);
 337 }
 338
 339 /*---------------------------------------------------------------------------*/
 340
 341 int curr_times_total(void) { return times_total; }
 342 int curr_coins_total(void) { return coins_total; }
 343
 344 int curr_count(void) { return count; }
 345 int curr_score(void) { return score; }
 346 int curr_coins(void) { return coins; }
 347 int curr_balls(void) { return balls; }
 348 int curr_level(void) { return level; }
 349 int curr_goal (void) { return goal;  }
 350
 351 /*---------------------------------------------------------------------------*/
 352
 353 static int score_time_comp(const struct score *S, int i, int j)
 354 {
 355     if (S->time_t[i] <  S->time_t[j])
 356         return 1;
 357
 358     if (S->time_t[i] == S->time_t[j] &&
 359         S->time_c[i] >  S->time_c[j])
 360         return 1;
 361
 362     return 0;
 363 }
 364
 365 static int score_coin_comp(const struct score *S, int i, int j)
 366 {
 367     if (S->coin_c[i] >  S->coin_c[j])
 368         return 1;
 369
 370     if (S->coin_c[i] == S->coin_c[j] &&
 371         S->coin_t[i] <  S->coin_t[j])
 372         return 1;
 373
 374     return 0;
 375 }
 376
 377 /*---------------------------------------------------------------------------*/
 378
 379 static void score_time_swap(struct score *S, int i, int j)
 380 {
 381     char n[MAXNAM];
 382     int  t;
 383     int  c;
 384
 385     strncpy(n,            S->time_n[i], MAXNAM);
 386     strncpy(S->time_n[i], S->time_n[j], MAXNAM);
 387     strncpy(S->time_n[j], n,            MAXNAM);
 388
 389     t            = S->time_t[i];
 390     S->time_t[i] = S->time_t[j];
 391     S->time_t[j] = t;
 392
 393     c            = S->time_c[i];
 394     S->time_c[i] = S->time_c[j];
 395     S->time_c[j] = c;
 396 }
 397
 398 static void score_coin_swap(struct score *S, int i, int j)
 399 {
 400     char n[MAXNAM];
 401     int  t;
 402     int  c;
 403
 404     strncpy(n,            S->coin_n[i], MAXNAM);
 405     strncpy(S->coin_n[i], S->coin_n[j], MAXNAM);
 406     strncpy(S->coin_n[j], n,            MAXNAM);
 407
 408     t            = S->coin_t[i];
 409     S->coin_t[i] = S->coin_t[j];
 410     S->coin_t[j] = t;
 411
 412     c            = S->coin_c[i];
 413     S->coin_c[i] = S->coin_c[j];
 414     S->coin_c[j] = c;
 415 }
 416
 417 /*---------------------------------------------------------------------------*/
 418
 419 int level_replay(const char *filename)
 420 {
 421     status = GAME_NONE;
 422
 423     return demo_replay_init(filename, &score, &coins, &balls, &goal);
 424 }
 425
 426 int level_play(const char *filename, int i)
 427 {
 428     status = GAME_NONE;
 429
 430     if (i >= 0)
 431     {
 432         level = i;
 433         goal = (level == limit) ? level_v[level].goal : 0;
 434     }
 435     return demo_play_init(USER_REPLAY_FILE,
 436                           level_v[level].file,
 437                           level_v[level].back,
 438                           level_v[level].grad,
 439                           level_v[level].song,
 440                           level_v[level].shot,
 441                           level_v[level].time,
 442                           goal, score, coins, balls);
 443 }
 444
 445 /*---------------------------------------------------------------------------*/
 446
 447 void level_stat(int s)
 448 {
 449     if ((status = s) == GAME_GOAL)
 450     {
 451         coins_total += coins;
 452         level_total += 1;
 453     }
 454
 455     demo_play_stat(curr_coins(), level_v[level].time - curr_clock());
 456 }
 457
 458 int level_dead(void)
 459 {
 460     return (balls == 0);
 461 }
 462
 463 int level_last(void)
 464 {
 465     return (level + 1 == count);
 466 }
 467
 468 int level_exit(const char *filename, int next)
 469 {
 470     times_total += level_v[level].time - curr_clock();
 471
 472     demo_play_stop(filename);
 473
 474     switch (status)
 475     {
 476     case GAME_GOAL:
 477         if (next) level++;
 478         if (limit < level)
 479             limit = level;
 480
 481         level_store_hs(scores_file);
 482         break;
 483
 484     case GAME_TIME:
 485     case GAME_FALL:
 486         balls--;
 487         break;
 488     }
 489
 490     /* Load the next level. */
 491
 492     if (status && level < count && balls >= 0)
 493     {
 494         goal   = (level == limit) ? level_v[level].goal : 0;
 495         coins  = 0;
 496         status = GAME_NONE;
 497
 498         return demo_play_init(USER_REPLAY_FILE,
 499                               level_v[level].file,
 500                               level_v[level].back,
 501                               level_v[level].grad,
 502                               level_v[level].song,
 503                               level_v[level].shot,
 504                               level_v[level].time,
 505                               goal, score, coins, balls);
 506     }
 507
 508     return 0;
 509 }
 510
 511 int level_sort(int *time_i, int *coin_i)
 512 {
 513     int i, clock = level_v[level].time - curr_clock();
 514     char player[MAXNAM];
 515
 516     config_get_s(CONFIG_PLAYER, player, MAXNAM);
 517
 518     /* Insert the time record into the high score list. */
 519
 520     strncpy(score_v[level].time_n[3], player, MAXNAM);
 521     score_v[level].time_c[3] = coins;
 522     score_v[level].time_t[3] = clock;
 523
 524     for (i = 2; i >= 0 && score_time_comp(score_v + level, i + 1, i); i--)
 525     {
 526         score_time_swap(score_v + level, i + 1, i);
 527         *time_i = i;
 528     }
 529
 530     /* Insert the coin record into the high score list. */
 531
 532     strncpy(score_v[level].coin_n[3], player, MAXNAM);
 533     score_v[level].coin_c[3] = coins;
 534     score_v[level].coin_t[3] = clock;
 535
 536     for (i = 2; i >= 0 && score_coin_comp(score_v + level, i + 1, i); i--)
 537     {
 538         score_coin_swap(score_v + level, i + 1, i);
 539         *coin_i = i;
 540     }
 541
 542     return (*time_i < 3 || *coin_i < 3);
 543 }
 544
 545 int level_done(int *time_i, int *coin_i)
 546 {
 547     int i;
 548     char player[MAXNAM];
 549
 550     config_get_s(CONFIG_PLAYER, player, MAXNAM);
 551
 552     /* Note a global high score. */
 553
 554     strncpy(score_v[0].time_n[3], player, MAXNAM);
 555     score_v[0].time_c[3] = coins_total;
 556     score_v[0].time_t[3] = times_total;
 557
 558     strncpy(score_v[0].coin_n[3], player, MAXNAM);
 559     score_v[0].coin_c[3] = coins_total;
 560     score_v[0].coin_t[3] = times_total;
 561
 562     if (level == count && level_total == count - 1)
 563     {
 564         /* Insert the time record into the global high score list. */
 565
 566         for (i = 2; i >= 0 && score_time_comp(score_v, i + 1, i); i--)
 567         {
 568             score_time_swap(score_v, i + 1, i);
 569             *time_i = i;
 570         }
 571
 572         /* Insert the coin record into the global high score list. */
 573
 574         for (i = 2; i >= 0 && score_coin_comp(score_v, i + 1, i); i--)
 575         {
 576             score_coin_swap(score_v, i + 1, i);
 577             *coin_i = i;
 578         }
 579     }
 580
 581     return (*time_i < 3 || *coin_i < 3);
 582 }
 583
 584 int level_score(int n)
 585 {
 586     int sound = AUD_COIN;
 587     int value = 0;
 588
 589     coins += n;
 590
 591     /* Pulse the coin counter based on the value of the grabbed coin. */
 592
 593     if      (n >= 10) hud_coin_pulse(2.00f);
 594     else if (n >=  5) hud_coin_pulse(1.50f);
 595     else              hud_coin_pulse(1.25f);
 596
 597     /* Check for goal open. */
 598
 599     if (goal > 0)
 600     {
 601         if      (n >= 10) hud_goal_pulse(2.00f);
 602         else if (n >=  5) hud_goal_pulse(1.50f);
 603         else              hud_goal_pulse(1.25f);
 604
 605         if (goal - n <= 0)
 606         {
 607             sound = AUD_SWITCH;
 608             value = 1;
 609             hud_goal_pulse(2.0f);
 610         }
 611
 612         goal = (goal > n) ? (goal - n) : 0;
 613     }
 614
 615     audio_play(sound, 1.f);
 616     return value;
 617 }
 618
 619 int level_count(void)
 620 {
 621     if (coins > 0)
 622     {
 623         score++;
 624         coins--;
 625
 626         if (score % 100 == 0)
 627         {
 628             balls += 1;
 629             audio_play(AUD_BALL, 1.0f);
 630         }
 631         return 1;
 632     }
 633     return 0;
 634 }
 635
 636 /*---------------------------------------------------------------------------*/
 637
 638 void level_name(int i, const char *name, int time_i, int coin_i)
 639 {
 640     strncpy(score_v[i].time_n[time_i], name, MAXNAM);
 641     strncpy(score_v[i].coin_n[coin_i], name, MAXNAM);
 642 }
 643
 644 void level_snap(int i)
 645 {
 646     char filename[MAXSTR];
 647
 648     /* Convert the level name to a BMP filename. */
 649
 650     memset(filename, 0, MAXSTR);
 651     strncpy(filename, level_v[i].file, strcspn(level_v[i].file, "."));
 652     strcat(filename, ".bmp");
 653
 654     /* Initialize the game for a snapshot. */
 655
 656     if (game_init(level_v[i].file, level_v[i].back, level_v[i].grad, 0, 1))
 657     {
 658         /* Render the level and grab the screen. */
 659
 660         config_clear();
 661         game_set_fly(1.f);
 662         game_kill_fade();
 663         game_draw(1, 0);
 664         SDL_GL_SwapBuffers();
 665
 666         image_snap(filename);
 667     }
 668 }