2 * Copyright (C) 2003 Robert Kooima
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.
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.
31 /*---------------------------------------------------------------------------*/
33 #define MAGIC 0x4E425251 /* Replay file magic number (should not change) */
34 #define OLD_MAGIC 0x4E425250 /* Replay file magic number for neverball 1.4.0 */
35 #define DEMO_VERSION 1 /* Replay file format version (can change) */
37 #define DEMO_FPS_CAP 200 /* FPS replay limit, keeps size down on monster systems */
41 static struct demo demos[MAXDEMO]; /* Array of scanned demos */
43 static int count; /* number of scanned demos */
45 /*---------------------------------------------------------------------------*/
47 void demo_dump_info(const struct demo *d)
48 /* This function dump the info of a demo structure
49 * It's only a function for debugging, no need of I18N */
72 d->timer, d->coins, d->mode, d->state, ctime(&d->date),
74 d->shot, d->file, d->back, d->grad, d->song,
75 d->time, d->goal, d->score, d->balls, d->times);
78 /* Open a demo file, fill the demo information structure. If success, return
79 * the file pointer positioned after the header. If fail, return NULL. */
81 FILE *demo_header_read(const char *filename, struct demo *d)
88 if ((fp = fopen(filename, FMODE_RB)))
94 get_index(fp, &magic);
95 get_index(fp, &version);
99 if (magic == MAGIC && version == DEMO_VERSION && t)
102 strncpy(d->filename, filename, PATHMAX);
104 /* Remove the directory delimiter */
106 basename = strrchr(filename, '/');
110 basename = strrchr(filename, '\\');
114 if ((tmp = strrchr(basename, '\\')))
118 strncpy(buf, basename ? basename + 1 : filename, MAXSTR);
120 /* Remove the extension */
121 t = strlen(buf) - strlen(REPLAY_EXT);
122 if ((t > 1) && (strcmp(buf + t, REPLAY_EXT) == 0))
124 strncpy(d->name, buf, PATHMAX);
125 d->name[PATHMAX - 1] = '\0';
127 get_index (fp, &d->coins);
128 get_index (fp, &d->state);
129 get_index (fp, &d->mode);
130 get_index (fp, (int *)&d->date);
132 fread(d->player, 1, MAXNAM, fp);
134 fread(d->shot, 1, PATHMAX, fp);
135 fread(d->file, 1, PATHMAX, fp);
136 fread(d->back, 1, PATHMAX, fp);
137 fread(d->grad, 1, PATHMAX, fp);
138 fread(d->song, 1, PATHMAX, fp);
140 get_index (fp, &d->time);
141 get_index (fp, &d->goal);
142 get_index (fp, &d->score);
143 get_index (fp, &d->balls);
144 get_index (fp, &d->times);
146 fread(d->nb_version, 1, 20, fp);
155 /* Create a new demo file, write the demo information structure. If success,
156 * return the file pointer positioned after the header. If fail, return NULL.
159 static FILE *demo_header_write(struct demo *d)
162 int version = DEMO_VERSION;
167 if (d->filename && (fp = fopen(d->filename, FMODE_WB)))
169 put_index(fp, &magic);
170 put_index(fp, &version);
171 put_index(fp, &zero);
172 put_index(fp, &zero);
173 put_index(fp, &zero);
174 put_index(fp, &d->mode);
175 put_index(fp, (int *) &d->date);
177 fwrite(d->player, 1, MAXNAM, fp);
179 fwrite(d->shot, 1, PATHMAX, fp);
180 fwrite(d->file, 1, PATHMAX, fp);
181 fwrite(d->back, 1, PATHMAX, fp);
182 fwrite(d->grad, 1, PATHMAX, fp);
183 fwrite(d->song, 1, PATHMAX, fp);
185 put_index(fp, &d->time);
186 put_index(fp, &d->goal);
187 put_index(fp, &d->score);
188 put_index(fp, &d->balls);
189 put_index(fp, &d->times);
191 fwrite(d->nb_version, 1, 20, fp);
198 /* Update the demo header using the final level state. */
200 void demo_header_stop(FILE *fp, int coins, int timer, int state)
202 long pos = ftell(fp);
204 fseek(fp, 8, SEEK_SET);
205 put_index(fp, &timer);
206 put_index(fp, &coins);
207 put_index(fp, &state);
208 fseek(fp, pos, SEEK_SET);
211 /*---------------------------------------------------------------------------*/
213 /* Scan another file (used by demo_scan). */
215 static void demo_scan_file(const char *filename)
218 if ((fp = demo_header_read(config_user(filename), &demos[count])))
234 /* Scan the user directory for files. */
236 if ((h = FindFirstFile(config_user("*"), &d)) != INVALID_HANDLE_VALUE)
239 demo_scan_file(d.cFileName);
240 while (count < MAXDEMO && FindNextFile(h, &d));
257 /* Scan the user directory for files. */
259 if ((dp = opendir(config_user(""))))
261 while (count < MAXDEMO && (ent = readdir(dp)))
262 demo_scan_file(ent->d_name);
270 const char *demo_pick(void)
274 return (n > 0) ? demos[(rand() >> 4) % n].filename : NULL;
277 const struct demo *get_demo(int i)
279 return (0 <= i && i < count) ? &demos[i] : NULL;
282 const char *date_to_str(time_t i)
284 static char str[MAXSTR];
285 struct tm *tm = localtime(&i);
286 strftime (str, MAXSTR, "%c", tm);
290 /*---------------------------------------------------------------------------*/
292 int demo_exists(char *name)
297 strcpy(buf, config_user(name));
298 strcat(buf, REPLAY_EXT);
299 if ((fp = fopen(buf, "r")))
307 void demo_unique(char *name)
311 /* Generate a unique name for a new replay save. */
313 for (i = 1; i < 100; i++)
315 sprintf(name, _("replay%02d"), i);
317 if (!demo_exists(name))
322 /*---------------------------------------------------------------------------*/
324 int demo_play_init(const char *name,
325 const struct level *level,
326 const struct level_game *lg)
330 memset(&demo, 0, sizeof(demo));
332 strncpy(demo.filename, config_user(name), PATHMAX);
333 strcat(demo.filename, REPLAY_EXT);
335 demo.mode = lg->mode;
336 demo.date = time(NULL);
338 config_get_s(CONFIG_PLAYER, demo.player, MAXNAM);
340 strncpy(demo.shot, level->shot, PATHMAX);
341 strncpy(demo.file, level->file, PATHMAX);
342 strncpy(demo.back, level->back, PATHMAX);
343 strncpy(demo.grad, level->grad, PATHMAX);
344 strncpy(demo.song, level->song, PATHMAX);
346 demo.time = lg->time;
347 demo.goal = lg->goal;
348 demo.score = lg->score;
349 demo.balls = lg->balls;
350 demo.times = lg->times;
352 strncpy(demo.nb_version, VERSION, 20);
354 demo_fp = demo_header_write(&demo);
360 audio_music_fade_to(2.0f, level->song);
361 return game_init(level, lg->time, lg->goal);
365 void demo_play_step(float dt)
367 static float fps_track = 0.0f;
368 static float fps_cap = 1.0f / (float) DEMO_FPS_CAP;
373 if (fps_track > fps_cap)
375 put_float(demo_fp, &fps_track);
376 put_game_state(demo_fp);
382 void demo_play_stop(const struct level_game *lg)
383 /* Update the demo header using the final level state. */
387 demo_header_stop(demo_fp, lg->coins, lg->timer, lg->state);
393 int demo_play_saved(void)
395 return demo_exists(USER_REPLAY_FILE);
398 void demo_play_save(const char *name)
403 if (name && demo_exists(USER_REPLAY_FILE)
404 && strcmp(name, USER_REPLAY_FILE) != 0)
406 strncpy(src, config_user(USER_REPLAY_FILE), PATHMAX);
407 strcat(src, REPLAY_EXT);
408 strncpy(dst, config_user(name), PATHMAX);
409 strcat(dst, REPLAY_EXT);
415 /*---------------------------------------------------------------------------*/
417 static int demo_load_level(const struct demo *demo, struct level *level)
418 /* Load the level of the demo and fill the level structure */
420 if (level_load(demo->file, level))
422 level->time = demo->time;
423 level->goal = demo->goal;
430 static struct demo demo_replay; /* The current demo */
431 static struct level demo_level_replay; /* The current level demo-ed*/
433 const struct demo *curr_demo_replay(void)
438 /* Internally load a replay and fill the lg structure (if not NULL) */
440 int demo_replay_init(const char *name, struct level_game *lg)
442 if ((demo_fp = demo_header_read(name, &demo_replay)))
444 if (!demo_load_level(&demo_replay, &demo_level_replay))
449 lg->mode = demo_replay.mode;
450 lg->score = demo_replay.score;
451 lg->times = demo_replay.times;
452 lg->time = demo_replay.time;
453 lg->goal = demo_replay.goal;
455 /* A normal replay demo */
456 audio_music_fade_to(0.5f, demo_replay.song);
457 return game_init(&demo_level_replay, demo_replay.time,
460 else /* A title screen demo */
461 return game_init(&demo_level_replay, demo_replay.time, 0);
467 int demo_replay_step(float *dt)
469 const float g[3] = { 0.0f, -9.8f, 0.0f };
474 get_float(demo_fp, dt);
476 if (feof(demo_fp) == 0)
478 /* Play out current game state for particles, clock, etc. */
480 game_step(g, *dt, &sv);
482 /* Load real current game state from file. */
484 if (get_game_state(demo_fp))
491 void demo_replay_stop(int d)
498 if (d) unlink(demo_replay.filename);
502 void demo_replay_dump_info(void)
504 demo_dump_info(&demo_replay);
507 /*---------------------------------------------------------------------------*/