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 REPLAY_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 FILE *demo_header_read(const char *filename, struct demo *d)
79 /* Open a demo file, fill the demo information structure
80 * If success, return the file pointer positioned after the header
81 * If fail, return null
88 if ((fp = fopen(filename, FMODE_RB)))
94 get_index(fp, &magic);
95 get_index(fp, &version);
97 /* if time is 0, it means the replay was not finished */
100 if (magic == MAGIC && version == REPLAY_VERSION && t)
103 strncpy(d->filename, filename, PATHMAX);
105 /* Remove the directory delimiter */
107 basename = strrchr(filename, '\\');
109 basename = strrchr(filename, '/');
112 if (basename != NULL)
113 strncpy(buf, basename + 1, MAXSTR);
115 strncpy(buf, filename, MAXSTR);
117 /* Remove the extension */
118 t = strlen(buf) - strlen(REPLAY_EXT);
119 if ((t > 1) && (strcmp(buf + t, REPLAY_EXT) == 0))
121 strncpy(d->name, buf, PATHMAX);
122 d->name[PATHMAX - 1] = '\0';
124 get_index (fp, &d->coins);
125 get_index (fp, &d->state);
126 get_index (fp, &d->mode);
127 get_index (fp, (int *)&d->date);
128 get_string(fp, d->player, MAXNAM);
129 get_string(fp, d->shot, PATHMAX);
130 get_string(fp, d->file, PATHMAX);
131 get_string(fp, d->back, PATHMAX);
132 get_string(fp, d->grad, PATHMAX);
133 get_string(fp, d->song, PATHMAX);
134 get_index (fp, &d->time);
135 get_index (fp, &d->goal);
136 get_index (fp, &d->score);
137 get_index (fp, &d->balls);
138 get_index (fp, &d->times);
139 get_string(fp, d->nb_version, 20);
148 static FILE *demo_header_write(struct demo *d)
149 /* Create a new demo file, write the demo information structure
150 * If success, return the file pointer positioned after the header
151 * If fail, return null
155 int version = REPLAY_VERSION;
159 if (d->filename && (fp = fopen(d->filename, FMODE_WB)))
161 put_index (fp, &magic);
162 put_index (fp, &version);
163 put_index (fp, &zero);
164 put_index (fp, &zero);
165 put_index (fp, &zero);
166 put_index (fp, &d->mode);
167 put_index (fp, (int *)&d->date);
168 put_string(fp, d->player);
169 put_string(fp, d->shot);
170 put_string(fp, d->file);
171 put_string(fp, d->back);
172 put_string(fp, d->grad);
173 put_string(fp, d->song);
174 put_index (fp, &d->time);
175 put_index (fp, &d->goal);
176 put_index (fp, &d->score);
177 put_index (fp, &d->balls);
178 put_index (fp, &d->times);
179 put_string(fp, VERSION);
186 void demo_header_stop(FILE *fp, int coins, int timer, int state)
187 /* Update the demo header using the final level state. */
189 long pos = ftell(fp);
190 fseek(fp, 8, SEEK_SET);
191 put_index(fp, &timer);
192 put_index(fp, &coins);
193 put_index(fp, &state);
194 fseek(fp, pos, SEEK_SET);
197 /*---------------------------------------------------------------------------*/
199 static void demo_scan_file(const char *filename)
200 /* Scan another file (used by demo_scan */
203 if ((fp = demo_header_read(config_user(filename), &demos[count])))
219 /* Scan the user directory for files. */
221 if ((h = FindFirstFile(config_user("*"), &d)) != INVALID_HANDLE_VALUE)
224 demo_scan_file(d.cFileName);
225 while (count < MAXDEMO && FindNextFile(h, &d));
242 /* Scan the user directory for files. */
244 if ((dp = opendir(config_user(""))))
246 while (count < MAXDEMO && (ent = readdir(dp)))
247 demo_scan_file(ent->d_name);
255 const char *demo_pick(void)
259 return (n > 0) ? demos[(rand() >> 4) % n].filename : NULL;
262 const struct demo *get_demo(int i)
264 return (0 <= i && i < count) ? &demos[i] : NULL;
267 const char *date_to_str(time_t i)
269 static char str[MAXSTR];
270 struct tm *tm = localtime(&i);
271 strftime (str, MAXSTR, "%c", tm);
275 /*---------------------------------------------------------------------------*/
277 int demo_exists(char *name)
282 strcpy(buf, config_user(name));
283 strcat(buf, REPLAY_EXT);
284 if ((fp = fopen(buf, "r")))
292 void demo_unique(char *name)
296 /* Generate a unique name for a new replay save. */
298 for (i = 1; i < 100; i++)
300 sprintf(name, _("replay%02d"), i);
302 if (!demo_exists(name))
307 /*---------------------------------------------------------------------------*/
309 int demo_play_init(const char *name,
310 const struct level *level,
311 const struct level_game *lg)
316 strncpy(demo.name, name, MAXNAM);
317 strncpy(demo.filename, config_user(name), PATHMAX);
318 strcat(demo.filename, REPLAY_EXT);
319 demo.time = demo.coins = demo.state = 0;
320 demo.mode = lg->mode;
321 demo.date = time(NULL);
322 config_get_s(CONFIG_PLAYER, demo.player, MAXNAM);
323 strncpy(demo.shot, level->shot, PATHMAX);
324 strncpy(demo.file, level->file, PATHMAX);
325 strncpy(demo.back, level->back, PATHMAX);
326 strncpy(demo.grad, level->grad, PATHMAX);
327 strncpy(demo.song, level->song, PATHMAX);
328 demo.time = lg->time;
329 demo.goal = lg->goal;
330 demo.score = lg->score;
331 demo.balls = lg->balls;
332 demo.times = lg->times;
334 demo_fp = demo_header_write(&demo);
339 audio_music_fade_to(2.0f, level->song);
340 return game_init(level, lg->time, lg->goal);
344 void demo_play_step(float dt)
346 static float fps_track = 0.0f;
347 static float fps_cap = 1.0f / (float) DEMO_FPS_CAP;
352 if (fps_track > fps_cap)
354 put_float(demo_fp, &fps_track);
355 put_game_state(demo_fp);
361 void demo_play_stop(const struct level_game *lg)
362 /* Update the demo header using the final level state. */
366 demo_header_stop(demo_fp, lg->coins, lg->timer, lg->state);
372 int demo_play_saved(void)
374 return demo_exists(USER_REPLAY_FILE);
377 void demo_play_save(const char *name)
382 if (name && demo_exists(USER_REPLAY_FILE)
383 && strcmp(name, USER_REPLAY_FILE) != 0)
385 strncpy(src, config_user(USER_REPLAY_FILE), PATHMAX);
386 strcat(src, REPLAY_EXT);
387 strncpy(dst, config_user(name), PATHMAX);
388 strcat(dst, REPLAY_EXT);
394 /*---------------------------------------------------------------------------*/
396 static int demo_load_level(const struct demo *demo, struct level *level)
397 /* Load the level of the demo and fill the level structure */
399 if (level_load(demo->file, level))
401 level->time = demo->time;
402 level->goal = demo->goal;
409 static struct demo demo_replay; /* The current demo */
410 static struct level demo_level_replay; /* The current level demo-ed*/
412 const struct demo *curr_demo_replay(void)
418 int demo_replay_init(const char *name, struct level_game *lg)
419 /* Internally load a replay an fill the lg structure (if not NULL) */
421 if ((demo_fp = demo_header_read(name, &demo_replay)))
423 if (!demo_load_level(&demo_replay, &demo_level_replay))
428 lg->mode = demo_replay.mode;
429 lg->score = demo_replay.score;
430 lg->times = demo_replay.times;
431 lg->time = demo_replay.time;
432 lg->goal = demo_replay.goal;
434 /* A normal replay demo */
435 audio_music_fade_to(0.5f, demo_replay.song);
436 return game_init(&demo_level_replay, demo_replay.time,
439 else /* A title screen demo */
440 return game_init(&demo_level_replay, demo_replay.time, 0);
446 int demo_replay_step(float *dt)
448 const float g[3] = { 0.0f, -9.8f, 0.0f };
453 get_float(demo_fp, dt);
455 if (feof(demo_fp) == 0)
457 /* Play out current game state for particles, clock, etc. */
459 game_step(g, *dt, &sv);
461 /* Load real current game state from file. */
463 if (get_game_state(demo_fp))
470 void demo_replay_stop(int d)
477 if (d) unlink(demo_replay.filename);
481 void demo_replay_dump_info(void)
483 demo_dump_info(&demo_replay);
486 /*---------------------------------------------------------------------------*/