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 */
106 basename = strrchr(filename, '/');
108 if (basename != NULL)
109 strncpy(buf, basename + 1, MAXSTR);
111 strncpy(buf, filename, MAXSTR);
113 /* Remove the extension */
114 t = strlen(buf) - strlen(REPLAY_EXT);
115 if ((t > 1) && (strcmp(buf + t, REPLAY_EXT) == 0))
117 strncpy(d->name, buf, PATHMAX);
118 d->name[PATHMAX - 1] = '\0';
120 get_index (fp, &d->coins);
121 get_index (fp, &d->state);
122 get_index (fp, &d->mode);
123 get_index (fp, (int *)&d->date);
124 get_string(fp, d->player, MAXNAM);
125 get_string(fp, d->shot, PATHMAX);
126 get_string(fp, d->file, PATHMAX);
127 get_string(fp, d->back, PATHMAX);
128 get_string(fp, d->grad, PATHMAX);
129 get_string(fp, d->song, PATHMAX);
130 get_index (fp, &d->time);
131 get_index (fp, &d->goal);
132 get_index (fp, &d->score);
133 get_index (fp, &d->balls);
134 get_index (fp, &d->times);
135 get_string(fp, d->nb_version, 20);
144 static FILE *demo_header_write(struct demo *d)
145 /* Create a new demo file, write the demo information structure
146 * If success, return the file pointer positioned after the header
147 * If fail, return null
151 int version = REPLAY_VERSION;
155 if (d->filename && (fp = fopen(d->filename, FMODE_WB)))
157 put_index (fp, &magic);
158 put_index (fp, &version);
159 put_index (fp, &zero);
160 put_index (fp, &zero);
161 put_index (fp, &zero);
162 put_index (fp, &d->mode);
163 put_index (fp, (int *)&d->date);
164 put_string(fp, d->player);
165 put_string(fp, d->shot);
166 put_string(fp, d->file);
167 put_string(fp, d->back);
168 put_string(fp, d->grad);
169 put_string(fp, d->song);
170 put_index (fp, &d->time);
171 put_index (fp, &d->goal);
172 put_index (fp, &d->score);
173 put_index (fp, &d->balls);
174 put_index (fp, &d->times);
175 put_string(fp, VERSION);
182 void demo_header_stop(FILE *fp, int coins, int timer, int state)
183 /* Update the demo header using the final level state. */
185 long pos = ftell(fp);
186 fseek(fp, 8, SEEK_SET);
187 put_index(fp, &timer);
188 put_index(fp, &coins);
189 put_index(fp, &state);
190 fseek(fp, pos, SEEK_SET);
193 /*---------------------------------------------------------------------------*/
195 static void demo_scan_file(const char *filename)
196 /* Scan another file (used by demo_scan */
199 if ((fp = demo_header_read(config_user(filename), &demos[count])))
215 /* Scan the user directory for files. */
217 if ((h = FindFirstFile(config_user("*"), &d)) != INVALID_HANDLE_VALUE)
220 demo_scan_file(d.cFileName);
221 while (count < MAXDEMO && FindNextFile(h, &d));
238 /* Scan the user directory for files. */
240 if ((dp = opendir(config_user(""))))
242 while (count < MAXDEMO && (ent = readdir(dp)))
243 demo_scan_file(ent->d_name);
251 const char *demo_pick(void)
255 return (n > 0) ? demos[(rand() >> 4) % n].filename : NULL;
258 const struct demo *get_demo(int i)
260 return (0 <= i && i < count) ? &demos[i] : NULL;
263 const char *date_to_str(time_t i)
265 static char str[MAXSTR];
266 struct tm *tm = localtime(&i);
267 strftime (str, MAXSTR, "%c", tm);
271 /*---------------------------------------------------------------------------*/
273 int demo_exists(char *name)
278 strcpy(buf, config_user(name));
279 strcat(buf, REPLAY_EXT);
280 if ((fp = fopen(buf, "r")))
288 void demo_unique(char *name)
292 /* Generate a unique name for a new replay save. */
294 for (i = 1; i < 100; i++)
296 sprintf(name, _("replay%02d"), i);
298 if (!demo_exists(name))
303 /*---------------------------------------------------------------------------*/
305 int demo_play_init(const char *name,
306 const struct level *level,
307 const struct level_game *lg)
312 strncpy(demo.name, name, MAXNAM);
313 strncpy(demo.filename, config_user(name), PATHMAX);
314 strcat(demo.filename, REPLAY_EXT);
315 demo.time = demo.coins = demo.state = 0;
316 demo.mode = lg->mode;
317 demo.date = time(NULL);
318 config_get_s(CONFIG_PLAYER, demo.player, MAXNAM);
319 strncpy(demo.shot, level->shot, PATHMAX);
320 strncpy(demo.file, level->file, PATHMAX);
321 strncpy(demo.back, level->back, PATHMAX);
322 strncpy(demo.grad, level->grad, PATHMAX);
323 strncpy(demo.song, level->song, PATHMAX);
324 demo.time = lg->time;
325 demo.goal = lg->goal;
326 demo.score = lg->score;
327 demo.balls = lg->balls;
328 demo.times = lg->times;
330 demo_fp = demo_header_write(&demo);
335 audio_music_fade_to(2.0f, level->song);
336 return game_init(level, lg->time, lg->goal);
340 void demo_play_step(float dt)
342 static float fps_track = 0.0f;
343 static float fps_cap = 1.0f / (float) DEMO_FPS_CAP;
348 if (fps_track > fps_cap)
350 put_float(demo_fp, &fps_track);
351 put_game_state(demo_fp);
357 void demo_play_stop(const struct level_game *lg)
358 /* Update the demo header using the final level state. */
362 demo_header_stop(demo_fp, lg->coins, lg->timer, lg->state);
368 int demo_play_saved(void)
370 return demo_exists(USER_REPLAY_FILE);
373 void demo_play_save(const char *name)
378 if (name && demo_exists(USER_REPLAY_FILE)
379 && strcmp(name, USER_REPLAY_FILE) != 0)
381 strncpy(src, config_user(USER_REPLAY_FILE), PATHMAX);
382 strcat(src, REPLAY_EXT);
383 strncpy(dst, config_user(name), PATHMAX);
384 strcat(dst, REPLAY_EXT);
390 /*---------------------------------------------------------------------------*/
392 static int demo_load_level(const struct demo *demo, struct level *level)
393 /* Load the level of the demo and fill the level structure */
395 if (level_load(demo->file, level))
397 level->time = demo->time;
398 level->goal = demo->goal;
405 static struct demo demo_replay; /* The current demo */
406 static struct level demo_level_replay; /* The current level demo-ed*/
408 const struct demo *curr_demo_replay(void)
414 int demo_replay_init(const char *name, struct level_game *lg)
415 /* Internally load a replay an fill the lg structure (if not NULL) */
417 if ((demo_fp = demo_header_read(name, &demo_replay)))
419 if (!demo_load_level(&demo_replay, &demo_level_replay))
424 lg->mode = demo_replay.mode;
425 lg->score = demo_replay.score;
426 lg->times = demo_replay.times;
427 lg->time = demo_replay.time;
428 lg->goal = demo_replay.goal;
430 /* A normal replay demo */
431 audio_music_fade_to(0.5f, demo_replay.song);
432 return game_init(&demo_level_replay, demo_replay.time,
435 else /* A title screen demo */
436 return game_init(&demo_level_replay, demo_replay.time, 0);
442 int demo_replay_step(float *dt)
444 const float g[3] = { 0.0f, -9.8f, 0.0f };
449 get_float(demo_fp, dt);
451 if (feof(demo_fp) == 0)
453 /* Play out current game state for particles, clock, etc. */
455 game_step(g, *dt, &sv);
457 /* Load real current game state from file. */
459 if (get_game_state(demo_fp))
466 void demo_replay_stop(int d)
473 if (d) unlink(demo_replay.filename);
477 void demo_replay_dump_info(void)
479 demo_dump_info(&demo_replay);
482 /*---------------------------------------------------------------------------*/