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*/
71 d->timer, d->coins, d->mode, d->state, ctime(&d->date),
73 d->shot, d->file, d->back, d->grad, d->song,
74 d->time, d->goal, d->score, d->balls, d->times);
77 FILE * demo_header_read(const char * filename, struct demo * d)
78 /* Open a demo file, fill the demo information structure
79 * If success, return the file pointer positioned after the header
80 * If fail, return null
85 if ((fp = fopen(filename, FMODE_RB)))
91 get_index(fp, &magic);
92 get_index(fp, &version);
93 get_index(fp, &t); /* if time is 0, it's mean the replay wat not finished */
95 if (magic == MAGIC && version == REPLAY_VERSION && t)
98 basename = strrchr(filename, '\\');
100 basename = strrchr(filename, '/');
102 if (basename != NULL)
103 strncpy(d->name, basename+1, MAXNAM);
105 strncpy(d->name, filename, MAXNAM);
107 strncpy(d->filename, filename, PATHMAX);
110 get_index (fp, &d->coins);
111 get_index (fp, &d->state);
112 get_index (fp, &d->mode);
113 get_index (fp, (int*)&d->date);
114 get_string(fp, d->player, MAXNAM);
115 get_string(fp, d->shot, PATHMAX);
116 get_string(fp, d->file, PATHMAX);
117 get_string(fp, d->back, PATHMAX);
118 get_string(fp, d->grad, PATHMAX);
119 get_string(fp, d->song, PATHMAX);
120 get_index (fp, &d->time);
121 get_index (fp, &d->goal);
122 get_index (fp, &d->score);
123 get_index (fp, &d->balls);
124 get_index (fp, &d->times);
125 get_string(fp, d->nb_version, 20);
134 static FILE * demo_header_write(struct demo * d)
135 /* Create a new demo file, write the demo information structure
136 * If success, return the file pointer positioned after the header
137 * If fail, return null
141 int version = REPLAY_VERSION;
145 if (d->filename && (fp = fopen(d->filename, FMODE_WB)))
147 put_index (fp, &magic);
148 put_index (fp, &version);
149 put_index (fp, &zero);
150 put_index (fp, &zero);
151 put_index (fp, &zero);
152 put_index (fp, &d->mode);
153 put_index (fp, (int*)&d->date);
154 put_string(fp, d->player);
155 put_string(fp, d->shot);
156 put_string(fp, d->file);
157 put_string(fp, d->back);
158 put_string(fp, d->grad);
159 put_string(fp, d->song);
160 put_index (fp, &d->time);
161 put_index (fp, &d->goal);
162 put_index (fp, &d->score);
163 put_index (fp, &d->balls);
164 put_index (fp, &d->times);
165 put_string(fp, VERSION);
172 void demo_header_stop(FILE * fp, int coins, int timer, int state)
173 /* Update the demo header using the final level state. */
175 long pos = ftell(fp);
176 fseek(fp, 8, SEEK_SET);
177 put_index(fp, &timer);
178 put_index(fp, &coins);
179 put_index(fp, &state);
180 fseek(fp, pos, SEEK_SET);
183 /*---------------------------------------------------------------------------*/
185 static void demo_scan_file(const char * filename)
186 /* Scan a other file (used by demo_scan */
189 if ((fp = demo_header_read(config_user(filename), &demos[count])))
205 /* Scan the user directory for files. */
207 if ((h = FindFirstFile(config_user("*"), &d)) != INVALID_HANDLE_VALUE)
210 demo_scan_file(d.cFileName);
211 while (count < MAXDEMO && FindNextFile(h, &d));
228 /* Scan the user directory for files. */
230 if ((dp = opendir(config_user(""))))
232 while (count < MAXDEMO && (ent = readdir(dp)))
233 demo_scan_file(ent->d_name);
241 const char *demo_pick(void)
245 return (n > 0) ? demos[(rand() >> 4) % n].filename : NULL;
248 const struct demo *get_demo(int i)
250 return (0 <= i && i < count) ? &demos[i] : NULL;
253 const char * date_to_str(time_t i)
255 static char str[MAXSTR];
256 struct tm * tm = localtime(&i);
257 strftime (str, MAXSTR, "%c", tm);
261 /*---------------------------------------------------------------------------*/
263 int demo_exists(char *name)
267 if ((fp = fopen(config_user(name), "r")))
275 void demo_unique(char *name)
279 /* Generate a unique name for a new replay save. */
281 for (i = 1; i < 100; i++)
283 sprintf(name, _("replay%02d"), i);
285 if (!demo_exists(name))
290 /*---------------------------------------------------------------------------*/
292 int demo_play_init(const char *name,
293 const struct level * level,
294 const struct level_game * lg)
299 strncpy(demo.name, name, MAXNAM);
300 strncpy(demo.filename, config_user(name), PATHMAX);
301 demo.time = demo.coins = demo.state = 0;
302 demo.mode = lg->mode;
303 demo.date = time(NULL);
304 config_get_s(CONFIG_PLAYER, demo.player, MAXNAM);
305 strncpy(demo.shot, level->shot, PATHMAX);
306 strncpy(demo.file, level->file, PATHMAX);
307 strncpy(demo.back, level->back, PATHMAX);
308 strncpy(demo.grad, level->grad, PATHMAX);
309 strncpy(demo.song, level->song, PATHMAX);
310 demo.time = lg->time;
311 demo.goal = lg->goal;
312 demo.score = lg->score;
313 demo.balls = lg->balls;
314 demo.times = lg->times;
316 demo_fp = demo_header_write(&demo);
321 audio_music_fade_to(2.0f, level->song);
322 return game_init(level, lg->time, lg->goal);
326 void demo_play_step(float dt)
328 static float fps_track = 0.0f;
329 static float fps_cap = 1.0f / (float) DEMO_FPS_CAP;
334 if (fps_track > fps_cap)
336 put_float(demo_fp, &fps_track);
337 put_game_state(demo_fp);
343 void demo_play_stop(const struct level_game *lg)
344 /* Update the demo header using the final level state. */
348 demo_header_stop(demo_fp, lg->coins, lg->timer, lg->state);
354 int demo_play_saved(void)
356 return demo_exists(USER_REPLAY_FILE);
359 void demo_play_save(const char *name)
364 if (name && demo_exists(USER_REPLAY_FILE) && strcmp(name, USER_REPLAY_FILE) != 0)
366 strncpy(src, config_user(USER_REPLAY_FILE), PATHMAX);
367 strncpy(dst, config_user(name), PATHMAX);
373 /*---------------------------------------------------------------------------*/
375 static int demo_load_level(const struct demo * demo, struct level * level)
376 /* Load the level of the demo and fill the level structure */
378 strcpy(level->file, demo->file);
379 strcpy(level->back, demo->back);
380 strcpy(level->grad, demo->grad);
381 strcpy(level->shot, demo->shot);
382 strcpy(level->song, demo->song);
383 level->time = demo->time;
384 level->goal = demo->goal;
388 static struct demo demo_replay; /* The current demo */
389 static struct level demo_level_replay; /* The current level demo-ed*/
391 const struct demo * curr_demo_replay(void)
397 int demo_replay_init(const char *name, struct level_game *lg)
398 /* Internally load a replay an fill the lg structure (if not NULL) */
400 if ((demo_fp = demo_header_read(name, &demo_replay)))
402 demo_load_level(&demo_replay, &demo_level_replay);
406 lg->mode = demo_replay.mode;
407 lg->score = demo_replay.score;
408 lg->times = demo_replay.times;
409 lg->time = demo_replay.time;
410 lg->goal = demo_replay.goal;
412 /* A normal replay demo */
413 audio_music_fade_to(0.5f, demo_replay.song);
414 return game_init(&demo_level_replay, demo_replay.time, demo_replay.goal);
416 else /* A title screen demo */
417 return game_init(&demo_level_replay, demo_replay.time, 0);
423 int demo_replay_step(float *dt)
425 const float g[3] = { 0.0f, -9.8f, 0.0f };
429 get_float(demo_fp, dt);
431 if (feof(demo_fp) == 0)
433 /* Play out current game state for particles, clock, etc. */
435 game_step(g, *dt, 1);
437 /* Load real current game state from file. */
439 if (get_game_state(demo_fp))
446 void demo_replay_stop(int d)
453 if (d) unlink(demo_replay.filename);
457 void demo_replay_dump_info(void)
459 demo_dump_info(&demo_replay);
462 /*---------------------------------------------------------------------------*/