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 0x52424EAF
34 #define DEMO_VERSION 1
36 #define DEMO_FPS_CAP 200 /* FPS replay limit, keeps size down on monster systems */
40 static struct demo demos[MAXDEMO]; /* Array of scanned demos */
42 static int count; /* number of scanned demos */
44 /*---------------------------------------------------------------------------*/
46 void demo_dump_info(const struct demo *d)
69 d->timer, d->coins, d->mode, d->state, ctime(&d->date),
71 d->shot, d->file, d->back, d->grad, d->song,
72 d->time, d->goal, d->score, d->balls, d->times);
75 /* Open a demo file, fill the demo information structure. If success, return
76 * the file pointer positioned after the header. If fail, return NULL. */
78 FILE *demo_header_read(const char *filename, struct demo *d)
85 if ((fp = fopen(filename, FMODE_RB)))
91 get_index(fp, &magic);
92 get_index(fp, &version);
96 if (magic == MAGIC && version == DEMO_VERSION && t)
99 strncpy(d->filename, filename, PATHMAX);
101 /* Remove the directory delimiter */
103 basename = strrchr(filename, '/');
107 basename = strrchr(filename, '\\');
111 if ((tmp = strrchr(basename, '\\')))
115 strncpy(buf, basename ? basename + 1 : 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);
129 fread(d->player, 1, MAXNAM, fp);
131 fread(d->shot, 1, PATHMAX, fp);
132 fread(d->file, 1, PATHMAX, fp);
133 fread(d->back, 1, PATHMAX, fp);
134 fread(d->grad, 1, PATHMAX, fp);
135 fread(d->song, 1, PATHMAX, fp);
137 get_index (fp, &d->time);
138 get_index (fp, &d->goal);
139 get_index (fp, &d->score);
140 get_index (fp, &d->balls);
141 get_index (fp, &d->times);
143 fread(d->nb_version, 1, 20, fp);
152 /* Create a new demo file, write the demo information structure. If success,
153 * return the file pointer positioned after the header. If fail, return NULL.
156 static FILE *demo_header_write(struct demo *d)
159 int version = DEMO_VERSION;
164 if (d->filename && (fp = fopen(d->filename, FMODE_WB)))
166 put_index(fp, &magic);
167 put_index(fp, &version);
168 put_index(fp, &zero);
169 put_index(fp, &zero);
170 put_index(fp, &zero);
171 put_index(fp, &d->mode);
172 put_index(fp, (int *) &d->date);
174 fwrite(d->player, 1, MAXNAM, fp);
176 fwrite(d->shot, 1, PATHMAX, fp);
177 fwrite(d->file, 1, PATHMAX, fp);
178 fwrite(d->back, 1, PATHMAX, fp);
179 fwrite(d->grad, 1, PATHMAX, fp);
180 fwrite(d->song, 1, PATHMAX, fp);
182 put_index(fp, &d->time);
183 put_index(fp, &d->goal);
184 put_index(fp, &d->score);
185 put_index(fp, &d->balls);
186 put_index(fp, &d->times);
188 fwrite(d->nb_version, 1, 20, fp);
195 /* Update the demo header using the final level state. */
197 void demo_header_stop(FILE *fp, int coins, int timer, int state)
199 long pos = ftell(fp);
201 fseek(fp, 8, SEEK_SET);
202 put_index(fp, &timer);
203 put_index(fp, &coins);
204 put_index(fp, &state);
205 fseek(fp, pos, SEEK_SET);
208 /*---------------------------------------------------------------------------*/
210 /* Scan another file (used by demo_scan). */
212 static void demo_scan_file(const char *filename)
215 if ((fp = demo_header_read(config_user(filename), &demos[count])))
231 /* Scan the user directory for files. */
233 if ((h = FindFirstFile(config_user("*"), &d)) != INVALID_HANDLE_VALUE)
236 demo_scan_file(d.cFileName);
237 while (count < MAXDEMO && FindNextFile(h, &d));
254 /* Scan the user directory for files. */
256 if ((dp = opendir(config_user(""))))
258 while (count < MAXDEMO && (ent = readdir(dp)))
259 demo_scan_file(ent->d_name);
267 const char *demo_pick(void)
271 return (n > 0) ? demos[(rand() >> 4) % n].filename : NULL;
274 const struct demo *get_demo(int i)
276 return (0 <= i && i < count) ? &demos[i] : NULL;
279 const char *date_to_str(time_t i)
281 static char str[MAXSTR];
282 struct tm *tm = localtime(&i);
283 strftime(str, MAXSTR, "%c", tm);
287 /*---------------------------------------------------------------------------*/
289 int demo_exists(char *name)
294 strcpy(buf, config_user(name));
295 strcat(buf, REPLAY_EXT);
296 if ((fp = fopen(buf, "r")))
304 void demo_unique(char *name)
308 /* Generate a unique name for a new replay save. */
310 for (i = 1; i < 100; i++)
312 sprintf(name, _("replay%02d"), i);
314 if (!demo_exists(name))
319 /*---------------------------------------------------------------------------*/
321 int demo_play_init(const char *name,
322 const struct level *level,
323 const struct level_game *lg)
327 memset(&demo, 0, sizeof(demo));
329 strncpy(demo.filename, config_user(name), PATHMAX);
330 strcat(demo.filename, REPLAY_EXT);
332 demo.mode = lg->mode;
333 demo.date = time(NULL);
335 config_get_s(CONFIG_PLAYER, demo.player, MAXNAM);
337 strncpy(demo.shot, level->shot, PATHMAX);
338 strncpy(demo.file, level->file, PATHMAX);
339 strncpy(demo.back, level->back, PATHMAX);
340 strncpy(demo.grad, level->grad, PATHMAX);
341 strncpy(demo.song, level->song, PATHMAX);
343 demo.time = lg->time;
344 demo.goal = lg->goal;
345 demo.score = lg->score;
346 demo.balls = lg->balls;
347 demo.times = lg->times;
349 strncpy(demo.nb_version, VERSION, 20);
351 demo_fp = demo_header_write(&demo);
355 audio_music_fade_to(2.0f, level->song);
356 return game_init(level, lg->time, lg->goal);
361 void demo_play_step(float dt)
363 static float fps_track = 0.0f;
364 static float fps_cap = 1.0f / (float) DEMO_FPS_CAP;
369 if (fps_track > fps_cap)
371 put_float(demo_fp, &fps_track);
372 put_game_state(demo_fp);
378 /* Update the demo header using the final level state. */
380 void demo_play_stop(const struct level_game *lg)
384 demo_header_stop(demo_fp, lg->coins, lg->timer, lg->state);
390 int demo_play_saved(void)
392 return demo_exists(USER_REPLAY_FILE);
395 void demo_play_save(const char *name)
400 if (name && demo_exists(USER_REPLAY_FILE)
401 && strcmp(name, USER_REPLAY_FILE) != 0)
403 strncpy(src, config_user(USER_REPLAY_FILE), PATHMAX);
404 strcat(src, REPLAY_EXT);
405 strncpy(dst, config_user(name), PATHMAX);
406 strcat(dst, REPLAY_EXT);
412 /*---------------------------------------------------------------------------*/
414 static int demo_load_level(const struct demo *demo, struct level *level)
415 /* Load the level of the demo and fill the level structure */
417 if (level_load(demo->file, level))
419 level->time = demo->time;
420 level->goal = demo->goal;
427 static struct demo demo_replay; /* The current demo */
428 static struct level demo_level_replay; /* The current level demo-ed*/
430 const struct demo *curr_demo_replay(void)
435 /* Internally load a replay and fill the lg structure (if not NULL) */
437 int demo_replay_init(const char *name, struct level_game *lg)
439 if ((demo_fp = demo_header_read(name, &demo_replay)))
441 if (!demo_load_level(&demo_replay, &demo_level_replay))
446 lg->mode = demo_replay.mode;
447 lg->score = demo_replay.score;
448 lg->times = demo_replay.times;
449 lg->time = demo_replay.time;
450 lg->goal = demo_replay.goal;
452 /* A normal replay demo */
453 audio_music_fade_to(0.5f, demo_replay.song);
454 return game_init(&demo_level_replay, demo_replay.time,
457 else /* A title screen demo */
458 return game_init(&demo_level_replay, demo_replay.time, 0);
464 int demo_replay_step(float *dt)
466 const float g[3] = { 0.0f, -9.8f, 0.0f };
471 get_float(demo_fp, dt);
473 if (feof(demo_fp) == 0)
475 /* Play out current game state for particles, clock, etc. */
477 game_step(g, *dt, &sv);
479 /* Load real current game state from file. */
481 if (get_game_state(demo_fp))
488 void demo_replay_stop(int d)
495 if (d) unlink(demo_replay.filename);
499 void demo_replay_dump_info(void)
501 demo_dump_info(&demo_replay);
504 /*---------------------------------------------------------------------------*/