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Resume feature for Rockblox by dumping the state upon exiting and loading it when starting rockblox.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20967 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2009-05-16 18:52:00 +00:00
parent 732ef1e157
commit 399a094b65
1 changed files with 69 additions and 16 deletions
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85
apps/plugins/rockblox.c
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@ -717,6 +717,7 @@ figures[BLOCKS_NUM] = {
/* Rockbox File System only supports full filenames inc dir */
#define HIGH_SCORE PLUGIN_GAMES_DIR "/rockblox.score"
#define RESUME_FILE PLUGIN_GAMES_DIR "/rockblox.resume"
#define MAX_HIGH_SCORES 5
/* Default High Scores... */
@ -728,6 +729,11 @@ static int t_rand (int range)
return rb->rand () % range;
}
static inline void show_game_over (void)
{
rb->splash(HZ,"Game over!");
}
/* init the board array to have no blocks */
static void init_board (void)
{
@ -776,18 +782,55 @@ static void show_highscores (void)
}
#endif
static void init_rockblox (void)
/* Returns >0 on successful read AND if the game wasn't over, else 0 */
static int load_resume(void)
{
int fd;
fd = rb->open(RESUME_FILE, O_RDONLY);
if (fd < 0)
return 0;
if (rb->read(fd, &rockblox_status, sizeof(struct _rockblox_status))
< (ssize_t)sizeof(struct _rockblox_status))
{
rb->splash(HZ/2, "Loading Rockblox resume info failed");
return 0;
}
rb->close(fd);
if (rockblox_status.gameover)
show_game_over();
return !rockblox_status.gameover;
}
/* Returns >0 on success, else 0 */
static int dump_resume(void)
{
int fd;
fd = rb->open(RESUME_FILE, O_WRONLY|O_CREAT);
if (fd <= 0)
goto fail;
if (rb->write(fd, &rockblox_status, sizeof(struct _rockblox_status))
<= 0)
{
rb->close(fd);
goto fail;
}
rb->close(fd);
return 1;
fail:
rb->splash(HZ/2, "Writing Rockblox resume info failed");
return 0;
}
static void init_rockblox (bool resume)
{
highscore_update(rockblox_status.score, rockblox_status.level, Highest,
MAX_HIGH_SCORES);
rockblox_status.level = 1;
rockblox_status.lines = 0;
rockblox_status.score = 0;
rockblox_status.nf = t_rand (BLOCKS_NUM);
rockblox_status.gameover = false;
init_board ();
#ifdef HAVE_LCD_BITMAP
rb->lcd_bitmap (rockblox_background, 0, 0, LCD_WIDTH, LCD_HEIGHT);
#else /* HAVE_LCD_CHARCELLS */
@ -799,6 +842,17 @@ static void init_rockblox (void)
pgfx_fillrect (15, 7, 2, 7);
pgfx_update();
#endif
if (!resume || !load_resume())
{
rockblox_status.level = 1;
rockblox_status.lines = 0;
rockblox_status.score = 0;
rockblox_status.nf = t_rand(BLOCKS_NUM);
init_board ();
new_block ();
}
draw_next_block();
show_details ();
#ifdef HIGH_SCORE_Y
show_highscores ();
@ -1110,8 +1164,6 @@ static int rockblox_loop (void)
int lastbutton = BUTTON_NONE;
long next_down_tick = *rb->current_tick + level_speed(rockblox_status.level);
new_block ();
while (1) {
#ifdef HAS_BUTTON_HOLD
if (rb->button_hold ()) {
@ -1204,8 +1256,7 @@ static int rockblox_loop (void)
#ifdef ROCKBLOX_RESTART
case ROCKBLOX_RESTART:
rb->splash (HZ * 1, "Restarting...");
init_rockblox ();
new_block ();
init_rockblox (false);
break;
#endif
@ -1256,8 +1307,8 @@ static int rockblox_loop (void)
#if LCD_DEPTH >= 2
rb->lcd_set_foreground (LCD_BLACK);
#endif
rb->splash (HZ * 2, "Game Over");
init_rockblox ();
show_game_over();
init_rockblox (false);
}
refresh_board ();
@ -1293,7 +1344,7 @@ enum plugin_status plugin_start (const void *parameter)
/* Turn off backlight timeout */
backlight_force_on(); /* backlight control in lib/helper.c */
init_rockblox ();
init_rockblox (true);
ret = rockblox_loop ();
#ifndef HAVE_LCD_BITMAP
@ -1303,5 +1354,7 @@ enum plugin_status plugin_start (const void *parameter)
highscore_save(HIGH_SCORE,Highest,MAX_HIGH_SCORES);
backlight_use_settings(); /* backlight control in lib/helper.c */
dump_resume();
return ret;
}