rockbox/apps/plugins/lib/highscore.c
Steve Bavin 6526577818 Plugin parameters should be const.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17492 a1c6a512-1295-4272-9138-f99709370657
2008-05-13 09:57:56 +00:00

128 lines
3.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "highscore.h"
static const struct plugin_api *rb;
void highscore_init(const struct plugin_api* newrb)
{
rb = newrb;
}
int highscore_save(char *filename, struct highscore *scores, int num_scores)
{
int i;
int fd;
int rc;
char buf[80];
fd = rb->open(filename, O_WRONLY|O_CREAT);
if(fd < 0)
return -1;
for(i = 0;i < num_scores;i++)
{
rb->snprintf(buf, sizeof(buf)-1, "%s:%d:%d\n",
scores[i].name, scores[i].score, scores[i].level);
rc = rb->write(fd, buf, rb->strlen(buf));
if(rc < 0)
{
rb->close(fd);
return -2;
}
}
rb->close(fd);
return 0;
}
int highscore_load(char *filename, struct highscore *scores, int num_scores)
{
int i;
int fd;
char buf[80];
char *name, *score, *level;
char *ptr;
fd = rb->open(filename, O_RDONLY);
rb->memset(scores, 0, sizeof(struct highscore)*(num_scores+1));
if(fd < 0)
return -1;
i = -1;
while(rb->read_line(fd, buf, sizeof(buf)-1) && i < num_scores)
{
i++;
DEBUGF("%s\n", buf);
name = buf;
ptr = rb->strchr(buf, ':');
if ( !ptr )
continue;
*ptr = 0;
ptr++;
rb->strncpy(scores[i].name, name, sizeof(scores[i].name));
DEBUGF("%s\n", scores[i].name);
score = ptr;
ptr = rb->strchr(ptr, ':');
if ( !ptr )
continue;
*ptr = 0;
ptr++;
scores[i].score = rb->atoi(score);
level = ptr;
scores[i].level = rb->atoi(level);
}
return 0;
}
int highscore_update(int score, int level, struct highscore *scores, int num_scores)
{
int i, j;
int new = 0;
/* look through the scores and see if this one is in the top ones */
for(i = num_scores-1;i >= 0; i--)
{
if ((score > scores[i].score))
{
/* Move the rest down one... */
if (i > 0)
{
for (j=1; j<=i; j++)
{
rb->memcpy((void *)&scores[j-1], (void *)&scores[j], sizeof(struct highscore));
}
}
scores[i].score = score;
scores[i].level = level;
/* Need to sort out entering a name... maybe old three letter arcade style */
new = 1;
break;
}
}
return new;
}