rockbox/apps/plugins/lib/highscore.c
Andrew Mahone 23d9812273 loader-initialized global plugin API:
struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by
__header.api

the loader uses this pointer to initialize rb before calling entry_point

entry_point is no longer passed a pointer to the plugin API

all plugins, and pluginlib functions, are modified to refer to the
global rb

pluginlib functions which only served to copy the API pointer are
removed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
2009-01-16 10:34:40 +00:00

123 lines
3.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Linus Nielsen Feltzing
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "highscore.h"
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;
}