apps/plugins/lib/highscore.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Linus Nielsen Feltzing
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "plugin.h"
  22 #include "highscore.h"
  23
  24 static bool highscore_updated = false;
  25
  26 int highscore_save(char *filename, struct highscore *scores, int num_scores)
  27 {
  28     int i;
  29     int fd;
  30     int rc;
  31     char buf[80];
  32
  33     if(!highscore_updated)
  34         return 1;
  35
  36     fd = rb->open(filename, O_WRONLY|O_CREAT);
  37     if(fd < 0)
  38         return -1;
  39
  40     for(i = 0;i < num_scores;i++)
  41     {
  42         rb->snprintf(buf, sizeof(buf), "%d:%d:%s\n",
  43                      scores[i].score, scores[i].level, scores[i].name);
  44         rc = rb->write(fd, buf, rb->strlen(buf));
  45         if(rc < 0)
  46         {
  47             rb->close(fd);
  48             return -2;
  49         }
  50     }
  51     rb->close(fd);
  52     highscore_updated = false;
  53     return 0;
  54 }
  55
  56 int highscore_load(char *filename, struct highscore *scores, int num_scores)
  57 {
  58     int i;
  59     int fd;
  60     char buf[80];
  61     char *score, *level, *name;
  62
  63     rb->memset(scores, 0, sizeof(struct highscore)*num_scores);
  64
  65     fd = rb->open(filename, O_RDONLY);
  66     if(fd < 0)
  67         return -1;
  68
  69     i = 0;
  70     while(rb->read_line(fd, buf, sizeof(buf)) > 0 && i < num_scores)
  71     {
  72         DEBUGF("%s\n", buf);
  73
  74         if ( !rb->settings_parseline(buf, &score, &level) )
  75             continue;
  76         if ( !rb->settings_parseline(level, &level, &name) )
  77             continue;
  78
  79         scores[i].score = rb->atoi(score);
  80         scores[i].level = rb->atoi(level);
  81         rb->strlcpy(scores[i].name, name, sizeof(scores[i].name));
  82         i++;
  83     }
  84     rb->close(fd);
  85     highscore_updated = false;
  86     return 0;
  87 }
  88
  89 int highscore_update(int score, int level, const char *name,
  90                      struct highscore *scores, int num_scores)
  91 {
  92     int pos;
  93     struct highscore *entry;
  94
  95     if (!highscore_would_update(score, scores, num_scores))
  96         return -1;
  97
  98     pos = num_scores-1;
  99     while (pos > 0 && score > scores[pos-1].score)
 100     {
 101         /* move down one */
 102         rb->memcpy((void *)&scores[pos], (void *)&scores[pos-1],
 103                    sizeof(struct highscore));
 104         pos--;
 105     }
 106
 107     entry = scores + pos;
 108     entry->score = score;
 109     entry->level = level;
 110     rb->strlcpy(entry->name, name, sizeof(entry->name));
 111
 112     highscore_updated = true;
 113     return pos;
 114 }
 115
 116 bool highscore_would_update(int score, struct highscore *scores,
 117                             int num_scores)
 118 {
 119     return (num_scores > 0) && (score > scores[num_scores-1].score);
 120 }
 121
 122 #ifdef HAVE_LCD_BITMAP
 123 void highscore_show(int position, struct highscore *scores, int num_scores, bool show_level)
 124 {
 125     int i, w, h;
 126     char str[30];
 127 #define MARGIN 5
 128 #ifdef HAVE_LCD_COLOR
 129     rb->lcd_set_background(LCD_BLACK);
 130     rb->lcd_set_foreground(LCD_WHITE);
 131 #endif
 132     rb->lcd_clear_display();
 133
 134     rb->lcd_setfont(FONT_UI);
 135     rb->lcd_getstringsize("High Scores", &w, &h);
 136     /* check wether it fits on screen */
 137     if ((4*h + h*(num_scores-1) + MARGIN) > LCD_HEIGHT) {
 138         rb->lcd_setfont(FONT_SYSFIXED);
 139         rb->lcd_getstringsize("High Scores", &w, &h);
 140     }
 141     rb->lcd_putsxy(LCD_WIDTH/2-w/2, MARGIN, "High Scores");
 142     rb->lcd_putsxy(LCD_WIDTH/4-w/4,2*h, "Score");
 143
 144     /* Decide whether to display the level column or not */
 145     if(show_level) {
 146         rb->lcd_putsxy(LCD_WIDTH*3/4-w/4,2*h, "Level");
 147     }
 148
 149     for (i = 0; i<num_scores; i++)
 150     {
 151 #ifdef HAVE_LCD_COLOR
 152         if (i == position) {
 153             rb->lcd_set_foreground(LCD_RGBPACK(245,0,0));
 154         }
 155 #endif
 156         rb->snprintf (str, sizeof (str), "%d)", i+1);
 157         rb->lcd_putsxy (MARGIN,3*h + h*i, str);
 158         rb->snprintf (str, sizeof (str), "%d", scores[i].score);
 159         rb->lcd_putsxy (LCD_WIDTH/4-w/4,3*h + h*i, str);
 160
 161         /* Decide whether to display the level column or not */
 162         if(show_level) {
 163             rb->snprintf (str, sizeof (str), "%d", scores[i].level);
 164             rb->lcd_putsxy (LCD_WIDTH*3/4-w/4,3*h + h*i, str);
 165         }
 166
 167         if(i == position) {
 168 #ifdef HAVE_LCD_COLOR
 169             rb->lcd_set_foreground(LCD_WHITE);
 170 #else
 171             rb->lcd_hline(MARGIN, LCD_WIDTH-MARGIN, 3*h + h*(i+1));
 172 #endif
 173         }
 174     }
 175     rb->lcd_update();
 176     rb->sleep(HZ/2);
 177     rb->button_clear_queue();
 178     rb->button_get(true);
 179     rb->lcd_setfont(FONT_SYSFIXED);
 180 }
 181 #endif /* HAVE_LCD_BITMAP */