config.c

   1 #include "config.h"
   2 #include <stdio.h>
   3 #include <SDL/SDL_keysym.h>
   4
   5 Config conf;
   6 int loaded=0;
   7
   8 void DefaultConfig();
   9
  10 const Config GetConfig(){
  11         int e;
  12         if(!loaded){
  13                 if(e=LoadConfig()){
  14                         printf("Config error:%d\n",e);
  15                         DefaultConfig();
  16                         printf("Writing default config\n");
  17                         SaveConfig();
  18                 }
  19                 loaded=1;
  20         }
  21         return conf;
  22 }
  23
  24 void SetConfig(const Config c){
  25         conf=c;
  26 }
  27
  28 //return values
  29 //0 -O.K.
  30 //1 -conf.txt doesn't exists
  31 //2..8 missing values
  32 int LoadConfig(){
  33         FILE *fp;
  34
  35         fp=(FILE*)fopen(CONFIG_FILENAME, "r");
  36         if(fp==0)
  37                 return 1;
  38         if(fscanf(fp,"%u", &conf.screen_width)==EOF)return 2;
  39         if(fscanf(fp,"%u", &conf.screen_height)==EOF)return 3;
  40         if(fscanf(fp,"%u", &conf.fullscreen)==EOF)return 3;
  41         if(fscanf(fp,"%u", &conf.texture_lod)==EOF)return 3;
  42
  43         if(fscanf(fp,"%u", &conf.pl1_key_up)==EOF)return 4;
  44         if(fscanf(fp,"%u", &conf.pl1_key_down)==EOF)return 5;
  45         if(fscanf(fp,"%u", &conf.pl1_key_left)==EOF)return 6;
  46         if(fscanf(fp,"%u", &conf.pl1_key_right)==EOF)return 7;
  47         if(fscanf(fp,"%u", &conf.pl1_key_fire)==EOF)return 8;
  48         if(fscanf(fp,"%u", &conf.pl1_key_suicide)==EOF)return 8;
  49
  50         if(fscanf(fp,"%u", &conf.pl2_key_up)==EOF)return 4;
  51         if(fscanf(fp,"%u", &conf.pl2_key_down)==EOF)return 5;
  52         if(fscanf(fp,"%u", &conf.pl2_key_left)==EOF)return 6;
  53         if(fscanf(fp,"%u", &conf.pl2_key_right)==EOF)return 7;
  54         if(fscanf(fp,"%u", &conf.pl2_key_fire)==EOF)return 8;
  55         if(fscanf(fp,"%u", &conf.pl2_key_suicide)==EOF)return 8;
  56         fclose(fp);
  57
  58         return 0;
  59 }
  60
  61 //0-O.K.
  62 //1-cannot open for writing
  63 int SaveConfig(){
  64         FILE *fp;
  65
  66         fp=(FILE*)fopen(CONFIG_FILENAME, "w");
  67         if(fp==0)
  68                 return 1;
  69         if(fprintf(fp,"%u\n", conf.screen_width)<0)return 2;
  70         if(fprintf(fp,"%u\n", conf.screen_height)<0)return 3;
  71         if(fprintf(fp,"%u\n", conf.fullscreen)<0)return 3;
  72         if(fprintf(fp,"%u\n", conf.texture_lod)<0)return 3;
  73
  74         if(fprintf(fp,"%u\n", conf.pl1_key_up)<0)return 4;
  75         if(fprintf(fp,"%u\n", conf.pl1_key_down)<0)return 5;
  76         if(fprintf(fp,"%u\n", conf.pl1_key_left)<0)return 6;
  77         if(fprintf(fp,"%u\n", conf.pl1_key_right)<0)return 7;
  78         if(fprintf(fp,"%u\n", conf.pl1_key_fire)<0)return 8;
  79         if(fprintf(fp,"%u\n", conf.pl1_key_suicide)<0)return 8;
  80
  81         if(fprintf(fp,"%u\n", conf.pl2_key_up)<0)return 4;
  82         if(fprintf(fp,"%u\n", conf.pl2_key_down)<0)return 5;
  83         if(fprintf(fp,"%u\n", conf.pl2_key_left)<0)return 6;
  84         if(fprintf(fp,"%u\n", conf.pl2_key_right)<0)return 7;
  85         if(fprintf(fp,"%u\n", conf.pl2_key_fire)<0)return 8;
  86         if(fprintf(fp,"%u\n", conf.pl2_key_suicide)<0)return 8;
  87         fclose(fp);
  88
  89         return 0;
  90 }
  91
  92 void DefaultConfig(){
  93         conf.screen_width=800;
  94         conf.screen_height=600;
  95         conf.fullscreen=0;
  96         conf.texture_lod=0;
  97
  98         conf.pl1_key_up=SDLK_UP;
  99         conf.pl1_key_down=SDLK_DOWN;
 100         conf.pl1_key_left=SDLK_LEFT;
 101         conf.pl1_key_right=SDLK_RIGHT;
 102         conf.pl1_key_fire=SDLK_RCTRL;
 103         conf.pl1_key_suicide=SDLK_F12;
 104
 105         conf.pl2_key_up=SDLK_w;
 106         conf.pl2_key_down=SDLK_s;
 107         conf.pl2_key_left=SDLK_a;
 108         conf.pl2_key_right=SDLK_d;
 109         conf.pl2_key_fire=SDLK_LCTRL;
 110         conf.pl2_key_suicide=SDLK_F11;
 111 }