save.c

   1 #ifndef SAVE_C
   2 #define SAVE_C
   3
   4 #include "save.h"
   5 #include "addon.h"
   6 #include "vg/vg_msg.h"
   7 #include "vg/vg_log.h"
   8 #include "vg/vg_loader.h"
   9 #include "world.h"
  10
  11 static void savedata_file_write( savedata_file *file ){
  12    savedata_file *sav = file;
  13    FILE *fp = fopen( sav->path, "wb" );
  14    if( fp ){
  15       fwrite( sav->buf, sav->len, 1, fp );
  16       fclose( fp );
  17       vg_success( "savedata written to '%s'\n", sav->path );
  18    }
  19    else {
  20       vg_error( "Error writing savedata (%s)\n", sav->path );
  21    }
  22 }
  23
  24 static void savedata_group_write( savedata_group *group ){
  25    for( u32 i=0; i<group->file_count; i++ ){
  26       savedata_file_write( &group->files[i] );
  27    }
  28 }
  29
  30 static void savedata_file_read( savedata_file *file ){
  31    FILE *fp = fopen( file->path, "rb" );
  32    if( fp ){
  33       file->len = fread( file->buf, 1, sizeof(file->buf), fp );
  34       fclose( fp );
  35    }
  36    else{
  37       file->len = 0;
  38       vg_warn( "Error reading savedata (%s)\n", file->path );
  39    }
  40 }
  41
  42 static void skaterift_write_addon_alias( vg_msg *msg, const char *key,
  43                                          addon_alias *alias ){
  44    if( alias->workshop_id )
  45       vg_msg_wkvnum( msg, key, k_vg_msg_u64, 1, &alias->workshop_id );
  46    else
  47       vg_msg_wkvstr( msg, key, alias->foldername );
  48 }
  49
  50 static void skaterift_write_viewslot( vg_msg *msg, const char *key,
  51                                       enum addon_type type, u16 cache_id ){
  52    if( !cache_id ) return;
  53
  54    struct addon_cache *cache = &addon_system.cache[type];
  55    addon_cache_entry *entry = vg_pool_item( &cache->pool, cache_id );
  56    addon_reg *reg = entry->reg_ptr;
  57
  58    if( reg )
  59       skaterift_write_addon_alias( msg, key, &reg->alias );
  60 }
  61
  62 static void skaterift_read_addon_alias( vg_msg *msg, const char *key,
  63                                         enum addon_type type,
  64                                         addon_alias *alias ){
  65    alias->foldername[0] = '\0';
  66    alias->workshop_id = 0;
  67    alias->type = type;
  68
  69    vg_msg_cmd kv;
  70    if( vg_msg_getkvcmd( msg, key, &kv ) ){
  71       if( kv.code == k_vg_msg_kvstring ){
  72          vg_strncpy( kv.value, alias->foldername, sizeof(alias->foldername),
  73                      k_strncpy_allow_cutoff );
  74       }
  75       else
  76          vg_msg_cast( kv.value, kv.code, &alias->workshop_id, k_vg_msg_u64 );
  77    }
  78 }
  79
  80 static void skaterift_populate_world_savedata( savedata_file *file,
  81                                                enum world_purpose which ){
  82    file->path[0] = '\0';
  83    file->len = 0;
  84    addon_reg *reg = world_static.instance_addons[ which ];
  85
  86    if( !reg ){
  87       vg_error( "Tried to save unspecified world (reg was null)\n" );
  88       return;
  89    }
  90
  91    skaterift_world_get_save_path( which, file->path );
  92
  93    vg_msg sav;
  94    vg_msg_init( &sav, file->buf, sizeof(file->buf) );
  95
  96    world_instance *instance = &world_static.instances[which];
  97    world_entity_serialize( instance, &sav );
  98
  99    vg_msg_frame( &sav, "player" );
 100    {
 101       vg_msg_wkvnum( &sav, "position", k_vg_msg_float|k_vg_msg_32b, 3,
 102                      (which == world_static.active_instance)?
 103                            localplayer.rb.co:
 104                            instance->player_co );
 105    }
 106    vg_msg_end_frame( &sav );
 107
 108    file->len = sav.cur.co;
 109 }
 110
 111 static void skaterift_populate_main_savedata( savedata_file *file ){
 112    strcpy( file->path, str_skaterift_main_save );
 113
 114    vg_msg sav;
 115    vg_msg_init( &sav, file->buf, sizeof(file->buf) );
 116    vg_msg_wkvnum( &sav, "ach", k_vg_msg_u32, 1, &skaterift.achievements );
 117
 118    vg_msg_frame( &sav, "player" );
 119    {
 120       skaterift_write_viewslot( &sav, "board", k_addon_type_board,
 121                                 localplayer.board_view_slot );
 122       skaterift_write_viewslot( &sav, "playermodel", k_addon_type_player,
 123                                 localplayer.playermodel_view_slot );
 124    }
 125    vg_msg_end_frame( &sav );
 126
 127    file->len = sav.cur.co;
 128 }
 129
 130 static int skaterift_autosave( int async ){
 131    if( async )
 132       if( !vg_loader_availible() ) return 0;
 133
 134    u32 save_files = 2;
 135    if( world_static.instances[k_world_purpose_client].status
 136          == k_world_status_loaded ){
 137       save_files ++;
 138    }
 139
 140    vg_linear_clear( vg_async.buffer );
 141    u32 size = sizeof(savedata_group) + sizeof(savedata_file) * save_files;
 142
 143    savedata_group *group;
 144    if( async ){
 145       size = vg_align8( size );
 146       group = vg_linear_alloc( vg_async.buffer, size );
 147    }
 148    else
 149       group = alloca( size );
 150
 151    group->file_count = save_files;
 152    skaterift_populate_main_savedata( &group->files[0] );
 153    skaterift_populate_world_savedata( &group->files[1], k_world_purpose_hub );
 154
 155    if( world_static.instances[ k_world_purpose_client ].status
 156          == k_world_status_loaded ){
 157       skaterift_populate_world_savedata( &group->files[2],
 158                                           k_world_purpose_client );
 159    }
 160
 161    if( async )
 162       vg_loader_start( (void *)savedata_group_write, group );
 163    else
 164       savedata_group_write( group );
 165
 166    return 1;
 167 }
 168
 169 static void skaterift_autosave_synchronous(void){
 170    skaterift_autosave(0);
 171 }
 172
 173 #endif /* SAVE_C */