world_load.c

   1 #ifndef WORLD_LOAD_C
   2 #define WORLD_LOAD_C
   3
   4 #include "world_load.h"
   5 #include "world_routes.h"
   6 #include "world_gate.h"
   7 #include "ent_skateshop.h"
   8 #include "addon.h"
   9 #include "save.h"
  10 #include "vg/vg_msg.h"
  11 #include "network.h"
  12 #include "player_remote.h"
  13
  14 /*
  15  * load the .mdl file located in path as a world instance
  16  */
  17 static void world_instance_load_mdl( u32 instance_id, const char *path ){
  18    vg_rand_seed( 9001 );
  19
  20    world_instance *world = &world_static.instances[ instance_id ];
  21    world_init_blank( world );
  22    world->status = k_world_status_loading;
  23
  24    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  25
  26    void *allocator = NULL;
  27    if( instance_id == 0 ) allocator = world_static.heap;
  28    else allocator = world_static.instances[instance_id-1].heap;
  29
  30    u32 heap_availible = vg_linear_remaining( allocator );
  31    u32 min_overhead = sizeof(vg_linear_allocator);
  32
  33    if( heap_availible < (min_overhead+1024) ){
  34       vg_fatal_error( "out of memory" );
  35    }
  36
  37    u32 size = heap_availible - min_overhead;
  38    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  39
  40    world->heap = heap;
  41    mdl_context *meta = &world->meta;
  42
  43    mdl_open( meta, path, world->heap );
  44    mdl_load_metadata_block( meta, world->heap );
  45    mdl_load_animation_block( meta, world->heap );
  46    mdl_load_mesh_block( meta, world->heap );
  47
  48    mdl_load_array( meta, &world->ent_gate,      "ent_gate",       heap );
  49    mdl_load_array( meta, &world->ent_camera,    "ent_camera",     heap );
  50    mdl_load_array( meta, &world->ent_spawn,     "ent_spawn",      heap );
  51    mdl_load_array( meta, &world->ent_light,     "ent_light",      heap );
  52    mdl_load_array( meta, &world->ent_route_node,"ent_route_node", heap );
  53    mdl_load_array( meta, &world->ent_path_index,"ent_path_index", heap );
  54    mdl_load_array( meta, &world->ent_checkpoint,"ent_checkpoint", heap );
  55    mdl_load_array( meta, &world->ent_route,     "ent_route",      heap );
  56    mdl_load_array( meta, &world->ent_water,     "ent_water",      heap );
  57    mdl_load_array( meta, &world->ent_audio_clip,"ent_audio_clip", heap );
  58    mdl_load_array( meta, &world->ent_audio,     "ent_audio",      heap );
  59    mdl_load_array( meta, &world->ent_volume,    "ent_volume",     heap );
  60    mdl_load_array( meta, &world->ent_traffic,   "ent_traffic",    heap );
  61    mdl_load_array( meta, &world->ent_marker,    "ent_marker",     heap );
  62    mdl_load_array( meta, &world->ent_skateshop, "ent_skateshop",  heap );
  63    mdl_load_array( meta, &world->ent_swspreview,"ent_swspreview", heap );
  64    mdl_load_array( meta, &world->ent_ccmd,      "ent_ccmd",       heap );
  65    mdl_load_array( meta, &world->ent_objective, "ent_objective",  heap );
  66    mdl_load_array( meta, &world->ent_challenge, "ent_challenge",  heap );
  67    mdl_load_array( meta, &world->ent_relay,     "ent_relay",      heap );
  68    mdl_load_array( meta, &world->ent_cubemap,   "ent_cubemap",    heap );
  69
  70    mdl_array_ptr infos;
  71    mdl_load_array( meta, &infos, "ent_worldinfo", vg_mem.scratch );
  72
  73    if( mdl_arrcount(&infos) ){
  74       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  75    }
  76    else{
  77       world->info.pstr_author = 0;
  78       world->info.pstr_desc = 0;
  79       world->info.pstr_name = 0;
  80       world->info.timezone = 0.0f;
  81    }
  82
  83    time_t t;
  84    struct tm *tm;
  85    time( &t );
  86    tm = gmtime( &t );
  87    world->time = (float)tm->tm_min/20.0f + (world->info.timezone/24.0f);
  88
  89    /* process resources from pack */
  90    world_gen_load_surfaces( world );
  91    world_gen_routes_ent_init( world );
  92    world_gen_entities_init( world );
  93
  94    /* main bulk */
  95    world_gen_generate_meshes( world );
  96    world_gen_routes_generate( instance_id );
  97    world_gen_compute_light_indices( world );
  98    mdl_close( meta );
  99
 100    /* allocate leaderboard buffers */
 101    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 102    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 103
 104    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ ){
 105       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 106       board->data = vg_linear_alloc( heap, NETWORK_LEADERBOARD_MAX_SIZE );
 107       board->status = k_request_status_client_error;
 108       board->cache_time = 0.0;
 109       board->data_len = 0;
 110    }
 111
 112    vg_async_call( async_world_postprocess, world, 0 );
 113    vg_async_stall();
 114 }
 115
 116 struct world_load_complete_data{
 117    savedata_file save;
 118    u32 instance_start, instance_count;
 119 };
 120
 121 static void skaterift_world_load_done( void *payload, u32 size ){
 122    struct world_load_complete_data *data = payload;
 123
 124    vg_msg sav;
 125    vg_msg_init( &sav, data->save.buf, data->save.len );
 126
 127    for( u32 i=0; i<data->instance_count; i++ ){
 128       world_instance *world = &world_static.instances[ data->instance_start+i ];
 129       world_entity_start( world, &sav );
 130    }
 131
 132    world_static.load_state = k_world_loader_none;
 133 }
 134
 135 struct world_load_args {
 136    enum world_purpose purpose;
 137    addon_reg *reg;
 138 };
 139
 140 /*
 141  * Does a complete world switch using the remaining free slots
 142  */
 143 static void skaterift_world_load_thread( void *_args ){
 144    struct world_load_args *args = _args;
 145
 146    addon_reg *reg = args->reg;
 147    world_static.instance_addons[ args->purpose ] = reg;
 148
 149    char path_buf[4096];
 150    vg_str path;
 151    vg_strnull( &path, path_buf, 4096 );
 152
 153    assert( reg );
 154    addon_get_content_folder( reg, &path );
 155
 156    vg_str folder = path;
 157    if( !vg_strgood( &folder ) ) {
 158       vg_error( "Load target too long\n" );
 159       return;
 160    }
 161
 162    char worlds[k_world_max-1][4096];
 163    u32 i=0;
 164
 165    vg_dir dir;
 166    if( !vg_dir_open(&dir, folder.buffer) ){
 167       vg_error( "opendir('%s') failed\n", folder.buffer );
 168       return;
 169    }
 170
 171    while( vg_dir_next_entry(&dir) ){
 172       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 173          const char *d_name = vg_dir_entry_name(&dir);
 174          if( d_name[0] == '.' ) continue;
 175
 176          vg_str file = folder;
 177          vg_strcat( &file, "/" );
 178          vg_strcat( &file, d_name );
 179          if( !vg_strgood( &file ) ) continue;
 180
 181          char *ext = vg_strch( &file, '.' );
 182          if( !ext ) continue;
 183          if( strcmp(ext,".mdl") ) continue;
 184
 185          if( i == k_world_max-1 ){
 186             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 187             break;
 188          }
 189
 190          strcpy( worlds[i++], file.buffer );
 191       }
 192    }
 193    vg_dir_close(&dir);
 194
 195    if( i == 0 ){
 196       vg_warn( "There are no .mdl files in the map folder.\n" );
 197    }
 198
 199    u32 first_index = 0;
 200    for( u32 j=0; j<i; j++ ){
 201       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 202                       sizeof(worlds[j]) };
 203       char *fname = vg_strch( &name, '/' );
 204       if( fname ){
 205          if( !strcmp( fname+1, "main.mdl" ) ){
 206             first_index = j;
 207          }
 208       }
 209    }
 210
 211    u32 instance_start = 0, instance_count = 1;
 212    if( args->purpose == k_world_purpose_client ) instance_start = 1;
 213
 214    world_instance_load_mdl( instance_start, worlds[first_index] );
 215
 216    /* TODO: Support multiply packed worlds */
 217 #if 0
 218    world_loader.generate_point_cloud = 0;
 219    for( u32 j=0; j<i; j++ ){
 220       if( j != first_index ){
 221          world_loader.world_index = j+1;
 222          world_load_mdl( worlds[j] );
 223       }
 224    }
 225 #endif
 226
 227    vg_async_item *final_call =
 228       vg_async_alloc( sizeof(struct world_load_complete_data) );
 229
 230    struct world_load_complete_data *data = final_call->payload;
 231    data->instance_start = instance_start;
 232    data->instance_count = instance_count;
 233
 234    skaterift_world_get_save_path( args->purpose, data->save.path );
 235    savedata_file_read( &data->save );
 236
 237    vg_async_dispatch( final_call, skaterift_world_load_done );
 238    vg_async_stall();
 239 }
 240
 241 /* holding pattern before we can start loading the new world, since we might be
 242  * waiting for audio to stop */
 243 static void skaterift_change_client_world_preupdate(void){
 244    for( u32 i=1; i<k_world_max; i++ ){
 245       world_instance *inst = &world_static.instances[i];
 246
 247       if( inst->status == k_world_status_unloading ){
 248          if( world_freeable( inst ) ){
 249             world_free( inst );
 250          }
 251          return;
 252       }
 253    }
 254
 255    if( vg_loader_availible() ){
 256       vg_info( "worlds cleared, begining load\n" );
 257       world_static.load_state = k_world_loader_load;
 258
 259       vg_linear_clear( vg_async.buffer );
 260       struct world_load_args *args =
 261          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 262       args->purpose = k_world_purpose_client;
 263       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 264
 265       /* this is replaces the already correct reg but we have to set it again
 266        * TOO BAD */
 267
 268       /* finally can start the loader */
 269       vg_loader_start( skaterift_world_load_thread, args );
 270    }
 271 }
 272
 273 /* places all loaded worlds into unloading state */
 274 static void skaterift_change_world_start( addon_reg *reg ){
 275    if( world_static.active_instance != 0 )
 276       vg_error( "Cannot change worlds while in non-root world\n" );
 277    else{
 278       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 279          vg_warn( "World is already loaded\n" );
 280          return;
 281       }
 282
 283       char buf[76];
 284       addon_alias_uid( &reg->alias, buf );
 285       vg_info( "switching to: %s\n", buf );
 286       skaterift_autosave(1);
 287
 288       world_static.load_state = k_world_loader_preload;
 289
 290       vg_linear_clear( vg_mem.scratch ); /* ?? */
 291       vg_info( "unloading old worlds\n" );
 292       world_unlink_nonlocal( &world_static.instances[0] );
 293
 294       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 295          world_instance *inst = &world_static.instances[i];
 296
 297          if( inst->status == k_world_status_loaded ){
 298             inst->status = k_world_status_unloading;
 299             world_fadeout_audio( inst );
 300          }
 301       }
 302
 303       world_static.instance_addons[ k_world_purpose_client ] = reg;
 304       network_send_item( k_netmsg_playeritem_world1 );
 305       relink_all_remote_player_worlds();
 306    }
 307 }
 308
 309 /* console command for the above function */
 310 static int skaterift_change_world_command( int argc, const char *argv[] ){
 311    if( !vg_loader_availible() ) return 0;
 312
 313    if( argc == 1 ){
 314       addon_alias q;
 315       q.type = k_addon_type_world;
 316       q.workshop_id = 0;
 317       vg_strncpy( argv[0], q.foldername, 64, k_strncpy_always_add_null );
 318
 319       u32 reg_id = addon_match( &q );
 320       if( reg_id != 0xffffffff ){
 321          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id );
 322          skaterift_change_world_start( reg );
 323       }
 324       else {
 325          char buf[76];
 326          addon_alias_uid( &q, buf );
 327          vg_error( "Addon '%s' is not installed or not found.\n", buf );
 328       }
 329    }
 330
 331    return 0;
 332 }
 333
 334 /*
 335  * checks:
 336  *  1. to see if all audios owned by the world have been stopped
 337  *  2. that this is the least significant world
 338  */
 339 static int world_freeable( world_instance *world ){
 340    if( world->status != k_world_status_unloading ) return 0;
 341    u8 world_id = (world - world_static.instances) + 1;
 342
 343    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 344       if( world_static.instances[i].status != k_world_status_unloaded ){
 345          return 0;
 346       }
 347    }
 348
 349    int freeable = 1;
 350    audio_lock();
 351    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 352       audio_channel *ch = &vg_audio.channels[i];
 353
 354       if( ch->allocated && (ch->world_id == world_id)){
 355          if( !audio_channel_finished( ch ) ){
 356             freeable = 0;
 357             break;
 358          }
 359       }
 360    }
 361    audio_unlock();
 362    return freeable;
 363 }
 364
 365 /*
 366  * Free all resources for world instance
 367  */
 368 static void world_free( world_instance *world ){
 369    vg_info( "Free world @%p\n", world );
 370
 371    /* free meshes */
 372    mesh_free( &world->mesh_route_lines );
 373    mesh_free( &world->mesh_geo );
 374    mesh_free( &world->mesh_no_collide );
 375    mesh_free( &world->mesh_water );
 376
 377    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 378     * existing buffer objects.
 379     * */
 380    glDeleteBuffers( 1, &world->tbo_light_entities );
 381    glDeleteTextures( 1, &world->tex_light_entities );
 382    glDeleteTextures( 1, &world->tex_light_cubes );
 383
 384    /* delete textures and meshes */
 385    glDeleteTextures( world->texture_count, world->textures );
 386
 387    u32 world_index = world - world_static.instances;
 388    if( world_index ){
 389       vg_linear_del( world_static.instances[world_index-1].heap,
 390                      vg_linear_header(world->heap) );
 391    }
 392
 393    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 394       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 395       glDeleteTextures( 1, &cm->texture_id );
 396       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 397       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 398    }
 399
 400    world->status = k_world_status_unloaded;
 401 }
 402
 403 /*
 404  * reset the world structure without deallocating persistent buffers
 405  * TODO: Make this a memset(0), and have persistent items live in a static loc
 406  */
 407 static void world_init_blank( world_instance *world ){
 408    memset( &world->meta, 0, sizeof(mdl_context) );
 409
 410    world->textures = NULL;
 411    world->texture_count = 0;
 412    world->surfaces = NULL;
 413    world->surface_count = 0;
 414
 415    world->geo_bh = NULL;
 416    world->entity_bh = NULL;
 417    world->entity_list = NULL;
 418    world->rendering_gate = NULL;
 419
 420    world->water.enabled = 0;
 421    world->time = 0.0;
 422
 423    /* default lighting conditions
 424     * -------------------------------------------------------------*/
 425    struct ub_world_lighting *state = &world->ub_lighting;
 426
 427    state->g_light_preview = 0;
 428    state->g_shadow_samples = 8;
 429    state->g_water_fog = 0.04f;
 430
 431    v4_zero( state->g_water_plane );
 432    v4_zero( state->g_depth_bounds );
 433
 434    state->g_shadow_length = 9.50f;
 435    state->g_shadow_spread = 0.65f;
 436
 437    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 438    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 439    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 440    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 441    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 442    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 443 }
 444
 445 #endif /* WORLD_LOAD_C */