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    vg_info( "%u\n", sizeof(ent_cubemap) );
  49
  50    MDL_LOAD_ARRAY( meta, &world->ent_gate,      ent_gate,       heap );
  51    MDL_LOAD_ARRAY( meta, &world->ent_camera,    ent_camera,     heap );
  52    MDL_LOAD_ARRAY( meta, &world->ent_spawn,     ent_spawn,      heap );
  53    MDL_LOAD_ARRAY( meta, &world->ent_light,     ent_light,      heap );
  54    MDL_LOAD_ARRAY( meta, &world->ent_route_node,ent_route_node, heap );
  55    MDL_LOAD_ARRAY( meta, &world->ent_path_index,ent_path_index, heap );
  56    MDL_LOAD_ARRAY( meta, &world->ent_checkpoint,ent_checkpoint, heap );
  57    MDL_LOAD_ARRAY( meta, &world->ent_route,     ent_route,      heap );
  58    MDL_LOAD_ARRAY( meta, &world->ent_water,     ent_water,      heap );
  59    MDL_LOAD_ARRAY( meta, &world->ent_audio_clip,ent_audio_clip, heap );
  60    MDL_LOAD_ARRAY( meta, &world->ent_audio,     ent_audio,      heap );
  61    MDL_LOAD_ARRAY( meta, &world->ent_volume,    ent_volume,     heap );
  62    MDL_LOAD_ARRAY( meta, &world->ent_traffic,   ent_traffic,    heap );
  63    MDL_LOAD_ARRAY( meta, &world->ent_marker,    ent_marker,     heap );
  64    MDL_LOAD_ARRAY( meta, &world->ent_skateshop, ent_skateshop,  heap );
  65    MDL_LOAD_ARRAY( meta, &world->ent_swspreview,ent_swspreview, heap );
  66    MDL_LOAD_ARRAY( meta, &world->ent_ccmd,      ent_ccmd,       heap );
  67    MDL_LOAD_ARRAY( meta, &world->ent_objective, ent_objective,  heap );
  68    MDL_LOAD_ARRAY( meta, &world->ent_challenge, ent_challenge,  heap );
  69    MDL_LOAD_ARRAY( meta, &world->ent_relay,     ent_relay,      heap );
  70    MDL_LOAD_ARRAY( meta, &world->ent_cubemap,   ent_cubemap,    heap );
  71    MDL_LOAD_ARRAY( meta, &world->ent_miniworld, ent_miniworld,  heap );
  72    MDL_LOAD_ARRAY( meta, &world->ent_prop,      ent_prop,       heap );
  73    MDL_LOAD_ARRAY( meta, &world->ent_region,    ent_region,     heap );
  74
  75    mdl_array_ptr infos;
  76    MDL_LOAD_ARRAY( meta, &infos, ent_worldinfo, vg_mem.scratch );
  77
  78    world->skybox = k_skybox_default;
  79    if( mdl_arrcount(&infos) ){
  80       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  81
  82       if( world->meta.info.version >= 104 ){
  83          if( MDL_CONST_PSTREQ( &world->meta, world->info.pstr_skybox,"space")){
  84             world->skybox = k_skybox_space;
  85          }
  86       }
  87    }
  88    else{
  89       world->info.pstr_author = 0;
  90       world->info.pstr_desc = 0;
  91       world->info.pstr_name = 0;
  92       world->info.timezone = 0.0f;
  93       world->info.flags = 0;
  94    }
  95
  96    time_t seconds = time(NULL) % ((u32)vg_maxf(1.0f,k_day_length)*60);
  97    world->time  = ((f64)(seconds)/(k_day_length*60.0));
  98    world->time += (world->info.timezone/24.0);
  99
 100    /* process resources from pack */
 101    u64 t4 = SDL_GetPerformanceCounter();
 102    world_gen_load_surfaces( world );
 103    u64 t5 = SDL_GetPerformanceCounter();
 104    world_gen_routes_ent_init( world );
 105    world_gen_entities_init( world );
 106    u64 t6 = SDL_GetPerformanceCounter();
 107
 108    /* main bulk */
 109    u64 t0 = SDL_GetPerformanceCounter();
 110    world_gen_generate_meshes( world );
 111    u64 t1 = SDL_GetPerformanceCounter();
 112    world_gen_routes_generate( instance_id );
 113    u64 t2 = SDL_GetPerformanceCounter();
 114    world_gen_compute_light_indices( world );
 115    u64 t3 = SDL_GetPerformanceCounter();
 116    mdl_close( meta );
 117
 118    u64 utime_mesh = t1-t0,
 119        utime_route = t2-t1,
 120        utime_indices = t3-t2,
 121        utime_tex = t5-t4,
 122        utime_ent = t6-t5,
 123        ufreq = SDL_GetPerformanceFrequency();
 124
 125    f64 ftime_mesh = ((f64)utime_mesh / (f64)ufreq)*1000.0,
 126        ftime_route = ((f64)utime_route / (f64)ufreq)*1000.0,
 127        ftime_ind = ((f64)utime_route / (f64)ufreq)*1000.0,
 128        ftime_tex = ((f64)utime_tex / (f64)ufreq)*1000.0,
 129        ftime_ent = ((f64)utime_ent / (f64)ufreq)*1000.0;
 130
 131    vg_info( "wtime:mesh %.2fms route %.2fms ind %.2fms tex %.2fms ent %.2fms\n",
 132                ftime_mesh, ftime_route, ftime_ind, ftime_tex, ftime_ent );
 133
 134    /* init player position.
 135     *   - this is overriden by the save state when(if) it loads */
 136    ent_spawn *rp = world_find_spawn_by_name( world, "start" );
 137    if( !rp ) rp = world_find_closest_spawn( world, (v3f){0.0f,0.0f,0.0f} );
 138    if( rp )
 139       v3_copy( rp->transform.co, world->player_co );
 140    else{
 141       /* FIXME: we need to find a safe place to put the player_co using
 142        * raycasts. */
 143       v3_zero( world->player_co );
 144    }
 145
 146    /* allocate leaderboard buffers */
 147    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 148    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 149
 150    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ ){
 151       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 152       board->data = vg_linear_alloc( heap, NETWORK_REQUEST_MAX );
 153       board->status = k_request_status_client_error;
 154       board->cache_time = 0.0;
 155       board->data_len = 0;
 156    }
 157
 158    world->routes_ui = vg_linear_alloc( heap,
 159          sizeof(struct route_ui)*mdl_arrcount(&world->ent_route) );
 160
 161    vg_async_call( async_world_postprocess, world, 0 );
 162    vg_async_stall();
 163 }
 164
 165 struct world_load_complete_data{
 166    savedata_file save;
 167    enum world_purpose purpose;
 168 };
 169
 170 static void skaterift_world_load_done( void *payload, u32 size ){
 171    struct world_load_complete_data *data = payload;
 172    world_instance *world = &world_static.instances[ data->purpose ];
 173
 174    vg_msg sav;
 175    vg_msg_init( &sav, data->save.buf, data->save.len );
 176
 177    if( data->purpose != k_world_purpose_hub ){
 178       vg_msg player_frame = sav;
 179       if( vg_msg_seekframe( &player_frame, "player" ) ){
 180          vg_msg_getkvv3f( &player_frame, "position", world->player_co, NULL );
 181       }
 182    }
 183
 184    world_entity_start( world, &sav );
 185    world->status = k_world_status_loaded;
 186    world_static.load_state = k_world_loader_none;
 187 }
 188
 189 struct world_load_args {
 190    enum world_purpose purpose;
 191    addon_reg *reg;
 192 };
 193
 194 /*
 195  * Does a complete world switch using the remaining free slots
 196  */
 197 static void skaterift_world_load_thread( void *_args ){
 198    struct world_load_args args = *((struct world_load_args *)_args);
 199
 200    addon_reg *reg = args.reg;
 201    world_static.instance_addons[ args.purpose ] = reg;
 202
 203    char uid[ADDON_UID_MAX];
 204    addon_alias_uid( &reg->alias, uid );
 205    vg_info( "LOAD WORLD %s @%d\n", uid, args.purpose );
 206
 207    char path_buf[4096];
 208    vg_str path;
 209    vg_strnull( &path, path_buf, 4096 );
 210
 211    assert( reg );
 212    addon_get_content_folder( reg, &path, 1 );
 213
 214    vg_str folder = path;
 215    if( !vg_strgood( &folder ) ) {
 216       vg_error( "Load target too long\n" );
 217       return;
 218    }
 219
 220    char worlds[k_world_max-1][4096];
 221    u32 i=0;
 222
 223    vg_dir dir;
 224    if( !vg_dir_open(&dir, folder.buffer) ){
 225       vg_error( "opendir('%s') failed\n", folder.buffer );
 226       return;
 227    }
 228
 229    while( vg_dir_next_entry(&dir) ){
 230       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 231          const char *d_name = vg_dir_entry_name(&dir);
 232          if( d_name[0] == '.' ) continue;
 233
 234          vg_str file = folder;
 235          vg_strcat( &file, "/" );
 236          vg_strcat( &file, d_name );
 237          if( !vg_strgood( &file ) ) continue;
 238
 239          char *ext = vg_strch( &file, '.' );
 240          if( !ext ) continue;
 241          if( strcmp(ext,".mdl") ) continue;
 242
 243          if( i == k_world_max-1 ){
 244             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 245             break;
 246          }
 247
 248          strcpy( worlds[i++], file.buffer );
 249       }
 250    }
 251    vg_dir_close(&dir);
 252
 253    if( i == 0 ){
 254       vg_warn( "There are no .mdl files in the map folder.\n" );
 255    }
 256
 257    u32 first_index = 0;
 258    for( u32 j=0; j<i; j++ ){
 259       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 260                       sizeof(worlds[j]) };
 261       char *fname = vg_strch( &name, '/' );
 262       if( fname ){
 263          if( !strcmp( fname+1, "main.mdl" ) ){
 264             first_index = j;
 265          }
 266       }
 267    }
 268
 269    world_instance_load_mdl( args.purpose, worlds[first_index] );
 270
 271    vg_async_item *final_call =
 272       vg_async_alloc( sizeof(struct world_load_complete_data) );
 273
 274    struct world_load_complete_data *data = final_call->payload;
 275    data->purpose = args.purpose;
 276
 277    skaterift_world_get_save_path( args.purpose, data->save.path );
 278    savedata_file_read( &data->save );
 279
 280    vg_async_dispatch( final_call, skaterift_world_load_done );
 281    vg_async_stall();
 282 }
 283
 284 /* holding pattern before we can start loading the new world, since we might be
 285  * waiting for audio to stop */
 286 static void skaterift_change_client_world_preupdate(void){
 287    for( u32 i=1; i<k_world_max; i++ ){
 288       world_instance *inst = &world_static.instances[i];
 289
 290       if( inst->status == k_world_status_unloading ){
 291          if( world_freeable( inst ) ){
 292             world_free( inst );
 293          }
 294          return;
 295       }
 296    }
 297
 298    if( vg_loader_availible() ){
 299       vg_info( "worlds cleared, begining load\n" );
 300       world_static.load_state = k_world_loader_load;
 301
 302       vg_linear_clear( vg_async.buffer );
 303       struct world_load_args *args =
 304          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 305       args->purpose = k_world_purpose_client;
 306       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 307
 308       /* this is replaces the already correct reg but we have to set it again
 309        * TOO BAD */
 310
 311       /* finally can start the loader */
 312       vg_loader_start( skaterift_world_load_thread, args );
 313    }
 314 }
 315
 316 /* places all loaded worlds into unloading state */
 317 static void skaterift_change_world_start( addon_reg *reg ){
 318    if( world_static.active_instance != 0 )
 319       vg_error( "Cannot change worlds while in non-root world\n" );
 320    else{
 321       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 322          vg_warn( "World is already loaded\n" );
 323          return;
 324       }
 325
 326       char buf[76];
 327       addon_alias_uid( &reg->alias, buf );
 328       vg_info( "switching to: %s\n", buf );
 329       skaterift_autosave(1);
 330
 331       world_static.load_state = k_world_loader_preload;
 332
 333       vg_linear_clear( vg_mem.scratch ); /* ?? */
 334       vg_info( "unloading old worlds\n" );
 335
 336       world_instance *client_world =
 337          &world_static.instances[ k_world_purpose_client ];
 338
 339       if( client_world->status == k_world_status_loaded ){
 340          client_world->status = k_world_status_unloading;
 341          world_fadeout_audio( client_world );
 342       }
 343
 344       world_static.instance_addons[ k_world_purpose_client ] = reg;
 345       network_send_item( k_netmsg_playeritem_world1 );
 346       relink_all_remote_player_worlds();
 347       world_unlink_nonlocal( &world_static.instances[k_world_purpose_hub] );
 348    }
 349 }
 350
 351 /* console command for the above function */
 352 static int skaterift_load_world_command( int argc, const char *argv[] ){
 353    if( !vg_loader_availible() ) return 0; /* FIXME */
 354
 355    if( argc == 1 ){
 356       addon_alias q;
 357       addon_uid_to_alias( argv[0], &q );
 358
 359       u32 reg_id = addon_match( &q );
 360       if( reg_id != 0xffffffff ){
 361          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id, 0 );
 362          skaterift_change_world_start( reg );
 363       }
 364       else {
 365          vg_error( "Addon '%s' is not installed or not found.\n", argv[0] );
 366       }
 367    }
 368    else {
 369       vg_info( "worlds availible to load:\n" );
 370
 371       for( int i=0; i<addon_count(k_addon_type_world,0); i ++ ){
 372          addon_reg *w = get_addon_from_index( k_addon_type_world, i, 0);
 373
 374          char buf[ADDON_UID_MAX];
 375          addon_alias_uid( &w->alias, buf );
 376
 377          if( w->flags & ADDON_REG_HIDDEN )
 378             vg_info( "  %s [hidden]\n", buf );
 379          else
 380             vg_info( "  %s\n", buf );
 381       }
 382    }
 383
 384    return 0;
 385 }
 386
 387 /*
 388  * checks:
 389  *  1. to see if all audios owned by the world have been stopped
 390  *  2. that this is the least significant world
 391  */
 392 static int world_freeable( world_instance *world ){
 393    if( world->status != k_world_status_unloading ) return 0;
 394    u8 world_id = (world - world_static.instances) + 1;
 395
 396    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 397       if( world_static.instances[i].status != k_world_status_unloaded ){
 398          return 0;
 399       }
 400    }
 401
 402    int freeable = 1;
 403    audio_lock();
 404    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 405       audio_channel *ch = &vg_audio.channels[i];
 406
 407       if( ch->allocated && (ch->world_id == world_id)){
 408          if( !audio_channel_finished( ch ) ){
 409             freeable = 0;
 410             break;
 411          }
 412       }
 413    }
 414    audio_unlock();
 415    return freeable;
 416 }
 417
 418 /*
 419  * Free all resources for world instance
 420  */
 421 static void world_free( world_instance *world ){
 422    vg_info( "Free world @%p\n", world );
 423
 424    /* free meshes */
 425    mesh_free( &world->mesh_route_lines );
 426    mesh_free( &world->mesh_geo );
 427    mesh_free( &world->mesh_no_collide );
 428    mesh_free( &world->mesh_water );
 429
 430    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 431     * existing buffer objects.
 432     * */
 433    glDeleteBuffers( 1, &world->tbo_light_entities );
 434    glDeleteTextures( 1, &world->tex_light_entities );
 435    glDeleteTextures( 1, &world->tex_light_cubes );
 436
 437    /* delete textures and meshes */
 438    glDeleteTextures( world->texture_count-1, world->textures+1 );
 439
 440    u32 world_index = world - world_static.instances;
 441    if( world_index ){
 442       vg_linear_del( world_static.instances[world_index-1].heap,
 443                      vg_linear_header(world->heap) );
 444    }
 445
 446    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 447       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 448       glDeleteTextures( 1, &cm->texture_id );
 449       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 450       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 451    }
 452
 453    world->status = k_world_status_unloaded;
 454 }
 455
 456 /*
 457  * reset the world structure without deallocating persistent buffers
 458  * TODO: Make this a memset(0), and have persistent items live in a static loc
 459  */
 460 static void world_init_blank( world_instance *world ){
 461    memset( &world->meta, 0, sizeof(mdl_context) );
 462
 463    world->textures = NULL;
 464    world->texture_count = 0;
 465    world->surfaces = NULL;
 466    world->surface_count = 0;
 467
 468    world->geo_bh = NULL;
 469    world->entity_bh = NULL;
 470    world->entity_list = NULL;
 471    world->rendering_gate = NULL;
 472
 473    world->water.enabled = 0;
 474    world->time = 0.0;
 475
 476    /* default lighting conditions
 477     * -------------------------------------------------------------*/
 478    struct ub_world_lighting *state = &world->ub_lighting;
 479
 480    state->g_light_preview = 0;
 481    state->g_shadow_samples = 8;
 482    state->g_water_fog = 0.04f;
 483
 484    v4_zero( state->g_water_plane );
 485    v4_zero( state->g_depth_bounds );
 486
 487    state->g_shadow_length = 9.50f;
 488    state->g_shadow_spread = 0.65f;
 489
 490    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 491    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 492    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 493    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 494    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 495    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 496 }
 497
 498 #endif /* WORLD_LOAD_C */