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    world_instance *world = &world_static.instances[ instance_id ];
  19    world_init_blank( world );
  20    world->status = k_world_status_loading;
  21
  22    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  23
  24    void *allocator = NULL;
  25    if( instance_id == 0 ) allocator = world_static.heap;
  26    else allocator = world_static.instances[instance_id-1].heap;
  27
  28    u32 heap_availible = vg_linear_remaining( allocator );
  29    u32 min_overhead = sizeof(vg_linear_allocator);
  30
  31    if( heap_availible < (min_overhead+1024) ){
  32       vg_fatal_error( "out of memory" );
  33    }
  34
  35    u32 size = heap_availible - min_overhead;
  36    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  37
  38    world->heap = heap;
  39    mdl_context *meta = &world->meta;
  40
  41    mdl_open( meta, path, world->heap );
  42    mdl_load_metadata_block( meta, world->heap );
  43    mdl_load_animation_block( meta, world->heap );
  44    mdl_load_mesh_block( meta, world->heap );
  45
  46    vg_info( "%u\n", sizeof(ent_cubemap) );
  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    MDL_LOAD_ARRAY( meta, &world->ent_miniworld, ent_miniworld,  heap );
  70    MDL_LOAD_ARRAY( meta, &world->ent_prop,      ent_prop,       heap );
  71    MDL_LOAD_ARRAY( meta, &world->ent_region,    ent_region,     heap );
  72
  73    mdl_array_ptr infos;
  74    MDL_LOAD_ARRAY( meta, &infos, ent_worldinfo, vg_mem.scratch );
  75
  76    world->skybox = k_skybox_default;
  77    if( mdl_arrcount(&infos) ){
  78       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  79
  80       if( world->meta.info.version >= 104 ){
  81          if( MDL_CONST_PSTREQ( &world->meta, world->info.pstr_skybox,"space")){
  82             world->skybox = k_skybox_space;
  83          }
  84       }
  85    }
  86    else{
  87       world->info.pstr_author = 0;
  88       world->info.pstr_desc = 0;
  89       world->info.pstr_name = 0;
  90       world->info.timezone = 0.0f;
  91       world->info.flags = 0;
  92    }
  93
  94    time_t seconds = time(NULL) % ((u32)vg_maxf(1.0f,k_day_length)*60);
  95    world->time  = ((f64)(seconds)/(k_day_length*60.0));
  96    world->time += (world->info.timezone/24.0);
  97
  98    /* process resources from pack */
  99    u64 t4 = SDL_GetPerformanceCounter();
 100    world_gen_load_surfaces( world );
 101    u64 t5 = SDL_GetPerformanceCounter();
 102    world_gen_routes_ent_init( world );
 103    world_gen_entities_init( world );
 104    u64 t6 = SDL_GetPerformanceCounter();
 105
 106    /* main bulk */
 107    u64 t0 = SDL_GetPerformanceCounter();
 108    world_gen_generate_meshes( world );
 109    u64 t1 = SDL_GetPerformanceCounter();
 110    world_gen_routes_generate( instance_id );
 111    u64 t2 = SDL_GetPerformanceCounter();
 112    world_gen_compute_light_indices( world );
 113    u64 t3 = SDL_GetPerformanceCounter();
 114    mdl_close( meta );
 115
 116    u64 utime_mesh = t1-t0,
 117        utime_route = t2-t1,
 118        utime_indices = t3-t2,
 119        utime_tex = t5-t4,
 120        utime_ent = t6-t5,
 121        ufreq = SDL_GetPerformanceFrequency();
 122
 123    f64 ftime_mesh = ((f64)utime_mesh / (f64)ufreq)*1000.0,
 124        ftime_route = ((f64)utime_route / (f64)ufreq)*1000.0,
 125        ftime_ind = ((f64)utime_route / (f64)ufreq)*1000.0,
 126        ftime_tex = ((f64)utime_tex / (f64)ufreq)*1000.0,
 127        ftime_ent = ((f64)utime_ent / (f64)ufreq)*1000.0;
 128
 129    vg_info( "wtime:mesh %.2fms route %.2fms ind %.2fms tex %.2fms ent %.2fms\n",
 130                ftime_mesh, ftime_route, ftime_ind, ftime_tex, ftime_ent );
 131
 132    /* init player position.
 133     *   - this is overriden by the save state when(if) it loads */
 134    ent_spawn *rp = world_find_spawn_by_name( world, "start" );
 135    if( !rp ) rp = world_find_closest_spawn( world, (v3f){0.0f,0.0f,0.0f} );
 136    if( rp )
 137       v3_copy( rp->transform.co, world->player_co );
 138    else{
 139       /* FIXME: we need to find a safe place to put the player_co using
 140        * raycasts. */
 141       v3_zero( world->player_co );
 142    }
 143
 144    /* allocate leaderboard buffers */
 145    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 146    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 147
 148    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ ){
 149       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 150       board->data = vg_linear_alloc( heap, NETWORK_REQUEST_MAX );
 151       board->status = k_request_status_client_error;
 152       board->cache_time = 0.0;
 153       board->data_len = 0;
 154    }
 155
 156    world->routes_ui = vg_linear_alloc( heap,
 157          sizeof(struct route_ui)*mdl_arrcount(&world->ent_route) );
 158
 159    vg_async_call( async_world_postprocess, world, 0 );
 160    vg_async_stall();
 161 }
 162
 163 struct world_load_complete_data{
 164    savedata_file save;
 165    enum world_purpose purpose;
 166 };
 167
 168 static void skaterift_world_load_done( void *payload, u32 size ){
 169    struct world_load_complete_data *data = payload;
 170    world_instance *world = &world_static.instances[ data->purpose ];
 171
 172    vg_msg sav;
 173    vg_msg_init( &sav, data->save.buf, data->save.len );
 174
 175    if( data->purpose != k_world_purpose_hub ){
 176       vg_msg player_frame = sav;
 177       if( vg_msg_seekframe( &player_frame, "player" ) ){
 178          vg_msg_getkvv3f( &player_frame, "position", world->player_co, NULL );
 179       }
 180    }
 181
 182    world_entity_start( world, &sav );
 183    world->status = k_world_status_loaded;
 184    world_static.load_state = k_world_loader_none;
 185 }
 186
 187 struct world_load_args {
 188    enum world_purpose purpose;
 189    addon_reg *reg;
 190 };
 191
 192 /*
 193  * Does a complete world switch using the remaining free slots
 194  */
 195 static void skaterift_world_load_thread( void *_args ){
 196    struct world_load_args args = *((struct world_load_args *)_args);
 197
 198    addon_reg *reg = args.reg;
 199    world_static.instance_addons[ args.purpose ] = reg;
 200
 201    char uid[ADDON_UID_MAX];
 202    addon_alias_uid( &reg->alias, uid );
 203    vg_info( "LOAD WORLD %s @%d\n", uid, args.purpose );
 204
 205    char path_buf[4096];
 206    vg_str path;
 207    vg_strnull( &path, path_buf, 4096 );
 208
 209    assert( reg );
 210    addon_get_content_folder( reg, &path, 1 );
 211
 212    vg_str folder = path;
 213    if( !vg_strgood( &folder ) ) {
 214       vg_error( "Load target too long\n" );
 215       return;
 216    }
 217
 218    char worlds[k_world_max-1][4096];
 219    u32 i=0;
 220
 221    vg_dir dir;
 222    if( !vg_dir_open(&dir, folder.buffer) ){
 223       vg_error( "opendir('%s') failed\n", folder.buffer );
 224       return;
 225    }
 226
 227    while( vg_dir_next_entry(&dir) ){
 228       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 229          const char *d_name = vg_dir_entry_name(&dir);
 230          if( d_name[0] == '.' ) continue;
 231
 232          vg_str file = folder;
 233          vg_strcat( &file, "/" );
 234          vg_strcat( &file, d_name );
 235          if( !vg_strgood( &file ) ) continue;
 236
 237          char *ext = vg_strch( &file, '.' );
 238          if( !ext ) continue;
 239          if( strcmp(ext,".mdl") ) continue;
 240
 241          if( i == k_world_max-1 ){
 242             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 243             break;
 244          }
 245
 246          strcpy( worlds[i++], file.buffer );
 247       }
 248    }
 249    vg_dir_close(&dir);
 250
 251    if( i == 0 ){
 252       vg_warn( "There are no .mdl files in the map folder.\n" );
 253    }
 254
 255    u32 first_index = 0;
 256    for( u32 j=0; j<i; j++ ){
 257       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 258                       sizeof(worlds[j]) };
 259       char *fname = vg_strch( &name, '/' );
 260       if( fname ){
 261          if( !strcmp( fname+1, "main.mdl" ) ){
 262             first_index = j;
 263          }
 264       }
 265    }
 266
 267    world_instance_load_mdl( args.purpose, worlds[first_index] );
 268
 269    vg_async_item *final_call =
 270       vg_async_alloc( sizeof(struct world_load_complete_data) );
 271
 272    struct world_load_complete_data *data = final_call->payload;
 273    data->purpose = args.purpose;
 274
 275    skaterift_world_get_save_path( args.purpose, data->save.path );
 276    savedata_file_read( &data->save );
 277
 278    vg_async_dispatch( final_call, skaterift_world_load_done );
 279    vg_async_stall();
 280 }
 281
 282 /* holding pattern before we can start loading the new world, since we might be
 283  * waiting for audio to stop */
 284 static void skaterift_change_client_world_preupdate(void){
 285    for( u32 i=1; i<k_world_max; i++ ){
 286       world_instance *inst = &world_static.instances[i];
 287
 288       if( inst->status == k_world_status_unloading ){
 289          if( world_freeable( inst ) ){
 290             world_free( inst );
 291          }
 292          return;
 293       }
 294    }
 295
 296    if( vg_loader_availible() ){
 297       vg_info( "worlds cleared, begining load\n" );
 298       world_static.load_state = k_world_loader_load;
 299
 300       vg_linear_clear( vg_async.buffer );
 301       struct world_load_args *args =
 302          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 303       args->purpose = k_world_purpose_client;
 304       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 305
 306       /* this is replaces the already correct reg but we have to set it again
 307        * TOO BAD */
 308
 309       /* finally can start the loader */
 310       vg_loader_start( skaterift_world_load_thread, args );
 311    }
 312 }
 313
 314 /* places all loaded worlds into unloading state */
 315 static void skaterift_change_world_start( addon_reg *reg ){
 316    if( world_static.active_instance != 0 )
 317       vg_error( "Cannot change worlds while in non-root world\n" );
 318    else{
 319       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 320          vg_warn( "World is already loaded\n" );
 321          return;
 322       }
 323
 324       char buf[76];
 325       addon_alias_uid( &reg->alias, buf );
 326       vg_info( "switching to: %s\n", buf );
 327       skaterift_autosave(1);
 328
 329       world_static.load_state = k_world_loader_preload;
 330
 331       vg_linear_clear( vg_mem.scratch ); /* ?? */
 332       vg_info( "unloading old worlds\n" );
 333
 334       world_instance *client_world =
 335          &world_static.instances[ k_world_purpose_client ];
 336
 337       if( client_world->status == k_world_status_loaded ){
 338          client_world->status = k_world_status_unloading;
 339          world_fadeout_audio( client_world );
 340       }
 341
 342       world_static.instance_addons[ k_world_purpose_client ] = reg;
 343       network_send_item( k_netmsg_playeritem_world1 );
 344       relink_all_remote_player_worlds();
 345       world_unlink_nonlocal( &world_static.instances[k_world_purpose_hub] );
 346    }
 347 }
 348
 349 /* console command for the above function */
 350 static int skaterift_load_world_command( int argc, const char *argv[] ){
 351    if( !vg_loader_availible() ) return 0; /* FIXME */
 352
 353    if( argc == 1 ){
 354       addon_alias q;
 355       addon_uid_to_alias( argv[0], &q );
 356
 357       u32 reg_id = addon_match( &q );
 358       if( reg_id != 0xffffffff ){
 359          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id, 0 );
 360          skaterift_change_world_start( reg );
 361       }
 362       else {
 363          vg_error( "Addon '%s' is not installed or not found.\n", argv[0] );
 364       }
 365    }
 366    else {
 367       vg_info( "worlds availible to load:\n" );
 368
 369       for( int i=0; i<addon_count(k_addon_type_world,0); i ++ ){
 370          addon_reg *w = get_addon_from_index( k_addon_type_world, i, 0);
 371
 372          char buf[ADDON_UID_MAX];
 373          addon_alias_uid( &w->alias, buf );
 374
 375          if( w->flags & ADDON_REG_HIDDEN )
 376             vg_info( "  %s [hidden]\n", buf );
 377          else
 378             vg_info( "  %s\n", buf );
 379       }
 380    }
 381
 382    return 0;
 383 }
 384
 385 /*
 386  * checks:
 387  *  1. to see if all audios owned by the world have been stopped
 388  *  2. that this is the least significant world
 389  */
 390 static int world_freeable( world_instance *world ){
 391    if( world->status != k_world_status_unloading ) return 0;
 392    u8 world_id = (world - world_static.instances) + 1;
 393
 394    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 395       if( world_static.instances[i].status != k_world_status_unloaded ){
 396          return 0;
 397       }
 398    }
 399
 400    int freeable = 1;
 401    audio_lock();
 402    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 403       audio_channel *ch = &vg_audio.channels[i];
 404
 405       if( ch->allocated && (ch->world_id == world_id)){
 406          if( !audio_channel_finished( ch ) ){
 407             freeable = 0;
 408             break;
 409          }
 410       }
 411    }
 412    audio_unlock();
 413    return freeable;
 414 }
 415
 416 /*
 417  * Free all resources for world instance
 418  */
 419 static void world_free( world_instance *world ){
 420    vg_info( "Free world @%p\n", world );
 421
 422    /* free meshes */
 423    mesh_free( &world->mesh_route_lines );
 424    mesh_free( &world->mesh_geo );
 425    mesh_free( &world->mesh_no_collide );
 426    mesh_free( &world->mesh_water );
 427
 428    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 429     * existing buffer objects.
 430     * */
 431    glDeleteBuffers( 1, &world->tbo_light_entities );
 432    glDeleteTextures( 1, &world->tex_light_entities );
 433    glDeleteTextures( 1, &world->tex_light_cubes );
 434
 435    /* delete textures and meshes */
 436    glDeleteTextures( world->texture_count-1, world->textures+1 );
 437
 438    u32 world_index = world - world_static.instances;
 439    if( world_index ){
 440       vg_linear_del( world_static.instances[world_index-1].heap,
 441                      vg_linear_header(world->heap) );
 442    }
 443
 444    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 445       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 446       glDeleteTextures( 1, &cm->texture_id );
 447       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 448       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 449    }
 450
 451    world->status = k_world_status_unloaded;
 452 }
 453
 454 /*
 455  * reset the world structure without deallocating persistent buffers
 456  * TODO: Make this a memset(0), and have persistent items live in a static loc
 457  */
 458 static void world_init_blank( world_instance *world ){
 459    memset( &world->meta, 0, sizeof(mdl_context) );
 460
 461    world->textures = NULL;
 462    world->texture_count = 0;
 463    world->surfaces = NULL;
 464    world->surface_count = 0;
 465
 466    world->geo_bh = NULL;
 467    world->entity_bh = NULL;
 468    world->entity_list = NULL;
 469    world->rendering_gate = NULL;
 470
 471    world->water.enabled = 0;
 472    world->time = 0.0;
 473
 474    /* default lighting conditions
 475     * -------------------------------------------------------------*/
 476    struct ub_world_lighting *state = &world->ub_lighting;
 477
 478    state->g_light_preview = 0;
 479    state->g_shadow_samples = 8;
 480    state->g_water_fog = 0.04f;
 481
 482    v4_zero( state->g_water_plane );
 483    v4_zero( state->g_depth_bounds );
 484
 485    state->g_shadow_length = 9.50f;
 486    state->g_shadow_spread = 0.65f;
 487
 488    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 489    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 490    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 491    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 492    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 493    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 494 }
 495
 496 #endif /* WORLD_LOAD_C */