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