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 #include "vg/vg_loader.h"
  14
  15 /*
  16  * load the .mdl file located in path as a world instance
  17  */
  18 static void world_instance_load_mdl( u32 instance_id, const char *path ){
  19    world_instance *world = &world_static.instances[ instance_id ];
  20    world_init_blank( world );
  21    world->status = k_world_status_loading;
  22
  23    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  24
  25    void *allocator = NULL;
  26    if( instance_id == 0 ) allocator = world_static.heap;
  27    else allocator = world_static.instances[instance_id-1].heap;
  28
  29    u32 heap_availible = vg_linear_remaining( allocator );
  30    u32 min_overhead = sizeof(vg_linear_allocator);
  31
  32    if( heap_availible < (min_overhead+1024) ){
  33       vg_fatal_error( "out of memory" );
  34    }
  35
  36    u32 size = heap_availible - min_overhead;
  37    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  38
  39    world->heap = heap;
  40    mdl_context *meta = &world->meta;
  41
  42    mdl_open( meta, path, world->heap );
  43    mdl_load_metadata_block( meta, world->heap );
  44    mdl_load_animation_block( meta, world->heap );
  45    mdl_load_mesh_block( meta, world->heap );
  46
  47    vg_info( "%u\n", sizeof(ent_cubemap) );
  48
  49    MDL_LOAD_ARRAY( meta, &world->ent_gate,      ent_gate,       heap );
  50    MDL_LOAD_ARRAY( meta, &world->ent_camera,    ent_camera,     heap );
  51    MDL_LOAD_ARRAY( meta, &world->ent_spawn,     ent_spawn,      heap );
  52    MDL_LOAD_ARRAY( meta, &world->ent_light,     ent_light,      heap );
  53    MDL_LOAD_ARRAY( meta, &world->ent_route_node,ent_route_node, heap );
  54    MDL_LOAD_ARRAY( meta, &world->ent_path_index,ent_path_index, heap );
  55    MDL_LOAD_ARRAY( meta, &world->ent_checkpoint,ent_checkpoint, heap );
  56    MDL_LOAD_ARRAY( meta, &world->ent_route,     ent_route,      heap );
  57    MDL_LOAD_ARRAY( meta, &world->ent_water,     ent_water,      heap );
  58    MDL_LOAD_ARRAY( meta, &world->ent_audio_clip,ent_audio_clip, heap );
  59    MDL_LOAD_ARRAY( meta, &world->ent_audio,     ent_audio,      heap );
  60    MDL_LOAD_ARRAY( meta, &world->ent_volume,    ent_volume,     heap );
  61    MDL_LOAD_ARRAY( meta, &world->ent_traffic,   ent_traffic,    heap );
  62    MDL_LOAD_ARRAY( meta, &world->ent_marker,    ent_marker,     heap );
  63    MDL_LOAD_ARRAY( meta, &world->ent_skateshop, ent_skateshop,  heap );
  64    MDL_LOAD_ARRAY( meta, &world->ent_swspreview,ent_swspreview, heap );
  65    MDL_LOAD_ARRAY( meta, &world->ent_ccmd,      ent_ccmd,       heap );
  66    MDL_LOAD_ARRAY( meta, &world->ent_objective, ent_objective,  heap );
  67    MDL_LOAD_ARRAY( meta, &world->ent_challenge, ent_challenge,  heap );
  68    MDL_LOAD_ARRAY( meta, &world->ent_relay,     ent_relay,      heap );
  69    MDL_LOAD_ARRAY( meta, &world->ent_cubemap,   ent_cubemap,    heap );
  70    MDL_LOAD_ARRAY( meta, &world->ent_miniworld, ent_miniworld,  heap );
  71    MDL_LOAD_ARRAY( meta, &world->ent_prop,      ent_prop,       heap );
  72    MDL_LOAD_ARRAY( meta, &world->ent_region,    ent_region,     heap );
  73    MDL_LOAD_ARRAY( meta, &world->ent_glider,    ent_glider,     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    {
  81       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  82
  83       if( world->meta.info.version >= 104 )
  84       {
  85          if( MDL_CONST_PSTREQ( &world->meta, world->info.pstr_skybox,"space"))
  86          {
  87             world->skybox = k_skybox_space;
  88          }
  89       }
  90    }
  91    else
  92    {
  93       world->info.pstr_author = 0;
  94       world->info.pstr_desc = 0;
  95       world->info.pstr_name = 0;
  96       world->info.timezone = 0.0f;
  97       world->info.flags = 0;
  98    }
  99
 100    time_t seconds = time(NULL) % ((u32)vg_maxf(1.0f,k_day_length)*60);
 101    world->time  = ((f64)(seconds)/(k_day_length*60.0));
 102    world->time += (world->info.timezone/24.0);
 103
 104    /* process resources from pack */
 105    u64 t4 = SDL_GetPerformanceCounter();
 106    world_gen_load_surfaces( world );
 107    u64 t5 = SDL_GetPerformanceCounter();
 108    world_gen_routes_ent_init( world );
 109    world_gen_entities_init( world );
 110    u64 t6 = SDL_GetPerformanceCounter();
 111
 112    /* main bulk */
 113    u64 t0 = SDL_GetPerformanceCounter();
 114    world_gen_generate_meshes( world );
 115    u64 t1 = SDL_GetPerformanceCounter();
 116    world_gen_routes_generate( instance_id );
 117    u64 t2 = SDL_GetPerformanceCounter();
 118    world_gen_compute_light_indices( world );
 119    u64 t3 = SDL_GetPerformanceCounter();
 120    mdl_close( meta );
 121
 122    u64 utime_mesh = t1-t0,
 123        utime_route = t2-t1,
 124        utime_indices = t3-t2,
 125        utime_tex = t5-t4,
 126        utime_ent = t6-t5,
 127        ufreq = SDL_GetPerformanceFrequency();
 128
 129    f64 ftime_mesh = ((f64)utime_mesh / (f64)ufreq)*1000.0,
 130        ftime_route = ((f64)utime_route / (f64)ufreq)*1000.0,
 131        ftime_ind = ((f64)utime_route / (f64)ufreq)*1000.0,
 132        ftime_tex = ((f64)utime_tex / (f64)ufreq)*1000.0,
 133        ftime_ent = ((f64)utime_ent / (f64)ufreq)*1000.0;
 134
 135    vg_info( "wtime:mesh %.2fms route %.2fms ind %.2fms tex %.2fms ent %.2fms\n",
 136                ftime_mesh, ftime_route, ftime_ind, ftime_tex, ftime_ent );
 137
 138    /* init player position.
 139     *   - this is overriden by the save state when(if) it loads */
 140    world_default_spawn_pos( world, world->player_co );
 141
 142    /* allocate leaderboard buffers */
 143    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 144    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 145
 146    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ )
 147    {
 148       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 149       board->data = vg_linear_alloc( heap, NETWORK_REQUEST_MAX );
 150       board->status = k_request_status_client_error;
 151       board->cache_time = 0.0;
 152       board->data_len = 0;
 153    }
 154
 155    world->routes_ui = vg_linear_alloc( heap,
 156          sizeof(struct route_ui)*mdl_arrcount(&world->ent_route) );
 157
 158    vg_async_call( async_world_postprocess, world, 0 );
 159    vg_async_stall();
 160 }
 161
 162 struct world_load_complete_data{
 163    savedata_file save;
 164    enum world_purpose purpose;
 165 };
 166
 167 static void skaterift_world_load_done( void *payload, u32 size ){
 168    struct world_load_complete_data *data = payload;
 169    world_instance *world = &world_static.instances[ data->purpose ];
 170
 171    vg_msg sav;
 172    vg_msg_init( &sav, data->save.buf, data->save.len );
 173
 174    if( data->purpose != k_world_purpose_hub ){
 175       vg_msg player_frame = sav;
 176       if( vg_msg_seekframe( &player_frame, "player" ) ){
 177          vg_msg_getkvvecf( &player_frame, "position", k_vg_msg_v3f,
 178                            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 /*
 188  * Does a complete world switch using the remaining free slots
 189  */
 190 void skaterift_world_load_thread( void *_args )
 191 {
 192    struct world_load_args args = *((struct world_load_args *)_args);
 193
 194    addon_reg *reg = args.reg;
 195    world_static.instance_addons[ args.purpose ] = reg;
 196
 197    char uid[ADDON_UID_MAX];
 198    addon_alias_uid( &reg->alias, uid );
 199    vg_info( "LOAD WORLD %s @%d\n", uid, args.purpose );
 200
 201    char path_buf[4096];
 202    vg_str path;
 203    vg_strnull( &path, path_buf, 4096 );
 204
 205    addon_get_content_folder( reg, &path, 1 );
 206
 207    vg_str folder = path;
 208    if( !vg_strgood( &folder ) ) {
 209       vg_error( "Load target too long\n" );
 210       return;
 211    }
 212
 213    char worlds[k_world_max-1][4096];
 214    u32 i=0;
 215
 216    vg_dir dir;
 217    if( !vg_dir_open(&dir, folder.buffer) ){
 218       vg_error( "opendir('%s') failed\n", folder.buffer );
 219       return;
 220    }
 221
 222    while( vg_dir_next_entry(&dir) ){
 223       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 224          const char *d_name = vg_dir_entry_name(&dir);
 225          if( d_name[0] == '.' ) continue;
 226
 227          vg_str file = folder;
 228          vg_strcat( &file, "/" );
 229          vg_strcat( &file, d_name );
 230          if( !vg_strgood( &file ) ) continue;
 231
 232          char *ext = vg_strch( &file, '.' );
 233          if( !ext ) continue;
 234          if( strcmp(ext,".mdl") ) continue;
 235
 236          if( i == k_world_max-1 ){
 237             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 238             break;
 239          }
 240
 241          strcpy( worlds[i++], file.buffer );
 242       }
 243    }
 244    vg_dir_close(&dir);
 245
 246    if( i == 0 ){
 247       vg_warn( "There are no .mdl files in the map folder.\n" );
 248    }
 249
 250    u32 first_index = 0;
 251    for( u32 j=0; j<i; j++ ){
 252       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 253                       sizeof(worlds[j]) };
 254       char *fname = vg_strch( &name, '/' );
 255       if( fname ){
 256          if( !strcmp( fname+1, "main.mdl" ) ){
 257             first_index = j;
 258          }
 259       }
 260    }
 261
 262    world_instance_load_mdl( args.purpose, worlds[first_index] );
 263
 264    vg_async_item *final_call =
 265       vg_async_alloc( sizeof(struct world_load_complete_data) );
 266
 267    struct world_load_complete_data *data = final_call->payload;
 268    data->purpose = args.purpose;
 269
 270    skaterift_world_get_save_path( args.purpose, data->save.path );
 271    savedata_file_read( &data->save );
 272
 273    vg_async_dispatch( final_call, skaterift_world_load_done );
 274    vg_async_stall();
 275 }
 276
 277 /* holding pattern before we can start loading the new world, since we might be
 278  * waiting for audio to stop */
 279 void skaterift_change_client_world_preupdate(void)
 280 {
 281    for( u32 i=1; i<k_world_max; i++ ){
 282       world_instance *inst = &world_static.instances[i];
 283
 284       if( inst->status == k_world_status_unloading ){
 285          if( world_freeable( inst ) ){
 286             world_free( inst );
 287          }
 288          return;
 289       }
 290    }
 291
 292    if( vg_loader_availible() ){
 293       vg_info( "worlds cleared, begining load\n" );
 294       world_static.load_state = k_world_loader_load;
 295
 296       vg_linear_clear( vg_async.buffer );
 297       struct world_load_args *args =
 298          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 299       args->purpose = k_world_purpose_client;
 300       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 301
 302       /* this is replaces the already correct reg but we have to set it again
 303        * TOO BAD */
 304
 305       /* finally can start the loader */
 306       vg_loader_start( skaterift_world_load_thread, args );
 307    }
 308 }
 309
 310 /* places all loaded worlds into unloading state */
 311 void skaterift_change_world_start( addon_reg *reg )
 312 {
 313    if( world_static.active_instance != 0 )
 314       vg_error( "Cannot change worlds while in non-root world\n" );
 315    else{
 316       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 317          vg_warn( "World is already loaded\n" );
 318          return;
 319       }
 320
 321       char buf[76];
 322       addon_alias_uid( &reg->alias, buf );
 323       vg_info( "switching to: %s\n", buf );
 324       skaterift_autosave(1);
 325
 326       world_static.load_state = k_world_loader_preload;
 327
 328       vg_linear_clear( vg_mem.scratch ); /* ?? */
 329       vg_info( "unloading old worlds\n" );
 330
 331       world_instance *client_world =
 332          &world_static.instances[ k_world_purpose_client ];
 333
 334       if( client_world->status == k_world_status_loaded ){
 335          client_world->status = k_world_status_unloading;
 336          world_fadeout_audio( client_world );
 337       }
 338
 339       world_static.instance_addons[ k_world_purpose_client ] = reg;
 340       network_send_item( k_netmsg_playeritem_world1 );
 341       relink_all_remote_player_worlds();
 342       world_unlink_nonlocal( &world_static.instances[k_world_purpose_hub] );
 343    }
 344 }
 345
 346 /* console command for the above function */
 347 int skaterift_load_world_command( int argc, const char *argv[] )
 348 {
 349    if( !vg_loader_availible() )
 350    {
 351       vg_error( "Loading thread is currently unavailible\n" );
 352       return 0;
 353    }
 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 int world_freeable( world_instance *world )
 393 {
 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 void world_free( world_instance *world )
 423 {
 424    vg_info( "Free world @%p\n", world );
 425
 426    /* free meshes */
 427    mesh_free( &world->mesh_route_lines );
 428    mesh_free( &world->mesh_geo );
 429    mesh_free( &world->mesh_no_collide );
 430    mesh_free( &world->mesh_water );
 431
 432    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 433     * existing buffer objects.
 434     * */
 435    glDeleteBuffers( 1, &world->tbo_light_entities );
 436    glDeleteTextures( 1, &world->tex_light_entities );
 437    glDeleteTextures( 1, &world->tex_light_cubes );
 438
 439    /* delete textures and meshes */
 440    glDeleteTextures( world->texture_count-1, world->textures+1 );
 441
 442    u32 world_index = world - world_static.instances;
 443    if( world_index ){
 444       vg_linear_del( world_static.instances[world_index-1].heap,
 445                      vg_linear_header(world->heap) );
 446    }
 447
 448    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 449       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 450       glDeleteTextures( 1, &cm->texture_id );
 451       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 452       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 453    }
 454
 455    world->status = k_world_status_unloaded;
 456 }
 457
 458 /*
 459  * reset the world structure without deallocating persistent buffers
 460  * TODO: Make this a memset(0), and have persistent items live in a static loc
 461  */
 462 static void world_init_blank( world_instance *world ){
 463    memset( &world->meta, 0, sizeof(mdl_context) );
 464
 465    world->textures = NULL;
 466    world->texture_count = 0;
 467    world->surfaces = NULL;
 468    world->surface_count = 0;
 469
 470    world->geo_bh = NULL;
 471    world->entity_bh = NULL;
 472    world->entity_list = NULL;
 473    world->rendering_gate = NULL;
 474
 475    world->water.enabled = 0;
 476    world->time = 0.0;
 477
 478    /* default lighting conditions
 479     * -------------------------------------------------------------*/
 480    struct ub_world_lighting *state = &world->ub_lighting;
 481
 482    state->g_light_preview = 0;
 483    state->g_shadow_samples = 8;
 484    state->g_water_fog = 0.04f;
 485
 486    v4_zero( state->g_water_plane );
 487    v4_zero( state->g_depth_bounds );
 488
 489    state->g_shadow_length = 9.50f;
 490    state->g_shadow_spread = 0.65f;
 491
 492    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 493    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 494    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 495    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 496    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 497    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 498 }
 499
 500 #endif /* WORLD_LOAD_C */