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