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