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