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