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
  72    mdl_array_ptr infos;
  73    MDL_LOAD_ARRAY( meta, &infos, ent_worldinfo, vg_mem.scratch );
  74
  75    world->skybox = k_skybox_default;
  76    if( mdl_arrcount(&infos) ){
  77       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  78
  79       if( world->meta.info.version >= 104 ){
  80          if( MDL_CONST_PSTREQ( &world->meta, world->info.pstr_skybox,"space")){
  81             world->skybox = k_skybox_space;
  82          }
  83       }
  84    }
  85    else{
  86       world->info.pstr_author = 0;
  87       world->info.pstr_desc = 0;
  88       world->info.pstr_name = 0;
  89       world->info.timezone = 0.0f;
  90    }
  91
  92    time_t seconds = time(NULL) % ((u32)vg_maxf(1.0f,k_day_length)*60);
  93    world->time  = ((f64)(seconds)/(k_day_length*60.0));
  94    world->time += (world->info.timezone/24.0);
  95
  96    /* process resources from pack */
  97    world_gen_load_surfaces( world );
  98    world_gen_routes_ent_init( world );
  99    world_gen_entities_init( world );
 100
 101    /* main bulk */
 102    world_gen_generate_meshes( world );
 103    world_gen_routes_generate( instance_id );
 104    world_gen_compute_light_indices( world );
 105    mdl_close( meta );
 106
 107    /* init player position.
 108     *   - this is overriden by the save state when(if) it loads */
 109    ent_spawn *rp = world_find_spawn_by_name( world, "start" );
 110    if( !rp ) rp = world_find_closest_spawn( world, (v3f){0.0f,0.0f,0.0f} );
 111    if( rp )
 112       v3_copy( rp->transform.co, world->player_co );
 113    else{
 114       /* FIXME: we need to find a safe place to put the player_co using
 115        * raycasts. */
 116       v3_zero( world->player_co );
 117    }
 118
 119    /* allocate leaderboard buffers */
 120    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 121    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 122
 123    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ ){
 124       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 125       board->data = vg_linear_alloc( heap, NETWORK_REQUEST_MAX );
 126       board->status = k_request_status_client_error;
 127       board->cache_time = 0.0;
 128       board->data_len = 0;
 129    }
 130
 131    vg_async_call( async_world_postprocess, world, 0 );
 132    vg_async_stall();
 133 }
 134
 135 struct world_load_complete_data{
 136    savedata_file save;
 137    enum world_purpose purpose;
 138 };
 139
 140 static void skaterift_world_load_done( void *payload, u32 size ){
 141    struct world_load_complete_data *data = payload;
 142    world_instance *world = &world_static.instances[ data->purpose ];
 143
 144    vg_msg sav;
 145    vg_msg_init( &sav, data->save.buf, data->save.len );
 146
 147    if( data->purpose != k_world_purpose_hub ){
 148       vg_msg player_frame = sav;
 149       if( vg_msg_seekframe( &player_frame, "player" ) ){
 150          vg_msg_getkvv3f( &player_frame, "position", world->player_co, NULL );
 151       }
 152    }
 153
 154    world_entity_start( world, &sav );
 155    world->status = k_world_status_loaded;
 156    world_static.load_state = k_world_loader_none;
 157 }
 158
 159 struct world_load_args {
 160    enum world_purpose purpose;
 161    addon_reg *reg;
 162 };
 163
 164 /*
 165  * Does a complete world switch using the remaining free slots
 166  */
 167 static void skaterift_world_load_thread( void *_args ){
 168    struct world_load_args args = *((struct world_load_args *)_args);
 169
 170    addon_reg *reg = args.reg;
 171    world_static.instance_addons[ args.purpose ] = reg;
 172
 173    char uid[ADDON_UID_MAX];
 174    addon_alias_uid( &reg->alias, uid );
 175    vg_info( "LOAD WORLD %s @%d\n", uid, args.purpose );
 176
 177    char path_buf[4096];
 178    vg_str path;
 179    vg_strnull( &path, path_buf, 4096 );
 180
 181    assert( reg );
 182    addon_get_content_folder( reg, &path, 1 );
 183
 184    vg_str folder = path;
 185    if( !vg_strgood( &folder ) ) {
 186       vg_error( "Load target too long\n" );
 187       return;
 188    }
 189
 190    char worlds[k_world_max-1][4096];
 191    u32 i=0;
 192
 193    vg_dir dir;
 194    if( !vg_dir_open(&dir, folder.buffer) ){
 195       vg_error( "opendir('%s') failed\n", folder.buffer );
 196       return;
 197    }
 198
 199    while( vg_dir_next_entry(&dir) ){
 200       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 201          const char *d_name = vg_dir_entry_name(&dir);
 202          if( d_name[0] == '.' ) continue;
 203
 204          vg_str file = folder;
 205          vg_strcat( &file, "/" );
 206          vg_strcat( &file, d_name );
 207          if( !vg_strgood( &file ) ) continue;
 208
 209          char *ext = vg_strch( &file, '.' );
 210          if( !ext ) continue;
 211          if( strcmp(ext,".mdl") ) continue;
 212
 213          if( i == k_world_max-1 ){
 214             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 215             break;
 216          }
 217
 218          strcpy( worlds[i++], file.buffer );
 219       }
 220    }
 221    vg_dir_close(&dir);
 222
 223    if( i == 0 ){
 224       vg_warn( "There are no .mdl files in the map folder.\n" );
 225    }
 226
 227    u32 first_index = 0;
 228    for( u32 j=0; j<i; j++ ){
 229       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 230                       sizeof(worlds[j]) };
 231       char *fname = vg_strch( &name, '/' );
 232       if( fname ){
 233          if( !strcmp( fname+1, "main.mdl" ) ){
 234             first_index = j;
 235          }
 236       }
 237    }
 238
 239    world_instance_load_mdl( args.purpose, worlds[first_index] );
 240
 241    vg_async_item *final_call =
 242       vg_async_alloc( sizeof(struct world_load_complete_data) );
 243
 244    struct world_load_complete_data *data = final_call->payload;
 245    data->purpose = args.purpose;
 246
 247    skaterift_world_get_save_path( args.purpose, data->save.path );
 248    savedata_file_read( &data->save );
 249
 250    vg_async_dispatch( final_call, skaterift_world_load_done );
 251    vg_async_stall();
 252 }
 253
 254 /* holding pattern before we can start loading the new world, since we might be
 255  * waiting for audio to stop */
 256 static void skaterift_change_client_world_preupdate(void){
 257    for( u32 i=1; i<k_world_max; i++ ){
 258       world_instance *inst = &world_static.instances[i];
 259
 260       if( inst->status == k_world_status_unloading ){
 261          if( world_freeable( inst ) ){
 262             world_free( inst );
 263          }
 264          return;
 265       }
 266    }
 267
 268    if( vg_loader_availible() ){
 269       vg_info( "worlds cleared, begining load\n" );
 270       world_static.load_state = k_world_loader_load;
 271
 272       vg_linear_clear( vg_async.buffer );
 273       struct world_load_args *args =
 274          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 275       args->purpose = k_world_purpose_client;
 276       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 277
 278       /* this is replaces the already correct reg but we have to set it again
 279        * TOO BAD */
 280
 281       /* finally can start the loader */
 282       vg_loader_start( skaterift_world_load_thread, args );
 283    }
 284 }
 285
 286 /* places all loaded worlds into unloading state */
 287 static void skaterift_change_world_start( addon_reg *reg ){
 288    if( world_static.active_instance != 0 )
 289       vg_error( "Cannot change worlds while in non-root world\n" );
 290    else{
 291       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 292          vg_warn( "World is already loaded\n" );
 293          return;
 294       }
 295
 296       char buf[76];
 297       addon_alias_uid( &reg->alias, buf );
 298       vg_info( "switching to: %s\n", buf );
 299       skaterift_autosave(1);
 300
 301       world_static.load_state = k_world_loader_preload;
 302
 303       vg_linear_clear( vg_mem.scratch ); /* ?? */
 304       vg_info( "unloading old worlds\n" );
 305
 306       world_instance *client_world =
 307          &world_static.instances[ k_world_purpose_client ];
 308
 309       if( client_world->status == k_world_status_loaded ){
 310          client_world->status = k_world_status_unloading;
 311          world_fadeout_audio( client_world );
 312       }
 313
 314       world_static.instance_addons[ k_world_purpose_client ] = reg;
 315       network_send_item( k_netmsg_playeritem_world1 );
 316       relink_all_remote_player_worlds();
 317       world_unlink_nonlocal( &world_static.instances[k_world_purpose_hub] );
 318    }
 319 }
 320
 321 /* console command for the above function */
 322 static int skaterift_load_world_command( int argc, const char *argv[] ){
 323    if( !vg_loader_availible() ) return 0; /* FIXME */
 324
 325    if( argc == 1 ){
 326       addon_alias q;
 327       addon_uid_to_alias( argv[0], &q );
 328
 329       u32 reg_id = addon_match( &q );
 330       if( reg_id != 0xffffffff ){
 331          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id, 0 );
 332          skaterift_change_world_start( reg );
 333       }
 334       else {
 335          vg_error( "Addon '%s' is not installed or not found.\n", argv[0] );
 336       }
 337    }
 338    else {
 339       vg_info( "worlds availible to load:\n" );
 340
 341       for( int i=0; i<addon_count(k_addon_type_world,0); i ++ ){
 342          addon_reg *w = get_addon_from_index( k_addon_type_world, i, 0);
 343
 344          char buf[ADDON_UID_MAX];
 345          addon_alias_uid( &w->alias, buf );
 346
 347          if( w->flags & ADDON_REG_HIDDEN )
 348             vg_info( "  %s [hidden]\n", buf );
 349          else
 350             vg_info( "  %s\n", buf );
 351       }
 352    }
 353
 354    return 0;
 355 }
 356
 357 /*
 358  * checks:
 359  *  1. to see if all audios owned by the world have been stopped
 360  *  2. that this is the least significant world
 361  */
 362 static int world_freeable( world_instance *world ){
 363    if( world->status != k_world_status_unloading ) return 0;
 364    u8 world_id = (world - world_static.instances) + 1;
 365
 366    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 367       if( world_static.instances[i].status != k_world_status_unloaded ){
 368          return 0;
 369       }
 370    }
 371
 372    int freeable = 1;
 373    audio_lock();
 374    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 375       audio_channel *ch = &vg_audio.channels[i];
 376
 377       if( ch->allocated && (ch->world_id == world_id)){
 378          if( !audio_channel_finished( ch ) ){
 379             freeable = 0;
 380             break;
 381          }
 382       }
 383    }
 384    audio_unlock();
 385    return freeable;
 386 }
 387
 388 /*
 389  * Free all resources for world instance
 390  */
 391 static void world_free( world_instance *world ){
 392    vg_info( "Free world @%p\n", world );
 393
 394    /* free meshes */
 395    mesh_free( &world->mesh_route_lines );
 396    mesh_free( &world->mesh_geo );
 397    mesh_free( &world->mesh_no_collide );
 398    mesh_free( &world->mesh_water );
 399
 400    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 401     * existing buffer objects.
 402     * */
 403    glDeleteBuffers( 1, &world->tbo_light_entities );
 404    glDeleteTextures( 1, &world->tex_light_entities );
 405    glDeleteTextures( 1, &world->tex_light_cubes );
 406
 407    /* delete textures and meshes */
 408    glDeleteTextures( world->texture_count, world->textures );
 409
 410    u32 world_index = world - world_static.instances;
 411    if( world_index ){
 412       vg_linear_del( world_static.instances[world_index-1].heap,
 413                      vg_linear_header(world->heap) );
 414    }
 415
 416    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 417       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 418       glDeleteTextures( 1, &cm->texture_id );
 419       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 420       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 421    }
 422
 423    world->status = k_world_status_unloaded;
 424 }
 425
 426 /*
 427  * reset the world structure without deallocating persistent buffers
 428  * TODO: Make this a memset(0), and have persistent items live in a static loc
 429  */
 430 static void world_init_blank( world_instance *world ){
 431    memset( &world->meta, 0, sizeof(mdl_context) );
 432
 433    world->textures = NULL;
 434    world->texture_count = 0;
 435    world->surfaces = NULL;
 436    world->surface_count = 0;
 437
 438    world->geo_bh = NULL;
 439    world->entity_bh = NULL;
 440    world->entity_list = NULL;
 441    world->rendering_gate = NULL;
 442
 443    world->water.enabled = 0;
 444    world->time = 0.0;
 445
 446    /* default lighting conditions
 447     * -------------------------------------------------------------*/
 448    struct ub_world_lighting *state = &world->ub_lighting;
 449
 450    state->g_light_preview = 0;
 451    state->g_shadow_samples = 8;
 452    state->g_water_fog = 0.04f;
 453
 454    v4_zero( state->g_water_plane );
 455    v4_zero( state->g_depth_bounds );
 456
 457    state->g_shadow_length = 9.50f;
 458    state->g_shadow_spread = 0.65f;
 459
 460    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 461    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 462    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 463    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 464    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 465    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 466 }
 467
 468 #endif /* WORLD_LOAD_C */