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
  70    mdl_array_ptr infos;
  71    mdl_load_array( meta, &infos, "ent_worldinfo", vg_mem.scratch );
  72
  73    if( mdl_arrcount(&infos) ){
  74       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  75    }
  76    else{
  77       world->info.pstr_author = 0;
  78       world->info.pstr_desc = 0;
  79       world->info.pstr_name = 0;
  80       world->info.timezone = 0.0f;
  81    }
  82
  83    time_t seconds = time(NULL) % ((u32)k_day_length*60);
  84    world->time  = ((f64)(seconds)/(k_day_length*60.0));
  85    world->time += (world->info.timezone/24.0);
  86
  87    /* process resources from pack */
  88    world_gen_load_surfaces( world );
  89    world_gen_routes_ent_init( world );
  90    world_gen_entities_init( world );
  91
  92    /* main bulk */
  93    world_gen_generate_meshes( world );
  94    world_gen_routes_generate( instance_id );
  95    world_gen_compute_light_indices( world );
  96    mdl_close( meta );
  97
  98    /* allocate leaderboard buffers */
  99    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 100    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 101
 102    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ ){
 103       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 104       board->data = vg_linear_alloc( heap, NETWORK_LEADERBOARD_MAX_SIZE );
 105       board->status = k_request_status_client_error;
 106       board->cache_time = 0.0;
 107       board->data_len = 0;
 108    }
 109
 110    vg_async_call( async_world_postprocess, world, 0 );
 111    vg_async_stall();
 112 }
 113
 114 struct world_load_complete_data{
 115    savedata_file save;
 116    u32 instance_start, instance_count;
 117 };
 118
 119 static void skaterift_world_load_done( void *payload, u32 size ){
 120    struct world_load_complete_data *data = payload;
 121
 122    vg_msg sav;
 123    vg_msg_init( &sav, data->save.buf, data->save.len );
 124
 125    for( u32 i=0; i<data->instance_count; i++ ){
 126       world_instance *world = &world_static.instances[ data->instance_start+i ];
 127       world_entity_start( world, &sav );
 128    }
 129
 130    world_static.load_state = k_world_loader_none;
 131 }
 132
 133 struct world_load_args {
 134    enum world_purpose purpose;
 135    addon_reg *reg;
 136 };
 137
 138 /*
 139  * Does a complete world switch using the remaining free slots
 140  */
 141 static void skaterift_world_load_thread( void *_args ){
 142    struct world_load_args *args = _args;
 143
 144    addon_reg *reg = args->reg;
 145    world_static.instance_addons[ args->purpose ] = reg;
 146
 147    char path_buf[4096];
 148    vg_str path;
 149    vg_strnull( &path, path_buf, 4096 );
 150
 151    assert( reg );
 152    addon_get_content_folder( reg, &path );
 153
 154    vg_str folder = path;
 155    if( !vg_strgood( &folder ) ) {
 156       vg_error( "Load target too long\n" );
 157       return;
 158    }
 159
 160    char worlds[k_world_max-1][4096];
 161    u32 i=0;
 162
 163    vg_dir dir;
 164    if( !vg_dir_open(&dir, folder.buffer) ){
 165       vg_error( "opendir('%s') failed\n", folder.buffer );
 166       return;
 167    }
 168
 169    while( vg_dir_next_entry(&dir) ){
 170       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 171          const char *d_name = vg_dir_entry_name(&dir);
 172          if( d_name[0] == '.' ) continue;
 173
 174          vg_str file = folder;
 175          vg_strcat( &file, "/" );
 176          vg_strcat( &file, d_name );
 177          if( !vg_strgood( &file ) ) continue;
 178
 179          char *ext = vg_strch( &file, '.' );
 180          if( !ext ) continue;
 181          if( strcmp(ext,".mdl") ) continue;
 182
 183          if( i == k_world_max-1 ){
 184             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 185             break;
 186          }
 187
 188          strcpy( worlds[i++], file.buffer );
 189       }
 190    }
 191    vg_dir_close(&dir);
 192
 193    if( i == 0 ){
 194       vg_warn( "There are no .mdl files in the map folder.\n" );
 195    }
 196
 197    u32 first_index = 0;
 198    for( u32 j=0; j<i; j++ ){
 199       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 200                       sizeof(worlds[j]) };
 201       char *fname = vg_strch( &name, '/' );
 202       if( fname ){
 203          if( !strcmp( fname+1, "main.mdl" ) ){
 204             first_index = j;
 205          }
 206       }
 207    }
 208
 209    u32 instance_start = 0, instance_count = 1;
 210    if( args->purpose == k_world_purpose_client ) instance_start = 1;
 211
 212    world_instance_load_mdl( instance_start, worlds[first_index] );
 213
 214    /* TODO: Support multiply packed worlds */
 215 #if 0
 216    world_loader.generate_point_cloud = 0;
 217    for( u32 j=0; j<i; j++ ){
 218       if( j != first_index ){
 219          world_loader.world_index = j+1;
 220          world_load_mdl( worlds[j] );
 221       }
 222    }
 223 #endif
 224
 225    vg_async_item *final_call =
 226       vg_async_alloc( sizeof(struct world_load_complete_data) );
 227
 228    struct world_load_complete_data *data = final_call->payload;
 229    data->instance_start = instance_start;
 230    data->instance_count = instance_count;
 231
 232    skaterift_world_get_save_path( args->purpose, data->save.path );
 233    savedata_file_read( &data->save );
 234
 235    vg_async_dispatch( final_call, skaterift_world_load_done );
 236    vg_async_stall();
 237 }
 238
 239 /* holding pattern before we can start loading the new world, since we might be
 240  * waiting for audio to stop */
 241 static void skaterift_change_client_world_preupdate(void){
 242    for( u32 i=1; i<k_world_max; i++ ){
 243       world_instance *inst = &world_static.instances[i];
 244
 245       if( inst->status == k_world_status_unloading ){
 246          if( world_freeable( inst ) ){
 247             world_free( inst );
 248          }
 249          return;
 250       }
 251    }
 252
 253    if( vg_loader_availible() ){
 254       vg_info( "worlds cleared, begining load\n" );
 255       world_static.load_state = k_world_loader_load;
 256
 257       vg_linear_clear( vg_async.buffer );
 258       struct world_load_args *args =
 259          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 260       args->purpose = k_world_purpose_client;
 261       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 262
 263       /* this is replaces the already correct reg but we have to set it again
 264        * TOO BAD */
 265
 266       /* finally can start the loader */
 267       vg_loader_start( skaterift_world_load_thread, args );
 268    }
 269 }
 270
 271 /* places all loaded worlds into unloading state */
 272 static void skaterift_change_world_start( addon_reg *reg ){
 273    if( world_static.active_instance != 0 )
 274       vg_error( "Cannot change worlds while in non-root world\n" );
 275    else{
 276       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 277          vg_warn( "World is already loaded\n" );
 278          return;
 279       }
 280
 281       char buf[76];
 282       addon_alias_uid( &reg->alias, buf );
 283       vg_info( "switching to: %s\n", buf );
 284       skaterift_autosave(1);
 285
 286       world_static.load_state = k_world_loader_preload;
 287
 288       vg_linear_clear( vg_mem.scratch ); /* ?? */
 289       vg_info( "unloading old worlds\n" );
 290       world_unlink_nonlocal( &world_static.instances[0] );
 291
 292       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 293          world_instance *inst = &world_static.instances[i];
 294
 295          if( inst->status == k_world_status_loaded ){
 296             inst->status = k_world_status_unloading;
 297             world_fadeout_audio( inst );
 298          }
 299       }
 300
 301       world_static.instance_addons[ k_world_purpose_client ] = reg;
 302       network_send_item( k_netmsg_playeritem_world1 );
 303       relink_all_remote_player_worlds();
 304    }
 305 }
 306
 307 /* console command for the above function */
 308 static int skaterift_change_world_command( int argc, const char *argv[] ){
 309    if( !vg_loader_availible() ) return 0;
 310
 311    if( argc == 1 ){
 312       addon_alias q;
 313       q.type = k_addon_type_world;
 314       q.workshop_id = 0;
 315       vg_strncpy( argv[0], q.foldername, 64, k_strncpy_always_add_null );
 316
 317       u32 reg_id = addon_match( &q );
 318       if( reg_id != 0xffffffff ){
 319          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id );
 320          skaterift_change_world_start( reg );
 321       }
 322       else {
 323          char buf[76];
 324          addon_alias_uid( &q, buf );
 325          vg_error( "Addon '%s' is not installed or not found.\n", buf );
 326       }
 327    }
 328
 329    return 0;
 330 }
 331
 332 /*
 333  * checks:
 334  *  1. to see if all audios owned by the world have been stopped
 335  *  2. that this is the least significant world
 336  */
 337 static int world_freeable( world_instance *world ){
 338    if( world->status != k_world_status_unloading ) return 0;
 339    u8 world_id = (world - world_static.instances) + 1;
 340
 341    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 342       if( world_static.instances[i].status != k_world_status_unloaded ){
 343          return 0;
 344       }
 345    }
 346
 347    int freeable = 1;
 348    audio_lock();
 349    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 350       audio_channel *ch = &vg_audio.channels[i];
 351
 352       if( ch->allocated && (ch->world_id == world_id)){
 353          if( !audio_channel_finished( ch ) ){
 354             freeable = 0;
 355             break;
 356          }
 357       }
 358    }
 359    audio_unlock();
 360    return freeable;
 361 }
 362
 363 /*
 364  * Free all resources for world instance
 365  */
 366 static void world_free( world_instance *world ){
 367    vg_info( "Free world @%p\n", world );
 368
 369    /* free meshes */
 370    mesh_free( &world->mesh_route_lines );
 371    mesh_free( &world->mesh_geo );
 372    mesh_free( &world->mesh_no_collide );
 373    mesh_free( &world->mesh_water );
 374
 375    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 376     * existing buffer objects.
 377     * */
 378    glDeleteBuffers( 1, &world->tbo_light_entities );
 379    glDeleteTextures( 1, &world->tex_light_entities );
 380    glDeleteTextures( 1, &world->tex_light_cubes );
 381
 382    /* delete textures and meshes */
 383    glDeleteTextures( world->texture_count, world->textures );
 384
 385    u32 world_index = world - world_static.instances;
 386    if( world_index ){
 387       vg_linear_del( world_static.instances[world_index-1].heap,
 388                      vg_linear_header(world->heap) );
 389    }
 390
 391    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 392       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 393       glDeleteTextures( 1, &cm->texture_id );
 394       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 395       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 396    }
 397
 398    world->status = k_world_status_unloaded;
 399 }
 400
 401 /*
 402  * reset the world structure without deallocating persistent buffers
 403  * TODO: Make this a memset(0), and have persistent items live in a static loc
 404  */
 405 static void world_init_blank( world_instance *world ){
 406    memset( &world->meta, 0, sizeof(mdl_context) );
 407
 408    world->textures = NULL;
 409    world->texture_count = 0;
 410    world->surfaces = NULL;
 411    world->surface_count = 0;
 412
 413    world->geo_bh = NULL;
 414    world->entity_bh = NULL;
 415    world->entity_list = NULL;
 416    world->rendering_gate = NULL;
 417
 418    world->water.enabled = 0;
 419    world->time = 0.0;
 420
 421    /* default lighting conditions
 422     * -------------------------------------------------------------*/
 423    struct ub_world_lighting *state = &world->ub_lighting;
 424
 425    state->g_light_preview = 0;
 426    state->g_shadow_samples = 8;
 427    state->g_water_fog = 0.04f;
 428
 429    v4_zero( state->g_water_plane );
 430    v4_zero( state->g_depth_bounds );
 431
 432    state->g_shadow_length = 9.50f;
 433    state->g_shadow_spread = 0.65f;
 434
 435    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 436    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 437    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 438    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 439    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 440    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 441 }
 442
 443 #endif /* WORLD_LOAD_C */