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 t;
  84    struct tm *tm;
  85    time( &t );
  86    tm = gmtime( &t );
  87    world->time = (float)tm->tm_min/20.0f + (world->info.timezone/24.0f);
  88
  89    /* process resources from pack */
  90    world_gen_load_surfaces( world );
  91    world_gen_routes_ent_init( world );
  92    world_gen_entities_init( world );
  93
  94    /* main bulk */
  95    world_gen_generate_meshes( world );
  96    world_gen_routes_generate( instance_id );
  97    world_gen_compute_light_indices( world );
  98    mdl_close( meta );
  99
 100    vg_async_call( async_world_postprocess, world, 0 );
 101    vg_async_stall();
 102 }
 103
 104 struct world_load_complete_data{
 105    savedata_file save;
 106    u32 instance_start, instance_count;
 107 };
 108
 109 static void skaterift_world_load_done( void *payload, u32 size ){
 110    struct world_load_complete_data *data = payload;
 111
 112    vg_msg sav;
 113    vg_msg_init( &sav, data->save.buf, data->save.len );
 114
 115    for( u32 i=0; i<data->instance_count; i++ ){
 116       world_instance *world = &world_static.instances[ data->instance_start+i ];
 117       world_entity_start( world, &sav );
 118    }
 119
 120    world_static.load_state = k_world_loader_none;
 121 }
 122
 123 struct world_load_args {
 124    enum world_purpose purpose;
 125    addon_reg *reg;
 126 };
 127
 128 /*
 129  * Does a complete world switch using the remaining free slots
 130  */
 131 static void skaterift_world_load_thread( void *_args ){
 132    struct world_load_args *args = _args;
 133
 134    addon_reg *reg = args->reg;
 135    world_static.instance_addons[ args->purpose ] = reg;
 136
 137    char path_buf[4096];
 138    vg_str path;
 139    vg_strnull( &path, path_buf, 4096 );
 140
 141    assert( reg );
 142    addon_get_content_folder( reg, &path );
 143
 144    vg_str folder = path;
 145    if( !vg_strgood( &folder ) ) {
 146       vg_error( "Load target too long\n" );
 147       return;
 148    }
 149
 150    char worlds[k_world_max-1][4096];
 151    u32 i=0;
 152
 153    vg_dir dir;
 154    if( !vg_dir_open(&dir, folder.buffer) ){
 155       vg_error( "opendir('%s') failed\n", folder.buffer );
 156       return;
 157    }
 158
 159    while( vg_dir_next_entry(&dir) ){
 160       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 161          const char *d_name = vg_dir_entry_name(&dir);
 162          if( d_name[0] == '.' ) continue;
 163
 164          vg_str file = folder;
 165          vg_strcat( &file, "/" );
 166          vg_strcat( &file, d_name );
 167          if( !vg_strgood( &file ) ) continue;
 168
 169          char *ext = vg_strch( &file, '.' );
 170          if( !ext ) continue;
 171          if( strcmp(ext,".mdl") ) continue;
 172
 173          if( i == k_world_max-1 ){
 174             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 175             break;
 176          }
 177
 178          strcpy( worlds[i++], file.buffer );
 179       }
 180    }
 181    vg_dir_close(&dir);
 182
 183    if( i == 0 ){
 184       vg_warn( "There are no .mdl files in the map folder.\n" );
 185    }
 186
 187    u32 first_index = 0;
 188    for( u32 j=0; j<i; j++ ){
 189       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 190                       sizeof(worlds[j]) };
 191       char *fname = vg_strch( &name, '/' );
 192       if( fname ){
 193          if( !strcmp( fname+1, "main.mdl" ) ){
 194             first_index = j;
 195          }
 196       }
 197    }
 198
 199    u32 instance_start = 0, instance_count = 1;
 200    if( args->purpose == k_world_purpose_client ) instance_start = 1;
 201
 202    world_instance_load_mdl( instance_start, worlds[first_index] );
 203
 204    /* TODO: Support multiply packed worlds */
 205 #if 0
 206    world_loader.generate_point_cloud = 0;
 207    for( u32 j=0; j<i; j++ ){
 208       if( j != first_index ){
 209          world_loader.world_index = j+1;
 210          world_load_mdl( worlds[j] );
 211       }
 212    }
 213 #endif
 214
 215    vg_async_item *final_call =
 216       vg_async_alloc( sizeof(struct world_load_complete_data) );
 217
 218    struct world_load_complete_data *data = final_call->payload;
 219    data->instance_start = instance_start;
 220    data->instance_count = instance_count;
 221
 222    skaterift_world_get_save_path( args->purpose, data->save.path );
 223    savedata_file_read( &data->save );
 224
 225    vg_async_dispatch( final_call, skaterift_world_load_done );
 226    vg_async_stall();
 227 }
 228
 229 /* holding pattern before we can start loading the new world, since we might be
 230  * waiting for audio to stop */
 231 static void skaterift_change_client_world_preupdate(void){
 232    for( u32 i=1; i<k_world_max; i++ ){
 233       world_instance *inst = &world_static.instances[i];
 234
 235       if( inst->status == k_world_status_unloading ){
 236          if( world_freeable( inst ) ){
 237             world_free( inst );
 238          }
 239          return;
 240       }
 241    }
 242
 243    if( vg_loader_availible() ){
 244       vg_info( "worlds cleared, begining load\n" );
 245       world_static.load_state = k_world_loader_load;
 246
 247       vg_linear_clear( vg_async.buffer );
 248       struct world_load_args *args =
 249          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 250       args->purpose = k_world_purpose_client;
 251       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 252
 253       /* this is replaces the already correct reg but we have to set it again
 254        * TOO BAD */
 255
 256       /* finally can start the loader */
 257       vg_loader_start( skaterift_world_load_thread, args );
 258    }
 259 }
 260
 261 /* places all loaded worlds into unloading state */
 262 static void skaterift_change_world_start( addon_reg *reg ){
 263    if( world_static.active_instance != 0 )
 264       vg_error( "Cannot change worlds while in non-root world\n" );
 265    else{
 266       if( world_static.instance_addons[ k_world_purpose_client ] == reg ){
 267          vg_warn( "World is already loaded\n" );
 268          return;
 269       }
 270
 271       char buf[76];
 272       addon_alias_uid( &reg->alias, buf );
 273       vg_info( "switching to: %s\n", buf );
 274       skaterift_autosave(1);
 275
 276       world_static.load_state = k_world_loader_preload;
 277
 278       vg_linear_clear( vg_mem.scratch ); /* ?? */
 279       vg_info( "unloading old worlds\n" );
 280       world_unlink_nonlocal( &world_static.instances[0] );
 281
 282       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 283          world_instance *inst = &world_static.instances[i];
 284
 285          if( inst->status == k_world_status_loaded ){
 286             inst->status = k_world_status_unloading;
 287             world_fadeout_audio( inst );
 288          }
 289       }
 290
 291       world_static.instance_addons[ k_world_purpose_client ] = reg;
 292       network_send_item( k_netmsg_playeritem_world1 );
 293       relink_all_remote_player_worlds();
 294    }
 295 }
 296
 297 /* console command for the above function */
 298 static int skaterift_change_world_command( int argc, const char *argv[] ){
 299    if( !vg_loader_availible() ) return 0;
 300
 301    if( argc == 1 ){
 302       addon_alias q;
 303       q.type = k_addon_type_world;
 304       q.workshop_id = 0;
 305       vg_strncpy( argv[0], q.foldername, 64, k_strncpy_always_add_null );
 306
 307       u32 reg_id = addon_match( &q );
 308       if( reg_id != 0xffffffff ){
 309          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id );
 310          skaterift_change_world_start( reg );
 311       }
 312       else {
 313          char buf[76];
 314          addon_alias_uid( &q, buf );
 315          vg_error( "Addon '%s' is not installed or not found.\n", buf );
 316       }
 317    }
 318
 319    return 0;
 320 }
 321
 322 /*
 323  * checks:
 324  *  1. to see if all audios owned by the world have been stopped
 325  *  2. that this is the least significant world
 326  */
 327 static int world_freeable( world_instance *world ){
 328    if( world->status != k_world_status_unloading ) return 0;
 329    u8 world_id = (world - world_static.instances) + 1;
 330
 331    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 332       if( world_static.instances[i].status != k_world_status_unloaded ){
 333          return 0;
 334       }
 335    }
 336
 337    int freeable = 1;
 338    audio_lock();
 339    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 340       audio_channel *ch = &vg_audio.channels[i];
 341
 342       if( ch->allocated && (ch->world_id == world_id)){
 343          if( !audio_channel_finished( ch ) ){
 344             freeable = 0;
 345             break;
 346          }
 347       }
 348    }
 349    audio_unlock();
 350    return freeable;
 351 }
 352
 353 /*
 354  * Free all resources for world instance
 355  */
 356 static void world_free( world_instance *world ){
 357    vg_info( "Free world @%p\n", world );
 358
 359    /* free meshes */
 360    mesh_free( &world->mesh_route_lines );
 361    mesh_free( &world->mesh_geo );
 362    mesh_free( &world->mesh_no_collide );
 363    mesh_free( &world->mesh_water );
 364
 365    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 366     * existing buffer objects.
 367     * */
 368    glDeleteBuffers( 1, &world->tbo_light_entities );
 369    glDeleteTextures( 1, &world->tex_light_entities );
 370    glDeleteTextures( 1, &world->tex_light_cubes );
 371
 372    /* delete textures and meshes */
 373    glDeleteTextures( world->texture_count, world->textures );
 374
 375    u32 world_index = world - world_static.instances;
 376    if( world_index ){
 377       vg_linear_del( world_static.instances[world_index-1].heap,
 378                      vg_linear_header(world->heap) );
 379    }
 380
 381    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 382       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 383       glDeleteTextures( 1, &cm->texture_id );
 384       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 385       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 386    }
 387
 388    world->status = k_world_status_unloaded;
 389 }
 390
 391 /*
 392  * reset the world structure without deallocating persistent buffers
 393  * TODO: Make this a memset(0), and have persistent items live in a static loc
 394  */
 395 static void world_init_blank( world_instance *world ){
 396    memset( &world->meta, 0, sizeof(mdl_context) );
 397
 398    world->textures = NULL;
 399    world->texture_count = 0;
 400    world->surfaces = NULL;
 401    world->surface_count = 0;
 402
 403    world->geo_bh = NULL;
 404    world->entity_bh = NULL;
 405    world->entity_list = NULL;
 406    world->rendering_gate = NULL;
 407
 408    world->water.enabled = 0;
 409    world->time = 0.0;
 410
 411    /* default lighting conditions
 412     * -------------------------------------------------------------*/
 413    struct ub_world_lighting *state = &world->ub_lighting;
 414
 415    state->g_light_preview = 0;
 416    state->g_shadow_samples = 8;
 417    state->g_water_fog = 0.04f;
 418
 419    v4_zero( state->g_water_plane );
 420    v4_zero( state->g_depth_bounds );
 421
 422    state->g_shadow_length = 9.50f;
 423    state->g_shadow_spread = 0.65f;
 424
 425    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 426    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 427    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 428    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 429    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 430    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 431 }
 432
 433 #endif /* WORLD_LOAD_C */