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
  12 /*
  13  * load the .mdl file located in path as a world instance
  14  */
  15 static void world_instance_load_mdl( u32 instance_id, const char *path ){
  16    vg_rand_seed( 9001 );
  17
  18    world_instance *world = &world_static.instances[ instance_id ];
  19    world_init_blank( world );
  20    world->status = k_world_status_loading;
  21
  22    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  23
  24    void *allocator = NULL;
  25    if( instance_id == 0 ) allocator = world_static.heap;
  26    else allocator = world_static.instances[instance_id-1].heap;
  27
  28    u32 heap_availible = vg_linear_remaining( allocator );
  29    u32 min_overhead = sizeof(vg_linear_allocator);
  30
  31    if( heap_availible < (min_overhead+1024) ){
  32       vg_fatal_error( "out of memory" );
  33    }
  34
  35    u32 size = heap_availible - min_overhead;
  36    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  37
  38    world->heap = heap;
  39    mdl_context *meta = &world->meta;
  40
  41    mdl_open( meta, path, world->heap );
  42    mdl_load_metadata_block( meta, world->heap );
  43    mdl_load_animation_block( meta, world->heap );
  44    mdl_load_mesh_block( meta, world->heap );
  45
  46    mdl_load_array( meta, &world->ent_gate,      "ent_gate",       heap );
  47    mdl_load_array( meta, &world->ent_camera,    "ent_camera",     heap );
  48    mdl_load_array( meta, &world->ent_spawn,     "ent_spawn",      heap );
  49    mdl_load_array( meta, &world->ent_light,     "ent_light",      heap );
  50    mdl_load_array( meta, &world->ent_route_node,"ent_route_node", heap );
  51    mdl_load_array( meta, &world->ent_path_index,"ent_path_index", heap );
  52    mdl_load_array( meta, &world->ent_checkpoint,"ent_checkpoint", heap );
  53    mdl_load_array( meta, &world->ent_route,     "ent_route",      heap );
  54    mdl_load_array( meta, &world->ent_water,     "ent_water",      heap );
  55    mdl_load_array( meta, &world->ent_audio_clip,"ent_audio_clip", heap );
  56    mdl_load_array( meta, &world->ent_audio,     "ent_audio",      heap );
  57    mdl_load_array( meta, &world->ent_volume,    "ent_volume",     heap );
  58    mdl_load_array( meta, &world->ent_traffic,   "ent_traffic",    heap );
  59    mdl_load_array( meta, &world->ent_marker,    "ent_marker",     heap );
  60    mdl_load_array( meta, &world->ent_skateshop, "ent_skateshop",  heap );
  61    mdl_load_array( meta, &world->ent_swspreview,"ent_swspreview", heap );
  62    mdl_load_array( meta, &world->ent_ccmd,      "ent_ccmd",       heap );
  63    mdl_load_array( meta, &world->ent_objective, "ent_objective",  heap );
  64    mdl_load_array( meta, &world->ent_challenge, "ent_challenge",  heap );
  65    mdl_load_array( meta, &world->ent_relay,     "ent_relay",      heap );
  66    mdl_load_array( meta, &world->ent_cubemap,   "ent_cubemap",    heap );
  67
  68    mdl_array_ptr infos;
  69    mdl_load_array( meta, &infos, "ent_worldinfo", vg_mem.scratch );
  70
  71    if( mdl_arrcount(&infos) ){
  72       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  73    }
  74    else{
  75       world->info.pstr_author = 0;
  76       world->info.pstr_desc = 0;
  77       world->info.pstr_name = 0;
  78       world->info.timezone = 0.0f;
  79    }
  80
  81    time_t t;
  82    struct tm *tm;
  83    time( &t );
  84    tm = gmtime( &t );
  85    world->time = (float)tm->tm_min/20.0f + (world->info.timezone/24.0f);
  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    vg_async_call( async_world_postprocess, world, 0 );
  99    vg_async_stall();
 100 }
 101
 102 struct world_load_complete_data{
 103    savedata_file save;
 104    u32 instance_start, instance_count;
 105 };
 106
 107 static void skaterift_world_load_done( void *payload, u32 size ){
 108    struct world_load_complete_data *data = payload;
 109
 110    vg_msg sav = {0};
 111    sav.buf = data->save.buf;
 112    sav.len = data->save.len;
 113    sav.max = 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    enum world_purpose purpose = args->purpose;
 134    addon_reg *reg = args->reg;
 135
 136    if( purpose == k_world_purpose_hub ) world_static.addon_hub = reg;
 137    else world_static.addon_client = reg;
 138
 139    char path_buf[4096];
 140    vg_str path;
 141    vg_strnull( &path, path_buf, 4096 );
 142
 143    assert( reg );
 144    addon_get_content_folder( reg, &path );
 145
 146    vg_str folder = path;
 147    if( !vg_strgood( &folder ) ) {
 148       vg_error( "Load target too long\n" );
 149       return;
 150    }
 151
 152    char worlds[3][4096];
 153    u32 i=0;
 154
 155    vg_dir dir;
 156    if( !vg_dir_open(&dir, folder.buffer) ){
 157       vg_error( "opendir('%s') failed\n", folder.buffer );
 158       return;
 159    }
 160
 161    while( vg_dir_next_entry(&dir) ){
 162       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 163          const char *d_name = vg_dir_entry_name(&dir);
 164          if( d_name[0] == '.' ) continue;
 165
 166          vg_str file = folder;
 167          vg_strcat( &file, "/" );
 168          vg_strcat( &file, d_name );
 169          if( !vg_strgood( &file ) ) continue;
 170
 171          char *ext = vg_strch( &file, '.' );
 172          if( !ext ) continue;
 173          if( strcmp(ext,".mdl") ) continue;
 174
 175          if( i == 3 ){
 176             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 177             break;
 178          }
 179
 180          strcpy( worlds[i++], file.buffer );
 181       }
 182    }
 183    vg_dir_close(&dir);
 184
 185    if( i == 0 ){
 186       vg_warn( "There are no .mdl files in the map folder.\n" );
 187    }
 188
 189    u32 first_index = 0;
 190    for( u32 j=0; j<i; j++ ){
 191       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 192                       sizeof(worlds[j]) };
 193       char *fname = vg_strch( &name, '/' );
 194       if( fname ){
 195          if( !strcmp( fname+1, "main.mdl" ) ){
 196             first_index = j;
 197          }
 198       }
 199    }
 200
 201    u32 instance_start = 0, instance_count = 1;
 202    if( purpose == k_world_purpose_client ) instance_start = 1;
 203
 204    world_instance_load_mdl( instance_start, worlds[first_index] );
 205
 206    /* TODO: Support multiply packed worlds */
 207 #if 0
 208    world_loader.generate_point_cloud = 0;
 209    for( u32 j=0; j<i; j++ ){
 210       if( j != first_index ){
 211          world_loader.world_index = j+1;
 212          world_load_mdl( worlds[j] );
 213       }
 214    }
 215 #endif
 216
 217    vg_async_item *final_call =
 218       vg_async_alloc( sizeof(struct world_load_complete_data) );
 219
 220    struct world_load_complete_data *data = final_call->payload;
 221    data->instance_start = instance_start;
 222    data->instance_count = instance_count;
 223
 224    skaterift_world_get_save_path( purpose, data->save.path );
 225    savedata_file_read( &data->save );
 226
 227    vg_async_dispatch( final_call, skaterift_world_load_done );
 228    vg_async_stall();
 229 }
 230
 231 /* holding pattern before we can start loading the new world, since we might be
 232  * waiting for audio to stop */
 233 static void skaterift_change_client_world_preupdate(void){
 234    for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 235       world_instance *inst = &world_static.instances[i];
 236
 237       if( inst->status == k_world_status_unloading ){
 238          if( world_freeable( inst ) ){
 239             world_free( inst );
 240          }
 241          return;
 242       }
 243    }
 244
 245    if( vg_loader_availible() ){
 246       vg_info( "worlds cleared, begining load\n" );
 247       world_static.load_state = k_world_loader_load;
 248
 249       vg_linear_clear( vg_async.buffer );
 250       struct world_load_args *args =
 251          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 252       args->purpose = k_world_purpose_client;
 253       args->reg = world_static.addon_client;
 254
 255       /* this is replaces the already correct reg but we have to set it again
 256        * TOO BAD */
 257
 258       /* finally can start the loader */
 259       vg_loader_start( skaterift_world_load_thread, args );
 260    }
 261 }
 262
 263 /* places all loaded worlds into unloading state */
 264 static void skaterift_change_world_start( addon_reg *reg ){
 265    if( world_static.active_instance != 0 )
 266       vg_error( "Cannot change worlds while in non-root world\n" );
 267    else{
 268       if( world_static.addon_client == reg ){
 269          vg_warn( "World is already loaded\n" );
 270          return;
 271       }
 272
 273       char buf[76];
 274       addon_alias_uid( &reg->alias, buf );
 275       vg_info( "switching to: %s\n", buf );
 276       skaterift_autosave(1);
 277
 278       world_static.load_state = k_world_loader_preload;
 279
 280       vg_linear_clear( vg_mem.scratch ); /* ?? */
 281       vg_info( "unloading old worlds\n" );
 282       world_unlink_nonlocal( &world_static.instances[0] );
 283
 284       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 285          world_instance *inst = &world_static.instances[i];
 286
 287          if( inst->status == k_world_status_loaded ){
 288             inst->status = k_world_status_unloading;
 289             world_fadeout_audio( inst );
 290          }
 291       }
 292
 293       world_static.addon_client = reg;
 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 {
 358    vg_info( "Free world @%p\n", world );
 359
 360    /* free meshes */
 361    mesh_free( &world->mesh_route_lines );
 362    mesh_free( &world->mesh_geo );
 363    mesh_free( &world->mesh_no_collide );
 364    mesh_free( &world->mesh_water );
 365
 366    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 367     * existing buffer objects.
 368     * */
 369    glDeleteBuffers( 1, &world->tbo_light_entities );
 370    glDeleteTextures( 1, &world->tex_light_entities );
 371    glDeleteTextures( 1, &world->tex_light_cubes );
 372
 373    /* delete textures and meshes */
 374    glDeleteTextures( world->texture_count, world->textures );
 375
 376    u32 world_index = world - world_static.instances;
 377    if( world_index ){
 378       vg_linear_del( world_static.instances[world_index-1].heap,
 379                      vg_linear_header(world->heap) );
 380    }
 381
 382    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 383       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 384       glDeleteTextures( 1, &cm->texture_id );
 385       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 386       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 387    }
 388
 389    world->status = k_world_status_unloaded;
 390 }
 391
 392 /*
 393  * reset the world structure without deallocating persistent buffers
 394  * TODO: Make this a memset(0), and have persistent items live in a static loc
 395  */
 396 static void world_init_blank( world_instance *world )
 397 {
 398    memset( &world->meta, 0, sizeof(mdl_context) );
 399
 400    world->textures = NULL;
 401    world->texture_count = 0;
 402    world->surfaces = NULL;
 403    world->surface_count = 0;
 404
 405    world->geo_bh = NULL;
 406    world->entity_bh = NULL;
 407    world->entity_list = NULL;
 408    world->rendering_gate = NULL;
 409
 410    world->water.enabled = 0;
 411    world->time = 0.0;
 412
 413    /* default lighting conditions
 414     * -------------------------------------------------------------*/
 415    struct ub_world_lighting *state = &world->ub_lighting;
 416
 417    state->g_light_preview = 0;
 418    state->g_shadow_samples = 8;
 419    state->g_water_fog = 0.04f;
 420
 421    v4_zero( state->g_water_plane );
 422    v4_zero( state->g_depth_bounds );
 423
 424    state->g_shadow_length = 9.50f;
 425    state->g_shadow_spread = 0.65f;
 426
 427    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 428    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 429    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 430    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 431    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 432    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 433 }
 434
 435 #endif /* WORLD_LOAD_C */