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
  13 /*
  14  * load the .mdl file located in path as a world instance
  15  */
  16 static void world_instance_load_mdl( u32 instance_id, const char *path ){
  17    vg_rand_seed( 9001 );
  18
  19    world_instance *world = &world_static.instances[ instance_id ];
  20    world_init_blank( world );
  21    world->status = k_world_status_loading;
  22
  23    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  24
  25    void *allocator = NULL;
  26    if( instance_id == 0 ) allocator = world_static.heap;
  27    else allocator = world_static.instances[instance_id-1].heap;
  28
  29    u32 heap_availible = vg_linear_remaining( allocator );
  30    u32 min_overhead = sizeof(vg_linear_allocator);
  31
  32    if( heap_availible < (min_overhead+1024) ){
  33       vg_fatal_error( "out of memory" );
  34    }
  35
  36    u32 size = heap_availible - min_overhead;
  37    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  38
  39    world->heap = heap;
  40    mdl_context *meta = &world->meta;
  41
  42    mdl_open( meta, path, world->heap );
  43    mdl_load_metadata_block( meta, world->heap );
  44    mdl_load_animation_block( meta, world->heap );
  45    mdl_load_mesh_block( meta, world->heap );
  46
  47    mdl_load_array( meta, &world->ent_gate,      "ent_gate",       heap );
  48    mdl_load_array( meta, &world->ent_camera,    "ent_camera",     heap );
  49    mdl_load_array( meta, &world->ent_spawn,     "ent_spawn",      heap );
  50    mdl_load_array( meta, &world->ent_light,     "ent_light",      heap );
  51    mdl_load_array( meta, &world->ent_route_node,"ent_route_node", heap );
  52    mdl_load_array( meta, &world->ent_path_index,"ent_path_index", heap );
  53    mdl_load_array( meta, &world->ent_checkpoint,"ent_checkpoint", heap );
  54    mdl_load_array( meta, &world->ent_route,     "ent_route",      heap );
  55    mdl_load_array( meta, &world->ent_water,     "ent_water",      heap );
  56    mdl_load_array( meta, &world->ent_audio_clip,"ent_audio_clip", heap );
  57    mdl_load_array( meta, &world->ent_audio,     "ent_audio",      heap );
  58    mdl_load_array( meta, &world->ent_volume,    "ent_volume",     heap );
  59    mdl_load_array( meta, &world->ent_traffic,   "ent_traffic",    heap );
  60    mdl_load_array( meta, &world->ent_marker,    "ent_marker",     heap );
  61    mdl_load_array( meta, &world->ent_skateshop, "ent_skateshop",  heap );
  62    mdl_load_array( meta, &world->ent_swspreview,"ent_swspreview", heap );
  63    mdl_load_array( meta, &world->ent_ccmd,      "ent_ccmd",       heap );
  64    mdl_load_array( meta, &world->ent_objective, "ent_objective",  heap );
  65    mdl_load_array( meta, &world->ent_challenge, "ent_challenge",  heap );
  66    mdl_load_array( meta, &world->ent_relay,     "ent_relay",      heap );
  67    mdl_load_array( meta, &world->ent_cubemap,   "ent_cubemap",    heap );
  68
  69    mdl_array_ptr infos;
  70    mdl_load_array( meta, &infos, "ent_worldinfo", vg_mem.scratch );
  71
  72    if( mdl_arrcount(&infos) ){
  73       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  74    }
  75    else{
  76       world->info.pstr_author = 0;
  77       world->info.pstr_desc = 0;
  78       world->info.pstr_name = 0;
  79       world->info.timezone = 0.0f;
  80    }
  81
  82    time_t t;
  83    struct tm *tm;
  84    time( &t );
  85    tm = gmtime( &t );
  86    world->time = (float)tm->tm_min/20.0f + (world->info.timezone/24.0f);
  87
  88    /* process resources from pack */
  89    world_gen_load_surfaces( world );
  90    world_gen_routes_ent_init( world );
  91    world_gen_entities_init( world );
  92
  93    /* main bulk */
  94    world_gen_generate_meshes( world );
  95    world_gen_routes_generate( instance_id );
  96    world_gen_compute_light_indices( world );
  97    mdl_close( meta );
  98
  99    vg_async_call( async_world_postprocess, world, 0 );
 100    vg_async_stall();
 101 }
 102
 103 struct world_load_complete_data{
 104    savedata_file save;
 105    u32 instance_start, instance_count;
 106 };
 107
 108 static void skaterift_world_load_done( void *payload, u32 size ){
 109    struct world_load_complete_data *data = payload;
 110
 111    vg_msg sav = {0};
 112    sav.buf = data->save.buf;
 113    sav.len = data->save.len;
 114    sav.max = data->save.len;
 115
 116    for( u32 i=0; i<data->instance_count; i++ ){
 117       world_instance *world = &world_static.instances[ data->instance_start+i ];
 118       world_entity_start( world, &sav );
 119    }
 120
 121    world_static.load_state = k_world_loader_none;
 122 }
 123
 124 struct world_load_args {
 125    enum world_purpose purpose;
 126    addon_reg *reg;
 127 };
 128
 129 /*
 130  * Does a complete world switch using the remaining free slots
 131  */
 132 static void skaterift_world_load_thread( void *_args ){
 133    struct world_load_args *args = _args;
 134    enum world_purpose purpose = args->purpose;
 135    addon_reg *reg = args->reg;
 136
 137    if( purpose == k_world_purpose_hub ) world_static.addon_hub = reg;
 138    else world_static.addon_client = reg;
 139
 140    char path_buf[4096];
 141    vg_str path;
 142    vg_strnull( &path, path_buf, 4096 );
 143
 144    assert( reg );
 145    addon_get_content_folder( reg, &path );
 146
 147    vg_str folder = path;
 148    if( !vg_strgood( &folder ) ) {
 149       vg_error( "Load target too long\n" );
 150       return;
 151    }
 152
 153    char worlds[3][4096];
 154    u32 i=0;
 155
 156    vg_dir dir;
 157    if( !vg_dir_open(&dir, folder.buffer) ){
 158       vg_error( "opendir('%s') failed\n", folder.buffer );
 159       return;
 160    }
 161
 162    while( vg_dir_next_entry(&dir) ){
 163       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 164          const char *d_name = vg_dir_entry_name(&dir);
 165          if( d_name[0] == '.' ) continue;
 166
 167          vg_str file = folder;
 168          vg_strcat( &file, "/" );
 169          vg_strcat( &file, d_name );
 170          if( !vg_strgood( &file ) ) continue;
 171
 172          char *ext = vg_strch( &file, '.' );
 173          if( !ext ) continue;
 174          if( strcmp(ext,".mdl") ) continue;
 175
 176          if( i == 3 ){
 177             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 178             break;
 179          }
 180
 181          strcpy( worlds[i++], file.buffer );
 182       }
 183    }
 184    vg_dir_close(&dir);
 185
 186    if( i == 0 ){
 187       vg_warn( "There are no .mdl files in the map folder.\n" );
 188    }
 189
 190    u32 first_index = 0;
 191    for( u32 j=0; j<i; j++ ){
 192       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 193                       sizeof(worlds[j]) };
 194       char *fname = vg_strch( &name, '/' );
 195       if( fname ){
 196          if( !strcmp( fname+1, "main.mdl" ) ){
 197             first_index = j;
 198          }
 199       }
 200    }
 201
 202    u32 instance_start = 0, instance_count = 1;
 203    if( purpose == k_world_purpose_client ) instance_start = 1;
 204
 205    world_instance_load_mdl( instance_start, worlds[first_index] );
 206
 207    /* TODO: Support multiply packed worlds */
 208 #if 0
 209    world_loader.generate_point_cloud = 0;
 210    for( u32 j=0; j<i; j++ ){
 211       if( j != first_index ){
 212          world_loader.world_index = j+1;
 213          world_load_mdl( worlds[j] );
 214       }
 215    }
 216 #endif
 217
 218    vg_async_item *final_call =
 219       vg_async_alloc( sizeof(struct world_load_complete_data) );
 220
 221    struct world_load_complete_data *data = final_call->payload;
 222    data->instance_start = instance_start;
 223    data->instance_count = instance_count;
 224
 225    skaterift_world_get_save_path( purpose, data->save.path );
 226    savedata_file_read( &data->save );
 227
 228    vg_async_dispatch( final_call, skaterift_world_load_done );
 229    vg_async_stall();
 230 }
 231
 232 /* holding pattern before we can start loading the new world, since we might be
 233  * waiting for audio to stop */
 234 static void skaterift_change_client_world_preupdate(void){
 235    for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 236       world_instance *inst = &world_static.instances[i];
 237
 238       if( inst->status == k_world_status_unloading ){
 239          if( world_freeable( inst ) ){
 240             world_free( inst );
 241          }
 242          return;
 243       }
 244    }
 245
 246    if( vg_loader_availible() ){
 247       vg_info( "worlds cleared, begining load\n" );
 248       world_static.load_state = k_world_loader_load;
 249
 250       vg_linear_clear( vg_async.buffer );
 251       struct world_load_args *args =
 252          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 253       args->purpose = k_world_purpose_client;
 254       args->reg = world_static.addon_client;
 255
 256       /* this is replaces the already correct reg but we have to set it again
 257        * TOO BAD */
 258
 259       /* finally can start the loader */
 260       vg_loader_start( skaterift_world_load_thread, args );
 261    }
 262 }
 263
 264 /* places all loaded worlds into unloading state */
 265 static void skaterift_change_world_start( addon_reg *reg ){
 266    if( world_static.active_instance != 0 )
 267       vg_error( "Cannot change worlds while in non-root world\n" );
 268    else{
 269       if( world_static.addon_client == reg ){
 270          vg_warn( "World is already loaded\n" );
 271          return;
 272       }
 273
 274       char buf[76];
 275       addon_alias_uid( &reg->alias, buf );
 276       vg_info( "switching to: %s\n", buf );
 277       skaterift_autosave(1);
 278
 279       world_static.load_state = k_world_loader_preload;
 280
 281       vg_linear_clear( vg_mem.scratch ); /* ?? */
 282       vg_info( "unloading old worlds\n" );
 283       world_unlink_nonlocal( &world_static.instances[0] );
 284
 285       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 286          world_instance *inst = &world_static.instances[i];
 287
 288          if( inst->status == k_world_status_loaded ){
 289             inst->status = k_world_status_unloading;
 290             world_fadeout_audio( inst );
 291          }
 292       }
 293
 294       world_static.addon_client = reg;
 295       network_send_item( k_netmsg_playeritem_world1 );
 296    }
 297 }
 298
 299 /* console command for the above function */
 300 static int skaterift_change_world_command( int argc, const char *argv[] ){
 301    if( !vg_loader_availible() ) return 0;
 302
 303    if( argc == 1 ){
 304       addon_alias q;
 305       q.type = k_addon_type_world;
 306       q.workshop_id = 0;
 307       vg_strncpy( argv[0], q.foldername, 64, k_strncpy_always_add_null );
 308
 309       u32 reg_id = addon_match( &q );
 310       if( reg_id != 0xffffffff ){
 311          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id );
 312          skaterift_change_world_start( reg );
 313       }
 314       else {
 315          char buf[76];
 316          addon_alias_uid( &q, buf );
 317          vg_error( "Addon '%s' is not installed or not found.\n", buf );
 318       }
 319    }
 320
 321    return 0;
 322 }
 323
 324 /*
 325  * checks:
 326  *  1. to see if all audios owned by the world have been stopped
 327  *  2. that this is the least significant world
 328  */
 329 static int world_freeable( world_instance *world ){
 330    if( world->status != k_world_status_unloading ) return 0;
 331    u8 world_id = (world - world_static.instances) + 1;
 332
 333    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 334       if( world_static.instances[i].status != k_world_status_unloaded ){
 335          return 0;
 336       }
 337    }
 338
 339    int freeable = 1;
 340    audio_lock();
 341    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 342       audio_channel *ch = &vg_audio.channels[i];
 343
 344       if( ch->allocated && (ch->world_id == world_id)){
 345          if( !audio_channel_finished( ch ) ){
 346             freeable = 0;
 347             break;
 348          }
 349       }
 350    }
 351    audio_unlock();
 352    return freeable;
 353 }
 354
 355 /*
 356  * Free all resources for world instance
 357  */
 358 static void world_free( world_instance *world )
 359 {
 360    vg_info( "Free world @%p\n", world );
 361
 362    /* free meshes */
 363    mesh_free( &world->mesh_route_lines );
 364    mesh_free( &world->mesh_geo );
 365    mesh_free( &world->mesh_no_collide );
 366    mesh_free( &world->mesh_water );
 367
 368    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 369     * existing buffer objects.
 370     * */
 371    glDeleteBuffers( 1, &world->tbo_light_entities );
 372    glDeleteTextures( 1, &world->tex_light_entities );
 373    glDeleteTextures( 1, &world->tex_light_cubes );
 374
 375    /* delete textures and meshes */
 376    glDeleteTextures( world->texture_count, world->textures );
 377
 378    u32 world_index = world - world_static.instances;
 379    if( world_index ){
 380       vg_linear_del( world_static.instances[world_index-1].heap,
 381                      vg_linear_header(world->heap) );
 382    }
 383
 384    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 385       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 386       glDeleteTextures( 1, &cm->texture_id );
 387       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 388       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 389    }
 390
 391    world->status = k_world_status_unloaded;
 392 }
 393
 394 /*
 395  * reset the world structure without deallocating persistent buffers
 396  * TODO: Make this a memset(0), and have persistent items live in a static loc
 397  */
 398 static void world_init_blank( world_instance *world )
 399 {
 400    memset( &world->meta, 0, sizeof(mdl_context) );
 401
 402    world->textures = NULL;
 403    world->texture_count = 0;
 404    world->surfaces = NULL;
 405    world->surface_count = 0;
 406
 407    world->geo_bh = NULL;
 408    world->entity_bh = NULL;
 409    world->entity_list = NULL;
 410    world->rendering_gate = NULL;
 411
 412    world->water.enabled = 0;
 413    world->time = 0.0;
 414
 415    /* default lighting conditions
 416     * -------------------------------------------------------------*/
 417    struct ub_world_lighting *state = &world->ub_lighting;
 418
 419    state->g_light_preview = 0;
 420    state->g_shadow_samples = 8;
 421    state->g_water_fog = 0.04f;
 422
 423    v4_zero( state->g_water_plane );
 424    v4_zero( state->g_depth_bounds );
 425
 426    state->g_shadow_length = 9.50f;
 427    state->g_shadow_spread = 0.65f;
 428
 429    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 430    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 431    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 432    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 433    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 434    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 435 }
 436
 437 #endif /* WORLD_LOAD_C */