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
  11 /*
  12  * load the .mdl file located in path as a world instance
  13  */
  14 VG_STATIC void world_instance_load_mdl( u32 instance_id, const char *path ){
  15    vg_rand_seed( 9001 );
  16
  17    world_instance *world = &world_static.instances[ instance_id ];
  18    world_init_blank( world );
  19    world->status = k_world_status_loading;
  20
  21    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  22
  23    void *allocator = NULL;
  24    if( instance_id == 0 ) allocator = world_static.heap;
  25    else allocator = world_static.instances[instance_id-1].heap;
  26
  27    u32 heap_availible = vg_linear_remaining( allocator );
  28    u32 min_overhead = sizeof(vg_linear_allocator);
  29
  30    if( heap_availible < (min_overhead+1024) ){
  31       vg_fatal_error( "out of memory" );
  32    }
  33
  34    u32 size = heap_availible - min_overhead;
  35    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  36
  37    world->heap = heap;
  38    mdl_context *meta = &world->meta;
  39
  40    mdl_open( meta, path, world->heap );
  41    mdl_load_metadata_block( meta, world->heap );
  42    mdl_load_animation_block( meta, world->heap );
  43    mdl_load_mesh_block( meta, world->heap );
  44
  45    mdl_load_array( meta, &world->ent_gate,      "ent_gate",       heap );
  46    mdl_load_array( meta, &world->ent_camera,    "ent_camera",     heap );
  47    mdl_load_array( meta, &world->ent_spawn,     "ent_spawn",      heap );
  48    mdl_load_array( meta, &world->ent_light,     "ent_light",      heap );
  49    mdl_load_array( meta, &world->ent_route_node,"ent_route_node", heap );
  50    mdl_load_array( meta, &world->ent_path_index,"ent_path_index", heap );
  51    mdl_load_array( meta, &world->ent_checkpoint,"ent_checkpoint", heap );
  52    mdl_load_array( meta, &world->ent_route,     "ent_route",      heap );
  53    mdl_load_array( meta, &world->ent_water,     "ent_water",      heap );
  54    mdl_load_array( meta, &world->ent_audio_clip,"ent_audio_clip", heap );
  55    mdl_load_array( meta, &world->ent_audio,     "ent_audio",      heap );
  56    mdl_load_array( meta, &world->ent_volume,    "ent_volume",     heap );
  57    mdl_load_array( meta, &world->ent_traffic,   "ent_traffic",    heap );
  58    mdl_load_array( meta, &world->ent_marker,    "ent_marker",     heap );
  59    mdl_load_array( meta, &world->ent_skateshop, "ent_skateshop",  heap );
  60    mdl_load_array( meta, &world->ent_swspreview,"ent_swspreview", heap );
  61    mdl_load_array( meta, &world->ent_ccmd,      "ent_ccmd",       heap );
  62    mdl_load_array( meta, &world->ent_challenge, "ent_challenge",  heap );
  63    mdl_load_array( meta, &world->ent_unlock,    "ent_unlock",     heap );
  64    mdl_load_array( meta, &world->ent_relay,     "ent_relay",      heap );
  65
  66    mdl_array_ptr infos;
  67    mdl_load_array( meta, &infos, "ent_worldinfo", vg_mem.scratch );
  68
  69    if( mdl_arrcount(&infos) ){
  70       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  71    }
  72    else{
  73       world->info.pstr_author = 0;
  74       world->info.pstr_desc = 0;
  75       world->info.pstr_name = 0;
  76       world->info.timezone = 0.0f;
  77    }
  78
  79    time_t t;
  80    struct tm *tm;
  81    time( &t );
  82    tm = gmtime( &t );
  83    world->time = (float)tm->tm_min/20.0f + (world->info.timezone/24.0f);
  84
  85    /* process resources from pack */
  86    world_gen_load_surfaces( world );
  87    world_gen_routes_ent_init( world );
  88    world_gen_entities_init( world );
  89
  90    /* main bulk */
  91    world_gen_generate_meshes( world );
  92    world_gen_routes_generate( instance_id );
  93    world_gen_compute_light_indices( world );
  94    mdl_close( meta );
  95
  96    vg_async_call( async_world_postprocess, world, 0 );
  97    vg_async_stall();
  98 }
  99
 100
 101 struct world_load_complete_data{
 102    struct savedata save;
 103    u32 instance_start, instance_count;
 104 };
 105
 106 static void skaterift_world_load_done( void *payload, u32 size ){
 107    struct world_load_complete_data *data = payload;
 108
 109    for( u32 i=0; i<data->instance_count; i++ ){
 110       world_instance *world = &world_static.instances[ data->instance_start+i ];
 111       world_entity_start( world, &data->save );
 112    }
 113
 114    world_static.load_state = k_world_loader_none;
 115 }
 116
 117 struct world_load_args {
 118    enum world_purpose{
 119       k_world_purpose_hub,
 120       k_world_purpose_client
 121    }
 122    purpose;
 123    addon_reg *reg;
 124 };
 125
 126 /*
 127  * Does a complete world switch using the remaining free slots
 128  */
 129 static void skaterift_world_load_thread( void *_args ){
 130    struct world_load_args *args = _args;
 131    enum world_purpose purpose = args->purpose;
 132    addon_reg *reg = args->reg;
 133
 134    if( purpose == k_world_purpose_hub ) world_static.addon_hub = reg;
 135    else world_static.addon_client = 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[3][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 == 3 ){
 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( 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    strcpy( data->save.path, "temp_fuckyou.bkv" );
 222
 223    savedata_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<vg_list_size(world_static.instances); 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.addon_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       char buf[76];
 267       addon_alias_uid( &reg->alias, buf );
 268       vg_info( "switching to: %s\n", buf );
 269
 270       world_static.load_state = k_world_loader_preload;
 271
 272       vg_linear_clear( vg_mem.scratch ); /* ?? */
 273       vg_info( "unloading old worlds\n" );
 274       world_unlink_nonlocal( &world_static.instances[0] );
 275
 276       for( u32 i=1; i<vg_list_size(world_static.instances); i++ ){
 277          world_instance *inst = &world_static.instances[i];
 278
 279          if( inst->status == k_world_status_loaded ){
 280             inst->status = k_world_status_unloading;
 281             world_fadeout_audio( inst );
 282
 283             /* TODO: THIS IS WHERE A SAVE SHOULD BE DONE */
 284          }
 285       }
 286
 287       world_static.addon_client = reg;
 288    }
 289 }
 290
 291 /* console command for the above function */
 292 static int skaterift_change_world_command( int argc, const char *argv[] ){
 293    if( argc == 1 ){
 294       addon_alias q;
 295       q.type = k_addon_type_world;
 296       q.workshop_id = 0;
 297       vg_strncpy( argv[0], q.foldername, 64, k_strncpy_always_add_null );
 298
 299       u32 reg_id = addon_match( &q );
 300       if( reg_id != 0xffffffff ){
 301          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id );
 302          skaterift_change_world_start( reg );
 303       }
 304       else {
 305          char buf[76];
 306          addon_alias_uid( &q, buf );
 307          vg_error( "Addon '%s' is not installed or not found.\n", buf );
 308       }
 309    }
 310
 311    return 0;
 312 }
 313
 314 #if 0
 315 static world_instance *world_loading_instance(void){
 316    return &world_static.instances[ world_loader.world_index ];
 317 }
 318 #endif
 319
 320 /*
 321  * checks:
 322  *  1. to see if all audios owned by the world have been stopped
 323  *  2. that this is the least significant world
 324  */
 325 static int world_freeable( world_instance *world ){
 326    if( world->status != k_world_status_unloading ) return 0;
 327    u8 world_id = (world - world_static.instances) + 1;
 328
 329    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 330       if( world_static.instances[i].status != k_world_status_unloaded ){
 331          return 0;
 332       }
 333    }
 334
 335    int freeable = 1;
 336    audio_lock();
 337    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 338       audio_channel *ch = &vg_audio.channels[i];
 339
 340       if( ch->allocated && (ch->world_id == world_id)){
 341          if( !audio_channel_finished( ch ) ){
 342             freeable = 0;
 343             break;
 344          }
 345       }
 346    }
 347    audio_unlock();
 348    return freeable;
 349 }
 350
 351 /*
 352  * Free all resources for world instance
 353  */
 354 static void world_free( world_instance *world )
 355 {
 356    vg_info( "Free world @%p\n", world );
 357
 358    /* free meshes */
 359    mesh_free( &world->mesh_route_lines );
 360    mesh_free( &world->mesh_geo );
 361    mesh_free( &world->mesh_no_collide );
 362    mesh_free( &world->mesh_water );
 363
 364    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 365     * existing buffer objects.
 366     * */
 367    glDeleteBuffers( 1, &world->tbo_light_entities );
 368    glDeleteTextures( 1, &world->tex_light_entities );
 369    glDeleteTextures( 1, &world->tex_light_cubes );
 370
 371    /* delete textures and meshes */
 372    glDeleteTextures( world->texture_count, world->textures );
 373
 374    u32 world_index = world - world_static.instances;
 375    if( world_index ){
 376       vg_linear_del( world_static.instances[world_index-1].heap,
 377                      vg_linear_header(world->heap) );
 378    }
 379
 380    world->status = k_world_status_unloaded;
 381 }
 382
 383 /*
 384  * reset the world structure without deallocating persistent buffers
 385  * TODO: Make this a memset(0), and have persistent items live in a static loc
 386  */
 387 VG_STATIC void world_init_blank( world_instance *world )
 388 {
 389    memset( &world->meta, 0, sizeof(mdl_context) );
 390
 391    world->textures = NULL;
 392    world->texture_count = 0;
 393    world->surfaces = NULL;
 394    world->surface_count = 0;
 395
 396    world->geo_bh = NULL;
 397    world->entity_bh = NULL;
 398    world->entity_list = NULL;
 399    world->rendering_gate = NULL;
 400
 401    world->water.enabled = 0;
 402    world->time = 0.0;
 403
 404    /* default lighting conditions
 405     * -------------------------------------------------------------*/
 406    struct ub_world_lighting *state = &world->ub_lighting;
 407
 408    state->g_light_preview = 0;
 409    state->g_shadow_samples = 8;
 410    state->g_water_fog = 0.04f;
 411
 412    v4_zero( state->g_water_plane );
 413    v4_zero( state->g_depth_bounds );
 414
 415    state->g_shadow_length = 9.50f;
 416    state->g_shadow_spread = 0.65f;
 417
 418    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 419    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 420    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 421    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 422    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 423    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 424 }
 425
 426 #endif /* WORLD_LOAD_C */