world_entity.c

   1 #ifndef WORLD_ENTITY_C
   2 #define WORLD_ENTITY_C
   3
   4 #include "model.h"
   5 #include "entity.h"
   6 #include "world.h"
   7 #include "world_load.h"
   8 #include "save.h"
   9 #include "vg/vg_msg.h"
  10 #include "menu.h"
  11 #include "ent_challenge.h"
  12 #include "ent_skateshop.h"
  13 #include "ent_route.h"
  14
  15 static void world_entity_focus( u32 entity_id ){
  16    localplayer.immobile = 1;
  17    menu.disable_open = 1;
  18
  19    v3_zero( localplayer.rb.v );
  20    v3_zero( localplayer.rb.w );
  21    player_walk.move_speed = 0.0f;
  22    world_static.focused_entity = entity_id;
  23    skaterift.activity = k_skaterift_ent_focus;
  24 }
  25
  26 static void world_entity_unfocus(void){
  27    localplayer.immobile = 0;
  28    skaterift.activity = k_skaterift_default;
  29    menu.disable_open = 0;
  30    srinput.state = k_input_state_resume;
  31 }
  32
  33 static void world_entity_focus_camera( world_instance *world, u32 uid ){
  34    if( mdl_entity_id_type( uid ) == k_ent_camera ){
  35       u32 index = mdl_entity_id_id( uid );
  36       ent_camera *cam = mdl_arritm( &world->ent_camera, index );
  37
  38       v3f dir = {0.0f,-1.0f,0.0f};
  39       mdl_transform_vector( &cam->transform, dir, dir );
  40       v3_angles( dir, world_static.focus_cam.angles );
  41       v3_copy( cam->transform.co, world_static.focus_cam.pos );
  42       world_static.focus_cam.fov = cam->fov;
  43    }
  44    else {
  45       camera_copy( &localplayer.cam, &world_static.focus_cam );
  46
  47       /* TODO ? */
  48       world_static.focus_cam.nearz = localplayer.cam.nearz;
  49       world_static.focus_cam.farz = localplayer.cam.farz;
  50    }
  51 }
  52
  53 /* logic preupdate */
  54 static void world_entity_focus_preupdate(void){
  55    f32 rate = vg_minf( 1.0f, vg.time_frame_delta * 2.0f );
  56    int active = 0;
  57    if( skaterift.activity == k_skaterift_ent_focus )
  58       active = 1;
  59
  60    vg_slewf( &world_static.focus_strength, active,
  61              vg.time_frame_delta * (1.0f/0.5f) );
  62
  63    u32 type = mdl_entity_id_type( world_static.focused_entity ),
  64        index = mdl_entity_id_id( world_static.focused_entity );
  65    world_instance *world = world_current_instance();
  66
  67    /* TODO: Table. */
  68    if( type == k_ent_skateshop ){
  69       ent_skateshop *skateshop = mdl_arritm( &world->ent_skateshop, index );
  70       ent_skateshop_preupdate( skateshop, active );
  71    }
  72    else if( type == k_ent_challenge ){
  73       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
  74       ent_challenge_preupdate( challenge, active );
  75    }
  76    else if( type == k_ent_route ){
  77       ent_route *route = mdl_arritm( &world->ent_route, index );
  78       ent_route_preupdate( route, active );
  79    }
  80 }
  81
  82 /* additional renderings like text etc.. */
  83 static void world_entity_focus_render(void){
  84    if( skaterift.activity != k_skaterift_ent_focus )
  85       return;
  86
  87    u32 type = mdl_entity_id_type( world_static.focused_entity ),
  88        index = mdl_entity_id_id( world_static.focused_entity );
  89    world_instance *world = world_current_instance();
  90
  91    if( type == k_ent_skateshop ){
  92       ent_skateshop *skateshop = mdl_arritm( &world->ent_skateshop, index );
  93       skateshop_render( skateshop );
  94    }
  95    else if( type == k_ent_challenge ){}
  96    else if( type == k_ent_route ){}
  97    else if( type == k_ent_miniworld ){}
  98    else {
  99       vg_fatal_error( "Programming error\n" );
 100    }
 101 }
 102
 103 static void world_gen_entities_init( world_instance *world ){
 104    /* lights */
 105    for( u32 j=0; j<mdl_arrcount(&world->ent_light); j ++ ){
 106       ent_light *light = mdl_arritm( &world->ent_light, j );
 107
 108       m4x3f to_world;
 109       q_m3x3( light->transform.q, to_world );
 110       v3_copy( light->transform.co, to_world[3] );
 111       m4x3_invert_affine( to_world, light->inverse_world );
 112
 113       light->angle_sin_cos[0] = sinf( light->angle * 0.5f );
 114       light->angle_sin_cos[1] = cosf( light->angle * 0.5f );
 115    }
 116
 117    /* gates */
 118    for( u32 j=0; j<mdl_arrcount(&world->ent_gate); j ++ ){
 119       ent_gate *gate = mdl_arritm( &world->ent_gate, j );
 120
 121       if( !(gate->flags & k_ent_gate_nonlocal_DELETED) ) {
 122          gate_transform_update( gate );
 123       }
 124    }
 125
 126    /* water */
 127    for( u32 j=0; j<mdl_arrcount(&world->ent_water); j++ ){
 128       ent_water *water = mdl_arritm( &world->ent_water, j );
 129       if( world->water.enabled ){
 130          vg_warn( "Multiple water surfaces in level!\n" );
 131          break;
 132       }
 133
 134       world->water.enabled = 1;
 135       water_set_surface( world, water->transform.co[1] );
 136    }
 137
 138    /* volumes */
 139    for( u32 j=0; j<mdl_arrcount(&world->ent_volume); j++ ){
 140       ent_volume *volume = mdl_arritm( &world->ent_volume, j );
 141       mdl_transform_m4x3( &volume->transform, volume->to_world );
 142       m4x3_invert_full( volume->to_world, volume->to_local );
 143    }
 144
 145    /* audio packs */
 146    for( u32 j=0; j<mdl_arrcount(&world->ent_audio); j++ ){
 147       ent_audio *audio = mdl_arritm( &world->ent_audio, j );
 148
 149       for( u32 k=0; k<audio->clip_count; k++ ){
 150          ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip,
 151                                              audio->clip_start+k );
 152
 153          if( clip->_.file.pack_size ){
 154             u32 size = clip->_.file.pack_size,
 155                 offset = clip->_.file.pack_offset;
 156
 157             /* embedded files are fine to clear the scratch buffer, only
 158              * external audio uses it */
 159
 160             vg_linear_clear( vg_mem.scratch );
 161             void *data = vg_linear_alloc( vg_mem.scratch,
 162                                           clip->_.file.pack_size );
 163
 164             mdl_fread_pack_file( &world->meta, &clip->_.file, data );
 165
 166             clip->_.clip.path = NULL;
 167             clip->_.clip.flags = audio->flags;
 168             clip->_.clip.data = data;
 169             clip->_.clip.size = size;
 170          }
 171          else{
 172             clip->_.clip.path = mdl_pstr(&world->meta,clip->_.file.pstr_path);
 173             clip->_.clip.flags = audio->flags;
 174             clip->_.clip.data = NULL;
 175             clip->_.clip.size = 0;
 176          }
 177
 178          audio_clip_load( &clip->_.clip, world->heap );
 179       }
 180    }
 181
 182    /* create generic entity hierachy for those who need it */
 183    u32 indexed_count = 0;
 184    struct {
 185       u32 type;
 186       mdl_array_ptr *array;
 187    }
 188    indexables[] = {
 189       { k_ent_gate, &world->ent_gate },
 190       { k_ent_objective, &world->ent_objective },
 191       { k_ent_volume, &world->ent_volume },
 192       { k_ent_challenge, &world->ent_challenge }
 193    };
 194
 195    for( u32 i=0; i<vg_list_size(indexables); i++ )
 196       indexed_count += mdl_arrcount( indexables[i].array );
 197    vg_info( "indexing %u entities\n", indexed_count );
 198
 199    world->entity_list = vg_linear_alloc( world->heap,
 200                                          vg_align8(indexed_count*sizeof(u32)));
 201
 202    u32 index=0;
 203    for( u32 i=0; i<vg_list_size(indexables); i++ ){
 204       u32 type  = indexables[i].type,
 205           count = mdl_arrcount( indexables[i].array );
 206
 207       for( u32 j=0; j<count; j ++ )
 208          world->entity_list[index ++] = mdl_entity_id( type, j );
 209    }
 210
 211    world->entity_bh = bh_create( world->heap, &bh_system_entity_list, world,
 212                                  indexed_count, 2 );
 213 }
 214
 215 static
 216 ent_spawn *world_find_closest_spawn( world_instance *world, v3f position )
 217 {
 218    ent_spawn *rp = NULL, *r;
 219    float min_dist = INFINITY;
 220
 221    for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
 222       r = mdl_arritm( &world->ent_spawn, i );
 223       float d = v3_dist2( r->transform.co, position );
 224
 225       if( d < min_dist ){
 226          min_dist = d;
 227          rp = r;
 228       }
 229    }
 230
 231    if( !rp ){
 232       if( mdl_arrcount(&world->ent_spawn) ){
 233          vg_warn( "Invalid distances to spawns.. defaulting to first one.\n" );
 234          return mdl_arritm( &world->ent_spawn, 0 );
 235       }
 236       else{
 237          vg_error( "There are no spawns in the level!\n" );
 238       }
 239    }
 240
 241    return rp;
 242 }
 243
 244 static
 245 ent_spawn *world_find_spawn_by_name( world_instance *world, const char *name )
 246 {
 247    ent_spawn *rp = NULL, *r;
 248    for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
 249       r = mdl_arritm( &world->ent_spawn, i );
 250       if( !strcmp( mdl_pstr(&world->meta, r->pstr_name), name ) ){
 251          rp = r;
 252          break;
 253       }
 254    }
 255
 256    if( !rp )
 257       vg_warn( "No spawn named '%s'\n", name );
 258
 259    return rp;
 260 }
 261
 262 static void ent_volume_call( world_instance *world, ent_call *call )
 263 {
 264    u32 index = mdl_entity_id_id( call->id );
 265    ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 266    if( !volume->target ) return;
 267
 268    if( call->function == k_ent_function_trigger ){
 269       call->id = volume->target;
 270
 271       if( volume->flags & k_ent_volume_flag_particles ){
 272          float *co = alloca( sizeof(float)*3 );
 273          co[0] = vg_randf64()*2.0f-1.0f;
 274          co[1] = vg_randf64()*2.0f-1.0f;
 275          co[2] = vg_randf64()*2.0f-1.0f;
 276          m4x3_mulv( volume->to_world, co, co );
 277
 278          call->function = k_ent_function_particle_spawn;
 279          call->data = co;
 280          entity_call( world, call );
 281       }
 282       else{
 283          call->function = volume->trigger.event;
 284          entity_call( world, call );
 285       }
 286    }
 287    else if( call->function == k_ent_function_trigger_leave ){
 288       call->id = volume->target;
 289
 290       if( volume->flags & k_ent_volume_flag_particles ){
 291          assert(0);
 292       }
 293       else{
 294          call->function = volume->trigger.event_leave;
 295          entity_call( world, call );
 296       }
 297    }
 298 }
 299
 300 static void ent_audio_call( world_instance *world, ent_call *call ){
 301    if( world->status == k_world_status_unloading ){
 302       vg_warn( "cannot modify audio while unloading world\n" );
 303       return;
 304    }
 305
 306    u8 world_id = (world - world_static.instances) + 1;
 307    u32 index = mdl_entity_id_id( call->id );
 308    ent_audio *audio = mdl_arritm( &world->ent_audio, index );
 309
 310    v3f sound_co;
 311
 312    if( call->function == k_ent_function_particle_spawn ){
 313       v3_copy( call->data, sound_co );
 314    }
 315    else if( call->function == k_ent_function_trigger ){
 316       v3_copy( audio->transform.co, sound_co );
 317    }
 318    else
 319       vg_fatal_error( "ent_audio_call (invalid function id)" );
 320
 321    float chance = vg_randf64()*100.0f,
 322          bar = 0.0f;
 323
 324    for( u32 i=0; i<audio->clip_count; i++ ){
 325       ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip,
 326                                           audio->clip_start+i );
 327
 328       float mod = world->probabilities[ audio->probability_curve ],
 329             p   = clip->probability * mod;
 330
 331       bar += p;
 332       if( chance < bar ){
 333          audio_lock();
 334
 335          if( audio->behaviour == k_channel_behaviour_unlimited ){
 336             audio_oneshot_3d( &clip->_.clip, sound_co,
 337                               audio->transform.s[0],
 338                               audio->volume );
 339          }
 340          else if( audio->behaviour == k_channel_behaviour_discard_if_full ){
 341             audio_channel *ch =
 342                audio_get_group_idle_channel( audio->group,
 343                                              audio->max_channels );
 344
 345             if( ch ){
 346                audio_channel_init( ch, &clip->_.clip, audio->flags );
 347                audio_channel_group( ch, audio->group );
 348                audio_channel_world( ch, world_id );
 349                audio_channel_set_spacial( ch, sound_co, audio->transform.s[0] );
 350                audio_channel_edit_volume( ch, audio->volume, 1 );
 351                ch = audio_relinquish_channel( ch );
 352             }
 353          }
 354          else if( audio->behaviour == k_channel_behaviour_crossfade_if_full){
 355             audio_channel *ch =
 356                audio_get_group_idle_channel( audio->group,
 357                                              audio->max_channels );
 358
 359             /* group is full */
 360             if( !ch ){
 361                audio_channel *existing =
 362                   audio_get_group_first_active_channel( audio->group );
 363
 364                if( existing ){
 365                   if( existing->source == &clip->_.clip ){
 366                      audio_unlock();
 367                      return;
 368                   }
 369
 370                   existing->group = 0;
 371                   existing = audio_channel_fadeout(existing, audio->crossfade);
 372                }
 373
 374                ch = audio_get_first_idle_channel();
 375             }
 376
 377             if( ch ){
 378                audio_channel_init( ch, &clip->_.clip, audio->flags );
 379                audio_channel_group( ch, audio->group );
 380                audio_channel_world( ch, world_id );
 381                audio_channel_fadein( ch, audio->crossfade );
 382                ch = audio_relinquish_channel( ch );
 383             }
 384          }
 385
 386          audio_unlock();
 387          return;
 388       }
 389    }
 390 }
 391
 392
 393 static void ent_ccmd_call( world_instance *world, ent_call *call ){
 394    if( call->function == k_ent_function_trigger ){
 395       u32 index = mdl_entity_id_id( call->id );
 396       ent_ccmd *ccmd = mdl_arritm( &world->ent_ccmd, index );
 397       vg_execute_console_input( mdl_pstr(&world->meta, ccmd->pstr_command) );
 398    }
 399 }
 400
 401 /*
 402  * BVH implementation
 403  * ----------------------------------------------------------------------------
 404  */
 405
 406 static void
 407 entity_bh_expand_bound( void *user, boxf bound, u32 item_index ){
 408    world_instance *world = user;
 409
 410    u32 id    = world->entity_list[ item_index ],
 411        type  = mdl_entity_id_type( id ),
 412        index = mdl_entity_id_id( id );
 413
 414    if( type == k_ent_gate ){
 415       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 416       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 417                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 418
 419       m4x3_expand_aabb_aabb( gate->to_world, bound, box );
 420    }
 421    else if( type == k_ent_objective ){
 422       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 423
 424       /* TODO: This might be more work than necessary. could maybe just get
 425        *       away with representing them as points */
 426
 427       boxf box;
 428       box_init_inf( box );
 429
 430       for( u32 i=0; i<objective->submesh_count; i++ ){
 431          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 432                                        objective->submesh_start+i );
 433          box_concat( box, sm->bbx );
 434       }
 435
 436       m4x3f transform;
 437       mdl_transform_m4x3( &objective->transform, transform );
 438       m4x3_expand_aabb_aabb( transform, bound, box );
 439    }
 440    else if( type == k_ent_volume ){
 441       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 442       m4x3_expand_aabb_aabb( volume->to_world, bound,
 443                               (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}} );
 444    }
 445    else if( type == k_ent_challenge ){
 446       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 447
 448       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 449                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 450       m4x3f transform;
 451       mdl_transform_m4x3( &challenge->transform, transform );
 452       m4x3_expand_aabb_aabb( transform, bound, box );
 453    }
 454    else{
 455       vg_fatal_error( "Programming error\n" );
 456    }
 457 }
 458
 459 static float entity_bh_centroid( void *user, u32 item_index, int axis ){
 460    world_instance *world = user;
 461
 462    u32 id    = world->entity_list[ item_index ],
 463        type  = mdl_entity_id_type( id ),
 464        index = mdl_entity_id_id( id );
 465
 466    if( type == k_ent_gate ){
 467       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 468       return gate->to_world[3][axis];
 469    }
 470    else if( type == k_ent_objective ){
 471       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 472       return objective->transform.co[axis];
 473    }
 474    else if( type == k_ent_volume ){
 475       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 476       return volume->transform.co[axis];
 477    }
 478    else if( type == k_ent_challenge ){
 479       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 480       return challenge->transform.co[axis];
 481    }
 482    else {
 483       vg_fatal_error( "Programming error\n" );
 484       return INFINITY;
 485    }
 486 }
 487
 488 static void entity_bh_swap( void *user, u32 ia, u32 ib ){
 489    world_instance *world = user;
 490
 491    u32 a = world->entity_list[ ia ],
 492        b = world->entity_list[ ib ];
 493
 494    world->entity_list[ ia ] = b;
 495    world->entity_list[ ib ] = a;
 496 }
 497
 498 static void entity_bh_debug( void *user, u32 item_index ){
 499    world_instance *world = user;
 500
 501    u32 id    = world->entity_list[ item_index ],
 502        type  = mdl_entity_id_type( id ),
 503        index = mdl_entity_id_id( id );
 504
 505    if( type == k_ent_gate ){
 506       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 507       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 508                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 509       vg_line_boxf_transformed( gate->to_world, box, 0xf000ff00 );
 510    }
 511    else if( type == k_ent_objective ){
 512       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 513       boxf box;
 514       box_init_inf( box );
 515
 516       for( u32 i=0; i<objective->submesh_count; i++ ){
 517          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 518                                        objective->submesh_start+i );
 519          box_concat( box, sm->bbx );
 520       }
 521
 522       m4x3f transform;
 523       mdl_transform_m4x3( &objective->transform, transform );
 524       vg_line_boxf_transformed( transform, box, 0xf000ff00 );
 525    }
 526    else if( type == k_ent_volume ){
 527       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 528       vg_line_boxf_transformed( volume->to_world,
 529                                 (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}},
 530                                 0xf000ff00 );
 531    }
 532    else if( type == k_ent_challenge ){
 533       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 534
 535       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 536                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 537       m4x3f transform;
 538       mdl_transform_m4x3( &challenge->transform, transform );
 539       vg_line_boxf_transformed( transform, box, 0xf0ff0000 );
 540    }
 541    else{
 542       vg_fatal_error( "Programming error\n" );
 543    }
 544 }
 545
 546 static void entity_bh_closest( void *user, u32 item_index, v3f point,
 547                                   v3f closest ){
 548    world_instance *world = user;
 549
 550    u32 id    = world->entity_list[ item_index ],
 551        type  = mdl_entity_id_type( id ),
 552        index = mdl_entity_id_id( id );
 553
 554    if( type == k_ent_gate ){
 555       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 556       v3_copy( gate->to_world[3], closest );
 557    }
 558    else if( type == k_ent_objective ){
 559       ent_objective *challenge = mdl_arritm( &world->ent_objective, index );
 560       v3_copy( challenge->transform.co, closest );
 561    }
 562    else if( type == k_ent_volume ){
 563       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 564       v3_copy( volume->to_world[3], closest );
 565    }
 566    else if( type == k_ent_challenge ){
 567       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 568       v3_copy( challenge->transform.co, closest );
 569    }
 570    else{
 571       vg_fatal_error( "Programming error\n" );
 572    }
 573 }
 574
 575 static void world_entity_start( world_instance *world, vg_msg *sav ){
 576    vg_info( "Start instance %p\n", world );
 577
 578    world->probabilities[ k_probability_curve_constant ] = 1.0f;
 579    for( u32 i=0; i<mdl_arrcount(&world->ent_audio); i++ ){
 580       ent_audio *audio = mdl_arritm(&world->ent_audio,i);
 581       if( audio->flags & AUDIO_FLAG_AUTO_START ){
 582          ent_call call;
 583          call.data = NULL;
 584          call.function = k_ent_function_trigger;
 585          call.id = mdl_entity_id( k_ent_audio, i );
 586          entity_call( world, &call );
 587       }
 588    }
 589
 590    /* read savedata
 591     * ----------------------------------------------------------------------- */
 592
 593    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 594       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, i );
 595       const char *alias = mdl_pstr( &world->meta, challenge->pstr_alias );
 596
 597       if( vg_msg_getkvu32( sav, alias, 0 ) ){
 598          ent_call call;
 599          call.data = NULL;
 600          call.function = 0;
 601          call.id = mdl_entity_id( k_ent_challenge, i );
 602          entity_call( world, &call );
 603       }
 604    }
 605 }
 606
 607 #if 0
 608 /*
 609  * used for relinking multi-world data. ran anytime the world setup changes
 610  */
 611 static void world_entity_relink( world_instance *world ){
 612    vg_info( "entity_relink(%d)\n", world - world_static.instances );
 613    for( u32 i=0; i<mdl_arrcount(&world->ent_miniworld); i++ ){
 614       ent_miniworld *miniworld = mdl_arritm( &world->ent_miniworld, i );
 615       miniworld->purpose = k_world_purpose_invalid;
 616
 617       const char *uid = mdl_pstr( &world->meta, miniworld->pstr_world );
 618       addon_alias q;
 619       addon_uid_to_alias( uid, &q );
 620
 621       u32 addon_id = addon_match( &q );
 622       if( addon_id != 0xffffffff ){
 623          addon_reg *reg = get_addon_from_index( k_addon_type_world, addon_id );
 624
 625          for( int j=0; j<k_world_max; j ++ ){
 626             world_instance *other = &world_static.instances[j];
 627             if( other == world ) continue;
 628             if( (other->status == k_world_status_loaded) &&
 629                 (world_static.instance_addons[j] == reg) ){
 630                miniworld->purpose = j;
 631                break;
 632             }
 633          }
 634       }
 635    }
 636 }
 637 #endif
 638
 639 static void world_entity_serialize( world_instance *world, vg_msg *sav ){
 640    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 641       ent_challenge *challenge = mdl_arritm(&world->ent_challenge,i);
 642
 643       const char *alias = mdl_pstr(&world->meta,challenge->pstr_alias);
 644       vg_msg_wkvu32( sav, alias, challenge->status );
 645    }
 646 }
 647
 648 #endif /* WORLD_ENTITY_C */