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       m3x3_mulv( localplayer.invbasis, dir, dir );
  41       player_vector_angles( world_static.focus_cam.angles, dir, 1.0f, 0.0f );
  42       v3_copy( cam->transform.co, world_static.focus_cam.pos );
  43       world_static.focus_cam.fov = cam->fov;
  44    }
  45    else {
  46       camera_copy( &localplayer.cam, &world_static.focus_cam );
  47
  48       /* TODO ? */
  49       world_static.focus_cam.nearz = localplayer.cam.nearz;
  50       world_static.focus_cam.farz = localplayer.cam.farz;
  51    }
  52 }
  53
  54 /* logic preupdate */
  55 static void world_entity_focus_preupdate(void){
  56    f32 rate = vg_minf( 1.0f, vg.time_frame_delta * 2.0f );
  57    int active = 0;
  58    if( skaterift.activity == k_skaterift_ent_focus )
  59       active = 1;
  60
  61    vg_slewf( &world_static.focus_strength, active,
  62              vg.time_frame_delta * (1.0f/0.5f) );
  63
  64    u32 type = mdl_entity_id_type( world_static.focused_entity ),
  65        index = mdl_entity_id_id( world_static.focused_entity );
  66    world_instance *world = world_current_instance();
  67
  68    /* TODO: Table. */
  69    if( type == k_ent_skateshop ){
  70       ent_skateshop *skateshop = mdl_arritm( &world->ent_skateshop, index );
  71       ent_skateshop_preupdate( skateshop, active );
  72    }
  73    else if( type == k_ent_challenge ){
  74       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
  75       ent_challenge_preupdate( challenge, active );
  76    }
  77    else if( type == k_ent_route ){
  78       ent_route *route = mdl_arritm( &world->ent_route, index );
  79       ent_route_preupdate( route, active );
  80    }
  81 }
  82
  83 /* additional renderings like text etc.. */
  84 static void world_entity_focus_render(void){
  85    if( skaterift.activity != k_skaterift_ent_focus )
  86       return;
  87
  88    u32 type = mdl_entity_id_type( world_static.focused_entity ),
  89        index = mdl_entity_id_id( world_static.focused_entity );
  90    world_instance *world = world_current_instance();
  91
  92    if( type == k_ent_skateshop ){
  93       ent_skateshop *skateshop = mdl_arritm( &world->ent_skateshop, index );
  94       skateshop_render( skateshop );
  95    }
  96    else if( type == k_ent_challenge ){
  97    }
  98    else if( type == k_ent_route ){
  99    }
 100    else {
 101       vg_fatal_error( "Programming error\n" );
 102    }
 103 }
 104
 105 static void world_gen_entities_init( world_instance *world ){
 106    /* lights */
 107    for( u32 j=0; j<mdl_arrcount(&world->ent_light); j ++ ){
 108       ent_light *light = mdl_arritm( &world->ent_light, j );
 109
 110       m4x3f to_world;
 111       q_m3x3( light->transform.q, to_world );
 112       v3_copy( light->transform.co, to_world[3] );
 113       m4x3_invert_affine( to_world, light->inverse_world );
 114
 115       light->angle_sin_cos[0] = sinf( light->angle * 0.5f );
 116       light->angle_sin_cos[1] = cosf( light->angle * 0.5f );
 117    }
 118
 119    /* gates */
 120    for( u32 j=0; j<mdl_arrcount(&world->ent_gate); j ++ ){
 121       ent_gate *gate = mdl_arritm( &world->ent_gate, j );
 122
 123       if( !(gate->flags & k_ent_gate_nonlocal_DELETED) ) {
 124          gate_transform_update( gate );
 125       }
 126    }
 127
 128    /* water */
 129    for( u32 j=0; j<mdl_arrcount(&world->ent_water); j++ ){
 130       ent_water *water = mdl_arritm( &world->ent_water, j );
 131       if( world->water.enabled ){
 132          vg_warn( "Multiple water surfaces in level!\n" );
 133          break;
 134       }
 135
 136       world->water.enabled = 1;
 137       water_set_surface( world, water->transform.co[1] );
 138    }
 139
 140    /* volumes */
 141    for( u32 j=0; j<mdl_arrcount(&world->ent_volume); j++ ){
 142       ent_volume *volume = mdl_arritm( &world->ent_volume, j );
 143       mdl_transform_m4x3( &volume->transform, volume->to_world );
 144       m4x3_invert_full( volume->to_world, volume->to_local );
 145    }
 146
 147    /* audio packs */
 148    for( u32 j=0; j<mdl_arrcount(&world->ent_audio); j++ ){
 149       ent_audio *audio = mdl_arritm( &world->ent_audio, j );
 150
 151       for( u32 k=0; k<audio->clip_count; k++ ){
 152          ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip,
 153                                              audio->clip_start+k );
 154
 155          if( clip->_.file.pack_size ){
 156             u32 size = clip->_.file.pack_size,
 157                 offset = clip->_.file.pack_offset;
 158
 159             /* embedded files are fine to clear the scratch buffer, only
 160              * external audio uses it */
 161
 162             vg_linear_clear( vg_mem.scratch );
 163             void *data = vg_linear_alloc( vg_mem.scratch,
 164                                           clip->_.file.pack_size );
 165
 166             mdl_fread_pack_file( &world->meta, &clip->_.file, data );
 167
 168             clip->_.clip.path = NULL;
 169             clip->_.clip.flags = audio->flags;
 170             clip->_.clip.data = data;
 171             clip->_.clip.size = size;
 172          }
 173          else{
 174             clip->_.clip.path = mdl_pstr(&world->meta,clip->_.file.pstr_path);
 175             clip->_.clip.flags = audio->flags;
 176             clip->_.clip.data = NULL;
 177             clip->_.clip.size = 0;
 178          }
 179
 180          audio_clip_load( &clip->_.clip, world->heap );
 181       }
 182    }
 183
 184    /* create generic entity hierachy for those who need it */
 185    u32 indexed_count = 0;
 186    struct {
 187       u32 type;
 188       mdl_array_ptr *array;
 189    }
 190    indexables[] = {
 191       { k_ent_gate, &world->ent_gate },
 192       { k_ent_objective, &world->ent_objective },
 193       { k_ent_volume, &world->ent_volume },
 194       { k_ent_challenge, &world->ent_challenge }
 195    };
 196
 197    for( u32 i=0; i<vg_list_size(indexables); i++ )
 198       indexed_count += mdl_arrcount( indexables[i].array );
 199    vg_info( "indexing %u entities\n", indexed_count );
 200
 201    world->entity_list = vg_linear_alloc( world->heap,
 202                                          vg_align8(indexed_count*sizeof(u32)));
 203
 204    u32 index=0;
 205    for( u32 i=0; i<vg_list_size(indexables); i++ ){
 206       u32 type  = indexables[i].type,
 207           count = mdl_arrcount( indexables[i].array );
 208
 209       for( u32 j=0; j<count; j ++ )
 210          world->entity_list[index ++] = mdl_entity_id( type, j );
 211    }
 212
 213    world->entity_bh = bh_create( world->heap, &bh_system_entity_list, world,
 214                                  indexed_count, 2 );
 215 }
 216
 217 static
 218 ent_spawn *world_find_closest_spawn( world_instance *world, v3f position )
 219 {
 220    ent_spawn *rp = NULL, *r;
 221    float min_dist = INFINITY;
 222
 223    for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
 224       r = mdl_arritm( &world->ent_spawn, i );
 225       float d = v3_dist2( r->transform.co, position );
 226
 227       if( d < min_dist ){
 228          min_dist = d;
 229          rp = r;
 230       }
 231    }
 232
 233    if( !rp ){
 234       if( mdl_arrcount(&world->ent_spawn) ){
 235          vg_warn( "Invalid distances to spawns.. defaulting to first one.\n" );
 236          return mdl_arritm( &world->ent_spawn, 0 );
 237       }
 238       else{
 239          vg_error( "There are no spawns in the level!\n" );
 240       }
 241    }
 242
 243    return rp;
 244 }
 245
 246 static
 247 ent_spawn *world_find_spawn_by_name( world_instance *world, const char *name )
 248 {
 249    ent_spawn *rp = NULL, *r;
 250    for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
 251       r = mdl_arritm( &world->ent_spawn, i );
 252       if( !strcmp( mdl_pstr(&world->meta, r->pstr_name), name ) ){
 253          rp = r;
 254          break;
 255       }
 256    }
 257
 258    if( !rp )
 259       vg_warn( "No spawn named '%s'\n", name );
 260
 261    return rp;
 262 }
 263
 264 static void ent_volume_call( world_instance *world, ent_call *call )
 265 {
 266    u32 index = mdl_entity_id_id( call->id );
 267    ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 268    if( !volume->target ) return;
 269
 270    if( call->function == k_ent_function_trigger ){
 271       call->id = volume->target;
 272
 273       if( volume->flags & k_ent_volume_flag_particles ){
 274          float *co = alloca( sizeof(float)*3 );
 275          co[0] = vg_randf64()*2.0f-1.0f;
 276          co[1] = vg_randf64()*2.0f-1.0f;
 277          co[2] = vg_randf64()*2.0f-1.0f;
 278          m4x3_mulv( volume->to_world, co, co );
 279
 280          call->function = k_ent_function_particle_spawn;
 281          call->data = co;
 282          entity_call( world, call );
 283       }
 284       else{
 285          call->function = volume->trigger.event;
 286          entity_call( world, call );
 287       }
 288    }
 289 }
 290
 291 static void ent_audio_call( world_instance *world, ent_call *call ){
 292    if( world->status == k_world_status_unloading ){
 293       vg_warn( "cannot modify audio while unloading world\n" );
 294       return;
 295    }
 296
 297    u8 world_id = (world - world_static.instances) + 1;
 298    u32 index = mdl_entity_id_id( call->id );
 299    ent_audio *audio = mdl_arritm( &world->ent_audio, index );
 300
 301    v3f sound_co;
 302
 303    if( call->function == k_ent_function_particle_spawn ){
 304       v3_copy( call->data, sound_co );
 305    }
 306    else if( call->function == k_ent_function_trigger ){
 307       v3_copy( audio->transform.co, sound_co );
 308    }
 309    else
 310       vg_fatal_error( "ent_audio_call (invalid function id)" );
 311
 312    float chance = vg_randf64()*100.0f,
 313          bar = 0.0f;
 314
 315    for( u32 i=0; i<audio->clip_count; i++ ){
 316       ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip,
 317                                           audio->clip_start+i );
 318
 319       float mod = world->probabilities[ audio->probability_curve ],
 320             p   = clip->probability * mod;
 321
 322       bar += p;
 323       if( chance < bar ){
 324          audio_lock();
 325
 326          if( audio->behaviour == k_channel_behaviour_unlimited ){
 327             audio_oneshot_3d( &clip->_.clip, sound_co,
 328                               audio->transform.s[0],
 329                               audio->volume );
 330          }
 331          else if( audio->behaviour == k_channel_behaviour_discard_if_full ){
 332             audio_channel *ch =
 333                audio_get_group_idle_channel( audio->group,
 334                                              audio->max_channels );
 335
 336             if( ch ){
 337                audio_channel_init( ch, &clip->_.clip, audio->flags );
 338                audio_channel_group( ch, audio->group );
 339                audio_channel_world( ch, world_id );
 340                audio_channel_set_spacial( ch, sound_co, audio->transform.s[0] );
 341                audio_channel_edit_volume( ch, audio->volume, 1 );
 342                ch = audio_relinquish_channel( ch );
 343             }
 344          }
 345          else if( audio->behaviour == k_channel_behaviour_crossfade_if_full){
 346             audio_channel *ch =
 347                audio_get_group_idle_channel( audio->group,
 348                                              audio->max_channels );
 349
 350             /* group is full */
 351             if( !ch ){
 352                audio_channel *existing =
 353                   audio_get_group_first_active_channel( audio->group );
 354
 355                if( existing ){
 356                   if( existing->source == &clip->_.clip ){
 357                      audio_unlock();
 358                      return;
 359                   }
 360
 361                   existing->group = 0;
 362                   existing = audio_channel_fadeout(existing, audio->crossfade);
 363                }
 364
 365                ch = audio_get_first_idle_channel();
 366             }
 367
 368             if( ch ){
 369                audio_channel_init( ch, &clip->_.clip, audio->flags );
 370                audio_channel_group( ch, audio->group );
 371                audio_channel_world( ch, world_id );
 372                audio_channel_fadein( ch, audio->crossfade );
 373                ch = audio_relinquish_channel( ch );
 374             }
 375          }
 376
 377          audio_unlock();
 378          return;
 379       }
 380    }
 381 }
 382
 383
 384 static void ent_ccmd_call( world_instance *world, ent_call *call ){
 385    if( call->function == k_ent_function_trigger ){
 386       u32 index = mdl_entity_id_id( call->id );
 387       ent_ccmd *ccmd = mdl_arritm( &world->ent_ccmd, index );
 388       vg_execute_console_input( mdl_pstr(&world->meta, ccmd->pstr_command) );
 389    }
 390 }
 391
 392 /*
 393  * BVH implementation
 394  * ----------------------------------------------------------------------------
 395  */
 396
 397 static void
 398 entity_bh_expand_bound( void *user, boxf bound, u32 item_index ){
 399    world_instance *world = user;
 400
 401    u32 id    = world->entity_list[ item_index ],
 402        type  = mdl_entity_id_type( id ),
 403        index = mdl_entity_id_id( id );
 404
 405    if( type == k_ent_gate ){
 406       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 407       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 408                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 409
 410       m4x3_expand_aabb_aabb( gate->to_world, bound, box );
 411    }
 412    else if( type == k_ent_objective ){
 413       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 414
 415       /* TODO: This might be more work than necessary. could maybe just get
 416        *       away with representing them as points */
 417
 418       boxf box;
 419       box_init_inf( box );
 420
 421       for( u32 i=0; i<objective->submesh_count; i++ ){
 422          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 423                                        objective->submesh_start+i );
 424          box_concat( box, sm->bbx );
 425       }
 426
 427       m4x3f transform;
 428       mdl_transform_m4x3( &objective->transform, transform );
 429       m4x3_expand_aabb_aabb( transform, bound, box );
 430    }
 431    else if( type == k_ent_volume ){
 432       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 433       m4x3_expand_aabb_aabb( volume->to_world, bound,
 434                               (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}} );
 435    }
 436    else if( type == k_ent_challenge ){
 437       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 438
 439       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 440                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 441       m4x3f transform;
 442       mdl_transform_m4x3( &challenge->transform, transform );
 443       m4x3_expand_aabb_aabb( transform, bound, box );
 444    }
 445    else{
 446       vg_fatal_error( "Programming error\n" );
 447    }
 448 }
 449
 450 static float entity_bh_centroid( void *user, u32 item_index, int axis ){
 451    world_instance *world = user;
 452
 453    u32 id    = world->entity_list[ item_index ],
 454        type  = mdl_entity_id_type( id ),
 455        index = mdl_entity_id_id( id );
 456
 457    if( type == k_ent_gate ){
 458       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 459       return gate->to_world[3][axis];
 460    }
 461    else if( type == k_ent_objective ){
 462       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 463       return objective->transform.co[axis];
 464    }
 465    else if( type == k_ent_volume ){
 466       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 467       return volume->transform.co[axis];
 468    }
 469    else if( type == k_ent_challenge ){
 470       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 471       return challenge->transform.co[axis];
 472    }
 473    else {
 474       vg_fatal_error( "Programming error\n" );
 475       return INFINITY;
 476    }
 477 }
 478
 479 static void entity_bh_swap( void *user, u32 ia, u32 ib ){
 480    world_instance *world = user;
 481
 482    u32 a = world->entity_list[ ia ],
 483        b = world->entity_list[ ib ];
 484
 485    world->entity_list[ ia ] = b;
 486    world->entity_list[ ib ] = a;
 487 }
 488
 489 static void entity_bh_debug( void *user, u32 item_index ){
 490    world_instance *world = user;
 491
 492    u32 id    = world->entity_list[ item_index ],
 493        type  = mdl_entity_id_type( id ),
 494        index = mdl_entity_id_id( id );
 495
 496    if( type == k_ent_gate ){
 497       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 498       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 499                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 500       vg_line_boxf_transformed( gate->to_world, box, 0xf000ff00 );
 501    }
 502    else if( type == k_ent_objective ){
 503       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 504       boxf box;
 505       box_init_inf( box );
 506
 507       for( u32 i=0; i<objective->submesh_count; i++ ){
 508          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 509                                        objective->submesh_start+i );
 510          box_concat( box, sm->bbx );
 511       }
 512
 513       m4x3f transform;
 514       mdl_transform_m4x3( &objective->transform, transform );
 515       vg_line_boxf_transformed( transform, box, 0xf000ff00 );
 516    }
 517    else if( type == k_ent_volume ){
 518       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 519       vg_line_boxf_transformed( volume->to_world,
 520                                 (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}},
 521                                 0xf000ff00 );
 522    }
 523    else if( type == k_ent_challenge ){
 524       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 525
 526       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 527                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 528       m4x3f transform;
 529       mdl_transform_m4x3( &challenge->transform, transform );
 530       vg_line_boxf_transformed( transform, box, 0xf0ff0000 );
 531    }
 532    else{
 533       vg_fatal_error( "Programming error\n" );
 534    }
 535 }
 536
 537 static void entity_bh_closest( void *user, u32 item_index, v3f point,
 538                                   v3f closest ){
 539    world_instance *world = user;
 540
 541    u32 id    = world->entity_list[ item_index ],
 542        type  = mdl_entity_id_type( id ),
 543        index = mdl_entity_id_id( id );
 544
 545    if( type == k_ent_gate ){
 546       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 547       v3_copy( gate->to_world[3], closest );
 548    }
 549    else if( type == k_ent_objective ){
 550       ent_objective *challenge = mdl_arritm( &world->ent_objective, index );
 551       v3_copy( challenge->transform.co, closest );
 552    }
 553    else if( type == k_ent_volume ){
 554       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 555       v3_copy( volume->to_world[3], closest );
 556    }
 557    else if( type == k_ent_challenge ){
 558       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 559       v3_copy( challenge->transform.co, closest );
 560    }
 561    else{
 562       vg_fatal_error( "Programming error\n" );
 563    }
 564 }
 565
 566 static void world_entity_start( world_instance *world, vg_msg *sav ){
 567    vg_info( "Start instance %p\n", world );
 568
 569    world->probabilities[ k_probability_curve_constant ] = 1.0f;
 570    for( u32 i=0; i<mdl_arrcount(&world->ent_audio); i++ ){
 571       ent_audio *audio = mdl_arritm(&world->ent_audio,i);
 572       if( audio->flags & AUDIO_FLAG_AUTO_START ){
 573          ent_call call;
 574          call.data = NULL;
 575          call.function = k_ent_function_trigger;
 576          call.id = mdl_entity_id( k_ent_audio, i );
 577          entity_call( world, &call );
 578       }
 579    }
 580
 581    /* read savedata
 582     * ----------------------------------------------------------------------- */
 583
 584    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 585       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, i );
 586       const char *alias = mdl_pstr( &world->meta, challenge->pstr_alias );
 587
 588       if( vg_msg_getkvu32( sav, alias, 0 ) ){
 589          ent_call call;
 590          call.data = NULL;
 591          call.function = 0;
 592          call.id = mdl_entity_id( k_ent_challenge, i );
 593          entity_call( world, &call );
 594       }
 595    }
 596 }
 597
 598 /*
 599  * used for relinking multi-world data. ran anytime the world setup changes
 600  */
 601 static void world_entity_relink( world_instance *world ){
 602    vg_info( "entity_relink(%d)\n", world - world_static.instances );
 603    for( u32 i=0; i<mdl_arrcount(&world->ent_miniworld); i++ ){
 604       ent_miniworld *miniworld = mdl_arritm( &world->ent_miniworld, i );
 605       miniworld->purpose = k_world_purpose_invalid;
 606
 607       const char *uid = mdl_pstr( &world->meta, miniworld->pstr_world );
 608       addon_alias q;
 609       addon_uid_to_alias( uid, &q );
 610
 611       u32 addon_id = addon_match( &q );
 612       if( addon_id != 0xffffffff ){
 613          addon_reg *reg = get_addon_from_index( k_addon_type_world, addon_id );
 614
 615          for( int j=0; j<k_world_max; j ++ ){
 616             world_instance *other = &world_static.instances[j];
 617             if( other == world ) continue;
 618             if( (other->status == k_world_status_loaded) &&
 619                 (world_static.instance_addons[j] == reg) ){
 620                miniworld->purpose = j;
 621                break;
 622             }
 623          }
 624       }
 625    }
 626 }
 627
 628 static void world_entity_serialize( world_instance *world, vg_msg *sav ){
 629    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 630       ent_challenge *challenge = mdl_arritm(&world->ent_challenge,i);
 631
 632       const char *alias = mdl_pstr(&world->meta,challenge->pstr_alias);
 633       vg_msg_wkvu32( sav, alias, challenge->status );
 634    }
 635 }
 636
 637 #endif /* WORLD_ENTITY_C */