world_gen.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef WORLD_GEN_H
   6 #define WORLD_GEN_H
   7
   8 #include "world.h"
   9
  10 /* load world TODO: Put back vg back in loading state while this happens */
  11 VG_STATIC void world_load(void);
  12
  13
  14 VG_STATIC void world_add_all_if_material( m4x3f transform, scene *pscene,
  15                                           mdl_context *mdl, u32 id )
  16 {
  17    for( int i=0; i<mdl->info.node_count; i++ )
  18    {
  19       mdl_node *pnode = mdl_node_from_id( mdl, i );
  20
  21       for( int j=0; j<pnode->submesh_count; j++ )
  22       {
  23          mdl_submesh *sm = mdl_node_submesh( mdl, pnode, j );
  24          if( sm->material_id == id )
  25          {
  26             m4x3f transform2;
  27             mdl_node_transform( pnode, transform2 );
  28             m4x3_mul( transform, transform2, transform2 );
  29
  30             scene_add_submesh( pscene, mdl, sm, transform2 );
  31          }
  32       }
  33    }
  34 }
  35
  36 /* Sprinkle foliage models over the map on terrain material */
  37 VG_STATIC void world_apply_procedural_foliage( struct world_material *mat )
  38 {
  39    if( vg.quality_profile == k_quality_profile_low )
  40       return;
  41
  42    vg_info( "Applying foliage (%u)\n", mat->info.pstr_name );
  43
  44    vg_linear_clear( vg_mem.scratch );
  45
  46    mdl_context *mfoliage =
  47       mdl_load_full( vg_mem.scratch, "models/rs_foliage.mdl");
  48
  49    v3f volume;
  50    v3_sub( world.scene_geo->bbx[1], world.scene_geo->bbx[0], volume );
  51    volume[1] = 1.0f;
  52
  53    m4x3f transform;
  54    mdl_node *mblob = mdl_node_from_name( mfoliage, "blob" );
  55    mdl_submesh *sm_blob = mdl_node_submesh( mfoliage, mblob, 0 );
  56
  57    int count = 0;
  58
  59    float area = volume[0]*volume[2];
  60    u32 particles = 0.08f * area;
  61
  62    vg_info( "Map area: %f. Max particles: %u\n", area, particles );
  63
  64    for( int i=0;i<particles;i++ )
  65    {
  66       v3f pos;
  67       v3_mul( volume, (v3f){ vg_randf(), 1000.0f, vg_randf() }, pos );
  68       pos[1] = 1000.0f;
  69       v3_add( pos, world.scene_geo->bbx[0], pos );
  70
  71       ray_hit hit;
  72       hit.dist = INFINITY;
  73
  74       if( ray_world( pos, (v3f){0.0001f,-1.0f,0.0001f}, &hit ))
  75       {
  76          struct world_material *m1 = ray_hit_material( &hit );
  77          if((hit.normal[1] > 0.8f) && (m1 == mat) && (hit.pos[1] > 0.0f+10.0f))
  78          {
  79             v4f qsurface, qrandom;
  80             v3f axis;
  81
  82             v3_cross( (v3f){0.0f,1.0f,0.0f}, hit.normal, axis );
  83
  84             float angle = v3_dot(hit.normal,(v3f){0.0f,1.0f,0.0f});
  85             q_axis_angle( qsurface, axis, angle );
  86             q_axis_angle( qrandom, (v3f){0.0f,1.0f,0.0f}, vg_randf()*VG_TAUf );
  87             q_mul( qsurface, qrandom, qsurface );
  88             q_m3x3( qsurface, transform );
  89
  90             v3_copy( hit.pos, transform[3] );
  91             scene_add_submesh( world.scene_no_collide, mfoliage,
  92                                sm_blob, transform);
  93
  94             count ++;
  95          }
  96       }
  97    }
  98
  99    vg_info( "%d foliage models added\n", count );
 100 }
 101
 102 VG_STATIC void world_ents_allocate(void)
 103 {
 104    vg_info( "Allocating entities\n" );
 105
 106    /* count entites to allocate buffers for them.
 107     * maybe in the future we just store these numbers in the model file...
 108     *
 109     * TODO: use this in world_routes too */
 110
 111    struct countable
 112    {
 113       enum   classtype ct;
 114       void **to_allocate;
 115       u32    item_size;
 116       int    count;
 117    }
 118    entity_counts[] =
 119    {
 120       {
 121          k_classtype_spawn,
 122          (void*)&world.spawns,
 123          sizeof(struct respawn_point)
 124       },
 125       {
 126          k_classtype_audio,
 127          (void*)&world.audio_things,
 128          sizeof(struct world_audio_thing)
 129       },
 130       {
 131          k_classtype_trigger,
 132          (void*)&world.triggers,
 133          sizeof(struct trigger_zone)
 134       },
 135       {
 136          k_classtype_logic_relay,
 137          (void*)&world.logic_relays,
 138          sizeof(struct logic_relay)
 139       },
 140       {
 141          k_classtype_logic_achievement,
 142          (void*)&world.logic_achievements,
 143          sizeof(struct logic_achievement)
 144       }
 145    };
 146
 147    for( int i=0; i<vg_list_size(entity_counts); i++ )
 148       entity_counts[i].count = 0;
 149
 150    for( int i=0; i<world.meta->info.node_count; i++ )
 151    {
 152       mdl_node *pnode = mdl_node_from_id( world.meta, i );
 153
 154       for( int j=0; j<vg_list_size(entity_counts); j ++ )
 155       {
 156          if( pnode->classtype == entity_counts[j].ct )
 157          {
 158             pnode->sub_uid = entity_counts[j].count;
 159             entity_counts[j].count ++;
 160             break;
 161          }
 162       }
 163    }
 164
 165    for( int i=0; i<vg_list_size(entity_counts); i++ )
 166    {
 167       struct countable *counter = &entity_counts[i];
 168
 169       u32 bufsize = counter->item_size*counter->count;
 170       *counter->to_allocate = vg_linear_alloc( world.dynamic_vgl, bufsize );
 171    }
 172 }
 173
 174 VG_STATIC void world_pct_spawn( mdl_node *pnode )
 175 {
 176    struct respawn_point *rp = &world.spawns[ world.spawn_count ++ ];
 177
 178    v3_copy( pnode->co, rp->co );
 179    v4_copy( pnode->q, rp->q );
 180    rp->name = mdl_pstr( world.meta, pnode->pstr_name );
 181 }
 182
 183 VG_STATIC void world_pct_water( mdl_node *pnode )
 184 {
 185    if( world.water.enabled )
 186    {
 187       vg_warn( "Multiple water surfaces in level! ('%s')\n",
 188                mdl_pstr( world.meta, pnode->pstr_name ));
 189       return;
 190    }
 191
 192    world.water.enabled = 1;
 193    water_set_surface( pnode->co[1] );
 194 }
 195
 196 VG_STATIC void world_pct_audio( mdl_node *pnode )
 197 {
 198    struct world_audio_thing *thing = &world.audio_things[
 199                                       world.audio_things_count ];
 200
 201    memset( thing, 0, sizeof(struct world_audio_thing) );
 202    struct classtype_audio *aud = mdl_get_entdata( world.meta, pnode );
 203
 204    v3_copy( pnode->co, thing->pos );
 205
 206    if( aud->flags & AUDIO_FLAG_SPACIAL_3D )
 207       thing->volume = aud->volume * pnode->s[0];
 208    else
 209       thing->volume = aud->volume;
 210
 211    thing->flags = aud->flags;
 212    thing->temp_embedded_clip.path = mdl_pstr( world.meta, aud->pstr_file );
 213    thing->temp_embedded_clip.source_mode = k_audio_source_mono;
 214
 215    audio_clip_load( &thing->temp_embedded_clip, world.audio_vgl );
 216    thing->player.name = mdl_pstr( world.meta, pnode->pstr_name );
 217    thing->player.enqued = 0;
 218
 219    pnode->sub_uid = world.audio_things_count;
 220    world.audio_things_count ++;
 221 }
 222
 223
 224 VG_STATIC void world_pct_trigger( mdl_node *pnode )
 225 {
 226    struct trigger_zone *trigger = &world.triggers[ world.trigger_count ];
 227    struct classtype_trigger *inf = mdl_get_entdata( world.meta, pnode );
 228
 229    if( inf->target )
 230    {
 231       mdl_node *target_node = mdl_node_from_id( world.meta, inf->target );
 232
 233       trigger->target.sub_id = target_node->sub_uid;
 234       trigger->target.classtype = target_node->classtype;
 235    }
 236    else
 237    {
 238       vg_warn( "Trigger with no target...\n" );
 239       return;
 240    }
 241
 242    mdl_node_transform( pnode, trigger->transform );
 243    m4x3_invert_full( trigger->transform, trigger->inv_transform );
 244
 245    world.trigger_count ++;
 246 }
 247
 248
 249 VG_STATIC void world_pct_relay( mdl_node *pnode )
 250 {
 251    struct logic_relay *relay = &world.logic_relays[ world.relay_count ];
 252    struct classtype_logic_relay *inf = mdl_get_entdata( world.meta, pnode );
 253
 254    relay->target_count = 0;
 255
 256    for( int i=0; i<vg_list_size(relay->targets); i++ )
 257    {
 258       if( inf->targets[i] )
 259       {
 260          struct relay_target *target = &relay->targets[relay->target_count ++];
 261          mdl_node *other = mdl_node_from_id( world.meta, inf->targets[i] );
 262
 263          target->classtype = other->classtype;
 264          target->sub_id = other->sub_uid;
 265       }
 266    }
 267
 268    v3_copy( pnode->co, relay->pos );
 269    world.relay_count ++;
 270 }
 271
 272
 273 VG_STATIC void world_pct_achievement( mdl_node *pnode )
 274 {
 275    struct logic_achievement *ach =
 276       &world.logic_achievements[ world.achievement_count ];
 277    struct classtype_logic_achievement *inf =
 278       mdl_get_entdata( world.meta, pnode );
 279
 280    v3_copy( pnode->co, ach->pos );
 281    ach->achievement_id = mdl_pstr( world.meta, inf->pstr_name );
 282    ach->achieved = 0;
 283
 284    world.achievement_count ++;
 285 }
 286
 287
 288 VG_STATIC void world_entities_process(void)
 289 {
 290    struct entity_instruction
 291    {
 292       enum classtype ct;
 293       void (*process)( mdl_node *pnode );
 294    }
 295    entity_instructions[] =
 296    {
 297       { k_classtype_spawn,    world_pct_spawn },
 298       { k_classtype_water,    world_pct_water },
 299       { k_classtype_audio,    world_pct_audio },
 300       { k_classtype_trigger,  world_pct_trigger },
 301       { k_classtype_logic_relay, world_pct_relay },
 302       { k_classtype_logic_achievement, world_pct_achievement }
 303    };
 304
 305    for( int i=0; i<world.meta->info.node_count; i++ )
 306    {
 307       mdl_node *pnode = mdl_node_from_id( world.meta, i );
 308
 309       for( int j=0; j<vg_list_size(entity_instructions); j++ )
 310       {
 311          struct entity_instruction *instr = &entity_instructions[j];
 312
 313          if( pnode->classtype == instr->ct )
 314          {
 315             instr->process( pnode );
 316             break;
 317          }
 318       }
 319    }
 320 }
 321
 322 VG_STATIC void edge_bh_expand_bound( void *user, boxf bound, u32 item_index )
 323 {
 324    struct grind_edge *edge_array = user,
 325                      *edge = &edge_array[ item_index ];
 326
 327   box_addpt( bound, edge->p0 );
 328   box_addpt( bound, edge->p1 );
 329 }
 330
 331 VG_STATIC float edge_bh_centroid( void *user, u32 item_index, int axis )
 332 {
 333    struct grind_edge *edge_array = user,
 334                      *edge = &edge_array[ item_index ];
 335
 336    return (edge->p0[axis] + edge->p1[axis]) * 0.5f;
 337 }
 338
 339 VG_STATIC void edge_bh_swap( void *user, u32 ia, u32 ib )
 340 {
 341    struct grind_edge *edge_array = user,
 342                      *e0 = &edge_array[ ia ],
 343                      *e1 = &edge_array[ ib ],
 344                       et;
 345    et = *e0;
 346    *e0 = *e1;
 347    *e1 = et;
 348 }
 349
 350 VG_STATIC void edge_bh_closest( void *user, u32 index, v3f point, v3f closest )
 351 {
 352    struct grind_edge *edge_array = user,
 353                      *edge = &edge_array[ index ];
 354
 355    closest_point_segment( edge->p0, edge->p1, point, closest );
 356 }
 357
 358 VG_STATIC bh_system bh_system_edges =
 359 {
 360    .expand_bound = edge_bh_expand_bound,
 361    .item_centroid = edge_bh_centroid,
 362    .item_closest = edge_bh_closest,
 363    .item_swap = edge_bh_swap,
 364    .item_debug = NULL,
 365    .cast_ray = NULL
 366 };
 367
 368 VG_STATIC void world_generate_edges(void)
 369 {
 370    vg_info( "Generating edge array\n" );
 371    world.grind_edges = vg_linear_alloc( world.dynamic_vgl,
 372                                         5000*sizeof(struct grind_edge ) );
 373    world.grind_edge_count = 0;
 374
 375    u32 fs_count = 0;
 376    for( u32 i=0; i<world.scene_geo->vertex_count; i++ )
 377       if( world.scene_geo->arrvertices[i].weights[0] )
 378          fs_count ++;
 379
 380    vg_info( "Grind verts: %u\n", fs_count );
 381
 382    for( u32 i=0; i<world.scene_geo->indice_count/3; i++ )
 383    {
 384       u32 *ptri = &world.scene_geo->arrindices[ i*3 ];
 385
 386       for( int j=0; j<3; j++ )
 387       {
 388          u32 i0 = ptri[j],
 389              i1 = ptri[(j+1)%3];
 390
 391          mdl_vert *v0 = &world.scene_geo->arrvertices[ i0 ],
 392                   *v1 = &world.scene_geo->arrvertices[ i1 ];
 393
 394          if( v0->weights[0] )
 395          {
 396             if( world.grind_edge_count == 5000 )
 397                vg_fatal_exit_loop( "Edge capacity exceeded" );
 398
 399             struct grind_edge *ge =
 400                &world.grind_edges[ world.grind_edge_count ++ ];
 401
 402             v3_copy( v0->co, ge->p0 );
 403             v3_copy( v1->co, ge->p1 );
 404          }
 405       }
 406    }
 407
 408    vg_info( "Grind edge count: %u\n", world.grind_edge_count );
 409
 410    world.grind_edges = vg_linear_resize( world.dynamic_vgl, world.grind_edges,
 411                            world.grind_edge_count*sizeof(struct grind_edge) );
 412
 413    world.grind_bh = bh_create( world.dynamic_vgl, &bh_system_edges,
 414                                world.grind_edges, world.grind_edge_count,
 415                                2 );
 416 }
 417
 418 VG_STATIC void world_generate(void)
 419 {
 420    /*
 421     * Compile meshes into the world scenes
 422     */
 423    world.scene_geo = scene_init( world.dynamic_vgl, 320000, 1200000 );
 424
 425    m4x3f midentity;
 426    m4x3_identity( midentity );
 427
 428    /*
 429     * Generate scene: collidable geometry
 430     * ----------------------------------------------------------------
 431     */
 432
 433    vg_info( "Generating collidable geometry\n" );
 434
 435
 436    for( int i=0; i<world.material_count; i++ )
 437    {
 438       struct world_material *mat = &world.materials[ i ];
 439
 440       if( mat->info.flags & k_material_flag_collision )
 441          world_add_all_if_material( midentity, world.scene_geo, world.meta, i );
 442
 443       scene_copy_slice( world.scene_geo, &mat->sm_geo );
 444    }
 445
 446
 447
 448
 449    /* compress that bad boy */
 450    world.scene_geo = scene_fix( world.dynamic_vgl, world.scene_geo );
 451
 452    vg_acquire_thread_sync();
 453    {
 454       scene_upload( world.scene_geo, &world.mesh_geo );
 455    }
 456    vg_release_thread_sync();
 457
 458    /* setup spacial mapping and rigidbody */
 459    world.geo_bh = scene_bh_create( world.dynamic_vgl, world.scene_geo );
 460
 461    v3_zero( world.rb_geo.co );
 462    q_identity( world.rb_geo.q );
 463
 464    world.rb_geo.type = k_rb_shape_scene;
 465    world.rb_geo.inf.scene.bh_scene = world.geo_bh;
 466    world.rb_geo.is_world = 1;
 467    rb_init( &world.rb_geo );
 468
 469    /*
 470     * Generate scene: non-collidable geometry
 471     * ----------------------------------------------------------------
 472     */
 473    vg_info( "Generating non-collidable geometry\n" );
 474
 475    world.scene_no_collide = scene_init( world.dynamic_vgl, 200000, 500000 );
 476
 477    for( int i=0; i<world.material_count; i++ )
 478    {
 479       struct world_material *mat = &world.materials[ i ];
 480
 481       if( !(mat->info.flags & k_material_flag_collision) )
 482       {
 483          world_add_all_if_material( midentity, world.scene_no_collide,
 484                                     world.meta, i );
 485       }
 486
 487       if( mat->info.flags & k_material_flag_grow_grass )
 488          world_apply_procedural_foliage( mat );
 489
 490       scene_copy_slice( world.scene_no_collide, &mat->sm_no_collide );
 491    }
 492
 493    /* upload and free that */
 494    vg_acquire_thread_sync();
 495    {
 496       scene_upload( world.scene_no_collide, &world.mesh_no_collide );
 497    }
 498    vg_release_thread_sync();
 499
 500    vg_linear_del( world.dynamic_vgl, world.scene_no_collide );
 501    world.scene_no_collide = NULL;
 502
 503    world_generate_edges();
 504 }
 505
 506 VG_STATIC int reset_player( int argc, char const *argv[] );
 507 VG_STATIC void world_post_process(void)
 508 {
 509    /* initialize audio if need be */
 510    audio_lock();
 511    for( int i=0; i<world.audio_things_count; i++ )
 512    {
 513       struct world_audio_thing *thingy = &world.audio_things[ i ];
 514
 515       audio_player_init( &thingy->player );
 516       audio_player_set_flags( &thingy->player, thingy->flags );
 517       audio_player_set_vol( &thingy->player, thingy->volume );
 518       audio_player_set_pan( &thingy->player, 0.0f );
 519
 520       if( thingy->flags & AUDIO_FLAG_SPACIAL_3D )
 521          audio_player_set_position( &thingy->player, thingy->pos );
 522
 523       if( thingy->flags & AUDIO_FLAG_AUTO_START )
 524          audio_player_playclip( &thingy->player, &thingy->temp_embedded_clip );
 525    }
 526    audio_unlock();
 527
 528    vg_acquire_thread_sync();
 529    {
 530       /*
 531        * Rendering the depth map
 532        */
 533       camera ortho;
 534
 535       v3f extent;
 536       v3_sub( world.scene_geo->bbx[1], world.scene_geo->bbx[0], extent );
 537
 538       float fl = world.scene_geo->bbx[0][0],
 539             fr = world.scene_geo->bbx[1][0],
 540             fb = world.scene_geo->bbx[0][2],
 541             ft = world.scene_geo->bbx[1][2],
 542             rl = 1.0f / (fr-fl),
 543             tb = 1.0f / (ft-fb);
 544
 545       m4x4_zero( ortho.mtx.p );
 546       ortho.mtx.p[0][0] = 2.0f * rl;
 547       ortho.mtx.p[2][1] = 2.0f * tb;
 548       ortho.mtx.p[3][0] = (fr + fl) * -rl;
 549       ortho.mtx.p[3][1] = (ft + fb) * -tb;
 550       ortho.mtx.p[3][3] = 1.0f;
 551       m4x3_identity( ortho.transform );
 552       camera_update_view( &ortho );
 553       camera_finalize( &ortho );
 554
 555       glDisable(GL_DEPTH_TEST);
 556       glDisable(GL_BLEND);
 557       glDisable(GL_CULL_FACE);
 558       render_fb_bind( gpipeline.fb_heightmap );
 559       shader_blitcolour_use();
 560       shader_blitcolour_uColour( (v4f){-9999.0f,-9999.0f,-9999.0f,-9999.0f} );
 561       render_fsquad();
 562
 563       /* todo: hmm?? */
 564       glEnable(GL_BLEND);
 565       glBlendFunc(GL_ONE, GL_ONE);
 566       glBlendEquation(GL_MAX);
 567
 568       render_world_depth( &ortho );
 569       glDisable(GL_BLEND);
 570       glEnable(GL_DEPTH_TEST);
 571       glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 572
 573       /*
 574        * TODO: World settings entity
 575        */
 576       struct ub_world_lighting *winfo = &gpipeline.ub_world_lighting;
 577
 578       if( world.water.enabled )
 579          v4_copy( world.water.plane, winfo->g_water_plane );
 580
 581       v4f info_vec;
 582       v3f *bounds = world.scene_geo->bbx;
 583
 584       info_vec[0] = bounds[0][0];
 585       info_vec[1] = bounds[0][2];
 586       info_vec[2] = 1.0f/ (bounds[1][0]-bounds[0][0]);
 587       info_vec[3] = 1.0f/ (bounds[1][2]-bounds[0][2]);
 588       v4_copy( info_vec, winfo->g_depth_bounds );
 589
 590       winfo->g_water_fog = 0.04f;
 591       render_update_lighting_ub();
 592    }
 593
 594    vg_release_thread_sync();
 595
 596    /*
 597     * Setup scene collider
 598     */
 599
 600    reset_player( 1, (const char *[]){"start"} );
 601 }
 602
 603 VG_STATIC void world_process_resources(void)
 604 {
 605    vg_info( "Loading textures\n" );
 606    world.texture_count = world.meta->info.texture_count;
 607    world.textures =
 608       vg_linear_alloc( world.dynamic_vgl, sizeof(GLuint)*world.texture_count );
 609
 610    vg_acquire_thread_sync();
 611    {
 612       /* error texture */
 613       world.textures[0] = vg_tex2d_new();
 614       vg_tex2d_set_error();
 615       vg_tex2d_nearest();
 616       vg_tex2d_repeat();
 617
 618       for( int i=1; i<world.texture_count; i++ )
 619       {
 620          mdl_texture *tex = &world.meta->texture_buffer[i];
 621
 622          if( !tex->pack_offset )
 623          {
 624             vg_release_thread_sync();
 625             vg_fatal_exit_loop( "World models must have packed textures!" );
 626          }
 627
 628          vg_linear_clear( vg_mem.scratch );
 629          world.textures[i] = vg_tex2d_new();
 630          vg_tex2d_set_error();
 631          vg_tex2d_qoi( world.meta->pack + tex->pack_offset, tex->pack_length,
 632                        mdl_pstr( world.meta, tex->pstr_name ));
 633          vg_tex2d_nearest();
 634          vg_tex2d_repeat();
 635       }
 636    }
 637    vg_release_thread_sync();
 638
 639    vg_info( "Loading materials\n" );
 640
 641    u32 size = sizeof(struct world_material) * world.meta->info.material_count;
 642    world.materials = vg_linear_alloc( world.dynamic_vgl, size );
 643
 644    world.material_count = world.meta->info.material_count;
 645    memset( world.materials, 0, size );
 646
 647    for( int i=1; i<world.material_count; i++ )
 648       world.materials[i].info = world.meta->material_buffer[i];
 649
 650    /* error material */
 651    struct world_material *errmat = &world.materials[0];
 652    v4_copy( (v4f){ 1.0f,0.0f,0.0f,1.0f }, errmat->info.colour );
 653    v4_copy( (v4f){ 1.0f,0.0f,0.0f,1.0f }, errmat->info.colour1 );
 654    errmat->info.flags = 0x00;
 655    errmat->info.pstr_name = 0; /* useless? */
 656    errmat->info.shader = -1;
 657    errmat->info.tex_decal = 0;
 658    errmat->info.tex_diffuse = 0;
 659    errmat->info.tex_normal = 0;
 660 }
 661
 662 VG_STATIC void world_unload(void)
 663 {
 664    vg_acquire_thread_sync();
 665
 666    /* free meshes */
 667    mesh_free( &world.mesh_route_lines );
 668    mesh_free( &world.mesh_geo );
 669    mesh_free( &world.mesh_no_collide );
 670
 671    world.time = 0.0;
 672    world.rewind_from = 0.0;
 673    world.rewind_to = 0.0;
 674    world.last_use = 0.0;
 675    world.active_gate = 0;
 676    world.current_run_version = 2;
 677    world.active_route_board = 0;
 678    v3_zero( world.render_gate_pos );
 679
 680    for( int i=0; i<vg_list_size(world.ui_bars); i++ )
 681    {
 682       struct route_ui_bar *uib = &world.ui_bars[i];
 683       uib->segment_start = 0;
 684       uib->segment_count = 0;
 685       uib->fade_start = 0;
 686       uib->fade_count = 0;
 687       uib->fade_timer_start = 0.0;
 688       uib->xpos = 0.0f;
 689    }
 690
 691    /* delete textures and meshes */
 692    glDeleteTextures( world.texture_count, world.textures );
 693
 694    /* delete the entire block of memory */
 695    vg_linear_clear( world.dynamic_vgl );
 696    vg_linear_clear( world.audio_vgl );
 697
 698    /* clean dangling pointers */
 699    world.meta = NULL;
 700
 701    world.textures = NULL;
 702    world.texture_count = 0;
 703    world.materials = NULL;
 704    world.material_count = 0;
 705
 706    world.scene_geo = NULL;
 707    world.scene_no_collide = NULL;
 708    world.scene_lines = NULL;
 709    world.grind_edges = NULL;
 710    world.grind_edge_count = 0;
 711
 712    world.grind_bh = NULL;
 713    world.geo_bh = NULL;
 714    world.trigger_bh = NULL;
 715    world.audio_bh = NULL;
 716
 717    world.spawns = NULL;
 718    world.spawn_count = 0;
 719
 720    world.audio_things = NULL;
 721    world.audio_things_count = 0;
 722
 723    world.triggers = NULL;
 724    world.trigger_count = 0;
 725
 726    world.logic_relays = NULL;
 727    world.relay_count = 0;
 728
 729    world.logic_achievements = NULL;
 730    world.achievement_count = 0;
 731
 732    world.nodes = NULL;
 733    world.node_count = 0;
 734
 735    world.routes = NULL;
 736    world.route_count = 0;
 737
 738    world.gates = NULL;
 739    world.gate_count = 0;
 740
 741    world.collectors = NULL;
 742    world.collector_count = 0;
 743
 744    world.water.enabled = 0;
 745
 746    vg_release_thread_sync();
 747 }
 748
 749 VG_STATIC void world_load(void)
 750 {
 751    world_unload();
 752
 753    world.meta = mdl_load_full( world.dynamic_vgl, world.world_name );
 754    vg_info( "Loading world: %s\n", world.world_name );
 755
 756    /* process resources from pack */
 757    world_process_resources();
 758
 759    /* dynamic allocations */
 760    world_ents_allocate();
 761    world_routes_allocate();
 762
 763    /* meta processing */
 764    world_routes_process();
 765    world_entities_process();
 766
 767    /* main bulk */
 768    world_generate();
 769    world_routes_generate();
 770    world_post_process();
 771 }
 772
 773 #endif /* WORLD_GEN_H */