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) ) {
 122          gate_transform_update( gate );
 123       }
 124    }
 125
 126    vg_async_call( world_link_nonlocal_async, world, 0 );
 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    else if( call->function == k_ent_function_trigger_leave ){
 290       call->id = volume->target;
 291
 292       if( volume->flags & k_ent_volume_flag_particles ){
 293          assert(0);
 294       }
 295       else{
 296          call->function = volume->trigger.event_leave;
 297          entity_call( world, call );
 298       }
 299    }
 300 }
 301
 302 static void ent_audio_call( world_instance *world, ent_call *call ){
 303    if( world->status == k_world_status_unloading ){
 304       vg_warn( "cannot modify audio while unloading world\n" );
 305       return;
 306    }
 307
 308    u8 world_id = (world - world_static.instances) + 1;
 309    u32 index = mdl_entity_id_id( call->id );
 310    ent_audio *audio = mdl_arritm( &world->ent_audio, index );
 311
 312    v3f sound_co;
 313
 314    if( call->function == k_ent_function_particle_spawn ){
 315       v3_copy( call->data, sound_co );
 316    }
 317    else if( call->function == k_ent_function_trigger ){
 318       v3_copy( audio->transform.co, sound_co );
 319    }
 320    else
 321       return;
 322
 323    float chance = vg_randf64()*100.0f,
 324          bar = 0.0f;
 325
 326    for( u32 i=0; i<audio->clip_count; i++ ){
 327       ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip,
 328                                           audio->clip_start+i );
 329
 330       float mod = world->probabilities[ audio->probability_curve ],
 331             p   = clip->probability * mod;
 332
 333       bar += p;
 334       if( chance < bar ){
 335          audio_lock();
 336
 337          if( audio->behaviour == k_channel_behaviour_unlimited ){
 338             audio_oneshot_3d( &clip->_.clip, sound_co,
 339                               audio->transform.s[0],
 340                               audio->volume );
 341          }
 342          else if( audio->behaviour == k_channel_behaviour_discard_if_full ){
 343             audio_channel *ch =
 344                audio_get_group_idle_channel( audio->group,
 345                                              audio->max_channels );
 346
 347             if( ch ){
 348                audio_channel_init( ch, &clip->_.clip, audio->flags );
 349                audio_channel_group( ch, audio->group );
 350                audio_channel_world( ch, world_id );
 351                audio_channel_set_spacial( ch, sound_co, audio->transform.s[0] );
 352                audio_channel_edit_volume( ch, audio->volume, 1 );
 353                ch = audio_relinquish_channel( ch );
 354             }
 355          }
 356          else if( audio->behaviour == k_channel_behaviour_crossfade_if_full){
 357             audio_channel *ch =
 358                audio_get_group_idle_channel( audio->group,
 359                                              audio->max_channels );
 360
 361             /* group is full */
 362             if( !ch ){
 363                audio_channel *existing =
 364                   audio_get_group_first_active_channel( audio->group );
 365
 366                if( existing ){
 367                   if( existing->source == &clip->_.clip ){
 368                      audio_unlock();
 369                      return;
 370                   }
 371
 372                   existing->group = 0;
 373                   existing = audio_channel_fadeout(existing, audio->crossfade);
 374                }
 375
 376                ch = audio_get_first_idle_channel();
 377             }
 378
 379             if( ch ){
 380                audio_channel_init( ch, &clip->_.clip, audio->flags );
 381                audio_channel_group( ch, audio->group );
 382                audio_channel_world( ch, world_id );
 383                audio_channel_fadein( ch, audio->crossfade );
 384                ch = audio_relinquish_channel( ch );
 385             }
 386          }
 387
 388          audio_unlock();
 389          return;
 390       }
 391    }
 392 }
 393
 394
 395 static void ent_ccmd_call( world_instance *world, ent_call *call ){
 396    if( call->function == k_ent_function_trigger ){
 397       u32 index = mdl_entity_id_id( call->id );
 398       ent_ccmd *ccmd = mdl_arritm( &world->ent_ccmd, index );
 399       vg_execute_console_input( mdl_pstr(&world->meta, ccmd->pstr_command) );
 400    }
 401 }
 402
 403 /*
 404  * BVH implementation
 405  * ----------------------------------------------------------------------------
 406  */
 407
 408 static void
 409 entity_bh_expand_bound( void *user, boxf bound, u32 item_index ){
 410    world_instance *world = user;
 411
 412    u32 id    = world->entity_list[ item_index ],
 413        type  = mdl_entity_id_type( id ),
 414        index = mdl_entity_id_id( id );
 415
 416    if( type == k_ent_gate ){
 417       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 418       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 419                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 420
 421       m4x3_expand_aabb_aabb( gate->to_world, bound, box );
 422    }
 423    else if( type == k_ent_objective ){
 424       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 425
 426       /* TODO: This might be more work than necessary. could maybe just get
 427        *       away with representing them as points */
 428
 429       boxf box;
 430       box_init_inf( box );
 431
 432       for( u32 i=0; i<objective->submesh_count; i++ ){
 433          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 434                                        objective->submesh_start+i );
 435          box_concat( box, sm->bbx );
 436       }
 437
 438       m4x3f transform;
 439       mdl_transform_m4x3( &objective->transform, transform );
 440       m4x3_expand_aabb_aabb( transform, bound, box );
 441    }
 442    else if( type == k_ent_volume ){
 443       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 444       m4x3_expand_aabb_aabb( volume->to_world, bound,
 445                               (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}} );
 446    }
 447    else if( type == k_ent_challenge ){
 448       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 449
 450       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 451                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 452       m4x3f transform;
 453       mdl_transform_m4x3( &challenge->transform, transform );
 454       m4x3_expand_aabb_aabb( transform, bound, box );
 455    }
 456    else{
 457       vg_fatal_error( "Programming error\n" );
 458    }
 459 }
 460
 461 static float entity_bh_centroid( void *user, u32 item_index, int axis ){
 462    world_instance *world = user;
 463
 464    u32 id    = world->entity_list[ item_index ],
 465        type  = mdl_entity_id_type( id ),
 466        index = mdl_entity_id_id( id );
 467
 468    if( type == k_ent_gate ){
 469       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 470       return gate->to_world[3][axis];
 471    }
 472    else if( type == k_ent_objective ){
 473       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 474       return objective->transform.co[axis];
 475    }
 476    else if( type == k_ent_volume ){
 477       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 478       return volume->transform.co[axis];
 479    }
 480    else if( type == k_ent_challenge ){
 481       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 482       return challenge->transform.co[axis];
 483    }
 484    else {
 485       vg_fatal_error( "Programming error\n" );
 486       return INFINITY;
 487    }
 488 }
 489
 490 static void entity_bh_swap( void *user, u32 ia, u32 ib ){
 491    world_instance *world = user;
 492
 493    u32 a = world->entity_list[ ia ],
 494        b = world->entity_list[ ib ];
 495
 496    world->entity_list[ ia ] = b;
 497    world->entity_list[ ib ] = a;
 498 }
 499
 500 static void entity_bh_debug( void *user, u32 item_index ){
 501    world_instance *world = user;
 502
 503    u32 id    = world->entity_list[ item_index ],
 504        type  = mdl_entity_id_type( id ),
 505        index = mdl_entity_id_id( id );
 506
 507    if( type == k_ent_gate ){
 508       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 509       boxf box = {{ -gate->dimensions[0], -gate->dimensions[1], -0.1f },
 510                   {  gate->dimensions[0],  gate->dimensions[1],  0.1f }};
 511       vg_line_boxf_transformed( gate->to_world, box, 0xf000ff00 );
 512    }
 513    else if( type == k_ent_objective ){
 514       ent_objective *objective = mdl_arritm( &world->ent_objective, index );
 515       boxf box;
 516       box_init_inf( box );
 517
 518       for( u32 i=0; i<objective->submesh_count; i++ ){
 519          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 520                                        objective->submesh_start+i );
 521          box_concat( box, sm->bbx );
 522       }
 523
 524       m4x3f transform;
 525       mdl_transform_m4x3( &objective->transform, transform );
 526       vg_line_boxf_transformed( transform, box, 0xf000ff00 );
 527    }
 528    else if( type == k_ent_volume ){
 529       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 530       vg_line_boxf_transformed( volume->to_world,
 531                                 (boxf){{-1.0f,-1.0f,-1.0f},{ 1.0f, 1.0f, 1.0f}},
 532                                 0xf000ff00 );
 533    }
 534    else if( type == k_ent_challenge ){
 535       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 536
 537       boxf box = {{-1.2f*0.5f,-0.72f*0.5f,-0.01f*0.5f},
 538                   { 1.2f*0.5f, 0.72f*0.5f, 0.01f*0.5f}};
 539       m4x3f transform;
 540       mdl_transform_m4x3( &challenge->transform, transform );
 541       vg_line_boxf_transformed( transform, box, 0xf0ff0000 );
 542    }
 543    else{
 544       vg_fatal_error( "Programming error\n" );
 545    }
 546 }
 547
 548 static void entity_bh_closest( void *user, u32 item_index, v3f point,
 549                                   v3f closest ){
 550    world_instance *world = user;
 551
 552    u32 id    = world->entity_list[ item_index ],
 553        type  = mdl_entity_id_type( id ),
 554        index = mdl_entity_id_id( id );
 555
 556    if( type == k_ent_gate ){
 557       ent_gate *gate = mdl_arritm( &world->ent_gate, index );
 558       v3_copy( gate->to_world[3], closest );
 559    }
 560    else if( type == k_ent_objective ){
 561       ent_objective *challenge = mdl_arritm( &world->ent_objective, index );
 562       v3_copy( challenge->transform.co, closest );
 563    }
 564    else if( type == k_ent_volume ){
 565       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
 566       v3_copy( volume->to_world[3], closest );
 567    }
 568    else if( type == k_ent_challenge ){
 569       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, index );
 570       v3_copy( challenge->transform.co, closest );
 571    }
 572    else{
 573       vg_fatal_error( "Programming error\n" );
 574    }
 575 }
 576
 577 static void world_entity_start( world_instance *world, vg_msg *sav ){
 578    vg_info( "Start instance %p\n", world );
 579
 580    world->probabilities[ k_probability_curve_constant ] = 1.0f;
 581    for( u32 i=0; i<mdl_arrcount(&world->ent_audio); i++ ){
 582       ent_audio *audio = mdl_arritm(&world->ent_audio,i);
 583       if( audio->flags & AUDIO_FLAG_AUTO_START ){
 584          ent_call call;
 585          call.data = NULL;
 586          call.function = k_ent_function_trigger;
 587          call.id = mdl_entity_id( k_ent_audio, i );
 588          entity_call( world, &call );
 589       }
 590    }
 591
 592    /* read savedata
 593     * ----------------------------------------------------------------------- */
 594
 595    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 596       ent_challenge *challenge = mdl_arritm( &world->ent_challenge, i );
 597       const char *alias = mdl_pstr( &world->meta, challenge->pstr_alias );
 598
 599       if( vg_msg_getkvu32( sav, alias, 0 ) ){
 600          ent_call call;
 601          call.data = NULL;
 602          call.function = 0;
 603          call.id = mdl_entity_id( k_ent_challenge, i );
 604          entity_call( world, &call );
 605       }
 606    }
 607 }
 608
 609 static void world_entity_serialize( world_instance *world, vg_msg *sav ){
 610    for( u32 i=0; i<mdl_arrcount(&world->ent_challenge); i++ ){
 611       ent_challenge *challenge = mdl_arritm(&world->ent_challenge,i);
 612
 613       const char *alias = mdl_pstr(&world->meta,challenge->pstr_alias);
 614       vg_msg_wkvu32( sav, alias, challenge->status );
 615    }
 616 }
 617
 618 #endif /* WORLD_ENTITY_C */