player_remote.c

   1 #include "player_remote.h"
   2 #include "skeleton.h"
   3 #include "player_render.h"
   4 #include "network_common.h"
   5 #include "addon.h"
   6 #include "font.h"
   7 #include "gui.h"
   8
   9 static void player_remote_clear( struct network_player *player ){
  10    addon_cache_unwatch( k_addon_type_player, player->playermodel_view_slot );
  11    addon_cache_unwatch( k_addon_type_board, player->board_view_slot );
  12
  13    memset( player, 0, sizeof(*player) );
  14    strcpy( player->username, "unknown" );
  15    player->subsystem = k_player_subsystem_invalid;
  16 }
  17
  18 /*
  19  * re-attatches addon_reg pointers on the remote client if we have the same
  20  * world loaded.
  21  */
  22 static void relink_remote_player_worlds( u32 client_id ){
  23    struct network_player *player = &netplayers.list[client_id];
  24
  25    addon_alias q[2];
  26    addon_uid_to_alias( player->items[k_netmsg_playeritem_world0], &q[0] );
  27    addon_uid_to_alias( player->items[k_netmsg_playeritem_world1], &q[1] );
  28
  29    /*
  30     * currently in 10.23, the hub world will always be the same.
  31     * this might but probably wont change in the future
  32     */
  33    for( u32 i=0; i<k_world_max; i++ ){
  34       addon_reg *reg = world_static.instance_addons[ i ];
  35
  36       player->world_match[i] = 0;
  37
  38       if( reg ){
  39          if( addon_alias_eq( &q[i], &world_static.instance_addons[i]->alias ) )
  40             player->world_match[i] = 1;
  41       }
  42    }
  43 }
  44
  45 /*
  46  * re-attatches addon_reg pointers on the remote client if we have the mod
  47  * installed locally.
  48  *
  49  * Run if local worlds change
  50  */
  51 static void relink_all_remote_player_worlds(void){
  52    for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
  53       struct network_player *player = &netplayers.list[i];
  54       if( player->active )
  55          relink_remote_player_worlds(i);
  56    }
  57 }
  58
  59 static void player_remote_rx_200_300( SteamNetworkingMessage_t *msg ){
  60    netmsg_blank *tmp = msg->m_pData;
  61
  62    if( tmp->inetmsg_id == k_inetmsg_playerjoin ){
  63       netmsg_playerjoin *playerjoin = msg->m_pData;
  64       if( !packet_minsize( msg, sizeof(*playerjoin) )) return;
  65
  66       if( playerjoin->index < vg_list_size(netplayers.list) ){
  67          struct network_player *player = &netplayers.list[ playerjoin->index ];
  68          player_remote_clear( player );
  69          player->active = 1;
  70
  71          /* TODO: interpret the uids */
  72          player->board_view_slot = 0;
  73          player->playermodel_view_slot = 0;
  74
  75          struct interp_buffer *buf = &netplayers.interp_data[playerjoin->index];
  76          buf->t = -99999999.9;
  77          for( u32 i=0; i<vg_list_size(buf->frames); i ++ ){
  78             buf->frames[i].active = 0;
  79          }
  80
  81          vg_info( "#%u joined\n", playerjoin->index );
  82       }
  83       else {
  84          vg_error( "inetmsg_playerjoin: player index out of range\n" );
  85       }
  86    }
  87    else if( tmp->inetmsg_id == k_inetmsg_playerleave ){
  88       netmsg_playerleave *playerleave = msg->m_pData;
  89       if( !packet_minsize( msg, sizeof(*playerleave) )) return;
  90
  91       if( playerleave->index < vg_list_size(netplayers.list) ){
  92          struct network_player *player = &netplayers.list[ playerleave->index ];
  93          player_remote_clear( player );
  94          player->active = 0;
  95          vg_info( "player leave (%d)\n", playerleave->index );
  96       }
  97       else {
  98          vg_error( "inetmsg_playerleave: player index out of range\n" );
  99       }
 100    }
 101    else if( tmp->inetmsg_id == k_inetmsg_playerusername ){
 102       netmsg_playerusername *update = msg->m_pData;
 103       if( !packet_minsize( msg, sizeof(*update) )) return;
 104
 105       if( update->index < vg_list_size(netplayers.list) ){
 106          struct network_player *player = &netplayers.list[ update->index ];
 107
 108          network_msgstring( update->name, msg->m_cbSize, sizeof(*update),
 109                             player->username, sizeof(player->username) );
 110
 111          vg_info( "#%u changed username to: %s\n",
 112                   update->index, player->username );
 113       }
 114       else {
 115          vg_error( "inetmsg_playerleave: player index out of range\n" );
 116       }
 117    }
 118    else if( tmp->inetmsg_id == k_inetmsg_playerframe ){
 119       u32 datasize = msg->m_cbSize - sizeof(netmsg_playerframe);
 120
 121       if( datasize > sizeof(union interp_animdata) ){
 122          vg_error( "Player frame data exceeds animdata size\n" );
 123          return;
 124       }
 125
 126       netmsg_playerframe *frame = msg->m_pData;
 127       if( frame->client >= vg_list_size(netplayers.list) ){
 128          vg_error( "inetmsg_playerframe: player index out of range\n" );
 129          return;
 130       }
 131
 132       if( frame->subsystem >= k_player_subsystem_max ){
 133          vg_error( "inetmsg_playerframe: subsystem out of range\n" );
 134          return;
 135       }
 136
 137       struct interp_buffer *ib = &netplayers.interp_data[ frame->client ];
 138       struct interp_frame *dest = NULL;
 139
 140       f64 min_time = INFINITY;
 141       for( u32 i=0; i<vg_list_size(ib->frames); i++ ){
 142          struct interp_frame *ifr = &ib->frames[i];
 143
 144          if( !ifr->active ){
 145             dest = ifr;
 146             break;
 147          }
 148
 149          if( ifr->timestamp < min_time ){
 150             min_time = ifr->timestamp;
 151             dest = ifr;
 152          }
 153       }
 154
 155       dest->active = 1;
 156       dest->subsystem = frame->subsystem;
 157       dest->instance_id = frame->instance_id;
 158
 159       bitpack_ctx ctx = {
 160          .mode = k_bitpack_decompress,
 161          .buffer = frame->animdata,
 162          .buffer_len = datasize,
 163          .bytes = 0,
 164       };
 165
 166
 167       /* sfx
 168        * -------------------------------------------------------------*/
 169
 170       for( u32 i=0; i<frame->sound_effects; i ++ ){
 171          struct net_sfx sfx;
 172          net_sfx_exchange( &ctx, &sfx );
 173
 174          f64 t = (frame->timestamp - NETWORK_FRAMERATE) +
 175                  (sfx.subframe*NETWORK_FRAMERATE);
 176
 177          f32 remaining = t - ib->t;
 178
 179          if( remaining <= 0.0f )
 180             net_sfx_play( &sfx );
 181          else{
 182             struct net_sfx *dst = NULL;
 183
 184             for( u32 j=0; j<NETWORK_SFX_QUEUE_LENGTH; j ++ ){
 185                struct net_sfx *sj = &netplayers.sfx_queue[j];
 186                if( sj->system == k_player_subsystem_invalid ){
 187                   dst = sj;
 188                   break;
 189                }
 190
 191                if( sj->priority < sfx.priority )
 192                   dst = sj;
 193             }
 194
 195             *dst = sfx;
 196             dst->subframe = remaining;
 197          }
 198       }
 199
 200       /* animation
 201        * -------------------------------------------------------------*/
 202
 203       dest->timestamp = frame->timestamp;
 204       dest->boundary_hash = frame->boundary_hash;
 205
 206       struct network_player *player = &netplayers.list[ frame->client ];
 207       struct player_subsystem_interface *sys =
 208          player_subsystems[ frame->subsystem ];
 209
 210       if( sys->network_animator_exchange ){
 211          memset( &dest->data, 0, sys->animator_size );
 212          sys->network_animator_exchange( &ctx, &dest->data );
 213       }
 214       else {
 215          bitpack_bytes( &ctx, sys->animator_size, sys->animator_data );
 216       }
 217
 218       player->subsystem = frame->subsystem;
 219       player->down_bytes += msg->m_cbSize;
 220    }
 221    else if( tmp->inetmsg_id == k_inetmsg_playeritem ){
 222       netmsg_playeritem *item = msg->m_pData;
 223       if( !packet_minsize( msg, sizeof(*item)+1 )) return;
 224
 225       if( item->client >= vg_list_size(netplayers.list) ){
 226          vg_error( "inetmsg_playerframe: player index out of range\n" );
 227          return;
 228       }
 229
 230       if( item->type_index >= k_netmsg_playeritem_max ){
 231          vg_warn( "Client #%d invalid equip type %u\n",
 232                   (i32)item->client, (u32)item->type_index );
 233          return;
 234       }
 235
 236       vg_info( "Client #%d equiped: [%s] %s\n",
 237                item->client,
 238                (const char *[]){[k_netmsg_playeritem_board]="board",
 239                                 [k_netmsg_playeritem_player]="player",
 240                                 [k_netmsg_playeritem_world0]="world0",
 241                                 [k_netmsg_playeritem_world1]="world1"
 242                }[item->type_index], item->uid );
 243
 244       struct network_player *player = &netplayers.list[ item->client ];
 245       char *uid = player->items[ item->type_index ];
 246
 247       network_msgstring( item->uid, msg->m_cbSize, sizeof(*item),
 248                          uid, ADDON_UID_MAX );
 249
 250       if( item->type_index == k_netmsg_playeritem_board ){
 251          addon_cache_unwatch( k_addon_type_board, player->board_view_slot );
 252          player->board_view_slot =
 253             addon_cache_create_viewer_from_uid( k_addon_type_board, uid );
 254       }
 255       else if( item->type_index == k_netmsg_playeritem_player ){
 256          addon_cache_unwatch( k_addon_type_player,
 257                               player->playermodel_view_slot );
 258          player->playermodel_view_slot =
 259             addon_cache_create_viewer_from_uid( k_addon_type_player, uid );
 260       }
 261       else if( (item->type_index == k_netmsg_playeritem_world0) ||
 262                (item->type_index == k_netmsg_playeritem_world1) ){
 263          relink_remote_player_worlds( item->client );
 264       }
 265    }
 266 }
 267
 268 /*
 269  * Write localplayer pose to network
 270  */
 271 static void remote_player_send_playerframe(void){
 272    u8 sysid = localplayer.subsystem;
 273    if( sysid >= k_player_subsystem_max ) return;
 274
 275    struct player_subsystem_interface *sys = player_subsystems[sysid];
 276
 277    if( sys->animator_size ){
 278       u32 max_buf_size = sys->animator_size + sizeof(localplayer.sfx_buffer),
 279           base_size = sizeof(struct netmsg_playerframe),
 280           max_packet = base_size + max_buf_size;
 281
 282       netmsg_playerframe *frame = alloca( max_packet );
 283       frame->inetmsg_id = k_inetmsg_playerframe;
 284       frame->client = 0xff;
 285       frame->subsystem = localplayer.subsystem;
 286       frame->instance_id = world_static.active_instance;
 287
 288       bitpack_ctx ctx = {
 289          .mode = k_bitpack_compress,
 290          .buffer = frame->animdata,
 291          .buffer_len = max_buf_size,
 292          .bytes = 0
 293       };
 294
 295       /* sfx
 296        * ---------------------------------------------*/
 297
 298       frame->sound_effects = localplayer.sfx_buffer_count;
 299       for( u32 i=0; i<localplayer.sfx_buffer_count; i ++ )
 300          net_sfx_exchange( &ctx, &localplayer.sfx_buffer[i] );
 301
 302       /* animation
 303        * -----------------------------------------------*/
 304
 305       frame->timestamp = vg.time_real;
 306       frame->boundary_hash = localplayer.boundary_hash;
 307       if( sys->network_animator_exchange )
 308          sys->network_animator_exchange( &ctx, sys->animator_data );
 309       else
 310          bitpack_bytes( &ctx, sys->animator_size, sys->animator_data );
 311
 312       u32 wire_size = base_size + ctx.bytes;
 313       netplayers.up_bytes += wire_size;
 314
 315       SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 316             hSteamNetworkingSockets, network_client.remote,
 317             frame, wire_size,
 318             k_nSteamNetworkingSend_Unreliable, NULL );
 319    }
 320 }
 321
 322 /*
 323  * Updates network traffic stats
 324  */
 325 static void remote_player_debug_update(void){
 326    if( (vg.time_real - netplayers.last_data_measurement) > 1.0 ){
 327       netplayers.last_data_measurement = vg.time_real;
 328       u32 total_down = 0;
 329
 330       for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
 331          struct network_player *player = &netplayers.list[i];
 332          if( player->active ){
 333             total_down += player->down_bytes;
 334             player->down_kbs = ((f32)player->down_bytes)/1024.0f;
 335             player->down_bytes = 0;
 336          }
 337       }
 338
 339       netplayers.down_kbs = ((f32)total_down)/1024.0f;
 340       netplayers.up_kbs = ((f32)netplayers.up_bytes)/1024.0f;
 341       netplayers.up_bytes = 0;
 342    }
 343 }
 344
 345 static void remote_player_nametag( m4x4f pv, v3f co, const char *name ){
 346    return;
 347    vg_ui.font = &vg_ui_font_big;
 348    v4f wpos;
 349    v3_copy( co, wpos );
 350    wpos[1] += 2.0f;
 351    wpos[3] = 1.0f;
 352
 353    m4x4_mulv( pv, wpos, wpos );
 354
 355    if( wpos[3] > 0.0f ){
 356       v2_muls( wpos, (1.0f/wpos[3]) * 0.5f, wpos );
 357       v2_add( wpos, (v2f){ 0.5f, 0.5f }, wpos );
 358
 359       ui_rect wr;
 360       wr[0] = vg_clampf(wpos[0] * vg.window_x, -32000.0f,32000.0f)-150;
 361       wr[1] = vg_clampf((1.0f-wpos[1]) * vg.window_y,
 362                         -32000.0f,32000.0f);
 363       wr[2] = 300;
 364       wr[3] = 32;
 365       ui_fill( wr, (ui_colour(k_ui_bg)&0x00ffffff)|0x50000000 );
 366       ui_text( wr, name, 1, k_ui_align_middle_center, 0 );
 367    }
 368    vg_ui.font = &vg_ui_font_small;
 369 }
 370
 371 /*
 372  * Debugging information
 373  */
 374 static void remote_player_network_imgui( m4x4f pv ){
 375    if( !network_client.network_info )
 376       return;
 377
 378    ui_rect panel = { (vg.window_x / 2) - 200, 0, 400, 600 };
 379    ui_fill( panel, (ui_colour(k_ui_bg)&0x00ffffff)|0x50000000 );
 380
 381    char buf[512];
 382    const char *netstatus = "PROGRAMMING ERROR";
 383
 384    struct { enum ESteamNetworkingConnectionState state; const char *str; }
 385    states[] = {
 386            { k_ESteamNetworkingConnectionState_None, "None" },
 387            { k_ESteamNetworkingConnectionState_Connecting,
 388          (const char *[]){"Connecting -",
 389                           "Connecting /",
 390                           "Connecting |",
 391                           "Connecting \\",
 392                           }[(u32)(vg.time_real/0.25) & 0x3 ] },
 393            { k_ESteamNetworkingConnectionState_FindingRoute, "Finding Route" },
 394            { k_ESteamNetworkingConnectionState_Connected, "Connected" },
 395            { k_ESteamNetworkingConnectionState_ClosedByPeer, "Closed by peer" },
 396            { k_ESteamNetworkingConnectionState_ProblemDetectedLocally,
 397          "Problem Detected Locally" },
 398            { k_ESteamNetworkingConnectionState_FinWait, "Fin Wait" },
 399            { k_ESteamNetworkingConnectionState_Linger, "Linger" },
 400            { k_ESteamNetworkingConnectionState_Dead, "Dead" }
 401    };
 402    for( u32 i=0; i<vg_list_size(states); i ++ ){
 403       if( states[i].state == network_client.state ){
 404          netstatus = states[i].str;
 405          break;
 406       }
 407    }
 408    snprintf( buf, 512, "Network: %s", netstatus );
 409    ui_info( panel, buf );
 410    ui_info( panel, "---------------------" );
 411
 412    if( network_client.state == k_ESteamNetworkingConnectionState_Connected ){
 413       ui_info( panel, "#-1: localplayer" );
 414
 415       snprintf( buf, 512, "U%.3f/D%.3fkbs",
 416                 netplayers.up_kbs, netplayers.down_kbs );
 417       ui_info( panel, buf );
 418
 419       for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
 420          struct network_player *player = &netplayers.list[i];
 421          if( player->active ){
 422             const char *sysname = "invalid";
 423
 424             if( player->subsystem < k_player_subsystem_max ){
 425                sysname = player_subsystems[ player->subsystem ]->name;
 426             }
 427             snprintf( buf, 512, "#%u: %s [%s] D%.1fkbs",
 428                       i, player->username, sysname, player->down_kbs );
 429             ui_info( panel, buf );
 430
 431             struct player_avatar *av = localplayer.playeravatar;
 432             remote_player_nametag(
 433                   pv,
 434                   netplayers.final_mtx[av->sk.bone_count*i][3],
 435                   player->username );
 436          }
 437       }
 438    }
 439    else {
 440       ui_info( panel, "offline" );
 441    }
 442
 443    struct player_avatar *av = localplayer.playeravatar;
 444    remote_player_nametag(
 445          pv,
 446          localplayer.final_mtx[0][3],
 447          "Localplayer" );
 448 }
 449
 450 /*
 451  * write the remote players final_mtx
 452  */
 453 static void pose_remote_player( u32 index,
 454                                 struct interp_frame *f0,
 455                                 struct interp_frame *f1 ){
 456
 457    struct network_player *player = &netplayers.list[ index ];
 458
 459    struct interp_buffer *buf = &netplayers.interp_data[ index ];
 460    struct player_avatar *av = localplayer.playeravatar;
 461    m4x3f *final_mtx = &netplayers.final_mtx[ av->sk.bone_count*index ];
 462    struct player_board_pose *board_pose = &netplayers.board_poses[index];
 463
 464    struct player_subsystem_interface *sys0 = player_subsystems[f0->subsystem],
 465                                      *sys1 = NULL;
 466
 467    player_pose pose0, pose1, posed;
 468    sys0->pose( &f0->data, &pose0 );
 469
 470    u8 instance_id = 0;
 471
 472    if( f1 ){
 473       f32 t = (buf->t - f0->timestamp) / (f1->timestamp - f0->timestamp);
 474           t = vg_clampf( t, 0.0f, 1.0f );
 475
 476       sys1 = player_subsystems[f1->subsystem];
 477       sys1->pose( &f1->data, &pose1 );
 478
 479       u16 bounds = f0->boundary_hash^f1->boundary_hash;
 480
 481       if( bounds & NETMSG_BOUNDARY_BIT )
 482          t = 1.0f;
 483
 484       if( bounds & NETMSG_GATE_BOUNDARY_BIT ){
 485          /* TODO: Extra work retransforming the root_co, instance_id.. etc */
 486          t = 1.0f;
 487       }
 488
 489       instance_id = f1->instance_id;
 490
 491       lerp_player_pose( &pose0, &pose1, t, &posed );
 492       apply_full_skeleton_pose( &av->sk, &posed, final_mtx );
 493       memcpy( board_pose, &posed.board, sizeof(*board_pose) );
 494    }
 495    else {
 496       instance_id = f0->instance_id;
 497
 498       apply_full_skeleton_pose( &av->sk, &pose0, final_mtx );
 499       memcpy( board_pose, &pose0.board, sizeof(*board_pose) );
 500    }
 501
 502    if( player->world_match[ instance_id ] )
 503       player->active_world = &world_static.instances[ instance_id ];
 504 }
 505
 506 /*
 507  * animate remote player and store in final_mtx
 508  */
 509 static void animate_remote_player( u32 index ){
 510
 511    /*
 512     * Trys to keep the cursor inside the buffer
 513     */
 514    f64 min_time = -999999999.9,
 515        max_time =  999999999.9,
 516        abs_max_time = -999999999.9;
 517
 518    struct interp_frame *minframe = NULL,
 519                        *maxframe = NULL,
 520                        *abs_max_frame = NULL;
 521
 522    struct interp_buffer *buf = &netplayers.interp_data[index];
 523    for( u32 i=0; i<vg_list_size(buf->frames); i ++ ){
 524       struct interp_frame *ifr = &buf->frames[i];
 525
 526       if( ifr->active ){
 527          if( (ifr->timestamp > min_time) && (ifr->timestamp < buf->t) ){
 528             min_time = ifr->timestamp;
 529             minframe = ifr;
 530          }
 531
 532          if( (ifr->timestamp < max_time) && (ifr->timestamp > buf->t) ){
 533             max_time = ifr->timestamp;
 534             maxframe = ifr;
 535          }
 536
 537          if( ifr->timestamp > abs_max_time ){
 538             abs_max_time = ifr->timestamp;
 539             abs_max_frame = ifr;
 540          }
 541       }
 542    }
 543
 544    struct network_player *player = &netplayers.list[ index ];
 545    player->active_world = NULL;
 546
 547    if( minframe && maxframe ){
 548       pose_remote_player( index, minframe, maxframe );
 549       buf->t += vg.time_frame_delta;
 550    }
 551    else {
 552       buf->t = abs_max_time - 0.25;
 553
 554       if( abs_max_frame )
 555          pose_remote_player( index, abs_max_frame, NULL );
 556       else
 557          return;
 558    }
 559 }
 560
 561 /*
 562  * Update full final_mtx for all remote players
 563  */
 564 static void animate_remote_players(void){
 565    for( u32 i=0; i<vg_list_size(netplayers.list); i ++ ){
 566       struct network_player *player = &netplayers.list[i];
 567       if( !player->active ) continue;
 568
 569       animate_remote_player( i );
 570    }
 571 }
 572
 573 /*
 574  * Draw remote players
 575  */
 576 static void render_remote_players( world_instance *world, camera *cam ){
 577    SDL_AtomicLock( &addon_system.sl_cache_using_resources );
 578
 579    for( u32 i=0; i<NETWORK_MAX_PLAYERS; i ++ ){
 580       struct network_player *player = &netplayers.list[i];
 581       if( !player->active ) continue;
 582       if( player->active_world != world ) continue;
 583
 584       struct player_avatar *av = localplayer.playeravatar;
 585       m4x3f *final_mtx = &netplayers.final_mtx[ av->sk.bone_count*i ];
 586
 587       struct player_model *model =
 588          addon_cache_item_if_loaded( k_addon_type_player,
 589                                      player->playermodel_view_slot );
 590
 591       if( !model ) model = &localplayer.fallback_model;
 592       render_playermodel( cam, world, 0, model, &av->sk, final_mtx );
 593
 594       struct player_board *board =
 595          addon_cache_item_if_loaded( k_addon_type_board,
 596                                      player->board_view_slot );
 597       render_board( cam, world, board,
 598                      final_mtx[localplayer.playeravatar->id_board],
 599                      &netplayers.board_poses[ i ],
 600                      k_board_shader_player );
 601    }
 602
 603    SDL_AtomicUnlock( &addon_system.sl_cache_using_resources );
 604 }
 605
 606 static void render_remote_player_nametag( v3f co, const char *name ){
 607    m4x3f mlocal;
 608    m4x3_identity( mlocal );
 609    mlocal[3][0] -= font3d_string_width( 2, name ) * 0.5f;
 610
 611    m4x3f mmdl;
 612    m3x3_identity( mmdl );
 613    for( int i=0; i<3; i++ )
 614       v3_muls( skaterift.cam.mtx.v[i], 0.2f, mmdl[i] );
 615    m3x3_transpose( mmdl, mmdl );
 616    v3_add( co, (v3f){0.0f,2.0f,0.0f}, mmdl[3] );
 617
 618    m4x3_mul( mmdl, mlocal, mmdl );
 619    font3d_simple_draw( 2, name, &skaterift.cam, mmdl );
 620 }
 621
 622 static void render_remote_players_tags( world_instance *world, camera *cam ){
 623    glEnable(GL_BLEND);
 624    glEnable(GL_DEPTH_TEST);
 625    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 626    glBlendEquation(GL_FUNC_ADD);
 627
 628    font3d_bind( &gui.font, k_font_shader_default, 1, NULL, &skaterift.cam );
 629    font3d_setcolour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 630
 631    render_remote_player_nametag(
 632          localplayer.final_mtx[0][3],
 633          steam_username_at_startup );
 634
 635    for( u32 i=0; i<NETWORK_MAX_PLAYERS; i ++ ){
 636       struct network_player *player = &netplayers.list[i];
 637       if( !player->active ) continue;
 638       if( player->active_world != world ) continue;
 639
 640       struct player_avatar *av = localplayer.playeravatar;
 641       render_remote_player_nametag(
 642             netplayers.final_mtx[av->sk.bone_count*i][3],
 643             player->username );
 644    }
 645
 646    glDisable(GL_BLEND);
 647 }
 648
 649 static void remote_players_init(void){
 650    for( u32 i=0; i<NETWORK_SFX_QUEUE_LENGTH; i ++ ){
 651       netplayers.sfx_queue[i].system = k_player_subsystem_invalid;
 652    }
 653 }
 654
 655 static void remote_sfx_pre_update(void){
 656    for( u32 i=0; i<NETWORK_SFX_QUEUE_LENGTH; i ++ ){
 657       struct net_sfx *si = &netplayers.sfx_queue[i];
 658
 659       if( si->system != k_player_subsystem_invalid ){
 660          si->subframe -= vg.time_frame_delta;
 661          if( si->subframe <= 0.0f ){
 662             net_sfx_play( si );
 663             si->system = k_player_subsystem_invalid;
 664          }
 665       }
 666    }
 667 }