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 i32 k_show_own_name = 0;
  10
  11 static void player_remote_clear( struct network_player *player ){
  12    addon_cache_unwatch( k_addon_type_player, player->playermodel_view_slot );
  13    addon_cache_unwatch( k_addon_type_board, player->board_view_slot );
  14
  15    memset( player, 0, sizeof(*player) );
  16    strcpy( player->username, "unknown" );
  17    player->subsystem = k_player_subsystem_invalid;
  18 }
  19
  20 /*
  21  * re-attatches addon_reg pointers on the remote client if we have the same
  22  * world loaded.
  23  */
  24 static void relink_remote_player_worlds( u32 client_id ){
  25    struct network_player *player = &netplayers.list[client_id];
  26
  27    addon_alias q[2];
  28    addon_uid_to_alias( player->items[k_netmsg_playeritem_world0], &q[0] );
  29    addon_uid_to_alias( player->items[k_netmsg_playeritem_world1], &q[1] );
  30
  31    /*
  32     * currently in 10.23, the hub world will always be the same.
  33     * this might but probably wont change in the future
  34     */
  35    for( u32 i=0; i<k_world_max; i++ ){
  36       addon_reg *reg = world_static.instance_addons[ i ];
  37
  38       player->world_match[i] = 0;
  39
  40       if( reg ){
  41          if( addon_alias_eq( &q[i], &world_static.instance_addons[i]->alias ) )
  42             player->world_match[i] = 1;
  43       }
  44    }
  45 }
  46
  47 /*
  48  * re-attatches addon_reg pointers on the remote client if we have the mod
  49  * installed locally.
  50  *
  51  * Run if local worlds change
  52  */
  53 static void relink_all_remote_player_worlds(void){
  54    for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
  55       struct network_player *player = &netplayers.list[i];
  56       if( player->active )
  57          relink_remote_player_worlds(i);
  58    }
  59 }
  60
  61 static void player_remote_update_friendflags( struct network_player *remote ){
  62    ISteamFriends *hSteamFriends = SteamAPI_SteamFriends();
  63    remote->isfriend = SteamAPI_ISteamFriends_HasFriend( hSteamFriends,
  64                         remote->steamid, k_EFriendFlagImmediate );
  65    remote->isblocked = SteamAPI_ISteamFriends_HasFriend( hSteamFriends,
  66                         remote->steamid, k_EFriendFlagBlocked );
  67 }
  68
  69 static void player_remote_rx_200_300( SteamNetworkingMessage_t *msg ){
  70    netmsg_blank *tmp = msg->m_pData;
  71
  72    if( tmp->inetmsg_id == k_inetmsg_playerjoin ){
  73       netmsg_playerjoin *playerjoin = msg->m_pData;
  74       if( !packet_minsize( msg, sizeof(*playerjoin) )) return;
  75
  76       if( playerjoin->index < vg_list_size(netplayers.list) ){
  77          struct network_player *player = &netplayers.list[ playerjoin->index ];
  78          player_remote_clear( player );
  79          player->active = 1;
  80          player->steamid = playerjoin->steamid;
  81          player_remote_update_friendflags( player );
  82
  83          /* TODO: interpret the uids */
  84          player->board_view_slot = 0;
  85          player->playermodel_view_slot = 0;
  86
  87          struct interp_buffer *buf = &netplayers.interp_data[playerjoin->index];
  88          buf->t = -99999999.9;
  89          for( u32 i=0; i<vg_list_size(buf->frames); i ++ ){
  90             buf->frames[i].active = 0;
  91          }
  92
  93          vg_info( "#%u joined friend: %d, blocked: %d\n",
  94                   playerjoin->index, player->isfriend, player->isblocked );
  95       }
  96       else {
  97          vg_error( "inetmsg_playerjoin: player index out of range\n" );
  98       }
  99    }
 100    else if( tmp->inetmsg_id == k_inetmsg_playerleave ){
 101       netmsg_playerleave *playerleave = msg->m_pData;
 102       if( !packet_minsize( msg, sizeof(*playerleave) )) return;
 103
 104       if( playerleave->index < vg_list_size(netplayers.list) ){
 105          struct network_player *player = &netplayers.list[ playerleave->index ];
 106          player_remote_clear( player );
 107          player->active = 0;
 108          vg_info( "player leave (%d)\n", playerleave->index );
 109       }
 110       else {
 111          vg_error( "inetmsg_playerleave: player index out of range\n" );
 112       }
 113    }
 114    else if( tmp->inetmsg_id == k_inetmsg_playerusername ){
 115       netmsg_playerusername *update = msg->m_pData;
 116       if( !packet_minsize( msg, sizeof(*update) )) return;
 117
 118       if( update->index < vg_list_size(netplayers.list) ){
 119          struct network_player *player = &netplayers.list[ update->index ];
 120
 121          network_msgstring( update->name, msg->m_cbSize, sizeof(*update),
 122                             player->username, sizeof(player->username) );
 123
 124          vg_info( "#%u changed username to: %s\n",
 125                   update->index, player->username );
 126       }
 127       else {
 128          vg_error( "inetmsg_playerleave: player index out of range\n" );
 129       }
 130    }
 131    else if( tmp->inetmsg_id == k_inetmsg_playerframe ){
 132       u32 datasize = msg->m_cbSize - sizeof(netmsg_playerframe);
 133
 134       if( datasize > sizeof(union interp_animdata) ){
 135          vg_error( "Player frame data exceeds animdata size\n" );
 136          return;
 137       }
 138
 139       netmsg_playerframe *frame = msg->m_pData;
 140       if( frame->client >= vg_list_size(netplayers.list) ){
 141          vg_error( "inetmsg_playerframe: player index out of range\n" );
 142          return;
 143       }
 144
 145       if( frame->subsystem >= k_player_subsystem_max ){
 146          vg_error( "inetmsg_playerframe: subsystem out of range\n" );
 147          return;
 148       }
 149
 150       struct interp_buffer *ib = &netplayers.interp_data[ frame->client ];
 151       struct interp_frame *dest = NULL;
 152
 153       f64 min_time = INFINITY;
 154       for( u32 i=0; i<vg_list_size(ib->frames); i++ ){
 155          struct interp_frame *ifr = &ib->frames[i];
 156
 157          if( !ifr->active ){
 158             dest = ifr;
 159             break;
 160          }
 161
 162          if( ifr->timestamp < min_time ){
 163             min_time = ifr->timestamp;
 164             dest = ifr;
 165          }
 166       }
 167
 168       dest->active = 1;
 169       dest->subsystem = frame->subsystem;
 170       dest->instance_id = frame->instance_id;
 171
 172       bitpack_ctx ctx = {
 173          .mode = k_bitpack_decompress,
 174          .buffer = frame->animdata,
 175          .buffer_len = datasize,
 176          .bytes = 0,
 177       };
 178
 179
 180       /* sfx
 181        * -------------------------------------------------------------*/
 182
 183       for( u32 i=0; i<frame->sound_effects; i ++ ){
 184          struct net_sfx sfx;
 185          net_sfx_exchange( &ctx, &sfx );
 186
 187          f64 t = (frame->timestamp - NETWORK_FRAMERATE) +
 188                  (sfx.subframe*NETWORK_FRAMERATE);
 189
 190          f32 remaining = t - ib->t;
 191
 192          if( remaining <= 0.0f )
 193             net_sfx_play( &sfx );
 194          else{
 195             struct net_sfx *dst = NULL;
 196
 197             for( u32 j=0; j<NETWORK_SFX_QUEUE_LENGTH; j ++ ){
 198                struct net_sfx *sj = &netplayers.sfx_queue[j];
 199                if( sj->system == k_player_subsystem_invalid ){
 200                   dst = sj;
 201                   break;
 202                }
 203
 204                if( sj->priority < sfx.priority )
 205                   dst = sj;
 206             }
 207
 208             *dst = sfx;
 209             dst->subframe = remaining;
 210          }
 211       }
 212
 213       /* animation
 214        * -------------------------------------------------------------*/
 215
 216       dest->timestamp = frame->timestamp;
 217       dest->boundary_hash = frame->boundary_hash;
 218
 219       struct network_player *player = &netplayers.list[ frame->client ];
 220       struct player_subsystem_interface *sys =
 221          player_subsystems[ frame->subsystem ];
 222
 223       if( sys->network_animator_exchange ){
 224          memset( &dest->data, 0, sys->animator_size );
 225          sys->network_animator_exchange( &ctx, &dest->data );
 226       }
 227       else {
 228          bitpack_bytes( &ctx, sys->animator_size, sys->animator_data );
 229       }
 230
 231       player->subsystem = frame->subsystem;
 232       player->down_bytes += msg->m_cbSize;
 233    }
 234    else if( tmp->inetmsg_id == k_inetmsg_playeritem ){
 235       netmsg_playeritem *item = msg->m_pData;
 236       if( !packet_minsize( msg, sizeof(*item)+1 )) return;
 237
 238       if( item->client >= vg_list_size(netplayers.list) ){
 239          vg_error( "inetmsg_playerframe: player index out of range\n" );
 240          return;
 241       }
 242
 243       if( item->type_index >= k_netmsg_playeritem_max ){
 244          vg_warn( "Client #%d invalid equip type %u\n",
 245                   (i32)item->client, (u32)item->type_index );
 246          return;
 247       }
 248
 249       vg_info( "Client #%d equiped: [%s] %s\n",
 250                item->client,
 251                (const char *[]){[k_netmsg_playeritem_board]="board",
 252                                 [k_netmsg_playeritem_player]="player",
 253                                 [k_netmsg_playeritem_world0]="world0",
 254                                 [k_netmsg_playeritem_world1]="world1"
 255                }[item->type_index], item->uid );
 256
 257       struct network_player *player = &netplayers.list[ item->client ];
 258       char *uid = player->items[ item->type_index ];
 259
 260       network_msgstring( item->uid, msg->m_cbSize, sizeof(*item),
 261                          uid, ADDON_UID_MAX );
 262
 263       if( item->type_index == k_netmsg_playeritem_board ){
 264          addon_cache_unwatch( k_addon_type_board, player->board_view_slot );
 265          player->board_view_slot =
 266             addon_cache_create_viewer_from_uid( k_addon_type_board, uid );
 267       }
 268       else if( item->type_index == k_netmsg_playeritem_player ){
 269          addon_cache_unwatch( k_addon_type_player,
 270                               player->playermodel_view_slot );
 271          player->playermodel_view_slot =
 272             addon_cache_create_viewer_from_uid( k_addon_type_player, uid );
 273       }
 274       else if( (item->type_index == k_netmsg_playeritem_world0) ||
 275                (item->type_index == k_netmsg_playeritem_world1) ){
 276          relink_remote_player_worlds( item->client );
 277       }
 278    }
 279 }
 280
 281 /*
 282  * Write localplayer pose to network
 283  */
 284 static void remote_player_send_playerframe(void){
 285    u8 sysid = localplayer.subsystem;
 286    if( sysid >= k_player_subsystem_max ) return;
 287
 288    struct player_subsystem_interface *sys = player_subsystems[sysid];
 289
 290    if( sys->animator_size ){
 291       u32 max_buf_size = sys->animator_size + sizeof(localplayer.sfx_buffer),
 292           base_size = sizeof(struct netmsg_playerframe),
 293           max_packet = base_size + max_buf_size;
 294
 295       netmsg_playerframe *frame = alloca( max_packet );
 296       frame->inetmsg_id = k_inetmsg_playerframe;
 297       frame->client = 0xff;
 298       frame->subsystem = localplayer.subsystem;
 299       frame->instance_id = world_static.active_instance;
 300
 301       bitpack_ctx ctx = {
 302          .mode = k_bitpack_compress,
 303          .buffer = frame->animdata,
 304          .buffer_len = max_buf_size,
 305          .bytes = 0
 306       };
 307
 308       /* sfx
 309        * ---------------------------------------------*/
 310
 311       frame->sound_effects = localplayer.sfx_buffer_count;
 312       for( u32 i=0; i<localplayer.sfx_buffer_count; i ++ )
 313          net_sfx_exchange( &ctx, &localplayer.sfx_buffer[i] );
 314
 315       /* animation
 316        * -----------------------------------------------*/
 317
 318       frame->timestamp = vg.time_real;
 319       frame->boundary_hash = localplayer.boundary_hash;
 320       if( sys->network_animator_exchange )
 321          sys->network_animator_exchange( &ctx, sys->animator_data );
 322       else
 323          bitpack_bytes( &ctx, sys->animator_size, sys->animator_data );
 324
 325       u32 wire_size = base_size + ctx.bytes;
 326       netplayers.up_bytes += wire_size;
 327
 328       SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 329             hSteamNetworkingSockets, network_client.remote,
 330             frame, wire_size,
 331             k_nSteamNetworkingSend_Unreliable, NULL );
 332    }
 333 }
 334
 335 /*
 336  * Updates network traffic stats
 337  */
 338 static void remote_player_debug_update(void){
 339    if( (vg.time_real - netplayers.last_data_measurement) > 1.0 ){
 340       netplayers.last_data_measurement = vg.time_real;
 341       u32 total_down = 0;
 342
 343       for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
 344          struct network_player *player = &netplayers.list[i];
 345          if( player->active ){
 346             total_down += player->down_bytes;
 347             player->down_kbs = ((f32)player->down_bytes)/1024.0f;
 348             player->down_bytes = 0;
 349          }
 350       }
 351
 352       netplayers.down_kbs = ((f32)total_down)/1024.0f;
 353       netplayers.up_kbs = ((f32)netplayers.up_bytes)/1024.0f;
 354       netplayers.up_bytes = 0;
 355    }
 356 }
 357
 358 static void remote_player_nametag( m4x4f pv, v3f co, const char *name ){
 359    return;
 360    vg_ui.font = &vg_ui_font_big;
 361    v4f wpos;
 362    v3_copy( co, wpos );
 363    wpos[1] += 2.0f;
 364    wpos[3] = 1.0f;
 365
 366    m4x4_mulv( pv, wpos, wpos );
 367
 368    if( wpos[3] > 0.0f ){
 369       v2_muls( wpos, (1.0f/wpos[3]) * 0.5f, wpos );
 370       v2_add( wpos, (v2f){ 0.5f, 0.5f }, wpos );
 371
 372       ui_rect wr;
 373       wr[0] = vg_clampf(wpos[0] * vg.window_x, -32000.0f,32000.0f)-150;
 374       wr[1] = vg_clampf((1.0f-wpos[1]) * vg.window_y,
 375                         -32000.0f,32000.0f);
 376       wr[2] = 300;
 377       wr[3] = 32;
 378       ui_fill( wr, (ui_colour(k_ui_bg)&0x00ffffff)|0x50000000 );
 379       ui_text( wr, name, 1, k_ui_align_middle_center, 0 );
 380    }
 381    vg_ui.font = &vg_ui_font_small;
 382 }
 383
 384 /*
 385  * Debugging information
 386  */
 387 static void remote_player_network_imgui( m4x4f pv ){
 388    if( !network_client.network_info )
 389       return;
 390
 391    ui_rect panel = { (vg.window_x / 2) - 200, 0, 400, 600 };
 392    ui_fill( panel, (ui_colour(k_ui_bg)&0x00ffffff)|0x50000000 );
 393
 394    char buf[512];
 395    const char *netstatus = "PROGRAMMING ERROR";
 396
 397    struct { enum ESteamNetworkingConnectionState state; const char *str; }
 398    states[] = {
 399            { k_ESteamNetworkingConnectionState_None, "None" },
 400            { k_ESteamNetworkingConnectionState_Connecting,
 401          (const char *[]){"Connecting -",
 402                           "Connecting /",
 403                           "Connecting |",
 404                           "Connecting \\",
 405                           }[(u32)(vg.time_real/0.25) & 0x3 ] },
 406            { k_ESteamNetworkingConnectionState_FindingRoute, "Finding Route" },
 407            { k_ESteamNetworkingConnectionState_Connected, "Connected" },
 408            { k_ESteamNetworkingConnectionState_ClosedByPeer, "Closed by peer" },
 409            { k_ESteamNetworkingConnectionState_ProblemDetectedLocally,
 410          "Problem Detected Locally" },
 411            { k_ESteamNetworkingConnectionState_FinWait, "Fin Wait" },
 412            { k_ESteamNetworkingConnectionState_Linger, "Linger" },
 413            { k_ESteamNetworkingConnectionState_Dead, "Dead" }
 414    };
 415    for( u32 i=0; i<vg_list_size(states); i ++ ){
 416       if( states[i].state == network_client.state ){
 417          netstatus = states[i].str;
 418          break;
 419       }
 420    }
 421    snprintf( buf, 512, "Network: %s", netstatus );
 422    ui_info( panel, buf );
 423    ui_info( panel, "---------------------" );
 424
 425    if( network_client.state == k_ESteamNetworkingConnectionState_Connected ){
 426       ui_info( panel, "#-1: localplayer" );
 427
 428       snprintf( buf, 512, "U%.3f/D%.3fkbs",
 429                 netplayers.up_kbs, netplayers.down_kbs );
 430       ui_info( panel, buf );
 431
 432       for( u32 i=0; i<vg_list_size(netplayers.list); i++ ){
 433          struct network_player *player = &netplayers.list[i];
 434          if( player->active ){
 435             const char *sysname = "invalid";
 436
 437             if( player->subsystem < k_player_subsystem_max ){
 438                sysname = player_subsystems[ player->subsystem ]->name;
 439             }
 440             snprintf( buf, 512, "#%u: %s [%s] D%.1fkbs",
 441                       i, player->username, sysname, player->down_kbs );
 442             ui_info( panel, buf );
 443
 444             struct player_avatar *av = localplayer.playeravatar;
 445             remote_player_nametag(
 446                   pv,
 447                   netplayers.final_mtx[av->sk.bone_count*i][3],
 448                   player->username );
 449          }
 450       }
 451    }
 452    else {
 453       ui_info( panel, "offline" );
 454    }
 455
 456    struct player_avatar *av = localplayer.playeravatar;
 457    remote_player_nametag(
 458          pv,
 459          localplayer.final_mtx[0][3],
 460          "Localplayer" );
 461 }
 462
 463 /*
 464  * write the remote players final_mtx
 465  */
 466 static void pose_remote_player( u32 index,
 467                                 struct interp_frame *f0,
 468                                 struct interp_frame *f1 ){
 469
 470    struct network_player *player = &netplayers.list[ index ];
 471
 472    struct interp_buffer *buf = &netplayers.interp_data[ index ];
 473    struct player_avatar *av = localplayer.playeravatar;
 474    m4x3f *final_mtx = &netplayers.final_mtx[ av->sk.bone_count*index ];
 475    struct player_board_pose *board_pose = &netplayers.board_poses[index];
 476
 477    struct player_subsystem_interface *sys0 = player_subsystems[f0->subsystem],
 478                                      *sys1 = NULL;
 479
 480    player_pose pose0, pose1, posed;
 481    sys0->pose( &f0->data, &pose0 );
 482
 483    u8 instance_id = 0;
 484
 485    if( f1 ){
 486       f32 t = (buf->t - f0->timestamp) / (f1->timestamp - f0->timestamp);
 487           t = vg_clampf( t, 0.0f, 1.0f );
 488
 489       sys1 = player_subsystems[f1->subsystem];
 490       sys1->pose( &f1->data, &pose1 );
 491
 492       u16 bounds = f0->boundary_hash^f1->boundary_hash;
 493
 494       if( bounds & NETMSG_BOUNDARY_BIT )
 495          t = 1.0f;
 496
 497       if( bounds & NETMSG_GATE_BOUNDARY_BIT ){
 498          /* TODO: Extra work retransforming the root_co, instance_id.. etc */
 499          t = 1.0f;
 500       }
 501
 502       instance_id = f1->instance_id;
 503
 504       lerp_player_pose( &pose0, &pose1, t, &posed );
 505       apply_full_skeleton_pose( &av->sk, &posed, final_mtx );
 506       memcpy( board_pose, &posed.board, sizeof(*board_pose) );
 507    }
 508    else {
 509       instance_id = f0->instance_id;
 510
 511       apply_full_skeleton_pose( &av->sk, &pose0, final_mtx );
 512       memcpy( board_pose, &pose0.board, sizeof(*board_pose) );
 513    }
 514
 515    if( player->world_match[ instance_id ] )
 516       player->active_world = &world_static.instances[ instance_id ];
 517 }
 518
 519 /*
 520  * animate remote player and store in final_mtx
 521  */
 522 static void animate_remote_player( u32 index ){
 523
 524    /*
 525     * Trys to keep the cursor inside the buffer
 526     */
 527    f64 min_time = -999999999.9,
 528        max_time =  999999999.9,
 529        abs_max_time = -999999999.9;
 530
 531    struct interp_frame *minframe = NULL,
 532                        *maxframe = NULL,
 533                        *abs_max_frame = NULL;
 534
 535    struct interp_buffer *buf = &netplayers.interp_data[index];
 536    for( u32 i=0; i<vg_list_size(buf->frames); i ++ ){
 537       struct interp_frame *ifr = &buf->frames[i];
 538
 539       if( ifr->active ){
 540          if( (ifr->timestamp > min_time) && (ifr->timestamp < buf->t) ){
 541             min_time = ifr->timestamp;
 542             minframe = ifr;
 543          }
 544
 545          if( (ifr->timestamp < max_time) && (ifr->timestamp > buf->t) ){
 546             max_time = ifr->timestamp;
 547             maxframe = ifr;
 548          }
 549
 550          if( ifr->timestamp > abs_max_time ){
 551             abs_max_time = ifr->timestamp;
 552             abs_max_frame = ifr;
 553          }
 554       }
 555    }
 556
 557    struct network_player *player = &netplayers.list[ index ];
 558    player->active_world = NULL;
 559
 560    if( minframe && maxframe ){
 561       pose_remote_player( index, minframe, maxframe );
 562       buf->t += vg.time_frame_delta;
 563    }
 564    else {
 565       buf->t = abs_max_time - 0.25;
 566
 567       if( abs_max_frame )
 568          pose_remote_player( index, abs_max_frame, NULL );
 569       else
 570          return;
 571    }
 572 }
 573
 574 /*
 575  * Update full final_mtx for all remote players
 576  */
 577 static void animate_remote_players(void){
 578    for( u32 i=0; i<vg_list_size(netplayers.list); i ++ ){
 579       struct network_player *player = &netplayers.list[i];
 580       if( !player->active ) continue;
 581
 582       animate_remote_player( i );
 583    }
 584 }
 585
 586 /*
 587  * Draw remote players
 588  */
 589 static void render_remote_players( world_instance *world, camera *cam ){
 590    SDL_AtomicLock( &addon_system.sl_cache_using_resources );
 591
 592    for( u32 i=0; i<NETWORK_MAX_PLAYERS; i ++ ){
 593       struct network_player *player = &netplayers.list[i];
 594       if( !player->active || player->isblocked ) continue;
 595       if( player->active_world != world ) continue;
 596
 597       struct player_avatar *av = localplayer.playeravatar;
 598       m4x3f *final_mtx = &netplayers.final_mtx[ av->sk.bone_count*i ];
 599
 600       struct player_model *model =
 601          addon_cache_item_if_loaded( k_addon_type_player,
 602                                      player->playermodel_view_slot );
 603
 604       if( !model ) model = &localplayer.fallback_model;
 605       render_playermodel( cam, world, 0, model, &av->sk, final_mtx );
 606
 607       struct player_board *board =
 608          addon_cache_item_if_loaded( k_addon_type_board,
 609                                      player->board_view_slot );
 610       render_board( cam, world, board,
 611                      final_mtx[localplayer.playeravatar->id_board],
 612                      &netplayers.board_poses[ i ],
 613                      k_board_shader_player );
 614    }
 615
 616    SDL_AtomicUnlock( &addon_system.sl_cache_using_resources );
 617 }
 618
 619 static void render_remote_player_nametag( v3f co, const char *name ){
 620    m4x3f mlocal;
 621    m4x3_identity( mlocal );
 622    mlocal[3][0] -= font3d_string_width( 2, name ) * 0.5f;
 623
 624    m4x3f mmdl;
 625    m3x3_identity( mmdl );
 626    for( int i=0; i<3; i++ )
 627       v3_muls( skaterift.cam.mtx.v[i], 0.2f, mmdl[i] );
 628    m3x3_transpose( mmdl, mmdl );
 629    v3_add( co, (v3f){0.0f,2.0f,0.0f}, mmdl[3] );
 630
 631    m4x3_mul( mmdl, mlocal, mmdl );
 632    font3d_simple_draw( 2, name, &skaterift.cam, mmdl );
 633 }
 634
 635 static void render_remote_players_tags( world_instance *world, camera *cam ){
 636    glEnable(GL_BLEND);
 637    glEnable(GL_DEPTH_TEST);
 638    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 639    glBlendEquation(GL_FUNC_ADD);
 640
 641    font3d_bind( &gui.font, k_font_shader_default, 1, NULL, &skaterift.cam );
 642    font3d_setcolour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 643
 644    if( k_show_own_name ){
 645       render_remote_player_nametag(
 646             localplayer.final_mtx[0][3],
 647             steam_username_at_startup );
 648    }
 649
 650    for( u32 i=0; i<NETWORK_MAX_PLAYERS; i ++ ){
 651       struct network_player *player = &netplayers.list[i];
 652       if( !player->active || player->isblocked ) continue;
 653       if( player->active_world != world ) continue;
 654
 655       struct player_avatar *av = localplayer.playeravatar;
 656       render_remote_player_nametag(
 657             netplayers.final_mtx[av->sk.bone_count*i][3],
 658             player->username );
 659    }
 660
 661    glDisable(GL_BLEND);
 662 }
 663
 664 static void remote_players_init(void){
 665    vg_console_reg_var( "k_show_own_name", &k_show_own_name,
 666                        k_var_dtype_i32, 0 );
 667    for( u32 i=0; i<NETWORK_SFX_QUEUE_LENGTH; i ++ ){
 668       netplayers.sfx_queue[i].system = k_player_subsystem_invalid;
 669    }
 670 }
 671
 672 static void remote_sfx_pre_update(void){
 673    for( u32 i=0; i<NETWORK_SFX_QUEUE_LENGTH; i ++ ){
 674       struct net_sfx *si = &netplayers.sfx_queue[i];
 675
 676       if( si->system != k_player_subsystem_invalid ){
 677          si->subframe -= vg.time_frame_delta;
 678          if( si->subframe <= 0.0f ){
 679             net_sfx_play( si );
 680             si->system = k_player_subsystem_invalid;
 681          }
 682       }
 683    }
 684 }