player.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 /*
   6  * TODO: Tilt camera down to face borde when its behind you or out of vision
   7  */
   8
   9 #ifndef PLAYER_H
  10 #define PLAYER_H
  11
  12 #define PLAYER_REWIND_FRAMES 60*4
  13
  14 #include "conf.h"
  15 #include "audio.h"
  16 #include "common.h"
  17 #include "world.h"
  18 #include "skeleton.h"
  19 #include "bvh.h"
  20
  21 VG_STATIC float
  22    k_walkspeed             = 12.0f,
  23    k_air_accelerate        = 20.0f,
  24
  25    k_runspeed              = 20.0f,
  26    k_board_radius          = 0.3f,
  27    k_board_length          = 0.45f,
  28    k_board_allowance       = 0.04f,
  29    //k_friction_lat          = 8.8f,
  30    k_friction_lat          = 12.0f,
  31    k_friction_resistance   = 0.01f,
  32    k_max_push_speed        = 16.0f,
  33    k_push_accel            = 10.0f,
  34    k_push_cycle_rate       = 8.0f,
  35    k_steer_ground          = 2.5f,
  36    k_steer_air             = 3.6f,
  37    k_steer_air_lerp        = 0.3f,
  38    k_pump_force            = 0.0f,
  39    k_downforce             = 8.0f,
  40    k_walk_downforce        = 8.0f,
  41    k_jump_charge_speed     = (1.0f/1.0f),
  42    k_jump_force            = 5.0f,
  43    k_pitch_limit           = 1.5f,
  44    k_look_speed            = 2.0f,
  45    k_walk_accel            = 150.0f,
  46    k_walk_friction         = 8.0f;
  47
  48 VG_STATIC int freecam = 0;
  49 VG_STATIC int walk_grid_iterations = 1;
  50 VG_STATIC float fc_speed = 10.0f;
  51 VG_STATIC int cl_thirdperson = 0;
  52
  53 /*
  54  * -----------------------------------------------------------------------------
  55  *                                  Memory
  56  * -----------------------------------------------------------------------------
  57  */
  58
  59 VG_STATIC struct gplayer
  60 {
  61    /* Physics */
  62    rigidbody collide_front, collide_back;
  63
  64    struct player_phys
  65    {
  66       rigidbody rb, rb_gate_frame;
  67       float iY, siY;   /* Yaw inertia */
  68
  69       v3f a, v_last, m, bob, vl;
  70
  71       /* Utility */
  72       float vswitch, slip, slip_last, reverse;
  73       float grab, jump, pushing, push_time, rise;
  74       v2f grab_mouse_delta;
  75
  76       int lift_frames;
  77
  78       double start_push;
  79       int in_air, on_board, jump_charge, jump_dir, grind;
  80
  81       m3x3f vr,vr_pstep;
  82    }
  83    phys,
  84    phys_gate_frame;
  85
  86    m4x3f visual_transform,
  87          inv_visual_transform;
  88
  89    int is_dead, death_tick_allowance, rewinding;
  90    int rewind_sound_wait;
  91
  92    struct land_prediction
  93    {
  94       v3f   log[50];
  95       v3f   n;
  96       u32   log_length;
  97       float score;
  98
  99       enum prediction_type
 100       {
 101          k_prediction_none,
 102          k_prediction_land,
 103          k_prediction_grind
 104       }
 105       type;
 106
 107       u32   colour;
 108    }
 109    predictions[22];
 110    u32 prediction_count;
 111
 112    v3f handl_target, handr_target,
 113        handl, handr;
 114
 115    /* Input */
 116    struct input_binding *input_js1h,
 117                         *input_js1v,
 118                         *input_js2h,
 119                         *input_js2v,
 120                         *input_jump,
 121                         *input_push,
 122                         *input_walk,
 123                         *input_walkh,
 124                         *input_walkv,
 125                         *input_switch_mode,
 126                         *input_reset,
 127                         *input_grab;
 128
 129    /* Camera */
 130    float air_blend;
 131    float air_time;
 132
 133    v3f camera_pos, smooth_localcam;
 134    v2f angles;
 135
 136    struct rewind_frame
 137    {
 138       v3f pos;
 139       v2f ang;
 140    }
 141    *rewind_buffer;
 142    u32 rewind_incrementer,
 143        rewind_length;
 144
 145    float rewind_time, rewind_total_length, rewind_predicted_time;
 146    double diag_rewind_start, diag_rewind_time;
 147    float dist_accum;
 148
 149    /* animation */
 150    double jump_time;
 151    float fslide,
 152          fdirz, fdirx,
 153          fstand,
 154          ffly,
 155          fpush,
 156          fairdir,
 157          fsetup,
 158          walk_timer,
 159          fjump,
 160          fonboard,
 161          frun,
 162          fgrind;
 163
 164    float walk;
 165    int step_phase;
 166    enum mdl_surface_prop surface_prop;
 167
 168    /* player model */
 169    struct player_model
 170    {
 171       glmesh player_meshes[3];
 172
 173       mdl_context meta;
 174       struct skeleton sk;
 175       struct skeleton_anim *anim_stand,
 176                            *anim_highg,
 177                            *anim_slide,
 178                            *anim_air,
 179                            *anim_push, *anim_push_reverse,
 180                            *anim_ollie, *anim_ollie_reverse,
 181                            *anim_grabs, *anim_stop,
 182                            *anim_walk, *anim_run, *anim_idle,
 183                            *anim_jump;
 184
 185       u32 id_hip,
 186           id_ik_hand_l,
 187           id_ik_hand_r,
 188           id_ik_elbow_l,
 189           id_ik_elbow_r,
 190           id_head;
 191
 192       v3f cam_pos;
 193
 194       struct ragdoll_part
 195       {
 196          u32 bone_id;
 197          //v3f offset;
 198
 199          /* Collider transform relative to bone */
 200          m4x3f collider_mtx,
 201                inv_collider_mtx;
 202
 203          u32 use_limits;
 204          v3f limits[2];
 205
 206          rigidbody  rb;
 207          u32 parent;
 208          u32 colour;
 209       }
 210       ragdoll[32];
 211       u32 ragdoll_count;
 212
 213       rb_constr_pos  position_constraints[32];
 214       u32            position_constraints_count;
 215
 216       rb_constr_swingtwist cone_constraints[32];
 217       u32                  cone_constraints_count;
 218
 219       int shoes[2];
 220    }
 221    mdl;
 222 }
 223 player =
 224 {
 225    .collide_front = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f },
 226    .collide_back  = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f }
 227 };
 228
 229 /*
 230  * API
 231  */
 232 VG_STATIC float *player_get_pos(void);
 233 VG_STATIC void player_kill(void);
 234 VG_STATIC float *player_cam_pos(void);
 235 VG_STATIC void player_save_frame(void);
 236 VG_STATIC void player_restore_frame(void);
 237 VG_STATIC void player_save_rewind_frame(void);
 238
 239 /*
 240  * Submodules
 241  */
 242 VG_STATIC void player_mouseview(void);
 243
 244 #include "player_physics.h"
 245 #include "player_ragdoll.h"
 246 #include "player_model.h"
 247 #include "player_animation.h"
 248 #include "player_audio.h"
 249
 250 /*
 251  * -----------------------------------------------------------------------------
 252  *                                    Events
 253  * -----------------------------------------------------------------------------
 254  */
 255 VG_STATIC int kill_player( int argc, char const *argv[] );
 256 VG_STATIC int reset_player( int argc, char const *argv[] );
 257 VG_STATIC void reset_player_poll( int argc, char const *argv[] );
 258
 259 VG_STATIC void player_init(void)                                         /* 1 */
 260 {
 261    player.input_js1h = vg_create_named_input( "steer-h", k_input_type_axis );
 262    player.input_js1v = vg_create_named_input( "steer-v", k_input_type_axis );
 263    player.input_grab = vg_create_named_input( "grab", k_input_type_axis_norm );
 264    player.input_js2h = vg_create_named_input( "grab-h", k_input_type_axis );
 265    player.input_js2v = vg_create_named_input( "grab-v", k_input_type_axis );
 266    player.input_jump = vg_create_named_input( "jump", k_input_type_button );
 267    player.input_push = vg_create_named_input( "push", k_input_type_button );
 268    player.input_walk = vg_create_named_input( "walk", k_input_type_button );
 269
 270    player.input_walkh = vg_create_named_input( "walk-h",
 271                                                k_input_type_axis );
 272    player.input_walkv = vg_create_named_input( "walk-v",
 273                                                k_input_type_axis );
 274
 275
 276    player.input_switch_mode = vg_create_named_input( "switch-mode",
 277                                                      k_input_type_button );
 278    player.input_reset = vg_create_named_input( "reset", k_input_type_button );
 279
 280    const char *default_cfg[] =
 281    {
 282       "bind  steer-h gp-ls-h",
 283       "bind -steer-h a",
 284       "bind +steer-h d",
 285
 286       "bind  steer-v gp-ls-v",
 287       "bind -steer-v w",
 288       "bind +steer-v s",
 289
 290       "bind  grab gp-rt",
 291       "bind +grab shift",
 292       "bind  grab-h gp-rs-h",
 293       "bind  grab-v gp-rs-v",
 294
 295       "bind jump space",
 296       "bind jump gp-a",
 297
 298       "bind push gp-b",
 299       "bind push w",
 300
 301       "bind walk shift",
 302       "bind walk gp-ls",
 303
 304       "bind  walk-h  gp-ls-h",
 305       "bind  walk-v -gp-ls-v",
 306       "bind +walk-h d",
 307       "bind -walk-h a",
 308       "bind +walk-v w",
 309       "bind -walk-v s",
 310
 311       "bind reset gp-lb",
 312       "bind reset r",
 313
 314       "bind switch-mode gp-y",
 315       "bind switch-mode e",
 316    };
 317
 318    for( int i=0; i<vg_list_size(default_cfg); i++ )
 319       vg_execute_console_input(default_cfg[i]);
 320
 321    rb_init( &player.phys.rb );
 322    rb_init( &player.collide_front );
 323    rb_init( &player.collide_back  );
 324
 325    vg_var_push( (struct vg_var){
 326       .name = "gwalk_speed",
 327       .data = &k_walkspeed,
 328       .data_type = k_var_dtype_f32,
 329       .opt_f32 = { .clamp = 0 },
 330       .persistent = 0
 331    });
 332
 333    vg_var_push( (struct vg_var){
 334       .name = "air_accelerate",
 335       .data = &k_air_accelerate,
 336       .data_type = k_var_dtype_f32,
 337       .opt_f32 = { .clamp = 0 },
 338       .persistent = 0
 339    });
 340
 341    vg_var_push( (struct vg_var){
 342       .name = "run_speed",
 343       .data = &k_runspeed,
 344       .data_type = k_var_dtype_f32,
 345       .opt_f32 = { .clamp = 0 },
 346       .persistent = 1
 347    });
 348
 349    vg_var_push( (struct vg_var){
 350       .name = "walk_accel",
 351       .data = &k_walk_accel,
 352       .data_type = k_var_dtype_f32,
 353       .opt_f32 = { .clamp = 0 },
 354       .persistent = 1
 355    });
 356
 357    vg_var_push( (struct vg_var){
 358       .name = "fc",
 359       .data = &freecam,
 360       .data_type = k_var_dtype_i32,
 361       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 362       .persistent = 1
 363    });
 364
 365    vg_var_push( (struct vg_var){
 366       .name = "cl_thirdperson",
 367       .data = &cl_thirdperson,
 368       .data_type = k_var_dtype_i32,
 369       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 370       .persistent = 1
 371    });
 372
 373    vg_var_push( (struct vg_var){
 374       .name = "fcs",
 375       .data = &fc_speed,
 376       .data_type = k_var_dtype_f32,
 377       .opt_f32 = { .clamp = 0 },
 378       .persistent = 1
 379    });
 380
 381    vg_var_push( (struct vg_var){
 382       .name = "k_ragdoll_limit_scale",
 383       .data = &k_ragdoll_limit_scale,
 384       .data_type = k_var_dtype_f32,
 385       .opt_f32 = { .clamp = 0 },
 386       .persistent = 1
 387    });
 388
 389    vg_var_push( (struct vg_var){
 390       .name = "k_ragdoll_div",
 391       .data = &k_ragdoll_div,
 392       .data_type = k_var_dtype_i32,
 393       .opt_i32 = { .clamp=0 },
 394       .persistent = 1
 395    });
 396
 397    vg_var_push( (struct vg_var){
 398       .name = "k_ragdoll_debug_collider",
 399       .data = &k_ragdoll_debug_collider,
 400       .data_type = k_var_dtype_i32,
 401       .opt_i32 = { .clamp=0 },
 402       .persistent = 1
 403    });
 404
 405    vg_var_push( (struct vg_var){
 406       .name = "k_ragdoll_debug_constraints",
 407       .data = &k_ragdoll_debug_constraints,
 408       .data_type = k_var_dtype_i32,
 409       .opt_i32 = { .clamp=0 },
 410       .persistent = 1
 411    });
 412
 413         vg_function_push( (struct vg_cmd){
 414                 .name = "reset",
 415                 .function = reset_player,
 416       .poll_suggest = reset_player_poll
 417         });
 418
 419         vg_function_push( (struct vg_cmd){
 420                 .name = "kill",
 421                 .function = kill_player
 422         });
 423
 424    /* HACK */
 425    rb_register_cvar();
 426
 427    player.rewind_length = 0;
 428    player.rewind_buffer =
 429       vg_linear_alloc( vg_mem.rtmemory,
 430                        sizeof(struct rewind_frame) * PLAYER_REWIND_FRAMES );
 431
 432    player_model_init();
 433
 434    /* controls */
 435
 436 }
 437
 438 VG_STATIC void player_save_rewind_frame(void)
 439 {
 440    if( player.rewind_length < PLAYER_REWIND_FRAMES )
 441    {
 442       struct rewind_frame *fr =
 443          &player.rewind_buffer[ player.rewind_length ++ ];
 444
 445       v2_copy( player.angles, fr->ang );
 446       v3_copy( player.camera_pos, fr->pos );
 447
 448       player.rewind_incrementer = 0;
 449
 450       if( player.rewind_length > 1 )
 451       {
 452          player.rewind_total_length +=
 453             v3_dist( player.rewind_buffer[player.rewind_length-1].pos,
 454                      player.rewind_buffer[player.rewind_length-2].pos );
 455       }
 456    }
 457 }
 458
 459
 460 /* disaster */
 461 VG_STATIC int         menu_enabled(void);
 462 #include "menu.h"
 463
 464 /*
 465  * Free camera movement
 466  */
 467 VG_STATIC void player_mouseview(void)
 468 {
 469    if( menu_enabled() )
 470       return;
 471
 472    v2_muladds( player.angles, vg.mouse_delta, 0.0025f, player.angles );
 473
 474    if( vg_input.controller_should_use_trackpad_look )
 475    {
 476       static v2f last_input;
 477       static v2f vel;
 478       static v2f vel_smooth;
 479
 480       v2f input = { player.input_js2h->axis.value,
 481                     player.input_js2v->axis.value };
 482
 483       if( (v2_length2(last_input) > 0.001f) && (v2_length2(input) > 0.001f) )
 484       {
 485          v2_sub( input, last_input, vel );
 486          v2_muls( vel, 1.0f/vg.time_delta, vel );
 487       }
 488       else
 489       {
 490          v2_zero( vel );
 491       }
 492
 493       v2_lerp( vel_smooth, vel, vg.time_delta*8.0f, vel_smooth );
 494
 495       v2_muladds( player.angles, vel_smooth, vg.time_delta, player.angles );
 496       v2_copy( input, last_input );
 497    }
 498    else
 499    {
 500       player.angles[0] += player.input_js2h->axis.value * vg.time_delta * 4.0f;
 501       player.angles[1] += player.input_js2v->axis.value * vg.time_delta * 4.0f;
 502    }
 503
 504    player.angles[1] = vg_clampf( player.angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 505 }
 506
 507 /* Deal with input etc */
 508 VG_STATIC void player_update_pre(void)
 509 {
 510    struct player_phys *phys = &player.phys;
 511
 512
 513    {
 514       v3f ra, rb, rx;
 515       v3_copy( main_camera.pos, ra );
 516       v3_muladds( ra, main_camera.transform[2], -10.0f, rb );
 517
 518       float t;
 519       if( spherecast_world( ra, rb, 0.4f, &t, rx ) != -1 )
 520       {
 521          m4x3f mtx;
 522          m3x3_identity( mtx );
 523          v3_lerp( ra, rb, t, mtx[3] );
 524
 525          debug_sphere( mtx, 0.4f, 0xff00ff00 );
 526
 527          v3f x1;
 528          v3_muladds( mtx[3], rx, 0.4f, x1 );
 529          vg_line( mtx[3], x1, 0xffffffff );
 530       }
 531    }
 532
 533
 534
 535
 536
 537
 538
 539
 540    if( player.rewinding )
 541       return;
 542
 543    if( vg_input_button_down( player.input_reset ) && !menu_enabled() )
 544    {
 545       double delta = world.time - world.last_use;
 546
 547       if( (delta <= RESET_MAX_TIME) && (world.last_use != 0.0) )
 548       {
 549          player.rewinding = 1;
 550          player.rewind_sound_wait = 1;
 551          player.rewind_time = (float)player.rewind_length - 0.0001f;
 552          player_save_rewind_frame();
 553          audio_lock();
 554          audio_play_oneshot( &audio_rewind[0], 1.0f );
 555          audio_unlock();
 556
 557          /* based on analytical testing. DONT CHANGE!
 558           *
 559           *    time taken: y = (x^(4/5)) * 74.5
 560           *    inverse   : x = (2/149)^(4/5) * y^(4/5)
 561           */
 562
 563          float constant = powf( 2.0f/149.0f, 4.0f/5.0f ),
 564                curve    = powf( player.rewind_total_length, 4.0f/5.0f );
 565
 566          player.rewind_predicted_time = constant * curve;
 567          player.diag_rewind_start = vg.time;
 568          player.diag_rewind_time  = player.rewind_time;
 569
 570          player.is_dead = 0;
 571          player.death_tick_allowance = 30;
 572          player_restore_frame();
 573
 574          if( !phys->on_board )
 575          {
 576             player.angles[0] = atan2f( -phys->rb.forward[2],
 577                                        -phys->rb.forward[0] );
 578          }
 579
 580          player.mdl.shoes[0] = 1;
 581          player.mdl.shoes[1] = 1;
 582
 583          world_routes_notify_reset();
 584
 585          /* apply 1 frame of movement */
 586          player_do_motion();
 587       }
 588       else
 589       {
 590          if( player.is_dead )
 591          {
 592             reset_player( 0, NULL );
 593          }
 594          else
 595          {
 596             /* cant do that */
 597             audio_lock();
 598             audio_play_oneshot( &audio_rewind[4], 1.0f );
 599             audio_unlock();
 600          }
 601       }
 602    }
 603
 604    if( vg_input_button_down( player.input_switch_mode ) && !menu_enabled() )
 605    {
 606       phys->on_board ^= 0x1;
 607
 608       audio_lock();
 609       if( phys->on_board )
 610       {
 611          v3_muladds( phys->rb.v, phys->rb.forward, 0.2f, phys->rb.v );
 612          audio_play_oneshot( &audio_lands[6], 1.0f );
 613       }
 614       else
 615       {
 616          audio_play_oneshot( &audio_lands[5], 1.0f );
 617       }
 618
 619       audio_unlock();
 620    }
 621
 622    if( !phys->on_board )
 623       player_mouseview();
 624 }
 625
 626 VG_STATIC void player_update_fixed(void)                                 /* 2 */
 627 {
 628    if( player.rewinding )
 629       return;
 630
 631    if( player.death_tick_allowance )
 632       player.death_tick_allowance --;
 633
 634    struct player_phys *phys = &player.phys;
 635
 636    if( player.is_dead )
 637    {
 638       player_ragdoll_iter();
 639    }
 640    else
 641    {
 642       player.rewind_incrementer ++;
 643
 644       if( player.rewind_incrementer > (u32)(0.25/VG_TIMESTEP_FIXED) )
 645       {
 646          player_save_rewind_frame();
 647       }
 648
 649       player_do_motion();
 650    }
 651 }
 652
 653 VG_STATIC void player_update_post(void)
 654 {
 655    for( int i=0; i<player.prediction_count; i++ )
 656    {
 657       struct land_prediction *p = &player.predictions[i];
 658
 659       for( int j=0; j<p->log_length - 1; j ++ )
 660          vg_line( p->log[j], p->log[j+1], p->colour );
 661
 662       vg_line_cross( p->log[p->log_length-1], p->colour, 0.25f );
 663
 664       v3f p1;
 665       v3_add( p->log[p->log_length-1], p->n, p1 );
 666       vg_line( p->log[p->log_length-1], p1, 0xffffffff );
 667    }
 668
 669    if( player.is_dead )
 670    {
 671       player_debug_ragdoll();
 672
 673       if( !freecam )
 674          player_animate_death_cam();
 675    }
 676    else
 677    {
 678       player_animate();
 679
 680       if( !freecam )
 681       {
 682          if( cl_thirdperson )
 683             player_animate_camera_thirdperson();
 684          else
 685             player_animate_camera();
 686       }
 687    }
 688
 689    if( freecam )
 690       player_freecam();
 691
 692    /* CAMERA POSITIONING: LAYER 0 */
 693    v2_copy( player.angles, main_camera.angles );
 694    v3_copy( player.camera_pos, main_camera.pos );
 695
 696    if( player.rewinding )
 697    {
 698       if( player.rewind_time <= 0.0f )
 699       {
 700          double taken = vg.time - player.diag_rewind_start;
 701          vg_success( "Rewind took (rt, pl, tl): %f, %f, %f\n",
 702                            taken, player.diag_rewind_time,
 703                            player.rewind_total_length );
 704
 705          player.rewinding = 0;
 706          player.rewind_length = 1;
 707          player.rewind_total_length = 0.0f;
 708          player.rewind_incrementer = 0;
 709          world.sky_target_rate = 1.0;
 710       }
 711       else
 712       {
 713          world.sky_target_rate = -100.0;
 714          assert( player.rewind_length > 0 );
 715
 716          v2f override_angles;
 717          v3f override_pos;
 718
 719          float budget         = vg.time_delta,
 720                overall_length = player.rewind_length;
 721
 722          world_routes_rollback_time( player.rewind_time / overall_length );
 723
 724          for( int i=0; (i<10)&&(player.rewind_time>0.0f)&&(budget>0.0f); i ++ )
 725          {
 726             /* Interpolate frames */
 727             int i0 = floorf( player.rewind_time ),
 728                 i1 = VG_MIN( i0+1, player.rewind_length-1 );
 729
 730             struct rewind_frame *fr =  &player.rewind_buffer[i0],
 731                                 *fr1 = &player.rewind_buffer[i1];
 732
 733             float dist = vg_maxf( v3_dist( fr->pos, fr1->pos ), 0.001f ),
 734                   subl = vg_fractf( player.rewind_time ) + 0.001f,
 735
 736                   sramp= 3.0f-(1.0f/(0.4f+0.4f*player.rewind_time)),
 737                   speed = sramp*28.0f + 0.5f*player.rewind_time,
 738                   mod  = speed * (budget / dist),
 739
 740                   advl = vg_minf( mod, subl ),
 741                   advt = (advl / mod) * budget;
 742
 743             player.dist_accum += speed * advt;
 744             player.rewind_time -= advl;
 745             budget -= advt;
 746          }
 747
 748          player.rewind_time = vg_maxf( 0.0f, player.rewind_time );
 749
 750          float current_time = vg.time - player.diag_rewind_start,
 751                remaining    = player.rewind_predicted_time - current_time;
 752
 753          if( player.rewind_sound_wait )
 754          {
 755             if( player.rewind_predicted_time >= 6.5f )
 756             {
 757                if( remaining <= 6.5f )
 758                {
 759                   audio_lock();
 760                   audio_play_oneshot( &audio_rewind[3], 1.0f );
 761                   audio_unlock();
 762                   player.rewind_sound_wait = 0;
 763                }
 764             }
 765             else if( player.rewind_predicted_time >= 2.5f )
 766             {
 767                if( remaining <= 2.5f )
 768                {
 769                   audio_lock();
 770                   audio_play_oneshot( &audio_rewind[2], 1.0f );
 771                   audio_unlock();
 772                   player.rewind_sound_wait = 0;
 773                }
 774             }
 775             else if( player.rewind_predicted_time >= 1.5f )
 776             {
 777                if( remaining <= 1.5f )
 778                {
 779                   audio_lock();
 780                   audio_play_oneshot( &audio_rewind[1], 1.0f );
 781                   audio_unlock();
 782                   player.rewind_sound_wait = 0;
 783                }
 784             }
 785          }
 786
 787          int i0 = floorf( player.rewind_time ),
 788              i1 = VG_MIN( i0+1, player.rewind_length-1 );
 789
 790          struct rewind_frame *fr =  &player.rewind_buffer[i0],
 791                              *fr1 = &player.rewind_buffer[i1];
 792
 793          float sub = vg_fractf(player.rewind_time);
 794
 795          v3_lerp( fr->pos, fr1->pos, sub, override_pos );
 796          override_angles[0] = vg_alerpf( fr->ang[0], fr1->ang[0], sub );
 797          override_angles[1] = vg_lerpf ( fr->ang[1], fr1->ang[1], sub );
 798
 799          /* CAMERA POSITIONING: LAYER 1 */
 800          float blend = (4.0f-player.rewind_time) * 0.25f,
 801                c     = vg_clampf( blend, 0.0f, 1.0f );
 802
 803          main_camera.angles[0] =
 804             vg_alerpf(override_angles[0], player.angles[0], c);
 805          main_camera.angles[1] =
 806             vg_lerpf (override_angles[1], player.angles[1], c);
 807          v3_lerp( override_pos, player.camera_pos, c, main_camera.pos );
 808       }
 809    }
 810
 811    camera_update_transform( &main_camera );
 812    player_audio();
 813 }
 814
 815 VG_STATIC void draw_player( camera *cam )
 816 {
 817    if( player.is_dead )
 818       player_model_copy_ragdoll();
 819
 820    shader_viewchar_use();
 821    vg_tex2d_bind( &tex_characters, 0 );
 822    shader_viewchar_uTexMain( 0 );
 823    shader_viewchar_uCamera( cam->transform[3] );
 824    shader_viewchar_uPv( cam->mtx.pv );
 825    shader_link_standard_ub( _shader_viewchar.id, 2 );
 826    glUniformMatrix4x3fv( _uniform_viewchar_uTransforms,
 827                          player.mdl.sk.bone_count,
 828                          0,
 829                          (float *)player.mdl.sk.final_mtx );
 830
 831    mesh_bind( &player.mdl.player_meshes[cl_playermdl_id] );
 832    mesh_draw( &player.mdl.player_meshes[cl_playermdl_id] );
 833 }
 834
 835 /*
 836  * -----------------------------------------------------------------------------
 837  *                              API implementation
 838  * -----------------------------------------------------------------------------
 839  */
 840
 841 VG_STATIC float *player_get_pos(void)
 842 {
 843    return player.phys.rb.co;
 844 }
 845
 846 VG_STATIC void player_kill(void)
 847 {
 848    if( player.death_tick_allowance == 0 )
 849    {
 850       player.is_dead = 1;
 851       player_ragdoll_copy_model( player.phys.rb.v );
 852    }
 853 }
 854
 855 VG_STATIC float *player_cam_pos(void)
 856 {
 857    return player.camera_pos;
 858 }
 859
 860
 861 #endif /* PLAYER_H */