qcsrc/server/cl_physics.qc

   1 .float race_penalty;
   2 .float restart_jump;
   3
   4 float sv_accelerate;
   5 float sv_friction;
   6 float sv_maxspeed;
   7 float sv_airaccelerate;
   8 float sv_maxairspeed;
   9 float sv_stopspeed;
  10 float sv_gravity;
  11 float sv_airaccel_sideways_friction;
  12 float sv_airaccel_qw;
  13 float sv_airstopaccelerate;
  14 float sv_airstrafeaccelerate;
  15 float sv_maxairstrafespeed;
  16 float sv_airstrafeaccel_qw;
  17 float sv_aircontrol;
  18 float sv_aircontrol_power;
  19 float sv_warsowbunny_airforwardaccel;
  20 float sv_warsowbunny_accel;
  21 float sv_warsowbunny_topspeed;
  22 float sv_warsowbunny_turnaccel;
  23 float sv_warsowbunny_backtosideratio;
  24
  25 .float ladder_time;
  26 .entity ladder_entity;
  27 .float gravity;
  28 .float swamp_slowdown;
  29 .float lastflags;
  30 .float lastground;
  31 .float wasFlying;
  32 .float spectatorspeed;
  33
  34 /*
  35 =============
  36 PlayerJump
  37
  38 When you press the jump key
  39 =============
  40 */
  41 void PlayerJump (void)
  42 {
  43         float mjumpheight;
  44
  45         mjumpheight = cvar("sv_jumpvelocity");
  46         if (self.waterlevel >= WATERLEVEL_SWIMMING)
  47         {
  48                 if (self.watertype == CONTENT_WATER)
  49                         self.velocity_z = 200;
  50                 else if (self.watertype == CONTENT_SLIME)
  51                         self.velocity_z = 80;
  52                 else
  53                         self.velocity_z = 50;
  54
  55                 return;
  56         }
  57
  58         if (!(self.flags & FL_ONGROUND))
  59                 return;
  60
  61         if(!sv_pogostick)
  62                 if (!(self.flags & FL_JUMPRELEASED))
  63                         return;
  64
  65         if(self.health <= g_bloodloss)
  66                 return;
  67
  68         if(g_runematch)
  69         {
  70                 if(self.runes & RUNE_SPEED)
  71                 {
  72                         if(self.runes & CURSE_SLOW)
  73                                 mjumpheight = mjumpheight * cvar("g_balance_rune_speed_combo_jumpheight");
  74                         else
  75                                 mjumpheight = mjumpheight * cvar("g_balance_rune_speed_jumpheight");
  76                 }
  77                 else if(self.runes & CURSE_SLOW)
  78                 {
  79                         mjumpheight = mjumpheight * cvar("g_balance_curse_slow_jumpheight");
  80                 }
  81         }
  82
  83         if(g_minstagib && (self.items & IT_INVINCIBLE))
  84         {
  85                 mjumpheight = mjumpheight * cvar("g_minstagib_speed_jumpheight");
  86         }
  87
  88         if(cvar_string("sv_jumpspeedcap_min") != "")
  89                 self.velocity_z = max(cvar("sv_jumpvelocity") * cvar("sv_jumpspeedcap_min"), self.velocity_z);
  90         if(cvar_string("sv_jumpspeedcap_max") != "") {
  91                 if(trace_fraction < 1 && trace_plane_normal_z < 0.98 && cvar("sv_jumpspeedcap_max_disable_on_ramps")) {
  92                         // don't do jump speedcaps on ramps to preserve old xonotic ramjump style
  93                         //print("Trace plane normal z: ", ftos(trace_plane_normal_z), ", disabling speed cap!\n");
  94                 }
  95                 else
  96                         self.velocity_z = min(cvar("sv_jumpvelocity") * cvar("sv_jumpspeedcap_max"), self.velocity_z) + trace_ent.velocity_z;
  97         }
  98
  99         if(!(self.lastflags & FL_ONGROUND))
 100         {
 101                 if(cvar("speedmeter"))
 102                         dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
 103                 if(self.lastground < time - 0.3)
 104                 {
 105                         self.velocity_x *= (1 - cvar("sv_friction_on_land"));
 106                         self.velocity_y *= (1 - cvar("sv_friction_on_land"));
 107                 }
 108                 if(self.jumppadcount > 1)
 109                         dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
 110                 self.jumppadcount = 0;
 111         }
 112
 113         self.velocity_z = self.velocity_z + mjumpheight;
 114         self.oldvelocity_z = self.velocity_z;
 115
 116         self.flags &~= FL_ONGROUND;
 117         self.flags &~= FL_JUMPRELEASED;
 118
 119         if (self.crouch)
 120                 setanim(self, self.anim_duckjump, FALSE, TRUE, TRUE);
 121         else
 122                 setanim(self, self.anim_jump, FALSE, TRUE, TRUE);
 123
 124         if(g_jump_grunt)
 125                 PlayerSound(playersound_jump, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 126
 127         self.restart_jump = -1; // restart jump anim next time
 128         // value -1 is used to not use the teleport bit (workaround for tiny hitch when re-jumping)
 129 }
 130
 131 void CheckWaterJump()
 132 {
 133         local vector start, end;
 134
 135 // check for a jump-out-of-water
 136         makevectors (self.angles);
 137         start = self.origin;
 138         start_z = start_z + 8;
 139         v_forward_z = 0;
 140         normalize(v_forward);
 141         end = start + v_forward*24;
 142         traceline (start, end, TRUE, self);
 143         if (trace_fraction < 1)
 144         {       // solid at waist
 145                 start_z = start_z + self.maxs_z - 8;
 146                 end = start + v_forward*24;
 147                 self.movedir = trace_plane_normal * -50;
 148                 traceline (start, end, TRUE, self);
 149                 if (trace_fraction == 1)
 150                 {       // open at eye level
 151                         self.flags |= FL_WATERJUMP;
 152                         self.velocity_z = 225;
 153                         self.flags &~= FL_JUMPRELEASED;
 154                         self.teleport_time = time + 2;  // safety net
 155                         return;
 156                 }
 157         }
 158 };
 159
 160 float racecar_angle(float forward, float down)
 161 {
 162         float ret, angle_mult;
 163
 164         if(forward < 0)
 165         {
 166                 forward = -forward;
 167                 down = -down;
 168         }
 169
 170         ret = vectoyaw('0 1 0' * down + '1 0 0' * forward);
 171
 172         angle_mult = forward / (800 + forward);
 173
 174         if(ret > 180)
 175                 return ret * angle_mult + 360 * (1 - angle_mult);
 176         else
 177                 return ret * angle_mult;
 178 }
 179
 180 void RaceCarPhysics()
 181 {
 182         // using this move type for "big rigs"
 183         // the engine does not push the entity!
 184
 185         float accel, steer, f;
 186         vector angles_save, rigvel;
 187
 188         angles_save = self.angles;
 189         accel = bound(-1, self.movement_x / sv_maxspeed, 1);
 190         steer = bound(-1, self.movement_y / sv_maxspeed, 1);
 191
 192         if(g_bugrigs_reverse_speeding)
 193         {
 194                 if(accel < 0)
 195                 {
 196                         // back accel is DIGITAL
 197                         // to prevent speedhack
 198                         if(accel < -0.5)
 199                                 accel = -1;
 200                         else
 201                                 accel = 0;
 202                 }
 203         }
 204
 205         self.angles_x = 0;
 206         self.angles_z = 0;
 207         makevectors(self.angles); // new forward direction!
 208
 209         if(self.flags & FL_ONGROUND || g_bugrigs_air_steering)
 210         {
 211                 float myspeed, upspeed, steerfactor, accelfactor;
 212
 213                 myspeed = self.velocity * v_forward;
 214                 upspeed = self.velocity * v_up;
 215
 216                 // responsiveness factor for steering and acceleration
 217                 f = 1 / (1 + pow(max(-myspeed, myspeed) / g_bugrigs_speed_ref, g_bugrigs_speed_pow));
 218                 //MAXIMA: f(v) := 1 / (1 + (v / g_bugrigs_speed_ref) ^ g_bugrigs_speed_pow);
 219
 220                 if(myspeed < 0 && g_bugrigs_reverse_spinning)
 221                         steerfactor = -myspeed * g_bugrigs_steer;
 222                 else
 223                         steerfactor = -myspeed * f * g_bugrigs_steer;
 224
 225                 if(myspeed < 0 && g_bugrigs_reverse_speeding)
 226                         accelfactor = g_bugrigs_accel;
 227                 else
 228                         accelfactor = f * g_bugrigs_accel;
 229                 //MAXIMA: accel(v) := f(v) * g_bugrigs_accel;
 230
 231                 if(accel < 0)
 232                 {
 233                         if(myspeed > 0)
 234                         {
 235                                 myspeed = max(0, myspeed - frametime * (g_bugrigs_friction_floor - g_bugrigs_friction_brake * accel));
 236                         }
 237                         else
 238                         {
 239                                 if(!g_bugrigs_reverse_speeding)
 240                                         myspeed = min(0, myspeed + frametime * g_bugrigs_friction_floor);
 241                         }
 242                 }
 243                 else
 244                 {
 245                         if(myspeed >= 0)
 246                         {
 247                                 myspeed = max(0, myspeed - frametime * g_bugrigs_friction_floor);
 248                         }
 249                         else
 250                         {
 251                                 if(g_bugrigs_reverse_stopping)
 252                                         myspeed = 0;
 253                                 else
 254                                         myspeed = min(0, myspeed + frametime * (g_bugrigs_friction_floor + g_bugrigs_friction_brake * accel));
 255                         }
 256                 }
 257                 // terminal velocity = velocity at which 50 == accelfactor, that is, 1549 units/sec
 258                 //MAXIMA: friction(v) := g_bugrigs_friction_floor;
 259
 260                 self.angles_y += steer * frametime * steerfactor; // apply steering
 261                 makevectors(self.angles); // new forward direction!
 262
 263                 myspeed += accel * accelfactor * frametime;
 264
 265                 rigvel = myspeed * v_forward + '0 0 1' * upspeed;
 266         }
 267         else
 268         {
 269                 myspeed = vlen(self.velocity);
 270
 271                 // responsiveness factor for steering and acceleration
 272                 f = 1 / (1 + pow(max(0, myspeed / g_bugrigs_speed_ref), g_bugrigs_speed_pow));
 273                 steerfactor = -myspeed * f;
 274                 self.angles_y += steer * frametime * steerfactor; // apply steering
 275
 276                 rigvel = self.velocity;
 277                 makevectors(self.angles); // new forward direction!
 278         }
 279
 280         rigvel = rigvel * max(0, 1 - vlen(rigvel) * g_bugrigs_friction_air * frametime);
 281         //MAXIMA: airfriction(v) := v * v * g_bugrigs_friction_air;
 282         //MAXIMA: total_acceleration(v) := accel(v) - friction(v) - airfriction(v);
 283         //MAXIMA: solve(total_acceleration(v) = 0, v);
 284
 285         if(g_bugrigs_planar_movement)
 286         {
 287                 vector rigvel_xy, neworigin, up;
 288                 float mt;
 289
 290                 rigvel_z -= frametime * sv_gravity; // 4x gravity plays better
 291                 rigvel_xy = rigvel;
 292                 rigvel_xy_z = 0;
 293
 294                 if(g_bugrigs_planar_movement_car_jumping && !g_touchexplode) // touchexplode is a better way to handle collisions
 295                         mt = MOVE_NORMAL;
 296                 else
 297                         mt = MOVE_NOMONSTERS;
 298
 299                 tracebox(self.origin, self.mins, self.maxs, self.origin + '0 0 1024', mt, self);
 300                 up = trace_endpos - self.origin;
 301
 302                 // BUG RIGS: align the move to the surface instead of doing collision testing
 303                 // can we move?
 304                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos + rigvel_xy * frametime, mt, self);
 305
 306                 // align to surface
 307                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos - up + '0 0 1' * rigvel_z * frametime, mt, self);
 308
 309                 if(trace_fraction < 0.5)
 310                 {
 311                         trace_fraction = 1;
 312                         neworigin = self.origin;
 313                 }
 314                 else
 315                         neworigin = trace_endpos;
 316
 317                 if(trace_fraction < 1)
 318                 {
 319                         // now set angles_x so that the car points parallel to the surface
 320                         self.angles = vectoangles(
 321                                         '1 0 0' * v_forward_x * trace_plane_normal_z
 322                                         +
 323                                         '0 1 0' * v_forward_y * trace_plane_normal_z
 324                                         +
 325                                         '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y)
 326                                         );
 327                         self.flags |= FL_ONGROUND;
 328                 }
 329                 else
 330                 {
 331                         // now set angles_x so that the car points forward, but is tilted in velocity direction
 332                         self.flags &~= FL_ONGROUND;
 333                 }
 334
 335                 self.velocity = (neworigin - self.origin) * (1.0 / frametime);
 336                 self.movetype = MOVETYPE_NOCLIP;
 337         }
 338         else
 339         {
 340                 rigvel_z -= frametime * sv_gravity; // 4x gravity plays better
 341                 self.velocity = rigvel;
 342                 self.movetype = MOVETYPE_FLY;
 343         }
 344
 345         trace_fraction = 1;
 346         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 4', MOVE_NORMAL, self);
 347         if(trace_fraction != 1)
 348         {
 349                 self.angles = vectoangles2(
 350                                 '1 0 0' * v_forward_x * trace_plane_normal_z
 351                                 +
 352                                 '0 1 0' * v_forward_y * trace_plane_normal_z
 353                                 +
 354                                 '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y),
 355                                 trace_plane_normal
 356                                 );
 357         }
 358         else
 359         {
 360                 vector vel_local;
 361
 362                 vel_local_x = v_forward * self.velocity;
 363                 vel_local_y = v_right * self.velocity;
 364                 vel_local_z = v_up * self.velocity;
 365
 366                 self.angles_x = racecar_angle(vel_local_x, vel_local_z);
 367                 self.angles_z = racecar_angle(-vel_local_y, vel_local_z);
 368         }
 369
 370         // smooth the angles
 371         vector vf1, vu1, smoothangles;
 372         makevectors(self.angles);
 373         f = bound(0, frametime * g_bugrigs_angle_smoothing, 1);
 374         if(f == 0)
 375                 f = 1;
 376         vf1 = v_forward * f;
 377         vu1 = v_up * f;
 378         makevectors(angles_save);
 379         vf1 = vf1 + v_forward * (1 - f);
 380         vu1 = vu1 + v_up * (1 - f);
 381         smoothangles = vectoangles2(vf1, vu1);
 382         self.angles_x = -smoothangles_x;
 383         self.angles_z =  smoothangles_z;
 384 }
 385
 386 float IsMoveInDirection(vector mv, float angle) // key mix factor
 387 {
 388         if(mv_x == 0 && mv_y == 0)
 389                 return 0; // avoid division by zero
 390         angle -= RAD2DEG * atan2(mv_y, mv_x);
 391         angle = remainder(angle, 360) / 45;
 392         if(angle >  1)
 393                 return 0;
 394         if(angle < -1)
 395                 return 0;
 396         return 1 - fabs(angle);
 397 }
 398
 399 float GeomLerp(float a, float lerp, float b)
 400 {
 401         if(a == 0)
 402         {
 403                 if(lerp < 1)
 404                         return 0;
 405                 else
 406                         return b;
 407         }
 408         if(b == 0)
 409         {
 410                 if(lerp > 0)
 411                         return 0;
 412                 else
 413                         return a;
 414         }
 415         return a * pow(fabs(b / a), lerp);
 416 }
 417
 418 void CPM_PM_Aircontrol(vector wishdir, float wishspeed)
 419 {
 420         float zspeed, xyspeed, dot, k;
 421
 422 #if 0
 423         // this doesn't play well with analog input
 424         if(self.movement_x == 0 || self.movement_y != 0)
 425                 return; // can't control movement if not moving forward or backward
 426         k = 32;
 427 #else
 428         k = 32 * (2 * IsMoveInDirection(self.movement, 0) - 1);
 429         if(k <= 0)
 430                 return;
 431 #endif
 432
 433         k *= bound(0, wishspeed / sv_maxairspeed, 1);
 434
 435         zspeed = self.velocity_z;
 436         self.velocity_z = 0;
 437         xyspeed = vlen(self.velocity); self.velocity = normalize(self.velocity);
 438
 439         dot = self.velocity * wishdir;
 440
 441         if(dot > 0) // we can't change direction while slowing down
 442         {
 443                 k *= fabs(sv_aircontrol)*pow(dot, sv_aircontrol_power)*frametime;
 444                 self.velocity = normalize(self.velocity * xyspeed + wishdir * k);
 445         }
 446
 447         self.velocity = self.velocity * xyspeed;
 448         self.velocity_z = zspeed;
 449 }
 450
 451 // example config for alternate speed clamping:
 452 //   sv_airaccel_qw 0.8
 453 //   sv_airaccel_sideways_friction 0
 454 //   prvm_globalset server speedclamp_mode 1
 455 //     (or 2)
 456 void PM_Accelerate(vector wishdir, float wishspeed, float wishspeed0, float accel, float accelqw, float sidefric)
 457 {
 458         float vel_straight;
 459         float vel_z;
 460         vector vel_perpend;
 461         float step;
 462
 463         vector vel_xy;
 464         float vel_xy_current;
 465         float vel_xy_backward, vel_xy_forward;
 466         float speedclamp;
 467
 468         speedclamp = (accelqw < 0);
 469         if(speedclamp)
 470                 accelqw = -accelqw;
 471
 472         if(cvar("sv_gameplayfix_q2airaccelerate"))
 473                 wishspeed0 = wishspeed;
 474
 475         vel_straight = self.velocity * wishdir;
 476         vel_z = self.velocity_z;
 477         vel_xy = self.velocity - vel_z * '0 0 1';
 478         vel_perpend = vel_xy - vel_straight * wishdir;
 479
 480         step = accel * frametime * wishspeed0;
 481
 482         vel_xy_current  = vlen(vel_xy);
 483         vel_xy_forward  = vel_xy_current + bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
 484         vel_xy_backward = vel_xy_current - bound(0, wishspeed + vel_xy_current, step) * accelqw - step * (1 - accelqw);
 485         if(vel_xy_backward < 0)
 486                 vel_xy_backward = 0; // not that it REALLY occurs that this would cause wrong behaviour afterwards
 487
 488         vel_straight = vel_straight + bound(0, wishspeed - vel_straight, step) * accelqw + step * (1 - accelqw);
 489
 490         if(sidefric < 0 && (vel_perpend*vel_perpend))
 491                 // negative: only apply so much sideways friction to stay below the speed you could get by "braking"
 492         {
 493                 float f, fminimum;
 494                 f = max(0, 1 + frametime * wishspeed * sidefric);
 495                 fminimum = (vel_xy_backward*vel_xy_backward - vel_straight*vel_straight) / (vel_perpend*vel_perpend);
 496                 // this cannot be > 1
 497                 if(fminimum <= 0)
 498                         vel_perpend = vel_perpend * max(0, f);
 499                 else
 500                 {
 501                         fminimum = sqrt(fminimum);
 502                         vel_perpend = vel_perpend * max(fminimum, f);
 503                 }
 504         }
 505         else
 506                 vel_perpend = vel_perpend * max(0, 1 - frametime * wishspeed * sidefric);
 507
 508         vel_xy = vel_straight * wishdir + vel_perpend;
 509
 510         if(speedclamp)
 511         {
 512                 // ensure we don't get too fast or decelerate faster than we should
 513                 vel_xy_current = min(vlen(vel_xy), vel_xy_forward);
 514                 if(vel_xy_current > 0) // prevent division by zero
 515                         vel_xy = normalize(vel_xy) * vel_xy_current;
 516         }
 517
 518         self.velocity = vel_xy + vel_z * '0 0 1';
 519 }
 520
 521 void PM_AirAccelerate(vector wishdir, float wishspeed)
 522 {
 523         vector curvel, wishvel, acceldir, curdir;
 524         float addspeed, accelspeed, curspeed, f;
 525         float dot;
 526
 527         if(wishspeed == 0)
 528                 return;
 529
 530         curvel = self.velocity;
 531         curvel_z = 0;
 532         curspeed = vlen(curvel);
 533
 534         if(wishspeed > curspeed * 1.01)
 535         {
 536                 wishspeed = min(wishspeed, curspeed + sv_warsowbunny_airforwardaccel * sv_maxspeed * frametime);
 537         }
 538         else
 539         {
 540                 f = max(0, (sv_warsowbunny_topspeed - curspeed) / (sv_warsowbunny_topspeed - sv_maxspeed));
 541                 wishspeed = max(curspeed, sv_maxspeed) + sv_warsowbunny_accel * f * sv_maxspeed * frametime;
 542         }
 543         wishvel = wishdir * wishspeed;
 544         acceldir = wishvel - curvel;
 545         addspeed = vlen(acceldir);
 546         acceldir = normalize(acceldir);
 547
 548         accelspeed = min(addspeed, sv_warsowbunny_turnaccel * sv_maxspeed * frametime);
 549
 550         if(sv_warsowbunny_backtosideratio < 1)
 551         {
 552                 curdir = normalize(curvel);
 553                 dot = acceldir * curdir;
 554                 if(dot < 0)
 555                         acceldir = acceldir - (1 - sv_warsowbunny_backtosideratio) * dot * curdir;
 556         }
 557
 558         self.velocity += accelspeed * acceldir;
 559 }
 560
 561 .vector movement_old;
 562 .float buttons_old;
 563 .vector v_angle_old;
 564 .string lastclassname;
 565
 566 .float() PlayerPhysplug;
 567
 568 string specialcommand = "xwxwxsxsxaxdxaxdx1x ";
 569 .float specialcommand_pos;
 570 void SpecialCommand()
 571 {
 572 #ifdef TETRIS
 573         TetrisImpulse();
 574 #else
 575         if(!CheatImpulse(99))
 576                 print("A hollow voice says \"Plugh\".\n");
 577 #endif
 578 }
 579
 580 float speedaward_speed;
 581 string speedaward_holder;
 582 void race_send_speedaward(float msg)
 583 {
 584         // send the best speed of the round
 585         WriteByte(msg, SVC_TEMPENTITY);
 586         WriteByte(msg, TE_CSQC_RACE);
 587         WriteByte(msg, RACE_NET_SPEED_AWARD);
 588         WriteInt24_t(msg, floor(speedaward_speed+0.5));
 589         WriteString(msg, speedaward_holder);
 590 }
 591
 592 float speedaward_alltimebest;
 593 string speedaward_alltimebest_holder;
 594 void race_send_speedaward_alltimebest(float msg)
 595 {
 596         // send the best speed
 597         WriteByte(msg, SVC_TEMPENTITY);
 598         WriteByte(msg, TE_CSQC_RACE);
 599         WriteByte(msg, RACE_NET_SPEED_AWARD_BEST);
 600         WriteInt24_t(msg, floor(speedaward_alltimebest+0.5));
 601         WriteString(msg, speedaward_alltimebest_holder);
 602 }
 603
 604 string GetMapname(void);
 605 float speedaward_lastupdate;
 606 float speedaward_lastsent;
 607 .float jumppadusetime;
 608 var float autocvar_g_movement_highspeed = 1;
 609 void SV_PlayerPhysics()
 610 {
 611         local vector wishvel, wishdir, v;
 612         local float wishspeed, f, maxspd_mod, spd, maxairspd, airaccel, swampspd_mod, buttons;
 613         string temps;
 614         float buttons_prev;
 615         float not_allowed_to_move;
 616         string c;
 617
 618         // fix physics stats for g_movement_highspeed
 619         self.stat_sv_airaccel_qw = copysign(bound(0, 1-(1-fabs(sv_airaccel_qw))*autocvar_g_movement_highspeed, 1), sv_airaccel_qw);
 620         if(sv_airstrafeaccel_qw)
 621                 self.stat_sv_airstrafeaccel_qw = copysign(bound(0.001, 1-(1-fabs(sv_airstrafeaccel_qw))*autocvar_g_movement_highspeed, 1), sv_airstrafeaccel_qw);
 622         else
 623                 self.stat_sv_airstrafeaccel_qw = 0;
 624
 625     if(self.PlayerPhysplug)
 626         if(self.PlayerPhysplug())
 627             return;
 628
 629         self.race_movetime_frac += frametime;
 630         f = floor(self.race_movetime_frac);
 631         self.race_movetime_frac -= f;
 632         self.race_movetime_count += f;
 633         self.race_movetime = self.race_movetime_frac + self.race_movetime_count;
 634
 635         anticheat_physics();
 636
 637         buttons = self.BUTTON_ATCK + 2 * self.BUTTON_JUMP + 4 * self.BUTTON_ATCK2 + 8 * self.BUTTON_ZOOM + 16 * self.BUTTON_CROUCH + 32 * self.BUTTON_HOOK + 64 * self.BUTTON_USE + 128 * (self.movement_x < 0) + 256 * (self.movement_x > 0) + 512 * (self.movement_y < 0) + 1024 * (self.movement_y > 0);
 638
 639         if(!buttons)
 640                 c = "x";
 641         else if(buttons == 1)
 642                 c = "1";
 643         else if(buttons == 2)
 644                 c = " ";
 645         else if(buttons == 128)
 646                 c = "s";
 647         else if(buttons == 256)
 648                 c = "w";
 649         else if(buttons == 512)
 650                 c = "a";
 651         else if(buttons == 1024)
 652                 c = "d";
 653         else
 654                 c = "?";
 655
 656         if(c == substring(specialcommand, self.specialcommand_pos, 1))
 657         {
 658                 self.specialcommand_pos += 1;
 659                 if(self.specialcommand_pos >= strlen(specialcommand))
 660                 {
 661                         self.specialcommand_pos = 0;
 662                         SpecialCommand();
 663                         return;
 664                 }
 665         }
 666         else if(self.specialcommand_pos && (c != substring(specialcommand, self.specialcommand_pos - 1, 1)))
 667                 self.specialcommand_pos = 0;
 668
 669         if(!sv_maxidle_spectatorsareidle || self.movetype == MOVETYPE_WALK)
 670         {
 671                 if(buttons != self.buttons_old || self.movement != self.movement_old || self.v_angle != self.v_angle_old)
 672                         self.parm_idlesince = time;
 673         }
 674         buttons_prev = self.buttons_old;
 675         self.buttons_old = buttons;
 676         self.movement_old = self.movement;
 677         self.v_angle_old = self.v_angle;
 678
 679         if(time < self.nickspamtime)
 680         if(self.nickspamcount >= cvar("g_nick_flood_penalty_yellow"))
 681         {
 682                 // slight annoyance for nick change scripts
 683                 self.movement = -1 * self.movement;
 684                 self.BUTTON_ATCK = self.BUTTON_JUMP = self.BUTTON_ATCK2 = self.BUTTON_ZOOM = self.BUTTON_CROUCH = self.BUTTON_HOOK = self.BUTTON_USE = 0;
 685
 686                 if(self.nickspamcount >= cvar("g_nick_flood_penalty_red")) // if you are persistent and the slight annoyance above does not stop you, I'll show you!
 687                 {
 688                         self.angles_x = random() * 360;
 689                         self.angles_y = random() * 360;
 690                         // at least I'm not forcing retardedview by also assigning to angles_z
 691                         self.fixangle = 1;
 692                 }
 693         }
 694
 695         if (self.punchangle != '0 0 0')
 696         {
 697                 f = vlen(self.punchangle) - 10 * frametime;
 698                 if (f > 0)
 699                         self.punchangle = normalize(self.punchangle) * f;
 700                 else
 701                         self.punchangle = '0 0 0';
 702         }
 703
 704         if (self.punchvector != '0 0 0')
 705         {
 706                 f = vlen(self.punchvector) - 30 * frametime;
 707                 if (f > 0)
 708                         self.punchvector = normalize(self.punchvector) * f;
 709                 else
 710                         self.punchvector = '0 0 0';
 711         }
 712
 713         if (clienttype(self) == CLIENTTYPE_BOT)
 714         {
 715                 if(playerdemo_read())
 716                         return;
 717                 bot_think();
 718         }
 719
 720         MUTATOR_CALLHOOK(PlayerPhysics);
 721
 722         self.items &~= IT_USING_JETPACK;
 723
 724         if(self.classname == "player")
 725         {
 726                 if(self.race_penalty)
 727                         if(time > self.race_penalty)
 728                                 self.race_penalty = 0;
 729
 730                 not_allowed_to_move = 0;
 731                 if(self.race_penalty)
 732                         not_allowed_to_move = 1;
 733                 if(!cvar("sv_ready_restart_after_countdown"))
 734                 if(time < game_starttime)
 735                         not_allowed_to_move = 1;
 736
 737                 if(not_allowed_to_move)
 738                 {
 739                         self.velocity = '0 0 0';
 740                         self.movetype = MOVETYPE_NONE;
 741                         self.disableclientprediction = 2;
 742                 }
 743                 else if(self.disableclientprediction == 2)
 744                 {
 745                         if(self.movetype == MOVETYPE_NONE)
 746                                 self.movetype = MOVETYPE_WALK;
 747                         self.disableclientprediction = 0;
 748                 }
 749         }
 750
 751         if (self.movetype == MOVETYPE_NONE)
 752                 return;
 753
 754         maxspd_mod = 1;
 755
 756         if(g_runematch)
 757         {
 758                 if(self.runes & RUNE_SPEED)
 759                 {
 760                         if(self.runes & CURSE_SLOW)
 761                                 maxspd_mod = maxspd_mod * cvar("g_balance_rune_speed_combo_moverate");
 762                         else
 763                                 maxspd_mod = maxspd_mod * cvar("g_balance_rune_speed_moverate");
 764                 }
 765                 else if(self.runes & CURSE_SLOW)
 766                 {
 767                         maxspd_mod = maxspd_mod * cvar("g_balance_curse_slow_moverate");
 768                 }
 769         }
 770
 771         if(g_minstagib && (self.items & IT_INVINCIBLE))
 772         {
 773                 maxspd_mod = cvar("g_minstagib_speed_moverate");
 774         }
 775
 776         if(g_nexball && self.ballcarried)
 777         {
 778                 maxspd_mod = cvar("g_nexball_basketball_carrier_speed");
 779         }
 780
 781         swampspd_mod = 1;
 782         if(self.in_swamp) {
 783                 swampspd_mod = self.swamp_slowdown; //cvar("g_balance_swamp_moverate");
 784         }
 785
 786         if(self.classname != "player")
 787         {
 788                 maxspd_mod = cvar("sv_spectator_speed_multiplier");
 789                 if(!self.spectatorspeed)
 790                         self.spectatorspeed = maxspd_mod;
 791                 if(self.impulse && self.impulse <= 19)
 792                 {
 793                         if(self.lastclassname != "player")
 794                         {
 795                                 if(self.impulse == 10 || self.impulse == 15 || self.impulse == 18)
 796                                         self.spectatorspeed = bound(1, self.spectatorspeed + 0.5, 5);
 797                                 else if(self.impulse == 11)
 798                                         self.spectatorspeed = maxspd_mod;
 799                                 else if(self.impulse == 12 || self.impulse == 16  || self.impulse == 19)
 800                                         self.spectatorspeed = bound(1, self.spectatorspeed - 0.5, 5);
 801                                 else if(self.impulse >= 1 && self.impulse <= 9)
 802                                         self.spectatorspeed = 1 + 0.5 * (self.impulse - 1);
 803                         } // otherwise just clear
 804                         self.impulse = 0;
 805                 }
 806                 maxspd_mod = self.spectatorspeed;
 807         }
 808
 809         spd = max(sv_maxspeed, sv_maxairspeed) * maxspd_mod * swampspd_mod;
 810         if(self.speed != spd)
 811         {
 812                 self.speed = spd;
 813                 temps = ftos(spd);
 814                 stuffcmd(self, strcat("cl_forwardspeed ", temps, "\n"));
 815                 stuffcmd(self, strcat("cl_backspeed ", temps, "\n"));
 816                 stuffcmd(self, strcat("cl_sidespeed ", temps, "\n"));
 817                 stuffcmd(self, strcat("cl_upspeed ", temps, "\n"));
 818         }
 819
 820         maxspd_mod *= swampspd_mod; // only one common speed modder please!
 821         swampspd_mod = 1;
 822
 823         // if dead, behave differently
 824         if (self.deadflag)
 825                 goto end;
 826
 827         if (!self.fixangle && !g_bugrigs)
 828         {
 829                 self.angles_x = 0;
 830                 self.angles_y = self.v_angle_y;
 831                 self.angles_z = 0;
 832         }
 833
 834         if(self.flags & FL_ONGROUND)
 835         if(self.wasFlying)
 836         {
 837                 self.wasFlying = 0;
 838
 839                 if(self.waterlevel < WATERLEVEL_SWIMMING)
 840                 if(time >= self.ladder_time)
 841                 if not(self.hook)
 842                 {
 843                         self.nextstep = time + 0.3 + random() * 0.1;
 844                         trace_dphitq3surfaceflags = 0;
 845                         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 1', MOVE_NOMONSTERS, self);
 846                         if not(trace_dphitq3surfaceflags & Q3SURFACEFLAG_NOSTEPS)
 847                         {
 848                                 if(trace_dphitq3surfaceflags & Q3SURFACEFLAG_METALSTEPS)
 849                                         GlobalSound(globalsound_metalfall, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 850                                 else
 851                                         GlobalSound(globalsound_fall, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 852                         }
 853                 }
 854         }
 855
 856         if(IsFlying(self))
 857                 self.wasFlying = 1;
 858
 859         if(self.classname == "player")
 860         {
 861                 if(sv_doublejump && time - self.jumppadusetime > 2 * sys_frametime)
 862                 {
 863                         tracebox(self.origin + '0 0 0.01', self.mins, self.maxs, self.origin - '0 0 0.01', MOVE_NORMAL, self);
 864                         self.flags &~= FL_ONGROUND;
 865                         if(trace_fraction < 1 && trace_plane_normal_z > 0.7)
 866                                 self.flags |= FL_ONGROUND;
 867                 }
 868
 869                 if (self.BUTTON_JUMP)
 870                         PlayerJump ();
 871                 else
 872                         self.flags |= FL_JUMPRELEASED;
 873
 874                 if (self.waterlevel == WATERLEVEL_SWIMMING)
 875                         CheckWaterJump ();
 876         }
 877
 878         if (self.flags & FL_WATERJUMP )
 879         {
 880                 self.velocity_x = self.movedir_x;
 881                 self.velocity_y = self.movedir_y;
 882                 if (time > self.teleport_time || self.waterlevel == WATERLEVEL_NONE)
 883                 {
 884                         self.flags &~= FL_WATERJUMP;
 885                         self.teleport_time = 0;
 886                 }
 887         }
 888         else if (g_bugrigs && self.classname == "player")
 889         {
 890                 RaceCarPhysics();
 891         }
 892         else if (self.movetype == MOVETYPE_NOCLIP || self.movetype == MOVETYPE_FLY)
 893         {
 894                 // noclipping or flying
 895                 self.flags &~= FL_ONGROUND;
 896
 897                 self.velocity = self.velocity * (1 - frametime * sv_friction);
 898                 makevectors(self.v_angle);
 899                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 900                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
 901                 // acceleration
 902                 wishdir = normalize(wishvel);
 903                 wishspeed = vlen(wishvel);
 904                 if (wishspeed > sv_maxspeed*maxspd_mod)
 905                         wishspeed = sv_maxspeed*maxspd_mod;
 906                 if (time >= self.teleport_time)
 907                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0);
 908         }
 909         else if (self.waterlevel >= WATERLEVEL_SWIMMING)
 910         {
 911                 // swimming
 912                 self.flags &~= FL_ONGROUND;
 913
 914                 makevectors(self.v_angle);
 915                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 916                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
 917                 if (wishvel == '0 0 0')
 918                         wishvel = '0 0 -60'; // drift towards bottom
 919
 920                 wishdir = normalize(wishvel);
 921                 wishspeed = vlen(wishvel);
 922                 if (wishspeed > sv_maxspeed*maxspd_mod)
 923                         wishspeed = sv_maxspeed*maxspd_mod;
 924                 wishspeed = wishspeed * 0.7;
 925
 926                 // water friction
 927                 self.velocity = self.velocity * (1 - frametime * sv_friction);
 928
 929                 // water acceleration
 930                 PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0);
 931         }
 932         else if (time < self.ladder_time)
 933         {
 934                 // on a spawnfunc_func_ladder or swimming in spawnfunc_func_water
 935                 self.flags &~= FL_ONGROUND;
 936
 937                 self.velocity = self.velocity * (1 - frametime * sv_friction);
 938                 makevectors(self.v_angle);
 939                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 940                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
 941                 if (self.gravity)
 942                         self.velocity_z = self.velocity_z + self.gravity * sv_gravity * frametime;
 943                 else
 944                         self.velocity_z = self.velocity_z + sv_gravity * frametime;
 945                 if (self.ladder_entity.classname == "func_water")
 946                 {
 947                         f = vlen(wishvel);
 948                         if (f > self.ladder_entity.speed)
 949                                 wishvel = wishvel * (self.ladder_entity.speed / f);
 950
 951                         self.watertype = self.ladder_entity.skin;
 952                         f = self.ladder_entity.origin_z + self.ladder_entity.maxs_z;
 953                         if ((self.origin_z + self.view_ofs_z) < f)
 954                                 self.waterlevel = WATERLEVEL_SUBMERGED;
 955                         else if ((self.origin_z + (self.mins_z + self.maxs_z) * 0.5) < f)
 956                                 self.waterlevel = WATERLEVEL_SWIMMING;
 957                         else if ((self.origin_z + self.mins_z + 1) < f)
 958                                 self.waterlevel = WATERLEVEL_WETFEET;
 959                         else
 960                         {
 961                                 self.waterlevel = WATERLEVEL_NONE;
 962                                 self.watertype = CONTENT_EMPTY;
 963                         }
 964                 }
 965                 // acceleration
 966                 wishdir = normalize(wishvel);
 967                 wishspeed = vlen(wishvel);
 968                 if (wishspeed > sv_maxspeed*maxspd_mod)
 969                         wishspeed = sv_maxspeed*maxspd_mod;
 970                 if (time >= self.teleport_time)
 971                 {
 972                         // water acceleration
 973                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0);
 974                 }
 975         }
 976         else if ((self.items & IT_JETPACK) && self.BUTTON_HOOK && (!cvar("g_jetpack_fuel") || self.ammo_fuel >= 0.01 || self.items & IT_UNLIMITED_WEAPON_AMMO))
 977         {
 978                 //makevectors(self.v_angle_y * '0 1 0');
 979                 makevectors(self.v_angle);
 980                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
 981                 // add remaining speed as Z component
 982                 maxairspd = sv_maxairspeed*max(1, maxspd_mod);
 983                 // fix speedhacks :P
 984                 wishvel = normalize(wishvel) * min(vlen(wishvel) / maxairspd, 1);
 985                 // add the unused velocity as up component
 986                 wishvel_z = 0;
 987
 988                 // if(self.BUTTON_JUMP)
 989                         wishvel_z = sqrt(max(0, 1 - wishvel * wishvel));
 990
 991                 // it is now normalized, so...
 992                 float a_side, a_up, a_add, a_diff;
 993                 a_side = cvar("g_jetpack_acceleration_side");
 994                 a_up = cvar("g_jetpack_acceleration_up");
 995                 a_add = cvar("g_jetpack_antigravity") * sv_gravity;
 996
 997                 wishvel_x *= a_side;
 998                 wishvel_y *= a_side;
 999                 wishvel_z *= a_up;
1000                 wishvel_z += a_add;
1001
1002                 float best;
1003                 best = 0;
1004                 //////////////////////////////////////////////////////////////////////////////////////
1005                 // finding the maximum over all vectors of above form
1006                 // with wishvel having an absolute value of 1
1007                 //////////////////////////////////////////////////////////////////////////////////////
1008                 // we're finding the maximum over
1009                 //   f(a_side, a_up, a_add, z) := a_side * (1 - z^2) + (a_add + a_up * z)^2;
1010                 // for z in the range from -1 to 1
1011                 //////////////////////////////////////////////////////////////////////////////////////
1012                 // maximum is EITHER attained at the single extreme point:
1013                 a_diff = a_side * a_side - a_up * a_up;
1014                 if(a_diff != 0)
1015                 {
1016                         f = a_add * a_up / a_diff; // this is the zero of diff(f(a_side, a_up, a_add, z), z)
1017                         if(f > -1 && f < 1) // can it be attained?
1018                         {
1019                                 best = (a_diff + a_add * a_add) * (a_diff + a_up * a_up) / a_diff;
1020                                 //print("middle\n");
1021                         }
1022                 }
1023                 // OR attained at z = 1:
1024                 f = (a_up + a_add) * (a_up + a_add);
1025                 if(f > best)
1026                 {
1027                         best = f;
1028                         //print("top\n");
1029                 }
1030                 // OR attained at z = -1:
1031                 f = (a_up - a_add) * (a_up - a_add);
1032                 if(f > best)
1033                 {
1034                         best = f;
1035                         //print("bottom\n");
1036                 }
1037                 best = sqrt(best);
1038                 //////////////////////////////////////////////////////////////////////////////////////
1039
1040                 //print("best possible acceleration: ", ftos(best), "\n");
1041
1042                 float fxy, fz;
1043                 fxy = bound(0, 1 - (self.velocity * normalize(wishvel_x * '1 0 0' + wishvel_y * '0 1 0')) / cvar("g_jetpack_maxspeed_side"), 1);
1044                 if(wishvel_z - sv_gravity > 0)
1045                         fz = bound(0, 1 - self.velocity_z / cvar("g_jetpack_maxspeed_up"), 1);
1046                 else
1047                         fz = bound(0, 1 + self.velocity_z / cvar("g_jetpack_maxspeed_up"), 1);
1048
1049                 float fvel;
1050                 fvel = vlen(wishvel);
1051                 wishvel_x *= fxy;
1052                 wishvel_y *= fxy;
1053                 wishvel_z = (wishvel_z - sv_gravity) * fz + sv_gravity;
1054
1055                 fvel = min(1, vlen(wishvel) / best);
1056                 if(cvar("g_jetpack_fuel") && !(self.items & IT_UNLIMITED_WEAPON_AMMO))
1057                         f = min(1, self.ammo_fuel / (cvar("g_jetpack_fuel") * frametime * fvel));
1058                 else
1059                         f = 1;
1060
1061                 //print("this acceleration: ", ftos(vlen(wishvel) * f), "\n");
1062
1063                 if (f > 0 && wishvel != '0 0 0')
1064                 {
1065                         self.velocity = self.velocity + wishvel * f * frametime;
1066                         if not(self.items & IT_UNLIMITED_WEAPON_AMMO)
1067                                 self.ammo_fuel -= cvar("g_jetpack_fuel") * frametime * fvel * f;
1068                         self.flags &~= FL_ONGROUND;
1069                         self.items |= IT_USING_JETPACK;
1070
1071                         // jetpack also inhibits health regeneration, but only for 1 second
1072                         self.pauseregen_finished = max(self.pauseregen_finished, time + cvar("g_balance_pause_fuel_regen"));
1073                 }
1074         }
1075         else if (self.flags & FL_ONGROUND)
1076         {
1077                 // we get here if we ran out of ammo
1078                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1079                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1080
1081                 // walking
1082                 makevectors(self.v_angle_y * '0 1 0');
1083                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1084
1085                 if(!(self.lastflags & FL_ONGROUND))
1086                 {
1087                         if(cvar("speedmeter"))
1088                                 dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
1089                         if(self.lastground < time - 0.3)
1090                                 self.velocity = self.velocity * (1 - cvar("sv_friction_on_land"));
1091                         if(self.jumppadcount > 1)
1092                                 dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
1093                         self.jumppadcount = 0;
1094                 }
1095
1096 #ifdef LETS_TEST_FTEQCC
1097                 if(self.velocity_x || self.velocity_y)
1098                 {
1099                         // good
1100                 }
1101                 else
1102                 {
1103                         if(self.velocity_x)
1104                                 checkclient();
1105                         if(self.velocity_y)
1106                                 checkclient();
1107                 }
1108 #endif
1109
1110                 v = self.velocity;
1111                 v_z = 0;
1112                 f = vlen(v);
1113                 if(f > 0)
1114                 {
1115                         if (f < sv_stopspeed)
1116                                 f = 1 - frametime * (sv_stopspeed / f) * sv_friction;
1117                         else
1118                                 f = 1 - frametime * sv_friction;
1119                         if (f > 0)
1120                                 self.velocity = self.velocity * f;
1121                         else
1122                                 self.velocity = '0 0 0';
1123                 }
1124
1125                 // acceleration
1126                 wishdir = normalize(wishvel);
1127                 wishspeed = vlen(wishvel);
1128                 if (wishspeed > sv_maxspeed*maxspd_mod)
1129                         wishspeed = sv_maxspeed*maxspd_mod;
1130                 if (self.crouch)
1131                         wishspeed = wishspeed * 0.5;
1132                 if (time >= self.teleport_time)
1133                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0);
1134         }
1135         else
1136         {
1137                 float wishspeed0;
1138                 // we get here if we ran out of ammo
1139                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1140                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1141
1142                 if(maxspd_mod < 1)
1143                 {
1144                         maxairspd = sv_maxairspeed*maxspd_mod;
1145                         airaccel = sv_airaccelerate*maxspd_mod;
1146                 }
1147                 else
1148                 {
1149                         maxairspd = sv_maxairspeed;
1150                         airaccel = sv_airaccelerate;
1151                 }
1152                 // airborn
1153                 makevectors(self.v_angle_y * '0 1 0');
1154                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1155                 // acceleration
1156                 wishdir = normalize(wishvel);
1157                 wishspeed = wishspeed0 = vlen(wishvel);
1158                 if (wishspeed0 > sv_maxspeed*maxspd_mod)
1159                         wishspeed0 = sv_maxspeed*maxspd_mod;
1160                 if (wishspeed > maxairspd)
1161                         wishspeed = maxairspd;
1162                 if (self.crouch)
1163                         wishspeed = wishspeed * 0.5;
1164                 if (time >= self.teleport_time)
1165                 {
1166                         float accelerating;
1167                         float wishspeed2;
1168                         float airaccelqw;
1169                         float strafity;
1170
1171                         airaccelqw = self.stat_sv_airaccel_qw;
1172                         accelerating = (self.velocity * wishdir > 0);
1173                         wishspeed2 = wishspeed;
1174
1175                         // CPM
1176                         if(sv_airstopaccelerate)
1177                                 if(self.velocity * wishdir < 0)
1178                                         airaccel = sv_airstopaccelerate*maxspd_mod;
1179                         // note that for straight forward jumping:
1180                         // step = accel * frametime * wishspeed0;
1181                         // accel  = bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
1182                         // -->
1183                         // dv/dt = accel * maxspeed (when slow)
1184                         // dv/dt = accel * maxspeed * (1 - accelqw) (when fast)
1185                         // log dv/dt = logaccel + logmaxspeed (when slow)
1186                         // log dv/dt = logaccel + logmaxspeed + log(1 - accelqw) (when fast)
1187                         strafity = IsMoveInDirection(self.movement, -90) + IsMoveInDirection(self.movement, +90); // if one is nonzero, other is always zero
1188                         if(sv_maxairstrafespeed)
1189                                 wishspeed = min(wishspeed, GeomLerp(sv_maxairspeed*maxspd_mod, strafity, sv_maxairstrafespeed*maxspd_mod));
1190                         if(sv_airstrafeaccelerate)
1191                                 airaccel = GeomLerp(airaccel, strafity, sv_airstrafeaccelerate*maxspd_mod);
1192                         if(self.stat_sv_airstrafeaccel_qw)
1193                                 airaccelqw = copysign(1-GeomLerp(1-fabs(self.stat_sv_airaccel_qw), strafity, 1-fabs(self.stat_sv_airstrafeaccel_qw)), ((strafity > 0.5) ? self.stat_sv_airstrafeaccel_qw : self.stat_sv_airaccel_qw));
1194                         // !CPM
1195
1196                         if(sv_warsowbunny_turnaccel && accelerating && self.movement_y == 0 && self.movement_x != 0)
1197                                 PM_AirAccelerate(wishdir, wishspeed);
1198                         else
1199                                 PM_Accelerate(wishdir, wishspeed, wishspeed0, airaccel, airaccelqw, sv_airaccel_sideways_friction / maxairspd);
1200
1201                         if(sv_aircontrol)
1202                                 CPM_PM_Aircontrol(wishdir, wishspeed2);
1203                 }
1204         }
1205
1206         if((g_cts || g_race) && self.classname != "observer") {
1207                 if(vlen(self.velocity - self.velocity_z * '0 0 1') > speedaward_speed) {
1208                         speedaward_speed = vlen(self.velocity - self.velocity_z * '0 0 1');
1209                         speedaward_holder = self.netname;
1210                         speedaward_lastupdate = time;
1211                 }
1212                 if(speedaward_speed > speedaward_lastsent && time - speedaward_lastupdate > 1) {
1213                         string rr;
1214                         if(g_cts)
1215                                 rr = CTS_RECORD;
1216                         else
1217                                 rr = RACE_RECORD;
1218                         race_send_speedaward(MSG_ALL);
1219                         speedaward_lastsent = speedaward_speed;
1220                         if (speedaward_speed > speedaward_alltimebest) {
1221                                 speedaward_alltimebest = speedaward_speed;
1222                                 speedaward_alltimebest_holder = speedaward_holder;
1223                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/speed"), ftos(speedaward_alltimebest));
1224                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/netname"), speedaward_alltimebest_holder);
1225                                 race_send_speedaward_alltimebest(MSG_ALL);
1226                         }
1227                 }
1228         }
1229 :end
1230         if(self.flags & FL_ONGROUND)
1231                 self.lastground = time;
1232
1233         self.lastflags = self.flags;
1234         self.lastclassname = self.classname;
1235 };