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_aircontrol_penalty;
  20 float sv_warsowbunny_airforwardaccel;
  21 float sv_warsowbunny_accel;
  22 float sv_warsowbunny_topspeed;
  23 float sv_warsowbunny_turnaccel;
  24 float sv_warsowbunny_backtosideratio;
  25 float sv_airspeedlimit_nonqw;
  26
  27 .float ladder_time;
  28 .entity ladder_entity;
  29 .float gravity;
  30 .float swamp_slowdown;
  31 .float lastflags;
  32 .float lastground;
  33 .float wasFlying;
  34 .float spectatorspeed;
  35
  36 .float multijump_count;
  37 .float multijump_ready;
  38 .float prevjumpbutton;
  39
  40 /*
  41 =============
  42 PlayerJump
  43
  44 When you press the jump key
  45 =============
  46 */
  47 void PlayerJump (void)
  48 {
  49         float mjumpheight;
  50         float doublejump;
  51
  52         doublejump = FALSE;
  53         if (sv_doublejump)
  54         {
  55                 tracebox(self.origin + '0 0 0.01', self.mins, self.maxs, self.origin - '0 0 0.01', MOVE_NORMAL, self);
  56                 if (trace_fraction < 1 && trace_plane_normal_z > 0.7)
  57                         doublejump = TRUE;
  58         }
  59
  60         mjumpheight = cvar("sv_jumpvelocity");
  61         if (self.waterlevel >= WATERLEVEL_SWIMMING)
  62         {
  63                 if (self.watertype == CONTENT_WATER)
  64                         self.velocity_z = 200;
  65                 else if (self.watertype == CONTENT_SLIME)
  66                         self.velocity_z = 80;
  67                 else
  68                         self.velocity_z = 50;
  69
  70                 return;
  71         }
  72
  73         if (cvar("g_multijump"))
  74         {
  75                 if (self.prevjumpbutton == FALSE && !(self.flags & FL_ONGROUND)) // jump button pressed this frame and we are in midair
  76                         self.multijump_ready = TRUE;  // this is necessary to check that we released the jump button and pressed it again
  77                 else
  78                         self.multijump_ready = FALSE;
  79         }
  80
  81         if(!doublejump && self.multijump_ready && self.multijump_count < cvar("g_multijump") && self.velocity_z > cvar("g_multijump_speed"))
  82         {
  83                 // doublejump = FALSE; // checked above in the if
  84                 if (cvar("g_multijump") > 0)
  85                 {
  86                         if (cvar("g_multijump_add") == 0) // in this case we make the z velocity == jumpvelocity
  87                         {
  88                                 if (self.velocity_z < mjumpheight)
  89                                 {
  90                                         doublejump = TRUE;
  91                                         self.velocity_z = 0;
  92                                 }
  93                         }
  94                         else
  95                                 doublejump = TRUE;
  96
  97                         if(doublejump)
  98                         {
  99                                 if(self.movement_x != 0 || self.movement_y != 0) // don't remove all speed if player isnt pressing any movement keys
 100                                 {
 101                                         float curspeed;
 102                                         vector wishvel, wishdir;
 103
 104                                         curspeed = max(
 105                                                 vlen(vec2(self.velocity)), // current xy speed
 106                                                 vlen(vec2(antilag_takebackavgvelocity(self, max(self.lastteleporttime + sys_frametime, time - 0.25), time))) // average xy topspeed over the last 0.25 secs
 107                                         );
 108                                         makevectors(self.v_angle_y * '0 1 0');
 109                                         wishvel = v_forward * self.movement_x + v_right * self.movement_y;
 110                                         wishdir = normalize(wishvel);
 111
 112                                         self.velocity_x = wishdir_x * curspeed; // allow "dodging" at a multijump
 113                                         self.velocity_y = wishdir_y * curspeed;
 114                                         // keep velocity_z unchanged!
 115                                 }
 116                                 self.multijump_count += 1;
 117                         }
 118                 }
 119                 self.multijump_ready = FALSE; // require releasing and pressing the jump button again for the next jump
 120         }
 121
 122         if (!doublejump)
 123                 if (!(self.flags & FL_ONGROUND))
 124                         return;
 125
 126         if(!sv_pogostick)
 127                 if (!(self.flags & FL_JUMPRELEASED))
 128                         return;
 129
 130         if(self.health <= g_bloodloss)
 131                 return;
 132
 133         if(g_runematch)
 134         {
 135                 if(self.runes & RUNE_SPEED)
 136                 {
 137                         if(self.runes & CURSE_SLOW)
 138                                 mjumpheight = mjumpheight * cvar("g_balance_rune_speed_combo_jumpheight");
 139                         else
 140                                 mjumpheight = mjumpheight * cvar("g_balance_rune_speed_jumpheight");
 141                 }
 142                 else if(self.runes & CURSE_SLOW)
 143                 {
 144                         mjumpheight = mjumpheight * cvar("g_balance_curse_slow_jumpheight");
 145                 }
 146         }
 147
 148         // sv_jumpspeedcap_min/sv_jumpspeedcap_max act as baseline
 149         // velocity bounds.  Final velocity is bound between (jumpheight *
 150         // min + jumpheight) and (jumpheight * max + jumpheight);
 151
 152         if(cvar_string("sv_jumpspeedcap_min") != "")
 153         {
 154                 float minjumpspeed;
 155
 156                 minjumpspeed = mjumpheight * cvar("sv_jumpspeedcap_min");
 157
 158                 if (self.velocity_z < minjumpspeed)
 159                         mjumpheight += minjumpspeed - self.velocity_z;
 160         }
 161
 162         if(cvar_string("sv_jumpspeedcap_max") != "")
 163         {
 164                 // don't do jump speedcaps on ramps to preserve old xonotic ramjump style
 165                 tracebox(self.origin + '0 0 0.01', self.mins, self.maxs, self.origin - '0 0 0.01', MOVE_NORMAL, self);
 166
 167                 if(!(trace_fraction < 1 && trace_plane_normal_z < 0.98 && cvar("sv_jumpspeedcap_max_disable_on_ramps")))
 168                 {
 169                         float maxjumpspeed;
 170
 171                         maxjumpspeed = mjumpheight * cvar("sv_jumpspeedcap_max");
 172
 173                         if (self.velocity_z > maxjumpspeed)
 174                                 mjumpheight -= self.velocity_z - maxjumpspeed;
 175                 }
 176         }
 177
 178         if(!(self.lastflags & FL_ONGROUND))
 179         {
 180                 if(cvar("speedmeter"))
 181                         dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
 182                 if(self.lastground < time - 0.3)
 183                 {
 184                         self.velocity_x *= (1 - cvar("sv_friction_on_land"));
 185                         self.velocity_y *= (1 - cvar("sv_friction_on_land"));
 186                 }
 187                 if(self.jumppadcount > 1)
 188                         dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
 189                 self.jumppadcount = 0;
 190         }
 191
 192         self.velocity_z = self.velocity_z + mjumpheight;
 193         self.oldvelocity_z = self.velocity_z;
 194
 195         self.flags &~= FL_ONGROUND;
 196         self.flags &~= FL_JUMPRELEASED;
 197
 198         if (self.crouch)
 199                 setanim(self, self.anim_duckjump, FALSE, TRUE, TRUE);
 200         else
 201                 setanim(self, self.anim_jump, FALSE, TRUE, TRUE);
 202
 203         if(g_jump_grunt)
 204                 PlayerSound(playersound_jump, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 205
 206         self.restart_jump = -1; // restart jump anim next time
 207         // value -1 is used to not use the teleport bit (workaround for tiny hitch when re-jumping)
 208 }
 209
 210 void CheckWaterJump()
 211 {
 212         local vector start, end;
 213
 214 // check for a jump-out-of-water
 215         makevectors (self.angles);
 216         start = self.origin;
 217         start_z = start_z + 8;
 218         v_forward_z = 0;
 219         normalize(v_forward);
 220         end = start + v_forward*24;
 221         traceline (start, end, TRUE, self);
 222         if (trace_fraction < 1)
 223         {       // solid at waist
 224                 start_z = start_z + self.maxs_z - 8;
 225                 end = start + v_forward*24;
 226                 self.movedir = trace_plane_normal * -50;
 227                 traceline (start, end, TRUE, self);
 228                 if (trace_fraction == 1)
 229                 {       // open at eye level
 230                         self.flags |= FL_WATERJUMP;
 231                         self.velocity_z = 225;
 232                         self.flags &~= FL_JUMPRELEASED;
 233                         self.teleport_time = time + 2;  // safety net
 234                         return;
 235                 }
 236         }
 237 };
 238
 239 float racecar_angle(float forward, float down)
 240 {
 241         float ret, angle_mult;
 242
 243         if(forward < 0)
 244         {
 245                 forward = -forward;
 246                 down = -down;
 247         }
 248
 249         ret = vectoyaw('0 1 0' * down + '1 0 0' * forward);
 250
 251         angle_mult = forward / (800 + forward);
 252
 253         if(ret > 180)
 254                 return ret * angle_mult + 360 * (1 - angle_mult);
 255         else
 256                 return ret * angle_mult;
 257 }
 258
 259 void RaceCarPhysics()
 260 {
 261         // using this move type for "big rigs"
 262         // the engine does not push the entity!
 263
 264         float accel, steer, f, myspeed, steerfactor;
 265         vector angles_save, rigvel;
 266
 267         angles_save = self.angles;
 268         accel = bound(-1, self.movement_x / sv_maxspeed, 1);
 269         steer = bound(-1, self.movement_y / sv_maxspeed, 1);
 270
 271         if(g_bugrigs_reverse_speeding)
 272         {
 273                 if(accel < 0)
 274                 {
 275                         // back accel is DIGITAL
 276                         // to prevent speedhack
 277                         if(accel < -0.5)
 278                                 accel = -1;
 279                         else
 280                                 accel = 0;
 281                 }
 282         }
 283
 284         self.angles_x = 0;
 285         self.angles_z = 0;
 286         makevectors(self.angles); // new forward direction!
 287
 288         if(self.flags & FL_ONGROUND || g_bugrigs_air_steering)
 289         {
 290                 float upspeed, accelfactor;
 291
 292                 myspeed = self.velocity * v_forward;
 293                 upspeed = self.velocity * v_up;
 294
 295                 // responsiveness factor for steering and acceleration
 296                 f = 1 / (1 + pow(max(-myspeed, myspeed) / g_bugrigs_speed_ref, g_bugrigs_speed_pow));
 297                 //MAXIMA: f(v) := 1 / (1 + (v / g_bugrigs_speed_ref) ^ g_bugrigs_speed_pow);
 298
 299                 if(myspeed < 0 && g_bugrigs_reverse_spinning)
 300                         steerfactor = -myspeed * g_bugrigs_steer;
 301                 else
 302                         steerfactor = -myspeed * f * g_bugrigs_steer;
 303
 304                 if(myspeed < 0 && g_bugrigs_reverse_speeding)
 305                         accelfactor = g_bugrigs_accel;
 306                 else
 307                         accelfactor = f * g_bugrigs_accel;
 308                 //MAXIMA: accel(v) := f(v) * g_bugrigs_accel;
 309
 310                 if(accel < 0)
 311                 {
 312                         if(myspeed > 0)
 313                         {
 314                                 myspeed = max(0, myspeed - frametime * (g_bugrigs_friction_floor - g_bugrigs_friction_brake * accel));
 315                         }
 316                         else
 317                         {
 318                                 if(!g_bugrigs_reverse_speeding)
 319                                         myspeed = min(0, myspeed + frametime * g_bugrigs_friction_floor);
 320                         }
 321                 }
 322                 else
 323                 {
 324                         if(myspeed >= 0)
 325                         {
 326                                 myspeed = max(0, myspeed - frametime * g_bugrigs_friction_floor);
 327                         }
 328                         else
 329                         {
 330                                 if(g_bugrigs_reverse_stopping)
 331                                         myspeed = 0;
 332                                 else
 333                                         myspeed = min(0, myspeed + frametime * (g_bugrigs_friction_floor + g_bugrigs_friction_brake * accel));
 334                         }
 335                 }
 336                 // terminal velocity = velocity at which 50 == accelfactor, that is, 1549 units/sec
 337                 //MAXIMA: friction(v) := g_bugrigs_friction_floor;
 338
 339                 self.angles_y += steer * frametime * steerfactor; // apply steering
 340                 makevectors(self.angles); // new forward direction!
 341
 342                 myspeed += accel * accelfactor * frametime;
 343
 344                 rigvel = myspeed * v_forward + '0 0 1' * upspeed;
 345         }
 346         else
 347         {
 348                 myspeed = vlen(self.velocity);
 349
 350                 // responsiveness factor for steering and acceleration
 351                 f = 1 / (1 + pow(max(0, myspeed / g_bugrigs_speed_ref), g_bugrigs_speed_pow));
 352                 steerfactor = -myspeed * f;
 353                 self.angles_y += steer * frametime * steerfactor; // apply steering
 354
 355                 rigvel = self.velocity;
 356                 makevectors(self.angles); // new forward direction!
 357         }
 358
 359         rigvel = rigvel * max(0, 1 - vlen(rigvel) * g_bugrigs_friction_air * frametime);
 360         //MAXIMA: airfriction(v) := v * v * g_bugrigs_friction_air;
 361         //MAXIMA: total_acceleration(v) := accel(v) - friction(v) - airfriction(v);
 362         //MAXIMA: solve(total_acceleration(v) = 0, v);
 363
 364         if(g_bugrigs_planar_movement)
 365         {
 366                 vector rigvel_xy, neworigin, up;
 367                 float mt;
 368
 369                 rigvel_z -= frametime * sv_gravity; // 4x gravity plays better
 370                 rigvel_xy = vec2(rigvel);
 371
 372                 if(g_bugrigs_planar_movement_car_jumping && !g_touchexplode) // touchexplode is a better way to handle collisions
 373                         mt = MOVE_NORMAL;
 374                 else
 375                         mt = MOVE_NOMONSTERS;
 376
 377                 tracebox(self.origin, self.mins, self.maxs, self.origin + '0 0 1024', mt, self);
 378                 up = trace_endpos - self.origin;
 379
 380                 // BUG RIGS: align the move to the surface instead of doing collision testing
 381                 // can we move?
 382                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos + rigvel_xy * frametime, mt, self);
 383
 384                 // align to surface
 385                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos - up + '0 0 1' * rigvel_z * frametime, mt, self);
 386
 387                 if(trace_fraction < 0.5)
 388                 {
 389                         trace_fraction = 1;
 390                         neworigin = self.origin;
 391                 }
 392                 else
 393                         neworigin = trace_endpos;
 394
 395                 if(trace_fraction < 1)
 396                 {
 397                         // now set angles_x so that the car points parallel to the surface
 398                         self.angles = vectoangles(
 399                                         '1 0 0' * v_forward_x * trace_plane_normal_z
 400                                         +
 401                                         '0 1 0' * v_forward_y * trace_plane_normal_z
 402                                         +
 403                                         '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y)
 404                                         );
 405                         self.flags |= FL_ONGROUND;
 406                 }
 407                 else
 408                 {
 409                         // now set angles_x so that the car points forward, but is tilted in velocity direction
 410                         self.flags &~= FL_ONGROUND;
 411                 }
 412
 413                 self.velocity = (neworigin - self.origin) * (1.0 / frametime);
 414                 self.movetype = MOVETYPE_NOCLIP;
 415         }
 416         else
 417         {
 418                 rigvel_z -= frametime * sv_gravity; // 4x gravity plays better
 419                 self.velocity = rigvel;
 420                 self.movetype = MOVETYPE_FLY;
 421         }
 422
 423         trace_fraction = 1;
 424         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 4', MOVE_NORMAL, self);
 425         if(trace_fraction != 1)
 426         {
 427                 self.angles = vectoangles2(
 428                                 '1 0 0' * v_forward_x * trace_plane_normal_z
 429                                 +
 430                                 '0 1 0' * v_forward_y * trace_plane_normal_z
 431                                 +
 432                                 '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y),
 433                                 trace_plane_normal
 434                                 );
 435         }
 436         else
 437         {
 438                 vector vel_local;
 439
 440                 vel_local_x = v_forward * self.velocity;
 441                 vel_local_y = v_right * self.velocity;
 442                 vel_local_z = v_up * self.velocity;
 443
 444                 self.angles_x = racecar_angle(vel_local_x, vel_local_z);
 445                 self.angles_z = racecar_angle(-vel_local_y, vel_local_z);
 446         }
 447
 448         // smooth the angles
 449         vector vf1, vu1, smoothangles;
 450         makevectors(self.angles);
 451         f = bound(0, frametime * g_bugrigs_angle_smoothing, 1);
 452         if(f == 0)
 453                 f = 1;
 454         vf1 = v_forward * f;
 455         vu1 = v_up * f;
 456         makevectors(angles_save);
 457         vf1 = vf1 + v_forward * (1 - f);
 458         vu1 = vu1 + v_up * (1 - f);
 459         smoothangles = vectoangles2(vf1, vu1);
 460         self.angles_x = -smoothangles_x;
 461         self.angles_z =  smoothangles_z;
 462 }
 463
 464 float IsMoveInDirection(vector mv, float angle) // key mix factor
 465 {
 466         if(mv_x == 0 && mv_y == 0)
 467                 return 0; // avoid division by zero
 468         angle -= RAD2DEG * atan2(mv_y, mv_x);
 469         angle = remainder(angle, 360) / 45;
 470         if(angle >  1)
 471                 return 0;
 472         if(angle < -1)
 473                 return 0;
 474         return 1 - fabs(angle);
 475 }
 476
 477 float GeomLerp(float a, float lerp, float b)
 478 {
 479         if(a == 0)
 480         {
 481                 if(lerp < 1)
 482                         return 0;
 483                 else
 484                         return b;
 485         }
 486         if(b == 0)
 487         {
 488                 if(lerp > 0)
 489                         return 0;
 490                 else
 491                         return a;
 492         }
 493         return a * pow(fabs(b / a), lerp);
 494 }
 495
 496 void CPM_PM_Aircontrol(vector wishdir, float wishspeed)
 497 {
 498         float zspeed, xyspeed, dot, k;
 499
 500 #if 0
 501         // this doesn't play well with analog input
 502         if(self.movement_x == 0 || self.movement_y != 0)
 503                 return; // can't control movement if not moving forward or backward
 504         k = 32;
 505 #else
 506         k = 32 * (2 * IsMoveInDirection(self.movement, 0) - 1);
 507         if(k <= 0)
 508                 return;
 509 #endif
 510
 511         k *= bound(0, wishspeed / sv_maxairspeed, 1);
 512
 513         zspeed = self.velocity_z;
 514         self.velocity_z = 0;
 515         xyspeed = vlen(self.velocity); self.velocity = normalize(self.velocity);
 516
 517         dot = self.velocity * wishdir;
 518
 519         if(dot > 0) // we can't change direction while slowing down
 520         {
 521                 k *= pow(dot, sv_aircontrol_power)*frametime;
 522                 xyspeed = max(0, xyspeed - sv_aircontrol_penalty * sqrt(max(0, 1 - dot*dot)) * k/32);
 523                 k *= sv_aircontrol;
 524                 self.velocity = normalize(self.velocity * xyspeed + wishdir * k);
 525         }
 526
 527         self.velocity = self.velocity * xyspeed;
 528         self.velocity_z = zspeed;
 529 }
 530
 531 float AdjustAirAccelQW(float accelqw, float factor)
 532 {
 533         return copysign(bound(0.000001, 1 - (1 - fabs(accelqw)) * factor, 1), accelqw);
 534 }
 535
 536 // example config for alternate speed clamping:
 537 //   sv_airaccel_qw 0.8
 538 //   sv_airaccel_sideways_friction 0
 539 //   prvm_globalset server speedclamp_mode 1
 540 //     (or 2)
 541 void PM_Accelerate(vector wishdir, float wishspeed, float wishspeed0, float accel, float accelqw, float sidefric, float speedlimit)
 542 {
 543         float vel_straight;
 544         float vel_z;
 545         vector vel_perpend;
 546         float step;
 547
 548         vector vel_xy;
 549         float vel_xy_current;
 550         float vel_xy_backward, vel_xy_forward;
 551         float speedclamp;
 552
 553         speedclamp = (accelqw < 0);
 554         if(speedclamp)
 555                 accelqw = -accelqw;
 556
 557         if(cvar("sv_gameplayfix_q2airaccelerate"))
 558                 wishspeed0 = wishspeed;
 559
 560         vel_straight = self.velocity * wishdir;
 561         vel_z = self.velocity_z;
 562         vel_xy = vec2(self.velocity);
 563         vel_perpend = vel_xy - vel_straight * wishdir;
 564
 565         step = accel * frametime * wishspeed0;
 566
 567         vel_xy_current  = vlen(vel_xy);
 568         if(speedlimit)
 569                 accelqw = AdjustAirAccelQW(accelqw, (speedlimit - bound(wishspeed, vel_xy_current, speedlimit)) / max(1, speedlimit - wishspeed));
 570         vel_xy_forward  = vel_xy_current + bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
 571         vel_xy_backward = vel_xy_current - bound(0, wishspeed + vel_xy_current, step) * accelqw - step * (1 - accelqw);
 572         if(vel_xy_backward < 0)
 573                 vel_xy_backward = 0; // not that it REALLY occurs that this would cause wrong behaviour afterwards
 574
 575         vel_straight = vel_straight + bound(0, wishspeed - vel_straight, step) * accelqw + step * (1 - accelqw);
 576
 577         if(sidefric < 0 && (vel_perpend*vel_perpend))
 578                 // negative: only apply so much sideways friction to stay below the speed you could get by "braking"
 579         {
 580                 float f, fminimum;
 581                 f = max(0, 1 + frametime * wishspeed * sidefric);
 582                 fminimum = (vel_xy_backward*vel_xy_backward - vel_straight*vel_straight) / (vel_perpend*vel_perpend);
 583                 // this cannot be > 1
 584                 if(fminimum <= 0)
 585                         vel_perpend = vel_perpend * max(0, f);
 586                 else
 587                 {
 588                         fminimum = sqrt(fminimum);
 589                         vel_perpend = vel_perpend * max(fminimum, f);
 590                 }
 591         }
 592         else
 593                 vel_perpend = vel_perpend * max(0, 1 - frametime * wishspeed * sidefric);
 594
 595         vel_xy = vel_straight * wishdir + vel_perpend;
 596
 597         if(speedclamp)
 598         {
 599                 // ensure we don't get too fast or decelerate faster than we should
 600                 vel_xy_current = min(vlen(vel_xy), vel_xy_forward);
 601                 if(vel_xy_current > 0) // prevent division by zero
 602                         vel_xy = normalize(vel_xy) * vel_xy_current;
 603         }
 604
 605         self.velocity = vel_xy + vel_z * '0 0 1';
 606 }
 607
 608 void PM_AirAccelerate(vector wishdir, float wishspeed)
 609 {
 610         vector curvel, wishvel, acceldir, curdir;
 611         float addspeed, accelspeed, curspeed, f;
 612         float dot;
 613
 614         if(wishspeed == 0)
 615                 return;
 616
 617         curvel = self.velocity;
 618         curvel_z = 0;
 619         curspeed = vlen(curvel);
 620
 621         if(wishspeed > curspeed * 1.01)
 622         {
 623                 wishspeed = min(wishspeed, curspeed + sv_warsowbunny_airforwardaccel * sv_maxspeed * frametime);
 624         }
 625         else
 626         {
 627                 f = max(0, (sv_warsowbunny_topspeed - curspeed) / (sv_warsowbunny_topspeed - sv_maxspeed));
 628                 wishspeed = max(curspeed, sv_maxspeed) + sv_warsowbunny_accel * f * sv_maxspeed * frametime;
 629         }
 630         wishvel = wishdir * wishspeed;
 631         acceldir = wishvel - curvel;
 632         addspeed = vlen(acceldir);
 633         acceldir = normalize(acceldir);
 634
 635         accelspeed = min(addspeed, sv_warsowbunny_turnaccel * sv_maxspeed * frametime);
 636
 637         if(sv_warsowbunny_backtosideratio < 1)
 638         {
 639                 curdir = normalize(curvel);
 640                 dot = acceldir * curdir;
 641                 if(dot < 0)
 642                         acceldir = acceldir - (1 - sv_warsowbunny_backtosideratio) * dot * curdir;
 643         }
 644
 645         self.velocity += accelspeed * acceldir;
 646 }
 647
 648 .vector movement_old;
 649 .float buttons_old;
 650 .vector v_angle_old;
 651 .string lastclassname;
 652
 653 .float() PlayerPhysplug;
 654
 655 string specialcommand = "xwxwxsxsxaxdxaxdx1x ";
 656 .float specialcommand_pos;
 657 void SpecialCommand()
 658 {
 659 #ifdef TETRIS
 660         TetrisImpulse();
 661 #else
 662         if(!CheatImpulse(99))
 663                 print("A hollow voice says \"Plugh\".\n");
 664 #endif
 665 }
 666
 667 float speedaward_speed;
 668 string speedaward_holder;
 669 string speedaward_uid;
 670 void race_send_speedaward(float msg)
 671 {
 672         // send the best speed of the round
 673         WriteByte(msg, SVC_TEMPENTITY);
 674         WriteByte(msg, TE_CSQC_RACE);
 675         WriteByte(msg, RACE_NET_SPEED_AWARD);
 676         WriteInt24_t(msg, floor(speedaward_speed+0.5));
 677         WriteString(msg, speedaward_holder);
 678 }
 679
 680 float speedaward_alltimebest;
 681 string speedaward_alltimebest_holder;
 682 string speedaward_alltimebest_uid;
 683 void race_send_speedaward_alltimebest(float msg)
 684 {
 685         // send the best speed
 686         WriteByte(msg, SVC_TEMPENTITY);
 687         WriteByte(msg, TE_CSQC_RACE);
 688         WriteByte(msg, RACE_NET_SPEED_AWARD_BEST);
 689         WriteInt24_t(msg, floor(speedaward_alltimebest+0.5));
 690         WriteString(msg, speedaward_alltimebest_holder);
 691 }
 692
 693 string GetMapname(void);
 694 float speedaward_lastupdate;
 695 float speedaward_lastsent;
 696 void SV_PlayerPhysics()
 697 {
 698         local vector wishvel, wishdir, v;
 699         local float wishspeed, f, maxspd_mod, spd, maxairspd, airaccel, swampspd_mod, buttons;
 700         string temps;
 701         float buttons_prev;
 702         float not_allowed_to_move;
 703         string c;
 704
 705         maxspd_mod = 1;
 706         if(g_minstagib && (self.items & IT_INVINCIBLE))
 707                 maxspd_mod *= cvar("g_minstagib_speed_highspeed");
 708         if(g_nexball && self.ballcarried)
 709                 maxspd_mod *= cvar("g_nexball_basketball_carrier_highspeed");
 710
 711         // fix physics stats for g_movement_highspeed
 712         self.stat_sv_airaccel_qw = AdjustAirAccelQW(sv_airaccel_qw, autocvar_g_movement_highspeed * maxspd_mod);
 713
 714         if(sv_airstrafeaccel_qw)
 715                 self.stat_sv_airstrafeaccel_qw = AdjustAirAccelQW(sv_airstrafeaccel_qw, autocvar_g_movement_highspeed * maxspd_mod);
 716         else
 717                 self.stat_sv_airstrafeaccel_qw = 0;
 718
 719         self.stat_sv_airspeedlimit_nonqw = sv_airspeedlimit_nonqw * autocvar_g_movement_highspeed * maxspd_mod;
 720
 721     if(self.PlayerPhysplug)
 722         if(self.PlayerPhysplug())
 723             return;
 724
 725         self.race_movetime_frac += frametime;
 726         f = floor(self.race_movetime_frac);
 727         self.race_movetime_frac -= f;
 728         self.race_movetime_count += f;
 729         self.race_movetime = self.race_movetime_frac + self.race_movetime_count;
 730
 731         anticheat_physics();
 732
 733         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);
 734
 735         if(!buttons)
 736                 c = "x";
 737         else if(buttons == 1)
 738                 c = "1";
 739         else if(buttons == 2)
 740                 c = " ";
 741         else if(buttons == 128)
 742                 c = "s";
 743         else if(buttons == 256)
 744                 c = "w";
 745         else if(buttons == 512)
 746                 c = "a";
 747         else if(buttons == 1024)
 748                 c = "d";
 749         else
 750                 c = "?";
 751
 752         if(c == substring(specialcommand, self.specialcommand_pos, 1))
 753         {
 754                 self.specialcommand_pos += 1;
 755                 if(self.specialcommand_pos >= strlen(specialcommand))
 756                 {
 757                         self.specialcommand_pos = 0;
 758                         SpecialCommand();
 759                         return;
 760                 }
 761         }
 762         else if(self.specialcommand_pos && (c != substring(specialcommand, self.specialcommand_pos - 1, 1)))
 763                 self.specialcommand_pos = 0;
 764
 765         if(!sv_maxidle_spectatorsareidle || self.movetype == MOVETYPE_WALK)
 766         {
 767                 if(buttons != self.buttons_old || self.movement != self.movement_old || self.v_angle != self.v_angle_old)
 768                         self.parm_idlesince = time;
 769         }
 770         buttons_prev = self.buttons_old;
 771         self.buttons_old = buttons;
 772         self.movement_old = self.movement;
 773         self.v_angle_old = self.v_angle;
 774
 775         if(time < self.nickspamtime)
 776         if(self.nickspamcount >= cvar("g_nick_flood_penalty_yellow"))
 777         {
 778                 // slight annoyance for nick change scripts
 779                 self.movement = -1 * self.movement;
 780                 self.BUTTON_ATCK = self.BUTTON_JUMP = self.BUTTON_ATCK2 = self.BUTTON_ZOOM = self.BUTTON_CROUCH = self.BUTTON_HOOK = self.BUTTON_USE = 0;
 781
 782                 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!
 783                 {
 784                         self.angles_x = random() * 360;
 785                         self.angles_y = random() * 360;
 786                         // at least I'm not forcing retardedview by also assigning to angles_z
 787                         self.fixangle = 1;
 788                 }
 789         }
 790
 791         if (self.punchangle != '0 0 0')
 792         {
 793                 f = vlen(self.punchangle) - 10 * frametime;
 794                 if (f > 0)
 795                         self.punchangle = normalize(self.punchangle) * f;
 796                 else
 797                         self.punchangle = '0 0 0';
 798         }
 799
 800         if (self.punchvector != '0 0 0')
 801         {
 802                 f = vlen(self.punchvector) - 30 * frametime;
 803                 if (f > 0)
 804                         self.punchvector = normalize(self.punchvector) * f;
 805                 else
 806                         self.punchvector = '0 0 0';
 807         }
 808
 809         if (clienttype(self) == CLIENTTYPE_BOT)
 810         {
 811                 if(playerdemo_read())
 812                         return;
 813                 bot_think();
 814         }
 815
 816         MUTATOR_CALLHOOK(PlayerPhysics);
 817
 818         self.items &~= IT_USING_JETPACK;
 819
 820         if(self.classname == "player")
 821         {
 822                 if(self.race_penalty)
 823                         if(time > self.race_penalty)
 824                                 self.race_penalty = 0;
 825
 826                 not_allowed_to_move = 0;
 827                 if(self.race_penalty)
 828                         not_allowed_to_move = 1;
 829                 if(!cvar("sv_ready_restart_after_countdown"))
 830                 if(time < game_starttime)
 831                         not_allowed_to_move = 1;
 832
 833                 if(not_allowed_to_move)
 834                 {
 835                         self.velocity = '0 0 0';
 836                         self.movetype = MOVETYPE_NONE;
 837                         self.disableclientprediction = 2;
 838                 }
 839                 else if(self.disableclientprediction == 2)
 840                 {
 841                         if(self.movetype == MOVETYPE_NONE)
 842                                 self.movetype = MOVETYPE_WALK;
 843                         self.disableclientprediction = 0;
 844                 }
 845         }
 846
 847         if (self.movetype == MOVETYPE_NONE)
 848                 return;
 849
 850         maxspd_mod = 1;
 851
 852         if(g_runematch)
 853         {
 854                 if(self.runes & RUNE_SPEED)
 855                 {
 856                         if(self.runes & CURSE_SLOW)
 857                                 maxspd_mod = maxspd_mod * cvar("g_balance_rune_speed_combo_moverate");
 858                         else
 859                                 maxspd_mod = maxspd_mod * cvar("g_balance_rune_speed_moverate");
 860                 }
 861                 else if(self.runes & CURSE_SLOW)
 862                 {
 863                         maxspd_mod = maxspd_mod * cvar("g_balance_curse_slow_moverate");
 864                 }
 865         }
 866
 867         swampspd_mod = 1;
 868         if(self.in_swamp) {
 869                 swampspd_mod = self.swamp_slowdown; //cvar("g_balance_swamp_moverate");
 870         }
 871
 872         if(self.classname != "player")
 873         {
 874                 maxspd_mod = cvar("sv_spectator_speed_multiplier");
 875                 if(!self.spectatorspeed)
 876                         self.spectatorspeed = maxspd_mod;
 877                 if(self.impulse && self.impulse <= 19)
 878                 {
 879                         if(self.lastclassname != "player")
 880                         {
 881                                 if(self.impulse == 10 || self.impulse == 15 || self.impulse == 18)
 882                                         self.spectatorspeed = bound(1, self.spectatorspeed + 0.5, 5);
 883                                 else if(self.impulse == 11)
 884                                         self.spectatorspeed = maxspd_mod;
 885                                 else if(self.impulse == 12 || self.impulse == 16  || self.impulse == 19)
 886                                         self.spectatorspeed = bound(1, self.spectatorspeed - 0.5, 5);
 887                                 else if(self.impulse >= 1 && self.impulse <= 9)
 888                                         self.spectatorspeed = 1 + 0.5 * (self.impulse - 1);
 889                         } // otherwise just clear
 890                         self.impulse = 0;
 891                 }
 892                 maxspd_mod = self.spectatorspeed;
 893         }
 894
 895         spd = max(sv_maxspeed, sv_maxairspeed) * maxspd_mod * swampspd_mod;
 896         if(self.speed != spd)
 897         {
 898                 self.speed = spd;
 899                 temps = ftos(spd);
 900                 stuffcmd(self, strcat("cl_forwardspeed ", temps, "\n"));
 901                 stuffcmd(self, strcat("cl_backspeed ", temps, "\n"));
 902                 stuffcmd(self, strcat("cl_sidespeed ", temps, "\n"));
 903                 stuffcmd(self, strcat("cl_upspeed ", temps, "\n"));
 904         }
 905
 906         maxspd_mod *= swampspd_mod; // only one common speed modder please!
 907         swampspd_mod = 1;
 908
 909         // if dead, behave differently
 910         if (self.deadflag)
 911                 goto end;
 912
 913         if (!self.fixangle && !g_bugrigs)
 914         {
 915                 self.angles_x = 0;
 916                 self.angles_y = self.v_angle_y;
 917                 self.angles_z = 0;
 918         }
 919
 920         if(self.flags & FL_ONGROUND)
 921         if(self.wasFlying)
 922         {
 923                 self.wasFlying = 0;
 924
 925                 if(self.waterlevel < WATERLEVEL_SWIMMING)
 926                 if(time >= self.ladder_time)
 927                 if not(self.hook)
 928                 {
 929                         self.nextstep = time + 0.3 + random() * 0.1;
 930                         trace_dphitq3surfaceflags = 0;
 931                         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 1', MOVE_NOMONSTERS, self);
 932                         if not(trace_dphitq3surfaceflags & Q3SURFACEFLAG_NOSTEPS)
 933                         {
 934                                 if(trace_dphitq3surfaceflags & Q3SURFACEFLAG_METALSTEPS)
 935                                         GlobalSound(globalsound_metalfall, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 936                                 else
 937                                         GlobalSound(globalsound_fall, CHAN_PLAYER, VOICETYPE_PLAYERSOUND);
 938                         }
 939                 }
 940         }
 941
 942         if(IsFlying(self))
 943                 self.wasFlying = 1;
 944
 945         if(self.classname == "player")
 946         {
 947                 if(self.flags & FL_ONGROUND)
 948                 {
 949                         if (cvar("g_multijump") > 0)
 950                                 self.multijump_count = 0;
 951                         else
 952                                 self.multijump_count = -2; // the cvar value for infinite jumps is -1, so this needs to be smaller
 953                 }
 954
 955                 if (self.BUTTON_JUMP)
 956                         PlayerJump ();
 957                 else
 958                         self.flags |= FL_JUMPRELEASED;
 959
 960                 if (self.waterlevel == WATERLEVEL_SWIMMING)
 961                         CheckWaterJump ();
 962                 self.prevjumpbutton = self.BUTTON_JUMP;
 963         }
 964
 965         if (self.flags & FL_WATERJUMP )
 966         {
 967                 self.velocity_x = self.movedir_x;
 968                 self.velocity_y = self.movedir_y;
 969                 if (time > self.teleport_time || self.waterlevel == WATERLEVEL_NONE)
 970                 {
 971                         self.flags &~= FL_WATERJUMP;
 972                         self.teleport_time = 0;
 973                 }
 974         }
 975         else if (g_bugrigs && self.classname == "player")
 976         {
 977                 RaceCarPhysics();
 978         }
 979         else if (self.movetype == MOVETYPE_NOCLIP || self.movetype == MOVETYPE_FLY)
 980         {
 981                 // noclipping or flying
 982                 self.flags &~= FL_ONGROUND;
 983
 984                 self.velocity = self.velocity * (1 - frametime * sv_friction);
 985                 makevectors(self.v_angle);
 986                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 987                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
 988                 // acceleration
 989                 wishdir = normalize(wishvel);
 990                 wishspeed = vlen(wishvel);
 991                 if (wishspeed > sv_maxspeed*maxspd_mod)
 992                         wishspeed = sv_maxspeed*maxspd_mod;
 993                 if (time >= self.teleport_time)
 994                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0, 0);
 995         }
 996         else if (self.waterlevel >= WATERLEVEL_SWIMMING)
 997         {
 998                 // swimming
 999                 self.flags &~= FL_ONGROUND;
1000
1001                 makevectors(self.v_angle);
1002                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
1003                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
1004                 if (wishvel == '0 0 0')
1005                         wishvel = '0 0 -60'; // drift towards bottom
1006
1007                 wishdir = normalize(wishvel);
1008                 wishspeed = vlen(wishvel);
1009                 if (wishspeed > sv_maxspeed*maxspd_mod)
1010                         wishspeed = sv_maxspeed*maxspd_mod;
1011                 wishspeed = wishspeed * 0.7;
1012
1013                 // water friction
1014                 self.velocity = self.velocity * (1 - frametime * sv_friction);
1015
1016                 // water acceleration
1017                 PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0, 0);
1018         }
1019         else if (time < self.ladder_time)
1020         {
1021                 // on a spawnfunc_func_ladder or swimming in spawnfunc_func_water
1022                 self.flags &~= FL_ONGROUND;
1023
1024                 self.velocity = self.velocity * (1 - frametime * sv_friction);
1025                 makevectors(self.v_angle);
1026                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
1027                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
1028                 if (self.gravity)
1029                         self.velocity_z = self.velocity_z + self.gravity * sv_gravity * frametime;
1030                 else
1031                         self.velocity_z = self.velocity_z + sv_gravity * frametime;
1032                 if (self.ladder_entity.classname == "func_water")
1033                 {
1034                         f = vlen(wishvel);
1035                         if (f > self.ladder_entity.speed)
1036                                 wishvel = wishvel * (self.ladder_entity.speed / f);
1037
1038                         self.watertype = self.ladder_entity.skin;
1039                         f = self.ladder_entity.origin_z + self.ladder_entity.maxs_z;
1040                         if ((self.origin_z + self.view_ofs_z) < f)
1041                                 self.waterlevel = WATERLEVEL_SUBMERGED;
1042                         else if ((self.origin_z + (self.mins_z + self.maxs_z) * 0.5) < f)
1043                                 self.waterlevel = WATERLEVEL_SWIMMING;
1044                         else if ((self.origin_z + self.mins_z + 1) < f)
1045                                 self.waterlevel = WATERLEVEL_WETFEET;
1046                         else
1047                         {
1048                                 self.waterlevel = WATERLEVEL_NONE;
1049                                 self.watertype = CONTENT_EMPTY;
1050                         }
1051                 }
1052                 // acceleration
1053                 wishdir = normalize(wishvel);
1054                 wishspeed = vlen(wishvel);
1055                 if (wishspeed > sv_maxspeed*maxspd_mod)
1056                         wishspeed = sv_maxspeed*maxspd_mod;
1057                 if (time >= self.teleport_time)
1058                 {
1059                         // water acceleration
1060                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0, 0);
1061                 }
1062         }
1063         else if ((self.items & IT_JETPACK) && self.BUTTON_HOOK && (!cvar("g_jetpack_fuel") || self.ammo_fuel >= 0.01 || self.items & IT_UNLIMITED_WEAPON_AMMO))
1064         {
1065                 //makevectors(self.v_angle_y * '0 1 0');
1066                 makevectors(self.v_angle);
1067                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1068                 // add remaining speed as Z component
1069                 maxairspd = sv_maxairspeed*max(1, maxspd_mod);
1070                 // fix speedhacks :P
1071                 wishvel = normalize(wishvel) * min(vlen(wishvel) / maxairspd, 1);
1072                 // add the unused velocity as up component
1073                 wishvel_z = 0;
1074
1075                 // if(self.BUTTON_JUMP)
1076                         wishvel_z = sqrt(max(0, 1 - wishvel * wishvel));
1077
1078                 // it is now normalized, so...
1079                 float a_side, a_up, a_add, a_diff;
1080                 a_side = cvar("g_jetpack_acceleration_side");
1081                 a_up = cvar("g_jetpack_acceleration_up");
1082                 a_add = cvar("g_jetpack_antigravity") * sv_gravity;
1083
1084                 wishvel_x *= a_side;
1085                 wishvel_y *= a_side;
1086                 wishvel_z *= a_up;
1087                 wishvel_z += a_add;
1088
1089                 float best;
1090                 best = 0;
1091                 //////////////////////////////////////////////////////////////////////////////////////
1092                 // finding the maximum over all vectors of above form
1093                 // with wishvel having an absolute value of 1
1094                 //////////////////////////////////////////////////////////////////////////////////////
1095                 // we're finding the maximum over
1096                 //   f(a_side, a_up, a_add, z) := a_side * (1 - z^2) + (a_add + a_up * z)^2;
1097                 // for z in the range from -1 to 1
1098                 //////////////////////////////////////////////////////////////////////////////////////
1099                 // maximum is EITHER attained at the single extreme point:
1100                 a_diff = a_side * a_side - a_up * a_up;
1101                 if(a_diff != 0)
1102                 {
1103                         f = a_add * a_up / a_diff; // this is the zero of diff(f(a_side, a_up, a_add, z), z)
1104                         if(f > -1 && f < 1) // can it be attained?
1105                         {
1106                                 best = (a_diff + a_add * a_add) * (a_diff + a_up * a_up) / a_diff;
1107                                 //print("middle\n");
1108                         }
1109                 }
1110                 // OR attained at z = 1:
1111                 f = (a_up + a_add) * (a_up + a_add);
1112                 if(f > best)
1113                 {
1114                         best = f;
1115                         //print("top\n");
1116                 }
1117                 // OR attained at z = -1:
1118                 f = (a_up - a_add) * (a_up - a_add);
1119                 if(f > best)
1120                 {
1121                         best = f;
1122                         //print("bottom\n");
1123                 }
1124                 best = sqrt(best);
1125                 //////////////////////////////////////////////////////////////////////////////////////
1126
1127                 //print("best possible acceleration: ", ftos(best), "\n");
1128
1129                 float fxy, fz;
1130                 fxy = bound(0, 1 - (self.velocity * normalize(wishvel_x * '1 0 0' + wishvel_y * '0 1 0')) / cvar("g_jetpack_maxspeed_side"), 1);
1131                 if(wishvel_z - sv_gravity > 0)
1132                         fz = bound(0, 1 - self.velocity_z / cvar("g_jetpack_maxspeed_up"), 1);
1133                 else
1134                         fz = bound(0, 1 + self.velocity_z / cvar("g_jetpack_maxspeed_up"), 1);
1135
1136                 float fvel;
1137                 fvel = vlen(wishvel);
1138                 wishvel_x *= fxy;
1139                 wishvel_y *= fxy;
1140                 wishvel_z = (wishvel_z - sv_gravity) * fz + sv_gravity;
1141
1142                 fvel = min(1, vlen(wishvel) / best);
1143                 if(cvar("g_jetpack_fuel") && !(self.items & IT_UNLIMITED_WEAPON_AMMO))
1144                         f = min(1, self.ammo_fuel / (cvar("g_jetpack_fuel") * frametime * fvel));
1145                 else
1146                         f = 1;
1147
1148                 //print("this acceleration: ", ftos(vlen(wishvel) * f), "\n");
1149
1150                 if (f > 0 && wishvel != '0 0 0')
1151                 {
1152                         self.velocity = self.velocity + wishvel * f * frametime;
1153                         if not(self.items & IT_UNLIMITED_WEAPON_AMMO)
1154                                 self.ammo_fuel -= cvar("g_jetpack_fuel") * frametime * fvel * f;
1155                         self.flags &~= FL_ONGROUND;
1156                         self.items |= IT_USING_JETPACK;
1157
1158                         // jetpack also inhibits health regeneration, but only for 1 second
1159                         self.pauseregen_finished = max(self.pauseregen_finished, time + cvar("g_balance_pause_fuel_regen"));
1160                 }
1161         }
1162         else if (self.flags & FL_ONGROUND)
1163         {
1164                 // we get here if we ran out of ammo
1165                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1166                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1167
1168                 // walking
1169                 makevectors(self.v_angle_y * '0 1 0');
1170                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1171
1172                 if(!(self.lastflags & FL_ONGROUND))
1173                 {
1174                         if(cvar("speedmeter"))
1175                                 dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
1176                         if(self.lastground < time - 0.3)
1177                                 self.velocity = self.velocity * (1 - cvar("sv_friction_on_land"));
1178                         if(self.jumppadcount > 1)
1179                                 dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
1180                         self.jumppadcount = 0;
1181                 }
1182
1183 #ifdef LETS_TEST_FTEQCC
1184                 if(self.velocity_x || self.velocity_y)
1185                 {
1186                         // good
1187                 }
1188                 else
1189                 {
1190                         if(self.velocity_x)
1191                                 checkclient();
1192                         if(self.velocity_y)
1193                                 checkclient();
1194                 }
1195 #endif
1196
1197                 v = self.velocity;
1198                 v_z = 0;
1199                 f = vlen(v);
1200                 if(f > 0)
1201                 {
1202                         if (f < sv_stopspeed)
1203                                 f = 1 - frametime * (sv_stopspeed / f) * sv_friction;
1204                         else
1205                                 f = 1 - frametime * sv_friction;
1206                         if (f > 0)
1207                                 self.velocity = self.velocity * f;
1208                         else
1209                                 self.velocity = '0 0 0';
1210                 }
1211
1212                 // acceleration
1213                 wishdir = normalize(wishvel);
1214                 wishspeed = vlen(wishvel);
1215                 if (wishspeed > sv_maxspeed*maxspd_mod)
1216                         wishspeed = sv_maxspeed*maxspd_mod;
1217                 if (self.crouch)
1218                         wishspeed = wishspeed * 0.5;
1219                 if (time >= self.teleport_time)
1220                         PM_Accelerate(wishdir, wishspeed, wishspeed, sv_accelerate*maxspd_mod, 1, 0, 0);
1221         }
1222         else
1223         {
1224                 float wishspeed0;
1225                 // we get here if we ran out of ammo
1226                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1227                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1228
1229                 if(maxspd_mod < 1)
1230                 {
1231                         maxairspd = sv_maxairspeed*maxspd_mod;
1232                         airaccel = sv_airaccelerate*maxspd_mod;
1233                 }
1234                 else
1235                 {
1236                         maxairspd = sv_maxairspeed;
1237                         airaccel = sv_airaccelerate;
1238                 }
1239                 // airborn
1240                 makevectors(self.v_angle_y * '0 1 0');
1241                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1242                 // acceleration
1243                 wishdir = normalize(wishvel);
1244                 wishspeed = wishspeed0 = vlen(wishvel);
1245                 if (wishspeed0 > sv_maxspeed*maxspd_mod)
1246                         wishspeed0 = sv_maxspeed*maxspd_mod;
1247                 if (wishspeed > maxairspd)
1248                         wishspeed = maxairspd;
1249                 if (self.crouch)
1250                         wishspeed = wishspeed * 0.5;
1251                 if (time >= self.teleport_time)
1252                 {
1253                         float accelerating;
1254                         float wishspeed2;
1255                         float airaccelqw;
1256                         float strafity;
1257
1258                         airaccelqw = self.stat_sv_airaccel_qw;
1259                         accelerating = (self.velocity * wishdir > 0);
1260                         wishspeed2 = wishspeed;
1261
1262                         // CPM
1263                         if(sv_airstopaccelerate)
1264                         {
1265                                 vector curdir;
1266                                 curdir = self.velocity;
1267                                 curdir_z = 0;
1268                                 curdir = normalize(curdir);
1269                                 airaccel = airaccel + (sv_airstopaccelerate*maxspd_mod - airaccel) * max(0, -(curdir * wishdir));
1270                         }
1271                         // note that for straight forward jumping:
1272                         // step = accel * frametime * wishspeed0;
1273                         // accel  = bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
1274                         // -->
1275                         // dv/dt = accel * maxspeed (when slow)
1276                         // dv/dt = accel * maxspeed * (1 - accelqw) (when fast)
1277                         // log dv/dt = logaccel + logmaxspeed (when slow)
1278                         // log dv/dt = logaccel + logmaxspeed + log(1 - accelqw) (when fast)
1279                         strafity = IsMoveInDirection(self.movement, -90) + IsMoveInDirection(self.movement, +90); // if one is nonzero, other is always zero
1280                         if(sv_maxairstrafespeed)
1281                                 wishspeed = min(wishspeed, GeomLerp(sv_maxairspeed*maxspd_mod, strafity, sv_maxairstrafespeed*maxspd_mod));
1282                         if(sv_airstrafeaccelerate)
1283                                 airaccel = GeomLerp(airaccel, strafity, sv_airstrafeaccelerate*maxspd_mod);
1284                         if(self.stat_sv_airstrafeaccel_qw)
1285                                 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));
1286                         // !CPM
1287
1288                         if(sv_warsowbunny_turnaccel && accelerating && self.movement_y == 0 && self.movement_x != 0)
1289                                 PM_AirAccelerate(wishdir, wishspeed);
1290                         else
1291                                 PM_Accelerate(wishdir, wishspeed, wishspeed0, airaccel, airaccelqw, sv_airaccel_sideways_friction / maxairspd, self.stat_sv_airspeedlimit_nonqw);
1292
1293                         if(sv_aircontrol)
1294                                 CPM_PM_Aircontrol(wishdir, wishspeed2);
1295                 }
1296         }
1297
1298         if((g_cts || g_race) && self.classname != "observer") {
1299                 if(vlen(self.velocity - self.velocity_z * '0 0 1') > speedaward_speed) {
1300                         speedaward_speed = vlen(self.velocity - self.velocity_z * '0 0 1');
1301                         speedaward_holder = self.netname;
1302                         speedaward_uid = self.crypto_idfp;
1303                         speedaward_lastupdate = time;
1304                 }
1305                 if(speedaward_speed > speedaward_lastsent && time - speedaward_lastupdate > 1) {
1306                         string rr;
1307                         if(g_cts)
1308                                 rr = CTS_RECORD;
1309                         else
1310                                 rr = RACE_RECORD;
1311                         race_send_speedaward(MSG_ALL);
1312                         speedaward_lastsent = speedaward_speed;
1313                         if (speedaward_speed > speedaward_alltimebest && speedaward_uid != "") {
1314                                 speedaward_alltimebest = speedaward_speed;
1315                                 speedaward_alltimebest_holder = speedaward_holder;
1316                                 speedaward_alltimebest_uid = speedaward_uid;
1317                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/speed"), ftos(speedaward_alltimebest));
1318                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/crypto_idfp"), speedaward_alltimebest_uid);
1319                                 race_send_speedaward_alltimebest(MSG_ALL);
1320                         }
1321                 }
1322         }
1323
1324         float xyspeed;
1325         xyspeed = vlen('1 0 0' * self.velocity_x + '0 1 0' * self.velocity_y);
1326         if(self.weapon == WEP_NEX && cvar("g_balance_nex_charge") && cvar("g_balance_nex_charge_velocity_rate") && xyspeed > cvar("g_balance_nex_charge_minspeed"))
1327         {
1328                 // add a maximum of charge_velocity_rate when going fast (f = 1), gradually increasing from minspeed (f = 0) to maxspeed
1329                 xyspeed = min(xyspeed, cvar("g_balance_nex_charge_maxspeed"));
1330                 f = (xyspeed - cvar("g_balance_nex_charge_minspeed")) / (cvar("g_balance_nex_charge_maxspeed") - cvar("g_balance_nex_charge_minspeed"));
1331                 // add the extra charge
1332                 self.nex_charge = min(1, self.nex_charge + cvar("g_balance_nex_charge_velocity_rate") * f * frametime);
1333         }
1334 :end
1335         if(self.flags & FL_ONGROUND)
1336                 self.lastground = time;
1337
1338         self.lastflags = self.flags;
1339         self.lastclassname = self.classname;
1340 };