qcsrc/server/cl_physics.qc

   1 .float race_penalty;
   2 .float restart_jump;
   3
   4 .float ladder_time;
   5 .entity ladder_entity;
   6 .float gravity;
   7 .float swamp_slowdown;
   8 .float lastflags;
   9 .float lastground;
  10 .float wasFlying;
  11 .float spectatorspeed;
  12
  13 .float multijump_count;
  14 .float multijump_ready;
  15 .float prevjumpbutton;
  16
  17 /*
  18 =============
  19 PlayerJump
  20
  21 When you press the jump key
  22 =============
  23 */
  24 void PlayerJump (void)
  25 {
  26         if(self.freezetag_frozen)
  27                 return; // no jumping in freezetag when frozen
  28
  29         float mjumpheight;
  30         float doublejump;
  31
  32         doublejump = FALSE;
  33         if (autocvar_sv_doublejump)
  34         {
  35                 tracebox(self.origin + '0 0 0.01', self.mins, self.maxs, self.origin - '0 0 0.01', MOVE_NORMAL, self);
  36                 if (trace_fraction < 1 && trace_plane_normal_z > 0.7)
  37                 {
  38                         doublejump = TRUE;
  39
  40                         // we MUST clip velocity here!
  41                         float f;
  42                         f = self.velocity * trace_plane_normal;
  43                         if(f < 0)
  44                                 self.velocity -= f * trace_plane_normal;
  45                 }
  46         }
  47
  48         mjumpheight = autocvar_sv_jumpvelocity;
  49         if (self.waterlevel >= WATERLEVEL_SWIMMING)
  50         {
  51                 if (self.watertype == CONTENT_WATER)
  52                         self.velocity_z = 200;
  53                 else if (self.watertype == CONTENT_SLIME)
  54                         self.velocity_z = 80;
  55                 else
  56                         self.velocity_z = 50;
  57
  58                 return;
  59         }
  60
  61         if (autocvar_g_multijump)
  62         {
  63                 if (self.prevjumpbutton == FALSE && !(self.flags & FL_ONGROUND)) // jump button pressed this frame and we are in midair
  64                         self.multijump_ready = TRUE;  // this is necessary to check that we released the jump button and pressed it again
  65                 else
  66                         self.multijump_ready = FALSE;
  67         }
  68
  69         if(!doublejump && self.multijump_ready && self.multijump_count < autocvar_g_multijump && self.velocity_z > autocvar_g_multijump_speed)
  70         {
  71                 // doublejump = FALSE; // checked above in the if
  72                 if (autocvar_g_multijump)
  73                 {
  74                         if (autocvar_g_multijump_add == 0) // in this case we make the z velocity == jumpvelocity
  75                         {
  76                                 if (self.velocity_z < mjumpheight)
  77                                 {
  78                                         doublejump = TRUE;
  79                                         self.velocity_z = 0;
  80                                 }
  81                         }
  82                         else
  83                                 doublejump = TRUE;
  84
  85                         if(doublejump)
  86                         {
  87                                 if(self.movement_x != 0 || self.movement_y != 0) // don't remove all speed if player isnt pressing any movement keys
  88                                 {
  89                                         float curspeed;
  90                                         vector wishvel, wishdir;
  91
  92                                         curspeed = max(
  93                                                 vlen(vec2(self.velocity)), // current xy speed
  94                                                 vlen(vec2(antilag_takebackavgvelocity(self, max(self.lastteleporttime + sys_frametime, time - 0.25), time))) // average xy topspeed over the last 0.25 secs
  95                                         );
  96                                         makevectors(self.v_angle_y * '0 1 0');
  97                                         wishvel = v_forward * self.movement_x + v_right * self.movement_y;
  98                                         wishdir = normalize(wishvel);
  99
 100                                         self.velocity_x = wishdir_x * curspeed; // allow "dodging" at a multijump
 101                                         self.velocity_y = wishdir_y * curspeed;
 102                                         // keep velocity_z unchanged!
 103                                 }
 104                                 if (autocvar_g_multijump > 0)
 105                                         self.multijump_count += 1;
 106                         }
 107                 }
 108                 self.multijump_ready = FALSE; // require releasing and pressing the jump button again for the next jump
 109         }
 110
 111         if (!doublejump)
 112                 if (!(self.flags & FL_ONGROUND))
 113                         return;
 114
 115         if(self.cvar_cl_movement_track_canjump)
 116                 if (!(self.flags & FL_JUMPRELEASED))
 117                         return;
 118
 119         if(self.health <= g_bloodloss)
 120                 return;
 121
 122         // sv_jumpspeedcap_min/sv_jumpspeedcap_max act as baseline
 123         // velocity bounds.  Final velocity is bound between (jumpheight *
 124         // min + jumpheight) and (jumpheight * max + jumpheight);
 125
 126         if(autocvar_sv_jumpspeedcap_min != "")
 127         {
 128                 float minjumpspeed;
 129
 130                 minjumpspeed = mjumpheight * stof(autocvar_sv_jumpspeedcap_min);
 131
 132                 if (self.velocity_z < minjumpspeed)
 133                         mjumpheight += minjumpspeed - self.velocity_z;
 134         }
 135
 136         if(autocvar_sv_jumpspeedcap_max != "")
 137         {
 138                 // don't do jump speedcaps on ramps to preserve old xonotic ramjump style
 139                 tracebox(self.origin + '0 0 0.01', self.mins, self.maxs, self.origin - '0 0 0.01', MOVE_NORMAL, self);
 140
 141                 if(!(trace_fraction < 1 && trace_plane_normal_z < 0.98 && autocvar_sv_jumpspeedcap_max_disable_on_ramps))
 142                 {
 143                         float maxjumpspeed;
 144
 145                         maxjumpspeed = mjumpheight * stof(autocvar_sv_jumpspeedcap_max);
 146
 147                         if (self.velocity_z > maxjumpspeed)
 148                                 mjumpheight -= self.velocity_z - maxjumpspeed;
 149                 }
 150         }
 151
 152         if(!(self.lastflags & FL_ONGROUND))
 153         {
 154                 if(autocvar_speedmeter)
 155                         dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
 156                 if(self.lastground < time - 0.3)
 157                 {
 158                         self.velocity_x *= (1 - autocvar_sv_friction_on_land);
 159                         self.velocity_y *= (1 - autocvar_sv_friction_on_land);
 160                 }
 161                 if(self.jumppadcount > 1)
 162                         dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
 163                 self.jumppadcount = 0;
 164         }
 165
 166         self.velocity_z = self.velocity_z + mjumpheight;
 167         self.oldvelocity_z = self.velocity_z;
 168
 169         self.flags &~= FL_ONGROUND;
 170         self.flags &~= FL_JUMPRELEASED;
 171
 172         if (self.crouch)
 173                 setanim(self, self.anim_duckjump, FALSE, TRUE, TRUE);
 174         else
 175                 setanim(self, self.anim_jump, FALSE, TRUE, TRUE);
 176
 177         if(g_jump_grunt)
 178                 PlayerSound(playersound_jump, CH_PLAYER, VOICETYPE_PLAYERSOUND);
 179
 180         self.restart_jump = -1; // restart jump anim next time
 181         // value -1 is used to not use the teleport bit (workaround for tiny hitch when re-jumping)
 182 }
 183 void CheckWaterJump()
 184 {
 185         local vector start, end;
 186
 187 // check for a jump-out-of-water
 188         makevectors (self.angles);
 189         start = self.origin;
 190         start_z = start_z + 8;
 191         v_forward_z = 0;
 192         normalize(v_forward);
 193         end = start + v_forward*24;
 194         traceline (start, end, TRUE, self);
 195         if (trace_fraction < 1)
 196         {       // solid at waist
 197                 start_z = start_z + self.maxs_z - 8;
 198                 end = start + v_forward*24;
 199                 self.movedir = trace_plane_normal * -50;
 200                 traceline (start, end, TRUE, self);
 201                 if (trace_fraction == 1)
 202                 {       // open at eye level
 203                         self.flags |= FL_WATERJUMP;
 204                         self.velocity_z = 225;
 205                         self.flags &~= FL_JUMPRELEASED;
 206                         self.teleport_time = time + 2;  // safety net
 207                         return;
 208                 }
 209         }
 210 };
 211 void CheckPlayerJump()
 212 {
 213         if(self.flags & FL_ONGROUND)
 214         {
 215                 if (autocvar_g_multijump > 0)
 216                         self.multijump_count = 0;
 217                 else
 218                         self.multijump_count = -2; // the cvar value for infinite jumps is -1, so this needs to be smaller
 219         }
 220
 221         if (self.BUTTON_JUMP)
 222                 PlayerJump ();
 223         else
 224                 self.flags |= FL_JUMPRELEASED;
 225
 226         if (self.waterlevel == WATERLEVEL_SWIMMING)
 227                 CheckWaterJump ();
 228         self.prevjumpbutton = self.BUTTON_JUMP;
 229 }
 230
 231 float racecar_angle(float forward, float down)
 232 {
 233         float ret, angle_mult;
 234
 235         if(forward < 0)
 236         {
 237                 forward = -forward;
 238                 down = -down;
 239         }
 240
 241         ret = vectoyaw('0 1 0' * down + '1 0 0' * forward);
 242
 243         angle_mult = forward / (800 + forward);
 244
 245         if(ret > 180)
 246                 return ret * angle_mult + 360 * (1 - angle_mult);
 247         else
 248                 return ret * angle_mult;
 249 }
 250
 251 void RaceCarPhysics()
 252 {
 253         // using this move type for "big rigs"
 254         // the engine does not push the entity!
 255
 256         float accel, steer, f, myspeed, steerfactor;
 257         vector angles_save, rigvel;
 258
 259         angles_save = self.angles;
 260         accel = bound(-1, self.movement_x / self.stat_sv_maxspeed, 1);
 261         steer = bound(-1, self.movement_y / self.stat_sv_maxspeed, 1);
 262
 263         if(g_bugrigs_reverse_speeding)
 264         {
 265                 if(accel < 0)
 266                 {
 267                         // back accel is DIGITAL
 268                         // to prevent speedhack
 269                         if(accel < -0.5)
 270                                 accel = -1;
 271                         else
 272                                 accel = 0;
 273                 }
 274         }
 275
 276         self.angles_x = 0;
 277         self.angles_z = 0;
 278         makevectors(self.angles); // new forward direction!
 279
 280         if(self.flags & FL_ONGROUND || g_bugrigs_air_steering)
 281         {
 282                 float upspeed, accelfactor;
 283
 284                 myspeed = self.velocity * v_forward;
 285                 upspeed = self.velocity * v_up;
 286
 287                 // responsiveness factor for steering and acceleration
 288                 f = 1 / (1 + pow(max(-myspeed, myspeed) / g_bugrigs_speed_ref, g_bugrigs_speed_pow));
 289                 //MAXIMA: f(v) := 1 / (1 + (v / g_bugrigs_speed_ref) ^ g_bugrigs_speed_pow);
 290
 291                 if(myspeed < 0 && g_bugrigs_reverse_spinning)
 292                         steerfactor = -myspeed * g_bugrigs_steer;
 293                 else
 294                         steerfactor = -myspeed * f * g_bugrigs_steer;
 295
 296                 if(myspeed < 0 && g_bugrigs_reverse_speeding)
 297                         accelfactor = g_bugrigs_accel;
 298                 else
 299                         accelfactor = f * g_bugrigs_accel;
 300                 //MAXIMA: accel(v) := f(v) * g_bugrigs_accel;
 301
 302                 if(accel < 0)
 303                 {
 304                         if(myspeed > 0)
 305                         {
 306                                 myspeed = max(0, myspeed - frametime * (g_bugrigs_friction_floor - g_bugrigs_friction_brake * accel));
 307                         }
 308                         else
 309                         {
 310                                 if(!g_bugrigs_reverse_speeding)
 311                                         myspeed = min(0, myspeed + frametime * g_bugrigs_friction_floor);
 312                         }
 313                 }
 314                 else
 315                 {
 316                         if(myspeed >= 0)
 317                         {
 318                                 myspeed = max(0, myspeed - frametime * g_bugrigs_friction_floor);
 319                         }
 320                         else
 321                         {
 322                                 if(g_bugrigs_reverse_stopping)
 323                                         myspeed = 0;
 324                                 else
 325                                         myspeed = min(0, myspeed + frametime * (g_bugrigs_friction_floor + g_bugrigs_friction_brake * accel));
 326                         }
 327                 }
 328                 // terminal velocity = velocity at which 50 == accelfactor, that is, 1549 units/sec
 329                 //MAXIMA: friction(v) := g_bugrigs_friction_floor;
 330
 331                 self.angles_y += steer * frametime * steerfactor; // apply steering
 332                 makevectors(self.angles); // new forward direction!
 333
 334                 myspeed += accel * accelfactor * frametime;
 335
 336                 rigvel = myspeed * v_forward + '0 0 1' * upspeed;
 337         }
 338         else
 339         {
 340                 myspeed = vlen(self.velocity);
 341
 342                 // responsiveness factor for steering and acceleration
 343                 f = 1 / (1 + pow(max(0, myspeed / g_bugrigs_speed_ref), g_bugrigs_speed_pow));
 344                 steerfactor = -myspeed * f;
 345                 self.angles_y += steer * frametime * steerfactor; // apply steering
 346
 347                 rigvel = self.velocity;
 348                 makevectors(self.angles); // new forward direction!
 349         }
 350
 351         rigvel = rigvel * max(0, 1 - vlen(rigvel) * g_bugrigs_friction_air * frametime);
 352         //MAXIMA: airfriction(v) := v * v * g_bugrigs_friction_air;
 353         //MAXIMA: total_acceleration(v) := accel(v) - friction(v) - airfriction(v);
 354         //MAXIMA: solve(total_acceleration(v) = 0, v);
 355
 356         if(g_bugrigs_planar_movement)
 357         {
 358                 vector rigvel_xy, neworigin, up;
 359                 float mt;
 360
 361                 rigvel_z -= frametime * autocvar_sv_gravity; // 4x gravity plays better
 362                 rigvel_xy = vec2(rigvel);
 363
 364                 if(g_bugrigs_planar_movement_car_jumping && !g_touchexplode) // touchexplode is a better way to handle collisions
 365                         mt = MOVE_NORMAL;
 366                 else
 367                         mt = MOVE_NOMONSTERS;
 368
 369                 tracebox(self.origin, self.mins, self.maxs, self.origin + '0 0 1024', mt, self);
 370                 up = trace_endpos - self.origin;
 371
 372                 // BUG RIGS: align the move to the surface instead of doing collision testing
 373                 // can we move?
 374                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos + rigvel_xy * frametime, mt, self);
 375
 376                 // align to surface
 377                 tracebox(trace_endpos, self.mins, self.maxs, trace_endpos - up + '0 0 1' * rigvel_z * frametime, mt, self);
 378
 379                 if(trace_fraction < 0.5)
 380                 {
 381                         trace_fraction = 1;
 382                         neworigin = self.origin;
 383                 }
 384                 else
 385                         neworigin = trace_endpos;
 386
 387                 if(trace_fraction < 1)
 388                 {
 389                         // now set angles_x so that the car points parallel to the surface
 390                         self.angles = vectoangles(
 391                                         '1 0 0' * v_forward_x * trace_plane_normal_z
 392                                         +
 393                                         '0 1 0' * v_forward_y * trace_plane_normal_z
 394                                         +
 395                                         '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y)
 396                                         );
 397                         self.flags |= FL_ONGROUND;
 398                 }
 399                 else
 400                 {
 401                         // now set angles_x so that the car points forward, but is tilted in velocity direction
 402                         self.flags &~= FL_ONGROUND;
 403                 }
 404
 405                 self.velocity = (neworigin - self.origin) * (1.0 / frametime);
 406                 self.movetype = MOVETYPE_NOCLIP;
 407         }
 408         else
 409         {
 410                 rigvel_z -= frametime * autocvar_sv_gravity; // 4x gravity plays better
 411                 self.velocity = rigvel;
 412                 self.movetype = MOVETYPE_FLY;
 413         }
 414
 415         trace_fraction = 1;
 416         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 4', MOVE_NORMAL, self);
 417         if(trace_fraction != 1)
 418         {
 419                 self.angles = vectoangles2(
 420                                 '1 0 0' * v_forward_x * trace_plane_normal_z
 421                                 +
 422                                 '0 1 0' * v_forward_y * trace_plane_normal_z
 423                                 +
 424                                 '0 0 1' * -(v_forward_x * trace_plane_normal_x + v_forward_y * trace_plane_normal_y),
 425                                 trace_plane_normal
 426                                 );
 427         }
 428         else
 429         {
 430                 vector vel_local;
 431
 432                 vel_local_x = v_forward * self.velocity;
 433                 vel_local_y = v_right * self.velocity;
 434                 vel_local_z = v_up * self.velocity;
 435
 436                 self.angles_x = racecar_angle(vel_local_x, vel_local_z);
 437                 self.angles_z = racecar_angle(-vel_local_y, vel_local_z);
 438         }
 439
 440         // smooth the angles
 441         vector vf1, vu1, smoothangles;
 442         makevectors(self.angles);
 443         f = bound(0, frametime * g_bugrigs_angle_smoothing, 1);
 444         if(f == 0)
 445                 f = 1;
 446         vf1 = v_forward * f;
 447         vu1 = v_up * f;
 448         makevectors(angles_save);
 449         vf1 = vf1 + v_forward * (1 - f);
 450         vu1 = vu1 + v_up * (1 - f);
 451         smoothangles = vectoangles2(vf1, vu1);
 452         self.angles_x = -smoothangles_x;
 453         self.angles_z =  smoothangles_z;
 454 }
 455
 456 float IsMoveInDirection(vector mv, float angle) // key mix factor
 457 {
 458         if(mv_x == 0 && mv_y == 0)
 459                 return 0; // avoid division by zero
 460         angle -= RAD2DEG * atan2(mv_y, mv_x);
 461         angle = remainder(angle, 360) / 45;
 462         if(angle >  1)
 463                 return 0;
 464         if(angle < -1)
 465                 return 0;
 466         return 1 - fabs(angle);
 467 }
 468
 469 float GeomLerp(float a, float lerp, float b)
 470 {
 471         if(a == 0)
 472         {
 473                 if(lerp < 1)
 474                         return 0;
 475                 else
 476                         return b;
 477         }
 478         if(b == 0)
 479         {
 480                 if(lerp > 0)
 481                         return 0;
 482                 else
 483                         return a;
 484         }
 485         return a * pow(fabs(b / a), lerp);
 486 }
 487
 488 void CPM_PM_Aircontrol(vector wishdir, float wishspeed)
 489 {
 490         float zspeed, xyspeed, dot, k;
 491
 492 #if 0
 493         // this doesn't play well with analog input
 494         if(self.movement_x == 0 || self.movement_y != 0)
 495                 return; // can't control movement if not moving forward or backward
 496         k = 32;
 497 #else
 498         k = 32 * (2 * IsMoveInDirection(self.movement, 0) - 1);
 499         if(k <= 0)
 500                 return;
 501 #endif
 502
 503         k *= bound(0, wishspeed / autocvar_sv_maxairspeed, 1);
 504
 505         zspeed = self.velocity_z;
 506         self.velocity_z = 0;
 507         xyspeed = vlen(self.velocity); self.velocity = normalize(self.velocity);
 508
 509         dot = self.velocity * wishdir;
 510
 511         if(dot > 0) // we can't change direction while slowing down
 512         {
 513                 k *= pow(dot, autocvar_sv_aircontrol_power)*frametime;
 514                 xyspeed = max(0, xyspeed - autocvar_sv_aircontrol_penalty * sqrt(max(0, 1 - dot*dot)) * k/32);
 515                 k *= autocvar_sv_aircontrol;
 516                 self.velocity = normalize(self.velocity * xyspeed + wishdir * k);
 517         }
 518
 519         self.velocity = self.velocity * xyspeed;
 520         self.velocity_z = zspeed;
 521 }
 522
 523 float AdjustAirAccelQW(float accelqw, float factor)
 524 {
 525         return copysign(bound(0.000001, 1 - (1 - fabs(accelqw)) * factor, 1), accelqw);
 526 }
 527
 528 // example config for alternate speed clamping:
 529 //   sv_airaccel_qw 0.8
 530 //   sv_airaccel_sideways_friction 0
 531 //   prvm_globalset server speedclamp_mode 1
 532 //     (or 2)
 533 void PM_Accelerate(vector wishdir, float wishspeed, float wishspeed0, float accel, float accelqw, float stretchfactor, float sidefric, float speedlimit)
 534 {
 535         float vel_straight;
 536         float vel_z;
 537         vector vel_perpend;
 538         float step;
 539
 540         vector vel_xy;
 541         float vel_xy_current;
 542         float vel_xy_backward, vel_xy_forward;
 543         float speedclamp;
 544
 545         if(stretchfactor > 0)
 546                 speedclamp = stretchfactor;
 547         else if(accelqw < 0)
 548                 speedclamp = 1; // full clamping, no stretch
 549         else
 550                 speedclamp = -1; // no clamping
 551
 552         if(accelqw < 0)
 553                 accelqw = -accelqw;
 554
 555         if(autocvar_sv_gameplayfix_q2airaccelerate)
 556                 wishspeed0 = wishspeed;
 557
 558         vel_straight = self.velocity * wishdir;
 559         vel_z = self.velocity_z;
 560         vel_xy = vec2(self.velocity);
 561         vel_perpend = vel_xy - vel_straight * wishdir;
 562
 563         step = accel * frametime * wishspeed0;
 564
 565         vel_xy_current  = vlen(vel_xy);
 566         if(speedlimit)
 567                 accelqw = AdjustAirAccelQW(accelqw, (speedlimit - bound(wishspeed, vel_xy_current, speedlimit)) / max(1, speedlimit - wishspeed));
 568         vel_xy_forward  = vel_xy_current + bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
 569         vel_xy_backward = vel_xy_current - bound(0, wishspeed + vel_xy_current, step) * accelqw - step * (1 - accelqw);
 570         if(vel_xy_backward < 0)
 571                 vel_xy_backward = 0; // not that it REALLY occurs that this would cause wrong behaviour afterwards
 572
 573         vel_straight = vel_straight + bound(0, wishspeed - vel_straight, step) * accelqw + step * (1 - accelqw);
 574
 575         if(sidefric < 0 && (vel_perpend*vel_perpend))
 576                 // negative: only apply so much sideways friction to stay below the speed you could get by "braking"
 577         {
 578                 float f, fminimum;
 579                 f = max(0, 1 + frametime * wishspeed * sidefric);
 580                 fminimum = (vel_xy_backward*vel_xy_backward - vel_straight*vel_straight) / (vel_perpend*vel_perpend);
 581                 // this cannot be > 1
 582                 if(fminimum <= 0)
 583                         vel_perpend = vel_perpend * max(0, f);
 584                 else
 585                 {
 586                         fminimum = sqrt(fminimum);
 587                         vel_perpend = vel_perpend * max(fminimum, f);
 588                 }
 589         }
 590         else
 591                 vel_perpend = vel_perpend * max(0, 1 - frametime * wishspeed * sidefric);
 592
 593         vel_xy = vel_straight * wishdir + vel_perpend;
 594
 595         if(speedclamp >= 0)
 596         {
 597                 float vel_xy_preclamp;
 598                 vel_xy_preclamp = vlen(vel_xy);
 599                 if(vel_xy_preclamp > 0) // prevent division by zero
 600                 {
 601                         vel_xy_current += (vel_xy_forward - vel_xy_current) * speedclamp;
 602                         if(vel_xy_current < vel_xy_preclamp)
 603                                 vel_xy = vel_xy * (vel_xy_current / vel_xy_preclamp);
 604                 }
 605         }
 606
 607         self.velocity = vel_xy + vel_z * '0 0 1';
 608 }
 609
 610 void PM_AirAccelerate(vector wishdir, float wishspeed)
 611 {
 612         vector curvel, wishvel, acceldir, curdir;
 613         float addspeed, accelspeed, curspeed, f;
 614         float dot;
 615
 616         if(wishspeed == 0)
 617                 return;
 618
 619         curvel = self.velocity;
 620         curvel_z = 0;
 621         curspeed = vlen(curvel);
 622
 623         if(wishspeed > curspeed * 1.01)
 624         {
 625                 wishspeed = min(wishspeed, curspeed + autocvar_sv_warsowbunny_airforwardaccel * self.stat_sv_maxspeed * frametime);
 626         }
 627         else
 628         {
 629                 f = max(0, (autocvar_sv_warsowbunny_topspeed - curspeed) / (autocvar_sv_warsowbunny_topspeed - self.stat_sv_maxspeed));
 630                 wishspeed = max(curspeed, self.stat_sv_maxspeed) + autocvar_sv_warsowbunny_accel * f * self.stat_sv_maxspeed * frametime;
 631         }
 632         wishvel = wishdir * wishspeed;
 633         acceldir = wishvel - curvel;
 634         addspeed = vlen(acceldir);
 635         acceldir = normalize(acceldir);
 636
 637         accelspeed = min(addspeed, autocvar_sv_warsowbunny_turnaccel * self.stat_sv_maxspeed * frametime);
 638
 639         if(autocvar_sv_warsowbunny_backtosideratio < 1)
 640         {
 641                 curdir = normalize(curvel);
 642                 dot = acceldir * curdir;
 643                 if(dot < 0)
 644                         acceldir = acceldir - (1 - autocvar_sv_warsowbunny_backtosideratio) * dot * curdir;
 645         }
 646
 647         self.velocity += accelspeed * acceldir;
 648 }
 649
 650 .vector movement_old;
 651 .float buttons_old;
 652 .vector v_angle_old;
 653 .string lastclassname;
 654
 655 .float() PlayerPhysplug;
 656
 657 string specialcommand = "xwxwxsxsxaxdxaxdx1x ";
 658 .float specialcommand_pos;
 659 void SpecialCommand()
 660 {
 661 #ifdef TETRIS
 662         TetrisImpulse();
 663 #else
 664         if(!CheatImpulse(99))
 665                 print("A hollow voice says \"Plugh\".\n");
 666 #endif
 667 }
 668
 669 float speedaward_speed;
 670 string speedaward_holder;
 671 string speedaward_uid;
 672 void race_send_speedaward(float msg)
 673 {
 674         // send the best speed of the round
 675         WriteByte(msg, SVC_TEMPENTITY);
 676         WriteByte(msg, TE_CSQC_RACE);
 677         WriteByte(msg, RACE_NET_SPEED_AWARD);
 678         WriteInt24_t(msg, floor(speedaward_speed+0.5));
 679         WriteString(msg, speedaward_holder);
 680 }
 681
 682 float speedaward_alltimebest;
 683 string speedaward_alltimebest_holder;
 684 string speedaward_alltimebest_uid;
 685 void race_send_speedaward_alltimebest(float msg)
 686 {
 687         // send the best speed
 688         WriteByte(msg, SVC_TEMPENTITY);
 689         WriteByte(msg, TE_CSQC_RACE);
 690         WriteByte(msg, RACE_NET_SPEED_AWARD_BEST);
 691         WriteInt24_t(msg, floor(speedaward_alltimebest+0.5));
 692         WriteString(msg, speedaward_alltimebest_holder);
 693 }
 694
 695 string GetMapname(void);
 696 float speedaward_lastupdate;
 697 float speedaward_lastsent;
 698 void SV_PlayerPhysics()
 699 {
 700         local vector wishvel, wishdir, v;
 701         local float wishspeed, f, maxspd_mod, spd, maxairspd, airaccel, swampspd_mod, buttons;
 702         string temps;
 703         float buttons_prev;
 704         float not_allowed_to_move;
 705         string c;
 706
 707         WarpZone_PlayerPhysics_FixVAngle();
 708
 709         maxspd_mod = 1;
 710         if(g_minstagib && (self.items & IT_INVINCIBLE))
 711                 maxspd_mod *= autocvar_g_minstagib_speed_highspeed;
 712         if(self.ballcarried)
 713                 if(g_nexball)
 714                         maxspd_mod *= autocvar_g_nexball_basketball_carrier_highspeed;
 715                 else if(g_keepaway)
 716                         maxspd_mod *= autocvar_g_keepaway_ballcarrier_highspeed;
 717
 718         if(g_runematch)
 719         {
 720                 if(self.runes & RUNE_SPEED)
 721                 {
 722                         if(self.runes & CURSE_SLOW)
 723                                 maxspd_mod *= autocvar_g_balance_rune_speed_combo_highspeed;
 724                         else
 725                                 maxspd_mod *= autocvar_g_balance_rune_speed_highspeed;
 726                 }
 727                 else if(self.runes & CURSE_SLOW)
 728                 {
 729                         maxspd_mod *= autocvar_g_balance_curse_slow_highspeed;
 730                 }
 731         }
 732         maxspd_mod *= autocvar_g_movement_highspeed;
 733
 734         // fix physics stats for g_movement_highspeed
 735         self.stat_sv_airaccel_qw = AdjustAirAccelQW(autocvar_sv_airaccel_qw, maxspd_mod);
 736         if(autocvar_sv_airstrafeaccel_qw)
 737                 self.stat_sv_airstrafeaccel_qw = AdjustAirAccelQW(autocvar_sv_airstrafeaccel_qw, maxspd_mod);
 738         else
 739                 self.stat_sv_airstrafeaccel_qw = 0;
 740         self.stat_sv_airspeedlimit_nonqw = autocvar_sv_airspeedlimit_nonqw * maxspd_mod;
 741         self.stat_sv_maxspeed = autocvar_sv_maxspeed * maxspd_mod; // also slow walking
 742
 743     if(self.PlayerPhysplug)
 744         if(self.PlayerPhysplug())
 745             return;
 746
 747         self.race_movetime_frac += frametime;
 748         f = floor(self.race_movetime_frac);
 749         self.race_movetime_frac -= f;
 750         self.race_movetime_count += f;
 751         self.race_movetime = self.race_movetime_frac + self.race_movetime_count;
 752
 753         anticheat_physics();
 754
 755         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);
 756
 757         if(!buttons)
 758                 c = "x";
 759         else if(buttons == 1)
 760                 c = "1";
 761         else if(buttons == 2)
 762                 c = " ";
 763         else if(buttons == 128)
 764                 c = "s";
 765         else if(buttons == 256)
 766                 c = "w";
 767         else if(buttons == 512)
 768                 c = "a";
 769         else if(buttons == 1024)
 770                 c = "d";
 771         else
 772                 c = "?";
 773
 774         if(c == substring(specialcommand, self.specialcommand_pos, 1))
 775         {
 776                 self.specialcommand_pos += 1;
 777                 if(self.specialcommand_pos >= strlen(specialcommand))
 778                 {
 779                         self.specialcommand_pos = 0;
 780                         SpecialCommand();
 781                         return;
 782                 }
 783         }
 784         else if(self.specialcommand_pos && (c != substring(specialcommand, self.specialcommand_pos - 1, 1)))
 785                 self.specialcommand_pos = 0;
 786
 787         if(!sv_maxidle_spectatorsareidle || self.movetype == MOVETYPE_WALK)
 788         {
 789                 if(buttons != self.buttons_old || self.movement != self.movement_old || self.v_angle != self.v_angle_old)
 790                         self.parm_idlesince = time;
 791         }
 792         buttons_prev = self.buttons_old;
 793         self.buttons_old = buttons;
 794         self.movement_old = self.movement;
 795         self.v_angle_old = self.v_angle;
 796
 797         if(time < self.nickspamtime)
 798         if(self.nickspamcount >= autocvar_g_nick_flood_penalty_yellow)
 799         {
 800                 // slight annoyance for nick change scripts
 801                 self.movement = -1 * self.movement;
 802                 self.BUTTON_ATCK = self.BUTTON_JUMP = self.BUTTON_ATCK2 = self.BUTTON_ZOOM = self.BUTTON_CROUCH = self.BUTTON_HOOK = self.BUTTON_USE = 0;
 803
 804                 if(self.nickspamcount >= autocvar_g_nick_flood_penalty_red) // if you are persistent and the slight annoyance above does not stop you, I'll show you!
 805                 {
 806                         self.angles_x = random() * 360;
 807                         self.angles_y = random() * 360;
 808                         // at least I'm not forcing retardedview by also assigning to angles_z
 809                         self.fixangle = TRUE;
 810                 }
 811         }
 812
 813         if (self.punchangle != '0 0 0')
 814         {
 815                 f = vlen(self.punchangle) - 10 * frametime;
 816                 if (f > 0)
 817                         self.punchangle = normalize(self.punchangle) * f;
 818                 else
 819                         self.punchangle = '0 0 0';
 820         }
 821
 822         if (self.punchvector != '0 0 0')
 823         {
 824                 f = vlen(self.punchvector) - 30 * frametime;
 825                 if (f > 0)
 826                         self.punchvector = normalize(self.punchvector) * f;
 827                 else
 828                         self.punchvector = '0 0 0';
 829         }
 830
 831         if (clienttype(self) == CLIENTTYPE_BOT)
 832         {
 833                 if(playerdemo_read())
 834                         return;
 835                 bot_think();
 836         }
 837
 838         self.items &~= IT_USING_JETPACK;
 839
 840         if(self.classname == "player")
 841         {
 842                 if(self.race_penalty)
 843                         if(time > self.race_penalty)
 844                                 self.race_penalty = 0;
 845
 846                 not_allowed_to_move = 0;
 847                 if(self.race_penalty)
 848                         not_allowed_to_move = 1;
 849                 if(!autocvar_sv_ready_restart_after_countdown)
 850                 if(time < game_starttime)
 851                         not_allowed_to_move = 1;
 852
 853                 if(not_allowed_to_move)
 854                 {
 855                         self.velocity = '0 0 0';
 856                         self.movetype = MOVETYPE_NONE;
 857                         self.disableclientprediction = 2;
 858                 }
 859                 else if(self.disableclientprediction == 2)
 860                 {
 861                         if(self.movetype == MOVETYPE_NONE)
 862                                 self.movetype = MOVETYPE_WALK;
 863                         self.disableclientprediction = 0;
 864                 }
 865         }
 866
 867         if (self.movetype == MOVETYPE_NONE)
 868                 return;
 869
 870         // when we get here, disableclientprediction cannot be 2
 871         self.disableclientprediction = 0;
 872         if(time < self.ladder_time)
 873                 self.disableclientprediction = 1;
 874
 875         MUTATOR_CALLHOOK(PlayerPhysics);
 876
 877         maxspd_mod = 1;
 878
 879         swampspd_mod = 1;
 880         if(self.in_swamp) {
 881                 swampspd_mod = self.swamp_slowdown; //cvar("g_balance_swamp_moverate");
 882         }
 883
 884         if(self.classname != "player")
 885         {
 886                 maxspd_mod = autocvar_sv_spectator_speed_multiplier;
 887                 if(!self.spectatorspeed)
 888                         self.spectatorspeed = maxspd_mod;
 889                 if(self.impulse && self.impulse <= 19)
 890                 {
 891                         if(self.lastclassname != "player")
 892                         {
 893                                 if(self.impulse == 10 || self.impulse == 15 || self.impulse == 18)
 894                                         self.spectatorspeed = bound(1, self.spectatorspeed + 0.5, 5);
 895                                 else if(self.impulse == 11)
 896                                         self.spectatorspeed = maxspd_mod;
 897                                 else if(self.impulse == 12 || self.impulse == 16  || self.impulse == 19)
 898                                         self.spectatorspeed = bound(1, self.spectatorspeed - 0.5, 5);
 899                                 else if(self.impulse >= 1 && self.impulse <= 9)
 900                                         self.spectatorspeed = 1 + 0.5 * (self.impulse - 1);
 901                         } // otherwise just clear
 902                         self.impulse = 0;
 903                 }
 904                 maxspd_mod = self.spectatorspeed;
 905         }
 906
 907         spd = max(self.stat_sv_maxspeed, autocvar_sv_maxairspeed) * maxspd_mod * swampspd_mod;
 908         if(self.speed != spd)
 909         {
 910                 self.speed = spd;
 911                 temps = ftos(spd);
 912                 stuffcmd(self, strcat("cl_forwardspeed ", temps, "\n"));
 913                 stuffcmd(self, strcat("cl_backspeed ", temps, "\n"));
 914                 stuffcmd(self, strcat("cl_sidespeed ", temps, "\n"));
 915                 stuffcmd(self, strcat("cl_upspeed ", temps, "\n"));
 916         }
 917
 918         maxspd_mod *= swampspd_mod; // only one common speed modder please!
 919         swampspd_mod = 1;
 920
 921         // if dead, behave differently
 922         if (self.deadflag)
 923                 goto end;
 924
 925         if (!self.fixangle && !g_bugrigs)
 926         {
 927                 self.angles_x = 0;
 928                 self.angles_y = self.v_angle_y;
 929                 self.angles_z = 0;
 930         }
 931
 932         if(self.flags & FL_ONGROUND)
 933         if(self.classname == "player") // no fall sounds for observers thank you very much
 934         if(self.wasFlying)
 935         {
 936                 self.wasFlying = 0;
 937
 938                 if(self.waterlevel < WATERLEVEL_SWIMMING)
 939                 if(time >= self.ladder_time)
 940                 if not(self.hook)
 941                 {
 942                         self.nextstep = time + 0.3 + random() * 0.1;
 943                         trace_dphitq3surfaceflags = 0;
 944                         tracebox(self.origin, self.mins, self.maxs, self.origin - '0 0 1', MOVE_NOMONSTERS, self);
 945                         if not(trace_dphitq3surfaceflags & Q3SURFACEFLAG_NOSTEPS)
 946                         {
 947                                 if(trace_dphitq3surfaceflags & Q3SURFACEFLAG_METALSTEPS)
 948                                         GlobalSound(globalsound_metalfall, CH_PLAYER, VOICETYPE_PLAYERSOUND);
 949                                 else
 950                                         GlobalSound(globalsound_fall, CH_PLAYER, VOICETYPE_PLAYERSOUND);
 951                         }
 952                 }
 953         }
 954
 955         if(IsFlying(self))
 956                 self.wasFlying = 1;
 957
 958         if(self.classname == "player")
 959                 CheckPlayerJump();
 960
 961         if (self.flags & FL_WATERJUMP )
 962         {
 963                 self.velocity_x = self.movedir_x;
 964                 self.velocity_y = self.movedir_y;
 965                 if (time > self.teleport_time || self.waterlevel == WATERLEVEL_NONE)
 966                 {
 967                         self.flags &~= FL_WATERJUMP;
 968                         self.teleport_time = 0;
 969                 }
 970         }
 971         else if (g_bugrigs && self.classname == "player")
 972         {
 973                 RaceCarPhysics();
 974         }
 975         else if (self.movetype == MOVETYPE_NOCLIP || self.movetype == MOVETYPE_FLY || self.movetype == MOVETYPE_FLY_WORLDONLY)
 976         {
 977                 // noclipping or flying
 978                 self.flags &~= FL_ONGROUND;
 979
 980                 self.velocity = self.velocity * (1 - frametime * autocvar_sv_friction);
 981                 makevectors(self.v_angle);
 982                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 983                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
 984                 // acceleration
 985                 wishdir = normalize(wishvel);
 986                 wishspeed = vlen(wishvel);
 987                 if (wishspeed > self.stat_sv_maxspeed*maxspd_mod)
 988                         wishspeed = self.stat_sv_maxspeed*maxspd_mod;
 989                 if (time >= self.teleport_time)
 990                         PM_Accelerate(wishdir, wishspeed, wishspeed, autocvar_sv_accelerate*maxspd_mod, 1, 0, 0, 0);
 991         }
 992         else if (self.waterlevel >= WATERLEVEL_SWIMMING)
 993         {
 994                 // swimming
 995                 self.flags &~= FL_ONGROUND;
 996
 997                 makevectors(self.v_angle);
 998                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
 999                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
1000                 if (wishvel == '0 0 0')
1001                         wishvel = '0 0 -60'; // drift towards bottom
1002
1003                 wishdir = normalize(wishvel);
1004                 wishspeed = vlen(wishvel);
1005                 if (wishspeed > self.stat_sv_maxspeed*maxspd_mod)
1006                         wishspeed = self.stat_sv_maxspeed*maxspd_mod;
1007                 wishspeed = wishspeed * 0.7;
1008
1009                 // water friction
1010                 self.velocity = self.velocity * (1 - frametime * autocvar_sv_friction);
1011
1012                 // water acceleration
1013                 PM_Accelerate(wishdir, wishspeed, wishspeed, autocvar_sv_accelerate*maxspd_mod, 1, 0, 0, 0);
1014         }
1015         else if (time < self.ladder_time)
1016         {
1017                 // on a spawnfunc_func_ladder or swimming in spawnfunc_func_water
1018                 self.flags &~= FL_ONGROUND;
1019
1020                 float g;
1021                 g = autocvar_sv_gravity * frametime;
1022                 if(self.gravity)
1023                         g *= self.gravity;
1024                 if(autocvar_sv_gameplayfix_gravityunaffectedbyticrate)
1025                 {
1026                         g *= 0.5;
1027                         self.velocity_z += g;
1028                 }
1029
1030                 self.velocity = self.velocity * (1 - frametime * autocvar_sv_friction);
1031                 makevectors(self.v_angle);
1032                 //wishvel = v_forward * self.movement_x + v_right * self.movement_y + v_up * self.movement_z;
1033                 wishvel = v_forward * self.movement_x + v_right * self.movement_y + '0 0 1' * self.movement_z;
1034                 self.velocity_z += g;
1035                 if (self.ladder_entity.classname == "func_water")
1036                 {
1037                         f = vlen(wishvel);
1038                         if (f > self.ladder_entity.speed)
1039                                 wishvel = wishvel * (self.ladder_entity.speed / f);
1040
1041                         self.watertype = self.ladder_entity.skin;
1042                         f = self.ladder_entity.origin_z + self.ladder_entity.maxs_z;
1043                         if ((self.origin_z + self.view_ofs_z) < f)
1044                                 self.waterlevel = WATERLEVEL_SUBMERGED;
1045                         else if ((self.origin_z + (self.mins_z + self.maxs_z) * 0.5) < f)
1046                                 self.waterlevel = WATERLEVEL_SWIMMING;
1047                         else if ((self.origin_z + self.mins_z + 1) < f)
1048                                 self.waterlevel = WATERLEVEL_WETFEET;
1049                         else
1050                         {
1051                                 self.waterlevel = WATERLEVEL_NONE;
1052                                 self.watertype = CONTENT_EMPTY;
1053                         }
1054                 }
1055                 // acceleration
1056                 wishdir = normalize(wishvel);
1057                 wishspeed = vlen(wishvel);
1058                 if (wishspeed > self.stat_sv_maxspeed*maxspd_mod)
1059                         wishspeed = self.stat_sv_maxspeed*maxspd_mod;
1060                 if (time >= self.teleport_time)
1061                 {
1062                         // water acceleration
1063                         PM_Accelerate(wishdir, wishspeed, wishspeed, autocvar_sv_accelerate*maxspd_mod, 1, 0, 0, 0);
1064                 }
1065         }
1066         else if ((self.items & IT_JETPACK) && self.BUTTON_HOOK && (!autocvar_g_jetpack_fuel || self.ammo_fuel >= 0.01 || self.items & IT_UNLIMITED_WEAPON_AMMO))
1067         {
1068                 //makevectors(self.v_angle_y * '0 1 0');
1069                 makevectors(self.v_angle);
1070                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1071                 // add remaining speed as Z component
1072                 maxairspd = autocvar_sv_maxairspeed*max(1, maxspd_mod);
1073                 // fix speedhacks :P
1074                 wishvel = normalize(wishvel) * min(vlen(wishvel) / maxairspd, 1);
1075                 // add the unused velocity as up component
1076                 wishvel_z = 0;
1077
1078                 // if(self.BUTTON_JUMP)
1079                         wishvel_z = sqrt(max(0, 1 - wishvel * wishvel));
1080
1081                 // it is now normalized, so...
1082                 float a_side, a_up, a_add, a_diff;
1083                 a_side = autocvar_g_jetpack_acceleration_side;
1084                 a_up = autocvar_g_jetpack_acceleration_up;
1085                 a_add = autocvar_g_jetpack_antigravity * autocvar_sv_gravity;
1086
1087                 wishvel_x *= a_side;
1088                 wishvel_y *= a_side;
1089                 wishvel_z *= a_up;
1090                 wishvel_z += a_add;
1091
1092                 float best;
1093                 best = 0;
1094                 //////////////////////////////////////////////////////////////////////////////////////
1095                 // finding the maximum over all vectors of above form
1096                 // with wishvel having an absolute value of 1
1097                 //////////////////////////////////////////////////////////////////////////////////////
1098                 // we're finding the maximum over
1099                 //   f(a_side, a_up, a_add, z) := a_side * (1 - z^2) + (a_add + a_up * z)^2;
1100                 // for z in the range from -1 to 1
1101                 //////////////////////////////////////////////////////////////////////////////////////
1102                 // maximum is EITHER attained at the single extreme point:
1103                 a_diff = a_side * a_side - a_up * a_up;
1104                 if(a_diff != 0)
1105                 {
1106                         f = a_add * a_up / a_diff; // this is the zero of diff(f(a_side, a_up, a_add, z), z)
1107                         if(f > -1 && f < 1) // can it be attained?
1108                         {
1109                                 best = (a_diff + a_add * a_add) * (a_diff + a_up * a_up) / a_diff;
1110                                 //print("middle\n");
1111                         }
1112                 }
1113                 // OR attained at z = 1:
1114                 f = (a_up + a_add) * (a_up + a_add);
1115                 if(f > best)
1116                 {
1117                         best = f;
1118                         //print("top\n");
1119                 }
1120                 // OR attained at z = -1:
1121                 f = (a_up - a_add) * (a_up - a_add);
1122                 if(f > best)
1123                 {
1124                         best = f;
1125                         //print("bottom\n");
1126                 }
1127                 best = sqrt(best);
1128                 //////////////////////////////////////////////////////////////////////////////////////
1129
1130                 //print("best possible acceleration: ", ftos(best), "\n");
1131
1132                 float fxy, fz;
1133                 fxy = bound(0, 1 - (self.velocity * normalize(wishvel_x * '1 0 0' + wishvel_y * '0 1 0')) / autocvar_g_jetpack_maxspeed_side, 1);
1134                 if(wishvel_z - autocvar_sv_gravity > 0)
1135                         fz = bound(0, 1 - self.velocity_z / autocvar_g_jetpack_maxspeed_up, 1);
1136                 else
1137                         fz = bound(0, 1 + self.velocity_z / autocvar_g_jetpack_maxspeed_up, 1);
1138
1139                 float fvel;
1140                 fvel = vlen(wishvel);
1141                 wishvel_x *= fxy;
1142                 wishvel_y *= fxy;
1143                 wishvel_z = (wishvel_z - autocvar_sv_gravity) * fz + autocvar_sv_gravity;
1144
1145                 fvel = min(1, vlen(wishvel) / best);
1146                 if(autocvar_g_jetpack_fuel && !(self.items & IT_UNLIMITED_WEAPON_AMMO))
1147                         f = min(1, self.ammo_fuel / (autocvar_g_jetpack_fuel * frametime * fvel));
1148                 else
1149                         f = 1;
1150
1151                 //print("this acceleration: ", ftos(vlen(wishvel) * f), "\n");
1152
1153                 if (f > 0 && wishvel != '0 0 0')
1154                 {
1155                         self.velocity = self.velocity + wishvel * f * frametime;
1156                         if not(self.items & IT_UNLIMITED_WEAPON_AMMO)
1157                                 self.ammo_fuel -= autocvar_g_jetpack_fuel * frametime * fvel * f;
1158                         self.flags &~= FL_ONGROUND;
1159                         self.items |= IT_USING_JETPACK;
1160
1161                         // jetpack also inhibits health regeneration, but only for 1 second
1162                         self.pauseregen_finished = max(self.pauseregen_finished, time + autocvar_g_balance_pause_fuel_regen);
1163                 }
1164         }
1165         else if (self.flags & FL_ONGROUND)
1166         {
1167                 // we get here if we ran out of ammo
1168                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1169                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1170
1171                 // walking
1172                 makevectors(self.v_angle_y * '0 1 0');
1173                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1174
1175                 if(!(self.lastflags & FL_ONGROUND))
1176                 {
1177                         if(autocvar_speedmeter)
1178                                 dprint(strcat("landing velocity: ", vtos(self.velocity), " (abs: ", ftos(vlen(self.velocity)), ")\n"));
1179                         if(self.lastground < time - 0.3)
1180                                 self.velocity = self.velocity * (1 - autocvar_sv_friction_on_land);
1181                         if(self.jumppadcount > 1)
1182                                 dprint(strcat(ftos(self.jumppadcount), "x jumppad combo\n"));
1183                         self.jumppadcount = 0;
1184                 }
1185
1186 #ifdef LETS_TEST_FTEQCC
1187                 if(self.velocity_x || self.velocity_y)
1188                 {
1189                         // good
1190                 }
1191                 else
1192                 {
1193                         if(self.velocity_x)
1194                                 checkclient();
1195                         if(self.velocity_y)
1196                                 checkclient();
1197                 }
1198 #endif
1199
1200                 v = self.velocity;
1201                 v_z = 0;
1202                 f = vlen(v);
1203                 if(f > 0)
1204                 {
1205                         if (f < autocvar_sv_stopspeed)
1206                                 f = 1 - frametime * (autocvar_sv_stopspeed / f) * autocvar_sv_friction;
1207                         else
1208                                 f = 1 - frametime * autocvar_sv_friction;
1209                         if (f > 0)
1210                                 self.velocity = self.velocity * f;
1211                         else
1212                                 self.velocity = '0 0 0';
1213                 }
1214
1215                 // acceleration
1216                 wishdir = normalize(wishvel);
1217                 wishspeed = vlen(wishvel);
1218                 if (wishspeed > self.stat_sv_maxspeed*maxspd_mod)
1219                         wishspeed = self.stat_sv_maxspeed*maxspd_mod;
1220                 if (self.crouch)
1221                         wishspeed = wishspeed * 0.5;
1222                 if (time >= self.teleport_time)
1223                         PM_Accelerate(wishdir, wishspeed, wishspeed, autocvar_sv_accelerate*maxspd_mod, 1, 0, 0, 0);
1224         }
1225         else
1226         {
1227                 float wishspeed0;
1228                 // we get here if we ran out of ammo
1229                 if((self.items & IT_JETPACK) && self.BUTTON_HOOK && !(buttons_prev & 32))
1230                         sprint(self, "You don't have any fuel for the ^2Jetpack\n");
1231
1232                 if(maxspd_mod < 1)
1233                 {
1234                         maxairspd = autocvar_sv_maxairspeed*maxspd_mod;
1235                         airaccel = autocvar_sv_airaccelerate*maxspd_mod;
1236                 }
1237                 else
1238                 {
1239                         maxairspd = autocvar_sv_maxairspeed;
1240                         airaccel = autocvar_sv_airaccelerate;
1241                 }
1242                 // airborn
1243                 makevectors(self.v_angle_y * '0 1 0');
1244                 wishvel = v_forward * self.movement_x + v_right * self.movement_y;
1245                 // acceleration
1246                 wishdir = normalize(wishvel);
1247                 wishspeed = wishspeed0 = vlen(wishvel);
1248                 if (wishspeed0 > self.stat_sv_maxspeed*maxspd_mod)
1249                         wishspeed0 = self.stat_sv_maxspeed*maxspd_mod;
1250                 if (wishspeed > maxairspd)
1251                         wishspeed = maxairspd;
1252                 if (self.crouch)
1253                         wishspeed = wishspeed * 0.5;
1254                 if (time >= self.teleport_time)
1255                 {
1256                         float accelerating;
1257                         float wishspeed2;
1258                         float airaccelqw;
1259                         float strafity;
1260
1261                         airaccelqw = self.stat_sv_airaccel_qw;
1262                         accelerating = (self.velocity * wishdir > 0);
1263                         wishspeed2 = wishspeed;
1264
1265                         // CPM
1266                         if(autocvar_sv_airstopaccelerate)
1267                         {
1268                                 vector curdir;
1269                                 curdir = self.velocity;
1270                                 curdir_z = 0;
1271                                 curdir = normalize(curdir);
1272                                 airaccel = airaccel + (autocvar_sv_airstopaccelerate*maxspd_mod - airaccel) * max(0, -(curdir * wishdir));
1273                         }
1274                         // note that for straight forward jumping:
1275                         // step = accel * frametime * wishspeed0;
1276                         // accel  = bound(0, wishspeed - vel_xy_current, step) * accelqw + step * (1 - accelqw);
1277                         // -->
1278                         // dv/dt = accel * maxspeed (when slow)
1279                         // dv/dt = accel * maxspeed * (1 - accelqw) (when fast)
1280                         // log dv/dt = logaccel + logmaxspeed (when slow)
1281                         // log dv/dt = logaccel + logmaxspeed + log(1 - accelqw) (when fast)
1282                         strafity = IsMoveInDirection(self.movement, -90) + IsMoveInDirection(self.movement, +90); // if one is nonzero, other is always zero
1283                         if(autocvar_sv_maxairstrafespeed)
1284                                 wishspeed = min(wishspeed, GeomLerp(autocvar_sv_maxairspeed*maxspd_mod, strafity, autocvar_sv_maxairstrafespeed*maxspd_mod));
1285                         if(autocvar_sv_airstrafeaccelerate)
1286                                 airaccel = GeomLerp(airaccel, strafity, autocvar_sv_airstrafeaccelerate*maxspd_mod);
1287                         if(self.stat_sv_airstrafeaccel_qw)
1288                                 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));
1289                         // !CPM
1290
1291                         if(autocvar_sv_warsowbunny_turnaccel && accelerating && self.movement_y == 0 && self.movement_x != 0)
1292                                 PM_AirAccelerate(wishdir, wishspeed);
1293                         else
1294                                 PM_Accelerate(wishdir, wishspeed, wishspeed0, airaccel, airaccelqw, autocvar_sv_airaccel_qw_stretchfactor, autocvar_sv_airaccel_sideways_friction / maxairspd, self.stat_sv_airspeedlimit_nonqw);
1295
1296                         if(autocvar_sv_aircontrol)
1297                                 CPM_PM_Aircontrol(wishdir, wishspeed2);
1298                 }
1299         }
1300
1301         if((g_cts || g_race) && self.classname != "observer") {
1302                 if(vlen(self.velocity - self.velocity_z * '0 0 1') > speedaward_speed) {
1303                         speedaward_speed = vlen(self.velocity - self.velocity_z * '0 0 1');
1304                         speedaward_holder = self.netname;
1305                         speedaward_uid = self.crypto_idfp;
1306                         speedaward_lastupdate = time;
1307                 }
1308                 if(speedaward_speed > speedaward_lastsent && time - speedaward_lastupdate > 1) {
1309                         string rr;
1310                         if(g_cts)
1311                                 rr = CTS_RECORD;
1312                         else
1313                                 rr = RACE_RECORD;
1314                         race_send_speedaward(MSG_ALL);
1315                         speedaward_lastsent = speedaward_speed;
1316                         if (speedaward_speed > speedaward_alltimebest && speedaward_uid != "") {
1317                                 speedaward_alltimebest = speedaward_speed;
1318                                 speedaward_alltimebest_holder = speedaward_holder;
1319                                 speedaward_alltimebest_uid = speedaward_uid;
1320                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/speed"), ftos(speedaward_alltimebest));
1321                                 db_put(ServerProgsDB, strcat(GetMapname(), rr, "speed/crypto_idfp"), speedaward_alltimebest_uid);
1322                                 race_send_speedaward_alltimebest(MSG_ALL);
1323                         }
1324                 }
1325         }
1326
1327         float xyspeed;
1328         xyspeed = vlen('1 0 0' * self.velocity_x + '0 1 0' * self.velocity_y);
1329         if(self.weapon == WEP_NEX && autocvar_g_balance_nex_charge && autocvar_g_balance_nex_charge_velocity_rate && xyspeed > autocvar_g_balance_nex_charge_minspeed)
1330         {
1331                 // add a maximum of charge_velocity_rate when going fast (f = 1), gradually increasing from minspeed (f = 0) to maxspeed
1332                 xyspeed = min(xyspeed, autocvar_g_balance_nex_charge_maxspeed);
1333                 f = (xyspeed - autocvar_g_balance_nex_charge_minspeed) / (autocvar_g_balance_nex_charge_maxspeed - autocvar_g_balance_nex_charge_minspeed);
1334                 // add the extra charge
1335                 self.nex_charge = min(1, self.nex_charge + autocvar_g_balance_nex_charge_velocity_rate * f * frametime);
1336         }
1337 :end
1338         if(self.flags & FL_ONGROUND)
1339                 self.lastground = time;
1340
1341         self.lastflags = self.flags;
1342         self.lastclassname = self.classname;
1343 };