view.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // view.c -- player eye positioning
  21
  22 #include "quakedef.h"
  23
  24 /*
  25
  26 The view is allowed to move slightly from it's true position for bobbing,
  27 but if it exceeds 8 pixels linear distance (spherical, not box), the list of
  28 entities sent from the server may not include everything in the pvs, especially
  29 when crossing a water boudnary.
  30
  31 */
  32
  33 cvar_t  cl_rollspeed = {"cl_rollspeed", "200"};
  34 cvar_t  cl_rollangle = {"cl_rollangle", "2.0"};
  35
  36 cvar_t  cl_bob = {"cl_bob","0.02", false};
  37 cvar_t  cl_bobcycle = {"cl_bobcycle","0.6", false};
  38 cvar_t  cl_bobup = {"cl_bobup","0.5", false};
  39
  40 cvar_t  v_kicktime = {"v_kicktime", "0.5", false};
  41 cvar_t  v_kickroll = {"v_kickroll", "0.6", false};
  42 cvar_t  v_kickpitch = {"v_kickpitch", "0.6", false};
  43
  44 cvar_t  v_iyaw_cycle = {"v_iyaw_cycle", "2", false};
  45 cvar_t  v_iroll_cycle = {"v_iroll_cycle", "0.5", false};
  46 cvar_t  v_ipitch_cycle = {"v_ipitch_cycle", "1", false};
  47 cvar_t  v_iyaw_level = {"v_iyaw_level", "0.3", false};
  48 cvar_t  v_iroll_level = {"v_iroll_level", "0.1", false};
  49 cvar_t  v_ipitch_level = {"v_ipitch_level", "0.3", false};
  50
  51 cvar_t  v_idlescale = {"v_idlescale", "0", false};
  52
  53 cvar_t  crosshair = {"crosshair", "0", true};
  54 cvar_t  cl_crossx = {"cl_crossx", "0", false};
  55 cvar_t  cl_crossy = {"cl_crossy", "0", false};
  56
  57 cvar_t  gl_cshiftpercent = {"gl_cshiftpercent", "100", false};
  58
  59 float   v_dmg_time, v_dmg_roll, v_dmg_pitch;
  60
  61 extern  int                     in_forward, in_forward2, in_back;
  62
  63
  64 /*
  65 ===============
  66 V_CalcRoll
  67
  68 Used by view and sv_user
  69 ===============
  70 */
  71 vec3_t  forward, right, up;
  72
  73 float V_CalcRoll (vec3_t angles, vec3_t velocity)
  74 {
  75         float   sign;
  76         float   side;
  77         float   value;
  78
  79         AngleVectors (angles, forward, right, up);
  80         side = DotProduct (velocity, right);
  81         sign = side < 0 ? -1 : 1;
  82         side = fabs(side);
  83
  84         value = cl_rollangle.value;
  85 //      if (cl.inwater)
  86 //              value *= 6;
  87
  88         if (side < cl_rollspeed.value)
  89                 side = side * value / cl_rollspeed.value;
  90         else
  91                 side = value;
  92
  93         return side*sign;
  94
  95 }
  96
  97
  98 /*
  99 ===============
 100 V_CalcBob
 101
 102 ===============
 103 */
 104 float V_CalcBob (void)
 105 {
 106         float   bob;
 107         float   cycle;
 108
 109         cycle = cl.time - (int)(cl.time/cl_bobcycle.value)*cl_bobcycle.value;
 110         cycle /= cl_bobcycle.value;
 111         if (cycle < cl_bobup.value)
 112                 cycle = M_PI * cycle / cl_bobup.value;
 113         else
 114                 cycle = M_PI + M_PI*(cycle-cl_bobup.value)/(1.0 - cl_bobup.value);
 115
 116 // bob is proportional to velocity in the xy plane
 117 // (don't count Z, or jumping messes it up)
 118
 119         bob = sqrt(cl.velocity[0]*cl.velocity[0] + cl.velocity[1]*cl.velocity[1]) * cl_bob.value;
 120 //Con_Printf ("speed: %5.1f\n", Length(cl.velocity));
 121         bob = bob*0.3 + bob*0.7*sin(cycle);
 122         if (bob > 4)
 123                 bob = 4;
 124         else if (bob < -7)
 125                 bob = -7;
 126         return bob;
 127
 128 }
 129
 130
 131 //=============================================================================
 132
 133
 134 cvar_t  v_centermove = {"v_centermove", "0.15", false};
 135 cvar_t  v_centerspeed = {"v_centerspeed","500"};
 136
 137
 138 void V_StartPitchDrift (void)
 139 {
 140 #if 1
 141         if (cl.laststop == cl.time)
 142         {
 143                 return;         // something else is keeping it from drifting
 144         }
 145 #endif
 146         if (cl.nodrift || !cl.pitchvel)
 147         {
 148                 cl.pitchvel = v_centerspeed.value;
 149                 cl.nodrift = false;
 150                 cl.driftmove = 0;
 151         }
 152 }
 153
 154 void V_StopPitchDrift (void)
 155 {
 156         cl.laststop = cl.time;
 157         cl.nodrift = true;
 158         cl.pitchvel = 0;
 159 }
 160
 161 /*
 162 ===============
 163 V_DriftPitch
 164
 165 Moves the client pitch angle towards cl.idealpitch sent by the server.
 166
 167 If the user is adjusting pitch manually, either with lookup/lookdown,
 168 mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
 169
 170 Drifting is enabled when the center view key is hit, mlook is released and
 171 lookspring is non 0, or when
 172 ===============
 173 */
 174 void V_DriftPitch (void)
 175 {
 176         float           delta, move;
 177
 178         if (noclip_anglehack || !cl.onground || cls.demoplayback )
 179         {
 180                 cl.driftmove = 0;
 181                 cl.pitchvel = 0;
 182                 return;
 183         }
 184
 185 // don't count small mouse motion
 186         if (cl.nodrift)
 187         {
 188                 if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
 189                         cl.driftmove = 0;
 190                 else
 191                         cl.driftmove += host_frametime;
 192
 193                 if ( cl.driftmove > v_centermove.value)
 194                 {
 195                         V_StartPitchDrift ();
 196                 }
 197                 return;
 198         }
 199
 200         delta = cl.idealpitch - cl.viewangles[PITCH];
 201
 202         if (!delta)
 203         {
 204                 cl.pitchvel = 0;
 205                 return;
 206         }
 207
 208         move = host_frametime * cl.pitchvel;
 209         cl.pitchvel += host_frametime * v_centerspeed.value;
 210
 211 //Con_Printf ("move: %f (%f)\n", move, host_frametime);
 212
 213         if (delta > 0)
 214         {
 215                 if (move > delta)
 216                 {
 217                         cl.pitchvel = 0;
 218                         move = delta;
 219                 }
 220                 cl.viewangles[PITCH] += move;
 221         }
 222         else if (delta < 0)
 223         {
 224                 if (move > -delta)
 225                 {
 226                         cl.pitchvel = 0;
 227                         move = -delta;
 228                 }
 229                 cl.viewangles[PITCH] -= move;
 230         }
 231 }
 232
 233
 234
 235
 236
 237 /*
 238 ==============================================================================
 239
 240                                                 PALETTE FLASHES
 241
 242 ==============================================================================
 243 */
 244
 245
 246 cshift_t        cshift_empty = { {130,80,50}, 0 };
 247 cshift_t        cshift_water = { {130,80,50}, 128 };
 248 cshift_t        cshift_slime = { {0,25,5}, 150 };
 249 cshift_t        cshift_lava = { {255,80,0}, 150 };
 250
 251 byte            ramps[3][256];
 252 float           v_blend[4];             // rgba 0.0 - 1.0
 253
 254 /*
 255 ===============
 256 V_ParseDamage
 257 ===============
 258 */
 259 void V_ParseDamage (void)
 260 {
 261         int             armor, blood;
 262         vec3_t  from;
 263         int             i;
 264         vec3_t  forward, right, up;
 265         entity_t        *ent;
 266         float   side;
 267         float   count;
 268
 269         armor = MSG_ReadByte ();
 270         blood = MSG_ReadByte ();
 271         for (i=0 ; i<3 ; i++)
 272                 from[i] = MSG_ReadCoord ();
 273
 274         count = blood*0.5 + armor*0.5;
 275         if (count < 10)
 276                 count = 10;
 277
 278         cl.faceanimtime = cl.time + 0.2;                // but sbar face into pain frame
 279
 280         cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
 281         if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 282                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 283         if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 284                 cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 285
 286         if (armor > blood)
 287         {
 288                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 289                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 290                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 291         }
 292         else if (armor)
 293         {
 294                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 295                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 296                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 297         }
 298         else
 299         {
 300                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 301                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 302                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 303         }
 304
 305 //
 306 // calculate view angle kicks
 307 //
 308         ent = &cl_entities[cl.viewentity];
 309
 310         VectorSubtract (from, ent->origin, from);
 311         VectorNormalize (from);
 312
 313         AngleVectors (ent->angles, forward, right, up);
 314
 315         side = DotProduct (from, right);
 316         v_dmg_roll = count*side*v_kickroll.value;
 317
 318         side = DotProduct (from, forward);
 319         v_dmg_pitch = count*side*v_kickpitch.value;
 320
 321         v_dmg_time = v_kicktime.value;
 322 }
 323
 324
 325 /*
 326 ==================
 327 V_cshift_f
 328 ==================
 329 */
 330 void V_cshift_f (void)
 331 {
 332         cshift_empty.destcolor[0] = atoi(Cmd_Argv(1));
 333         cshift_empty.destcolor[1] = atoi(Cmd_Argv(2));
 334         cshift_empty.destcolor[2] = atoi(Cmd_Argv(3));
 335         cshift_empty.percent = atoi(Cmd_Argv(4));
 336 }
 337
 338
 339 /*
 340 ==================
 341 V_BonusFlash_f
 342
 343 When you run over an item, the server sends this command
 344 ==================
 345 */
 346 void V_BonusFlash_f (void)
 347 {
 348         cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 349         cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 350         cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 351         cl.cshifts[CSHIFT_BONUS].percent = 50;
 352 }
 353
 354 /*
 355 =============
 356 V_SetContentsColor
 357
 358 Underwater, lava, etc each has a color shift
 359 =============
 360 */
 361 void V_SetContentsColor (int contents)
 362 {
 363         cshift_t* c;
 364         c = &cl.cshifts[CSHIFT_CONTENTS]; // just to shorten the code below
 365         switch (contents)
 366         {
 367         case CONTENTS_EMPTY:
 368         case CONTENTS_SOLID:
 369                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_empty;
 370                 c->destcolor[0] = cshift_empty.destcolor[0];
 371                 c->destcolor[1] = cshift_empty.destcolor[1];
 372                 c->destcolor[2] = cshift_empty.destcolor[2];
 373                 c->percent = cshift_empty.percent;
 374                 break;
 375         case CONTENTS_LAVA:
 376                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_lava;
 377                 c->destcolor[0] = cshift_lava.destcolor[0];
 378                 c->destcolor[1] = cshift_lava.destcolor[1];
 379                 c->destcolor[2] = cshift_lava.destcolor[2];
 380                 c->percent = cshift_lava.percent;
 381                 break;
 382         case CONTENTS_SLIME:
 383                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_slime;
 384                 c->destcolor[0] = cshift_slime.destcolor[0];
 385                 c->destcolor[1] = cshift_slime.destcolor[1];
 386                 c->destcolor[2] = cshift_slime.destcolor[2];
 387                 c->percent = cshift_slime.percent;
 388                 break;
 389         default:
 390                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_water;
 391                 c->destcolor[0] = cshift_water.destcolor[0];
 392                 c->destcolor[1] = cshift_water.destcolor[1];
 393                 c->destcolor[2] = cshift_water.destcolor[2];
 394                 c->percent = cshift_water.percent;
 395         }
 396 }
 397
 398 /*
 399 =============
 400 V_CalcPowerupCshift
 401 =============
 402 */
 403 void V_CalcPowerupCshift (void)
 404 {
 405         if (cl.items & IT_QUAD)
 406         {
 407                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 408                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 409                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 410                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 411         }
 412         else if (cl.items & IT_SUIT)
 413         {
 414                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 415                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 416                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 417                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 418         }
 419         else if (cl.items & IT_INVISIBILITY)
 420         {
 421                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 422                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 423                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 424                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 425         }
 426         else if (cl.items & IT_INVULNERABILITY)
 427         {
 428                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 429                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 430                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 431                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 432         }
 433         else
 434                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 435 }
 436
 437 /*
 438 =============
 439 V_CalcBlend
 440 =============
 441 */
 442 // LordHavoc: fixed V_CalcBlend
 443 void V_CalcBlend (void)
 444 {
 445         float   r, g, b, a, a2;
 446         int             j;
 447
 448         r = 0;
 449         g = 0;
 450         b = 0;
 451         a = 0;
 452
 453         if (gl_cshiftpercent.value)
 454         {
 455                 for (j=0 ; j<NUM_CSHIFTS ; j++)
 456                 {
 457                         a2 = ((cl.cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
 458
 459                         if (!a2)
 460                                 continue;
 461                         if (a2 > 1)
 462                                 a2 = 1;
 463                         r += (cl.cshifts[j].destcolor[0]-r) * a2;
 464                         g += (cl.cshifts[j].destcolor[1]-g) * a2;
 465                         b += (cl.cshifts[j].destcolor[2]-b) * a2;
 466                         a = 1 - (1 - a) * (1 - a2); // correct alpha multiply...  took a while to find it on the web
 467                 }
 468                 // saturate color (to avoid blending in black)
 469                 if (a)
 470                 {
 471                         a2 = 1 / a;
 472                         r *= a2;
 473                         g *= a2;
 474                         b *= a2;
 475                 }
 476         }
 477
 478         v_blend[0] = bound(0, r * (1.0/255.0), 1);
 479         v_blend[1] = bound(0, g * (1.0/255.0), 1);
 480         v_blend[2] = bound(0, b * (1.0/255.0), 1);
 481         v_blend[3] = bound(0, a              , 1);
 482 }
 483
 484 /*
 485 =============
 486 V_UpdatePalette
 487 =============
 488 */
 489 void V_UpdatePalette (void)
 490 {
 491         int             i, j;
 492         qboolean        new;
 493
 494         V_CalcPowerupCshift ();
 495
 496         new = false;
 497
 498         for (i=0 ; i<NUM_CSHIFTS ; i++)
 499         {
 500                 if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
 501                 {
 502                         new = true;
 503                         cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
 504                 }
 505                 for (j=0 ; j<3 ; j++)
 506                         if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
 507                         {
 508                                 new = true;
 509                                 cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
 510                         }
 511         }
 512
 513 // drop the damage value
 514         cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime*150;
 515         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 516                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 517
 518 // drop the bonus value
 519         cl.cshifts[CSHIFT_BONUS].percent -= host_frametime*100;
 520         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 521                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 522
 523         if (!new)
 524                 return;
 525
 526         V_CalcBlend ();
 527 }
 528
 529 /*
 530 ==============================================================================
 531
 532                                                 VIEW RENDERING
 533
 534 ==============================================================================
 535 */
 536
 537 float angledelta (float a)
 538 {
 539         a = anglemod(a);
 540         if (a > 180)
 541                 a -= 360;
 542         return a;
 543 }
 544
 545 /*
 546 ==================
 547 CalcGunAngle
 548 ==================
 549 */
 550 void CalcGunAngle (void)
 551 {
 552         float   yaw, pitch, move;
 553         static float oldyaw = 0;
 554         static float oldpitch = 0;
 555
 556         yaw = r_refdef.viewangles[YAW];
 557         pitch = -r_refdef.viewangles[PITCH];
 558
 559         yaw = angledelta(yaw - r_refdef.viewangles[YAW]) * 0.4;
 560         if (yaw > 10)
 561                 yaw = 10;
 562         if (yaw < -10)
 563                 yaw = -10;
 564         pitch = angledelta(-pitch - r_refdef.viewangles[PITCH]) * 0.4;
 565         if (pitch > 10)
 566                 pitch = 10;
 567         if (pitch < -10)
 568                 pitch = -10;
 569         move = host_frametime*20;
 570         if (yaw > oldyaw)
 571         {
 572                 if (oldyaw + move < yaw)
 573                         yaw = oldyaw + move;
 574         }
 575         else
 576         {
 577                 if (oldyaw - move > yaw)
 578                         yaw = oldyaw - move;
 579         }
 580
 581         if (pitch > oldpitch)
 582         {
 583                 if (oldpitch + move < pitch)
 584                         pitch = oldpitch + move;
 585         }
 586         else
 587         {
 588                 if (oldpitch - move > pitch)
 589                         pitch = oldpitch - move;
 590         }
 591
 592         oldyaw = yaw;
 593         oldpitch = pitch;
 594
 595         cl.viewent.angles[YAW] = r_refdef.viewangles[YAW] + yaw;
 596         cl.viewent.angles[PITCH] = - (r_refdef.viewangles[PITCH] + pitch);
 597
 598         cl.viewent.angles[ROLL] -= v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
 599         cl.viewent.angles[PITCH] -= v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
 600         cl.viewent.angles[YAW] -= v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
 601 }
 602
 603 /*
 604 ==============
 605 V_BoundOffsets
 606 ==============
 607 */
 608 void V_BoundOffsets (void)
 609 {
 610         entity_t        *ent;
 611
 612         ent = &cl_entities[cl.viewentity];
 613
 614 // absolutely bound refresh reletive to entity clipping hull
 615 // so the view can never be inside a solid wall
 616
 617         if (r_refdef.vieworg[0] < ent->origin[0] - 14)
 618                 r_refdef.vieworg[0] = ent->origin[0] - 14;
 619         else if (r_refdef.vieworg[0] > ent->origin[0] + 14)
 620                 r_refdef.vieworg[0] = ent->origin[0] + 14;
 621         if (r_refdef.vieworg[1] < ent->origin[1] - 14)
 622                 r_refdef.vieworg[1] = ent->origin[1] - 14;
 623         else if (r_refdef.vieworg[1] > ent->origin[1] + 14)
 624                 r_refdef.vieworg[1] = ent->origin[1] + 14;
 625         if (r_refdef.vieworg[2] < ent->origin[2] - 22)
 626                 r_refdef.vieworg[2] = ent->origin[2] - 22;
 627         else if (r_refdef.vieworg[2] > ent->origin[2] + 30)
 628                 r_refdef.vieworg[2] = ent->origin[2] + 30;
 629 }
 630
 631 /*
 632 ==============
 633 V_AddIdle
 634
 635 Idle swaying
 636 ==============
 637 */
 638 void V_AddIdle (void)
 639 {
 640         r_refdef.viewangles[ROLL] += v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
 641         r_refdef.viewangles[PITCH] += v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
 642         r_refdef.viewangles[YAW] += v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
 643 }
 644
 645
 646 /*
 647 ==============
 648 V_CalcViewRoll
 649
 650 Roll is induced by movement and damage
 651 ==============
 652 */
 653 void V_CalcViewRoll (void)
 654 {
 655         float           side;
 656
 657         side = V_CalcRoll (cl_entities[cl.viewentity].angles, cl.velocity);
 658         r_refdef.viewangles[ROLL] += side;
 659
 660         if (v_dmg_time > 0)
 661         {
 662                 r_refdef.viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 663                 r_refdef.viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 664                 v_dmg_time -= host_frametime;
 665         }
 666
 667         if (cl.stats[STAT_HEALTH] <= 0)
 668         {
 669                 r_refdef.viewangles[ROLL] = 80; // dead view angle
 670                 return;
 671         }
 672
 673 }
 674
 675
 676 /*
 677 ==================
 678 V_CalcIntermissionRefdef
 679
 680 ==================
 681 */
 682 void V_CalcIntermissionRefdef (void)
 683 {
 684         entity_t        *ent, *view;
 685         float           old;
 686
 687 // ent is the player model (visible when out of body)
 688         ent = &cl_entities[cl.viewentity];
 689 // view is the weapon model (only visible from inside body)
 690         view = &cl.viewent;
 691
 692         VectorCopy (ent->origin, r_refdef.vieworg);
 693         VectorCopy (ent->angles, r_refdef.viewangles);
 694         view->model = NULL;
 695
 696 // allways idle in intermission
 697         old = v_idlescale.value;
 698         v_idlescale.value = 1;
 699         V_AddIdle ();
 700         v_idlescale.value = old;
 701 }
 702
 703 /*
 704 ==================
 705 V_CalcRefdef
 706
 707 ==================
 708 */
 709 extern qboolean intimerefresh;
 710 void V_CalcRefdef (void)
 711 {
 712         entity_t        *ent, *view;
 713         int                     i;
 714         vec3_t          forward, right, up;
 715         vec3_t          angles;
 716         float           bob;
 717         static float oldz = 0;
 718
 719         V_DriftPitch ();
 720
 721 // ent is the player model (visible when out of body)
 722         ent = &cl_entities[cl.viewentity];
 723 // view is the weapon model (only visible from inside body)
 724         view = &cl.viewent;
 725
 726
 727 // transform the view offset by the model's matrix to get the offset from
 728 // model origin for the view
 729         ent->angles[YAW] = cl.viewangles[YAW];  // the model should face the view dir
 730         ent->angles[PITCH] = -cl.viewangles[PITCH];     // the model should face the view dir
 731
 732
 733         bob = V_CalcBob ();
 734
 735 // refresh position
 736         VectorCopy (ent->origin, r_refdef.vieworg);
 737         r_refdef.vieworg[2] += cl.viewheight + bob;
 738
 739 // never let it sit exactly on a node line, because a water plane can
 740 // dissapear when viewed with the eye exactly on it.
 741 // the server protocol only specifies to 1/16 pixel, so add 1/32 in each axis
 742         r_refdef.vieworg[0] += 1.0/32;
 743         r_refdef.vieworg[1] += 1.0/32;
 744         r_refdef.vieworg[2] += 1.0/32;
 745
 746         if (!intimerefresh)
 747         {
 748                 VectorCopy (cl.viewangles, r_refdef.viewangles);
 749         }
 750         V_CalcViewRoll ();
 751         V_AddIdle ();
 752
 753 // offsets
 754         angles[PITCH] = -ent->angles[PITCH];    // because entity pitches are
 755                                                                                         //  actually backward
 756         angles[YAW] = ent->angles[YAW];
 757         angles[ROLL] = ent->angles[ROLL];
 758
 759         AngleVectors (angles, forward, right, up);
 760
 761         V_BoundOffsets ();
 762
 763 // set up gun position
 764         VectorCopy (cl.viewangles, view->angles);
 765
 766         CalcGunAngle ();
 767
 768         VectorCopy (ent->origin, view->origin);
 769         view->origin[2] += cl.viewheight;
 770
 771         for (i=0 ; i<3 ; i++)
 772         {
 773                 view->origin[i] += forward[i]*bob*0.4;
 774 //              view->origin[i] += right[i]*bob*0.4;
 775 //              view->origin[i] += up[i]*bob*0.8;
 776         }
 777         view->origin[2] += bob;
 778
 779 // fudge position around to keep amount of weapon visible
 780 // roughly equal with different FOV
 781
 782 #if 0
 783         if (cl.model_precache[cl.stats[STAT_WEAPON]] && strcmp (cl.model_precache[cl.stats[STAT_WEAPON]]->name,  "progs/v_shot2.mdl"))
 784 #endif
 785 // LordHavoc: everyone hates the gun moving around
 786 /*
 787         if (scr_viewsize.value == 110)
 788                 view->origin[2] += 1;
 789         else if (scr_viewsize.value == 100)
 790                 view->origin[2] += 2;
 791         else if (scr_viewsize.value == 90)
 792                 view->origin[2] += 1;
 793         else if (scr_viewsize.value == 80)
 794                 view->origin[2] += 0.5;
 795 */
 796
 797         view->model = cl.model_precache[cl.stats[STAT_WEAPON]];
 798         view->frame = cl.stats[STAT_WEAPONFRAME];
 799         view->colormap = 0; //vid.colormap;
 800
 801 // set up the refresh position
 802         if (!intimerefresh)
 803         {
 804                 VectorAdd (r_refdef.viewangles, cl.punchangle, r_refdef.viewangles);
 805         }
 806
 807 // smooth out stair step ups
 808 if (cl.onground && ent->origin[2] - oldz > 0)
 809 {
 810         float steptime;
 811
 812         steptime = cl.time - cl.oldtime;
 813         if (steptime < 0)
 814 //FIXME         I_Error ("steptime < 0");
 815                 steptime = 0;
 816
 817         oldz += steptime * 80;
 818         if (oldz > ent->origin[2])
 819                 oldz = ent->origin[2];
 820         if (ent->origin[2] - oldz > 12)
 821                 oldz = ent->origin[2] - 12;
 822         r_refdef.vieworg[2] += oldz - ent->origin[2];
 823         view->origin[2] += oldz - ent->origin[2];
 824 }
 825 else
 826         oldz = ent->origin[2];
 827
 828         if (chase_active.value)
 829                 Chase_Update ();
 830 }
 831
 832 /*
 833 ==================
 834 V_RenderView
 835
 836 The player's clipping box goes from (-16 -16 -24) to (16 16 32) from
 837 the entity origin, so any view position inside that will be valid
 838 ==================
 839 */
 840 void V_RenderView (void)
 841 {
 842         if (con_forcedup)
 843                 return;
 844
 845         if (cl.intermission)
 846         {       // intermission / finale rendering
 847                 V_CalcIntermissionRefdef ();
 848         }
 849         else
 850         {
 851                 if (!cl.paused /* && (sv.maxclients > 1 || key_dest == key_game) */ )
 852                         V_CalcRefdef ();
 853         }
 854
 855         R_RenderView ();
 856 }
 857
 858 //============================================================================
 859
 860 /*
 861 =============
 862 V_Init
 863 =============
 864 */
 865 void V_Init (void)
 866 {
 867         Cmd_AddCommand ("v_cshift", V_cshift_f);
 868         Cmd_AddCommand ("bf", V_BonusFlash_f);
 869         Cmd_AddCommand ("centerview", V_StartPitchDrift);
 870
 871         Cvar_RegisterVariable (&v_centermove);
 872         Cvar_RegisterVariable (&v_centerspeed);
 873
 874         Cvar_RegisterVariable (&v_iyaw_cycle);
 875         Cvar_RegisterVariable (&v_iroll_cycle);
 876         Cvar_RegisterVariable (&v_ipitch_cycle);
 877         Cvar_RegisterVariable (&v_iyaw_level);
 878         Cvar_RegisterVariable (&v_iroll_level);
 879         Cvar_RegisterVariable (&v_ipitch_level);
 880
 881         Cvar_RegisterVariable (&v_idlescale);
 882         Cvar_RegisterVariable (&crosshair);
 883         Cvar_RegisterVariable (&cl_crossx);
 884         Cvar_RegisterVariable (&cl_crossy);
 885         Cvar_RegisterVariable (&gl_cshiftpercent);
 886
 887         Cvar_RegisterVariable (&cl_rollspeed);
 888         Cvar_RegisterVariable (&cl_rollangle);
 889         Cvar_RegisterVariable (&cl_bob);
 890         Cvar_RegisterVariable (&cl_bobcycle);
 891         Cvar_RegisterVariable (&cl_bobup);
 892
 893         Cvar_RegisterVariable (&v_kicktime);
 894         Cvar_RegisterVariable (&v_kickroll);
 895         Cvar_RegisterVariable (&v_kickpitch);
 896 }
 897
 898