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 = {0, "cl_rollspeed", "200"};
  34 cvar_t  cl_rollangle = {0, "cl_rollangle", "2.0"};
  35
  36 cvar_t  cl_bob = {0, "cl_bob","0.02"};
  37 cvar_t  cl_bobcycle = {0, "cl_bobcycle","0.6"};
  38 cvar_t  cl_bobup = {0, "cl_bobup","0.5"};
  39
  40 cvar_t  v_kicktime = {0, "v_kicktime", "0.5"};
  41 cvar_t  v_kickroll = {0, "v_kickroll", "0.6"};
  42 cvar_t  v_kickpitch = {0, "v_kickpitch", "0.6"};
  43
  44 cvar_t  v_punch = {0, "v_punch", "1"};
  45
  46 cvar_t  v_iyaw_cycle = {0, "v_iyaw_cycle", "2"};
  47 cvar_t  v_iroll_cycle = {0, "v_iroll_cycle", "0.5"};
  48 cvar_t  v_ipitch_cycle = {0, "v_ipitch_cycle", "1"};
  49 cvar_t  v_iyaw_level = {0, "v_iyaw_level", "0.3"};
  50 cvar_t  v_iroll_level = {0, "v_iroll_level", "0.1"};
  51 cvar_t  v_ipitch_level = {0, "v_ipitch_level", "0.3"};
  52
  53 cvar_t  v_idlescale = {0, "v_idlescale", "0"};
  54
  55 cvar_t  crosshair = {CVAR_SAVE, "crosshair", "0"};
  56
  57 //cvar_t        gl_cshiftpercent = {0, "gl_cshiftpercent", "100"};
  58 cvar_t  gl_polyblend = {CVAR_SAVE, "gl_polyblend", "1"};
  59
  60 cvar_t  v_centermove = {0, "v_centermove", "0.15"};
  61 cvar_t  v_centerspeed = {0, "v_centerspeed","500"};
  62
  63 float   v_dmg_time, v_dmg_roll, v_dmg_pitch;
  64
  65
  66 /*
  67 ===============
  68 V_CalcRoll
  69
  70 Used by view and sv_user
  71 ===============
  72 */
  73 float V_CalcRoll (vec3_t angles, vec3_t velocity)
  74 {
  75         vec3_t  right;
  76         float   sign;
  77         float   side;
  78         float   value;
  79
  80         AngleVectors (angles, NULL, right, NULL);
  81         side = DotProduct (velocity, right);
  82         sign = side < 0 ? -1 : 1;
  83         side = fabs(side);
  84
  85         value = cl_rollangle.value;
  86 //      if (cl.inwater)
  87 //              value *= 6;
  88
  89         if (side < cl_rollspeed.value)
  90                 side = side * value / cl_rollspeed.value;
  91         else
  92                 side = value;
  93
  94         return side*sign;
  95
  96 }
  97
  98
  99 /*
 100 ===============
 101 V_CalcBob
 102
 103 ===============
 104 */
 105 float V_CalcBob (void)
 106 {
 107         float   bob;
 108         float   cycle;
 109
 110         cycle = cl.time - (int)(cl.time/cl_bobcycle.value)*cl_bobcycle.value;
 111         cycle /= cl_bobcycle.value;
 112         if (cycle < cl_bobup.value)
 113                 cycle = M_PI * cycle / cl_bobup.value;
 114         else
 115                 cycle = M_PI + M_PI*(cycle-cl_bobup.value)/(1.0 - cl_bobup.value);
 116
 117 // bob is proportional to velocity in the xy plane
 118 // (don't count Z, or jumping messes it up)
 119
 120         bob = sqrt(cl.velocity[0]*cl.velocity[0] + cl.velocity[1]*cl.velocity[1]) * cl_bob.value;
 121 //Con_Printf ("speed: %5.1f\n", Length(cl.velocity));
 122         bob = bob*0.3 + bob*0.7*sin(cycle);
 123         if (bob > 4)
 124                 bob = 4;
 125         else if (bob < -7)
 126                 bob = -7;
 127         return bob;
 128
 129 }
 130
 131
 132 //=============================================================================
 133
 134
 135 void V_StartPitchDrift (void)
 136 {
 137 #if 1
 138         if (cl.laststop == cl.time)
 139         {
 140                 return;         // something else is keeping it from drifting
 141         }
 142 #endif
 143         if (cl.nodrift || !cl.pitchvel)
 144         {
 145                 cl.pitchvel = v_centerspeed.value;
 146                 cl.nodrift = false;
 147                 cl.driftmove = 0;
 148         }
 149 }
 150
 151 void V_StopPitchDrift (void)
 152 {
 153         cl.laststop = cl.time;
 154         cl.nodrift = true;
 155         cl.pitchvel = 0;
 156 }
 157
 158 /*
 159 ===============
 160 V_DriftPitch
 161
 162 Moves the client pitch angle towards cl.idealpitch sent by the server.
 163
 164 If the user is adjusting pitch manually, either with lookup/lookdown,
 165 mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
 166
 167 Drifting is enabled when the center view key is hit, mlook is released and
 168 lookspring is non 0, or when
 169 ===============
 170 */
 171 void V_DriftPitch (void)
 172 {
 173         float           delta, move;
 174
 175         if (noclip_anglehack || !cl.onground || cls.demoplayback )
 176         {
 177                 cl.driftmove = 0;
 178                 cl.pitchvel = 0;
 179                 return;
 180         }
 181
 182 // don't count small mouse motion
 183         if (cl.nodrift)
 184         {
 185                 if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
 186                         cl.driftmove = 0;
 187                 else
 188                         cl.driftmove += cl.frametime;
 189
 190                 if ( cl.driftmove > v_centermove.value)
 191                 {
 192                         V_StartPitchDrift ();
 193                 }
 194                 return;
 195         }
 196
 197         delta = cl.idealpitch - cl.viewangles[PITCH];
 198
 199         if (!delta)
 200         {
 201                 cl.pitchvel = 0;
 202                 return;
 203         }
 204
 205         move = cl.frametime * cl.pitchvel;
 206         cl.pitchvel += cl.frametime * v_centerspeed.value;
 207
 208 //Con_Printf ("move: %f (%f)\n", move, cl.frametime);
 209
 210         if (delta > 0)
 211         {
 212                 if (move > delta)
 213                 {
 214                         cl.pitchvel = 0;
 215                         move = delta;
 216                 }
 217                 cl.viewangles[PITCH] += move;
 218         }
 219         else if (delta < 0)
 220         {
 221                 if (move > -delta)
 222                 {
 223                         cl.pitchvel = 0;
 224                         move = -delta;
 225                 }
 226                 cl.viewangles[PITCH] -= move;
 227         }
 228 }
 229
 230
 231
 232
 233
 234 /*
 235 ==============================================================================
 236
 237                                                 SCREEN FLASHES
 238
 239 ==============================================================================
 240 */
 241
 242
 243 cshift_t        cshift_empty = { {130,80,50}, 0 };
 244 cshift_t        cshift_water = { {130,80,50}, 128 };
 245 cshift_t        cshift_slime = { {0,25,5}, 150 };
 246 cshift_t        cshift_lava = { {255,80,0}, 150 };
 247
 248 byte            ramps[3][256];
 249 float           v_blend[4];             // rgba 0.0 - 1.0
 250
 251 /*
 252 ===============
 253 V_ParseDamage
 254 ===============
 255 */
 256 void V_ParseDamage (void)
 257 {
 258         int             armor, blood;
 259         vec3_t  from;
 260         int             i;
 261         vec3_t  forward, right;
 262         entity_t        *ent;
 263         float   side;
 264         float   count;
 265
 266         armor = MSG_ReadByte ();
 267         blood = MSG_ReadByte ();
 268         for (i=0 ; i<3 ; i++)
 269                 from[i] = MSG_ReadCoord ();
 270
 271         count = blood*0.5 + armor*0.5;
 272         if (count < 10)
 273                 count = 10;
 274
 275         cl.faceanimtime = cl.time + 0.2;                // put sbar face into pain frame
 276
 277         if (gl_polyblend.value)
 278         {
 279                 cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
 280                 if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 281                         cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 282                 if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 283                         cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 284
 285                 if (armor > blood)
 286                 {
 287                         cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 288                         cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 289                         cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 290                 }
 291                 else if (armor)
 292                 {
 293                         cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 294                         cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 295                         cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 296                 }
 297                 else
 298                 {
 299                         cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 300                         cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 301                         cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 302                 }
 303         }
 304
 305 //
 306 // calculate view angle kicks
 307 //
 308         ent = &cl_entities[cl.viewentity];
 309
 310         VectorSubtract (from, ent->render.origin, from);
 311         VectorNormalize (from);
 312
 313         AngleVectors (ent->render.angles, forward, right, NULL);
 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         if (gl_polyblend.value)
 349         {
 350                 cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 351                 cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 352                 cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 353                 cl.cshifts[CSHIFT_BONUS].percent = 50;
 354         }
 355 }
 356
 357 /*
 358 =============
 359 V_SetContentsColor
 360
 361 Underwater, lava, etc each has a color shift
 362 =============
 363 */
 364 void V_SetContentsColor (int contents)
 365 {
 366         cshift_t* c;
 367         c = &cl.cshifts[CSHIFT_CONTENTS]; // just to shorten the code below
 368         if (!gl_polyblend.value)
 369         {
 370                 c->percent = 0;
 371                 return;
 372         }
 373         switch (contents)
 374         {
 375         case CONTENTS_EMPTY:
 376         case CONTENTS_SOLID:
 377                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_empty;
 378                 c->destcolor[0] = cshift_empty.destcolor[0];
 379                 c->destcolor[1] = cshift_empty.destcolor[1];
 380                 c->destcolor[2] = cshift_empty.destcolor[2];
 381                 c->percent = cshift_empty.percent;
 382                 break;
 383         case CONTENTS_LAVA:
 384                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_lava;
 385                 c->destcolor[0] = cshift_lava.destcolor[0];
 386                 c->destcolor[1] = cshift_lava.destcolor[1];
 387                 c->destcolor[2] = cshift_lava.destcolor[2];
 388                 c->percent = cshift_lava.percent;
 389                 break;
 390         case CONTENTS_SLIME:
 391                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_slime;
 392                 c->destcolor[0] = cshift_slime.destcolor[0];
 393                 c->destcolor[1] = cshift_slime.destcolor[1];
 394                 c->destcolor[2] = cshift_slime.destcolor[2];
 395                 c->percent = cshift_slime.percent;
 396                 break;
 397         default:
 398                 //cl.cshifts[CSHIFT_CONTENTS] = cshift_water;
 399                 c->destcolor[0] = cshift_water.destcolor[0];
 400                 c->destcolor[1] = cshift_water.destcolor[1];
 401                 c->destcolor[2] = cshift_water.destcolor[2];
 402                 c->percent = cshift_water.percent;
 403         }
 404 }
 405
 406 /*
 407 =============
 408 V_CalcPowerupCshift
 409 =============
 410 */
 411 void V_CalcPowerupCshift (void)
 412 {
 413         if (!gl_polyblend.value)
 414         {
 415                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 416                 return;
 417         }
 418         if (cl.items & IT_QUAD)
 419         {
 420                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 421                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 422                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 423                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 424         }
 425         else if (cl.items & IT_SUIT)
 426         {
 427                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 428                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 429                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 430                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 431         }
 432         else if (cl.items & IT_INVISIBILITY)
 433         {
 434                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 435                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 436                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 437                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 438         }
 439         else if (cl.items & IT_INVULNERABILITY)
 440         {
 441                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 442                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 443                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 444                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 445         }
 446         else
 447                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 448 }
 449
 450 /*
 451 =============
 452 V_CalcBlend
 453 =============
 454 */
 455 // LordHavoc: fixed V_CalcBlend
 456 void V_CalcBlend (void)
 457 {
 458         float   r, g, b, a, a2;
 459         int             j;
 460
 461         r = 0;
 462         g = 0;
 463         b = 0;
 464         a = 0;
 465
 466 //      if (gl_cshiftpercent.value)
 467 //      {
 468                 for (j=0 ; j<NUM_CSHIFTS ; j++)
 469                 {
 470 //                      a2 = ((cl.cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
 471                         a2 = cl.cshifts[j].percent * (1.0f / 255.0f);
 472
 473                         if (!a2)
 474                                 continue;
 475                         if (a2 > 1)
 476                                 a2 = 1;
 477                         r += (cl.cshifts[j].destcolor[0]-r) * a2;
 478                         g += (cl.cshifts[j].destcolor[1]-g) * a2;
 479                         b += (cl.cshifts[j].destcolor[2]-b) * a2;
 480                         a = 1 - (1 - a) * (1 - a2); // correct alpha multiply...  took a while to find it on the web
 481                 }
 482                 // saturate color (to avoid blending in black)
 483                 if (a)
 484                 {
 485                         a2 = 1 / a;
 486                         r *= a2;
 487                         g *= a2;
 488                         b *= a2;
 489                 }
 490 //      }
 491
 492         v_blend[0] = bound(0, r * (1.0/255.0), 1);
 493         v_blend[1] = bound(0, g * (1.0/255.0), 1);
 494         v_blend[2] = bound(0, b * (1.0/255.0), 1);
 495         v_blend[3] = bound(0, a              , 1);
 496 }
 497
 498 /*
 499 =============
 500 V_UpdateBlends
 501 =============
 502 */
 503 void V_UpdateBlends (void)
 504 {
 505         int             i, j;
 506         qboolean        new;
 507
 508         V_CalcPowerupCshift ();
 509
 510         new = false;
 511
 512         for (i=0 ; i<NUM_CSHIFTS ; i++)
 513         {
 514                 if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
 515                 {
 516                         new = true;
 517                         cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
 518                 }
 519                 for (j=0 ; j<3 ; j++)
 520                         if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
 521                         {
 522                                 new = true;
 523                                 cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
 524                         }
 525         }
 526
 527 // drop the damage value
 528         cl.cshifts[CSHIFT_DAMAGE].percent -= (cl.time - cl.oldtime)*150;
 529         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 530                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 531
 532 // drop the bonus value
 533         cl.cshifts[CSHIFT_BONUS].percent -= (cl.time - cl.oldtime)*100;
 534         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 535                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 536
 537         if (!new)
 538                 return;
 539
 540         V_CalcBlend ();
 541 }
 542
 543 /*
 544 ==============================================================================
 545
 546                                                 VIEW RENDERING
 547
 548 ==============================================================================
 549 */
 550
 551 float angledelta (float a)
 552 {
 553         a = ANGLEMOD(a);
 554         if (a > 180)
 555                 a -= 360;
 556         return a;
 557 }
 558
 559 /*
 560 ==================
 561 CalcGunAngle
 562 ==================
 563 */
 564 void CalcGunAngle (void)
 565 {
 566         /*
 567         float   yaw, pitch, move;
 568         static float oldyaw = 0;
 569         static float oldpitch = 0;
 570
 571         yaw = r_refdef.viewangles[YAW];
 572         pitch = -r_refdef.viewangles[PITCH];
 573
 574         yaw = angledelta(yaw - r_refdef.viewangles[YAW]) * 0.4;
 575         if (yaw > 10)
 576                 yaw = 10;
 577         if (yaw < -10)
 578                 yaw = -10;
 579         pitch = angledelta(-pitch - r_refdef.viewangles[PITCH]) * 0.4;
 580         if (pitch > 10)
 581                 pitch = 10;
 582         if (pitch < -10)
 583                 pitch = -10;
 584         move = cl.frametime*20;
 585         if (yaw > oldyaw)
 586         {
 587                 if (oldyaw + move < yaw)
 588                         yaw = oldyaw + move;
 589         }
 590         else
 591         {
 592                 if (oldyaw - move > yaw)
 593                         yaw = oldyaw - move;
 594         }
 595
 596         if (pitch > oldpitch)
 597         {
 598                 if (oldpitch + move < pitch)
 599                         pitch = oldpitch + move;
 600         }
 601         else
 602         {
 603                 if (oldpitch - move > pitch)
 604                         pitch = oldpitch - move;
 605         }
 606
 607         oldyaw = yaw;
 608         oldpitch = pitch;
 609
 610         cl.viewent.angles[YAW] = r_refdef.viewangles[YAW] + yaw;
 611         cl.viewent.angles[PITCH] = - (r_refdef.viewangles[PITCH] + pitch);
 612         */
 613         cl.viewent.render.angles[YAW] = r_refdef.viewangles[YAW];
 614         cl.viewent.render.angles[PITCH] = -r_refdef.viewangles[PITCH];
 615
 616         cl.viewent.render.angles[ROLL] -= v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
 617         cl.viewent.render.angles[PITCH] -= v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
 618         cl.viewent.render.angles[YAW] -= v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
 619 }
 620
 621 /*
 622 ==============
 623 V_BoundOffsets
 624 ==============
 625 */
 626 void V_BoundOffsets (void)
 627 {
 628         entity_t        *ent;
 629
 630         ent = &cl_entities[cl.viewentity];
 631
 632 // absolutely bound refresh relative to entity clipping hull
 633 // so the view can never be inside a solid wall
 634
 635         if (r_refdef.vieworg[0] < ent->render.origin[0] - 14)
 636                 r_refdef.vieworg[0] = ent->render.origin[0] - 14;
 637         else if (r_refdef.vieworg[0] > ent->render.origin[0] + 14)
 638                 r_refdef.vieworg[0] = ent->render.origin[0] + 14;
 639         if (r_refdef.vieworg[1] < ent->render.origin[1] - 14)
 640                 r_refdef.vieworg[1] = ent->render.origin[1] - 14;
 641         else if (r_refdef.vieworg[1] > ent->render.origin[1] + 14)
 642                 r_refdef.vieworg[1] = ent->render.origin[1] + 14;
 643         if (r_refdef.vieworg[2] < ent->render.origin[2] - 22)
 644                 r_refdef.vieworg[2] = ent->render.origin[2] - 22;
 645         else if (r_refdef.vieworg[2] > ent->render.origin[2] + 30)
 646                 r_refdef.vieworg[2] = ent->render.origin[2] + 30;
 647 }
 648
 649 /*
 650 ==============
 651 V_AddIdle
 652
 653 Idle swaying
 654 ==============
 655 */
 656 void V_AddIdle (void)
 657 {
 658         r_refdef.viewangles[ROLL] += v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
 659         r_refdef.viewangles[PITCH] += v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
 660         r_refdef.viewangles[YAW] += v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
 661 }
 662
 663
 664 /*
 665 ==============
 666 V_CalcViewRoll
 667
 668 Roll is induced by movement and damage
 669 ==============
 670 */
 671 void V_CalcViewRoll (void)
 672 {
 673         float           side;
 674
 675         side = V_CalcRoll (cl_entities[cl.viewentity].render.angles, cl.velocity);
 676         r_refdef.viewangles[ROLL] += side;
 677
 678         if (v_dmg_time > 0)
 679         {
 680                 r_refdef.viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 681                 r_refdef.viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 682                 v_dmg_time -= cl.frametime;
 683         }
 684
 685         if (cl.stats[STAT_HEALTH] <= 0)
 686         {
 687                 r_refdef.viewangles[ROLL] = 80; // dead view angle
 688                 return;
 689         }
 690
 691 }
 692
 693
 694 /*
 695 ==================
 696 V_CalcIntermissionRefdef
 697
 698 ==================
 699 */
 700 void V_CalcIntermissionRefdef (void)
 701 {
 702         entity_t        *ent, *view;
 703         float           old;
 704
 705 // ent is the player model (visible when out of body)
 706         ent = &cl_entities[cl.viewentity];
 707 // view is the weapon model (only visible from inside body)
 708         view = &cl.viewent;
 709
 710         VectorCopy (ent->render.origin, r_refdef.vieworg);
 711         VectorCopy (ent->render.angles, r_refdef.viewangles);
 712         view->render.model = NULL;
 713
 714 // always idle in intermission
 715         old = v_idlescale.value;
 716         v_idlescale.value = 1;
 717         V_AddIdle ();
 718         v_idlescale.value = old;
 719 }
 720
 721 extern void CL_LerpUpdate(entity_t *e, int frame, int modelindex);
 722
 723 /*
 724 ==================
 725 V_CalcRefdef
 726
 727 ==================
 728 */
 729 void V_CalcRefdef (void)
 730 {
 731         entity_t        *ent, *view;
 732         int                     i;
 733         vec3_t          forward;
 734         vec3_t          angles;
 735         float           bob;
 736 //      static float oldz = 0;
 737
 738         V_DriftPitch ();
 739
 740 // ent is the player model (visible when out of body)
 741         ent = &cl_entities[cl.viewentity];
 742 // view is the weapon model (only visible from inside body)
 743         view = &cl.viewent;
 744
 745
 746         if (chase_active.value)
 747         {
 748                 VectorCopy (ent->render.origin, r_refdef.vieworg);
 749                 VectorCopy (cl.viewangles, r_refdef.viewangles);
 750                 Chase_Update ();
 751                 V_AddIdle ();
 752         }
 753         else
 754         {
 755         // transform the view offset by the model's matrix to get the offset from model origin for the view
 756         //      if (!chase_active.value) // LordHavoc: get rid of angle problems in chase_active mode
 757         //      {
 758         //              ent->render.angles[YAW] = cl.viewangles[YAW];   // the model should face the view dir
 759         //              ent->render.angles[PITCH] = -cl.viewangles[PITCH];      // the model should face the view dir
 760         //      }
 761
 762                 bob = V_CalcBob ();
 763
 764         // refresh position
 765                 VectorCopy (ent->render.origin, r_refdef.vieworg);
 766                 r_refdef.vieworg[2] += cl.viewheight + bob;
 767
 768                 // LordHavoc: the protocol has changed...  so this is an obsolete approach
 769         // never let it sit exactly on a node line, because a water plane can
 770         // dissapear when viewed with the eye exactly on it.
 771         // the server protocol only specifies to 1/16 pixel, so add 1/32 in each axis
 772         //      r_refdef.vieworg[0] += 1.0/32;
 773         //      r_refdef.vieworg[1] += 1.0/32;
 774         //      r_refdef.vieworg[2] += 1.0/32;
 775
 776                 if (!intimerefresh)
 777                         VectorCopy (cl.viewangles, r_refdef.viewangles);
 778                 V_CalcViewRoll ();
 779                 V_AddIdle ();
 780
 781         // offsets
 782                 angles[PITCH] = -ent->render.angles[PITCH];     // because entity pitches are actually backward
 783                 angles[YAW] = ent->render.angles[YAW];
 784                 angles[ROLL] = ent->render.angles[ROLL];
 785
 786                 AngleVectors (angles, forward, NULL, NULL);
 787
 788                 V_BoundOffsets ();
 789
 790         // set up gun position
 791                 VectorCopy (ent->render.origin, view->render.origin);
 792                 view->render.origin[2] += cl.viewheight;
 793                 VectorCopy (cl.viewangles, view->render.angles);
 794
 795                 CalcGunAngle ();
 796
 797                 for (i=0 ; i<3 ; i++)
 798                 {
 799                         view->render.origin[i] += forward[i]*bob*0.4;
 800         //              view->render.origin[i] += right[i]*bob*0.4;
 801         //              view->render.origin[i] += up[i]*bob*0.8;
 802                 }
 803                 view->render.origin[2] += bob;
 804
 805                 // FIXME: this setup code is somewhat evil (CL_LerpUpdate should be private)
 806                 CL_LerpUpdate(view, cl.stats[STAT_WEAPONFRAME], cl.stats[STAT_WEAPON]);
 807
 808                 view->render.model = cl.model_precache[cl.stats[STAT_WEAPON]];
 809                 view->render.frame = cl.stats[STAT_WEAPONFRAME];
 810                 view->render.colormap = -1; // no special coloring
 811                 view->render.alpha = ent->render.alpha; // LordHavoc: if the player is transparent, so is the gun
 812                 view->render.effects = ent->render.effects;
 813                 view->render.scale = 1;
 814                 VectorCopy(ent->render.colormod, view->render.colormod);
 815
 816         // set up the refresh position
 817
 818                 // LordHavoc: this never looked all that good to begin with...
 819                 /*
 820         // smooth out stair step ups
 821         if (cl.onground && ent->render.origin[2] - oldz > 0)
 822         {
 823                 float steptime;
 824
 825                 steptime = cl.time - cl.oldtime;
 826                 if (steptime < 0)
 827         //FIXME         I_Error ("steptime < 0");
 828                         steptime = 0;
 829
 830                 oldz += steptime * 80;
 831                 if (oldz > ent->render.origin[2])
 832                         oldz = ent->render.origin[2];
 833                 if (ent->render.origin[2] - oldz > 12)
 834                         oldz = ent->render.origin[2] - 12;
 835                 r_refdef.vieworg[2] += oldz - ent->render.origin[2];
 836                 view->render.origin[2] += oldz - ent->render.origin[2];
 837         }
 838         else
 839                 oldz = ent->render.origin[2];
 840                 */
 841
 842         // LordHavoc: origin view kick added
 843                 if (!intimerefresh && v_punch.value)
 844                 {
 845                         VectorAdd(r_refdef.viewangles, cl.punchangle, r_refdef.viewangles);
 846                         VectorAdd(r_refdef.vieworg, cl.punchvector, r_refdef.vieworg);
 847                 }
 848         }
 849 }
 850
 851 /*
 852 ==================
 853 V_RenderView
 854
 855 The player's clipping box goes from (-16 -16 -24) to (16 16 32) from
 856 the entity origin, so any view position inside that will be valid
 857 ==================
 858 */
 859 void V_RenderView (void)
 860 {
 861         if (con_forcedup)
 862                 return;
 863
 864         if (cl.intermission)
 865                 V_CalcIntermissionRefdef ();
 866         else
 867                 V_CalcRefdef ();
 868
 869         R_RenderView ();
 870 }
 871
 872 //============================================================================
 873
 874 /*
 875 =============
 876 V_Init
 877 =============
 878 */
 879 void V_Init (void)
 880 {
 881         Cmd_AddCommand ("v_cshift", V_cshift_f);
 882         Cmd_AddCommand ("bf", V_BonusFlash_f);
 883         Cmd_AddCommand ("centerview", V_StartPitchDrift);
 884
 885         Cvar_RegisterVariable (&v_centermove);
 886         Cvar_RegisterVariable (&v_centerspeed);
 887
 888         Cvar_RegisterVariable (&v_iyaw_cycle);
 889         Cvar_RegisterVariable (&v_iroll_cycle);
 890         Cvar_RegisterVariable (&v_ipitch_cycle);
 891         Cvar_RegisterVariable (&v_iyaw_level);
 892         Cvar_RegisterVariable (&v_iroll_level);
 893         Cvar_RegisterVariable (&v_ipitch_level);
 894
 895         Cvar_RegisterVariable (&v_idlescale);
 896         Cvar_RegisterVariable (&crosshair);
 897 //      Cvar_RegisterVariable (&gl_cshiftpercent);
 898         Cvar_RegisterVariable (&gl_polyblend);
 899
 900         Cvar_RegisterVariable (&cl_rollspeed);
 901         Cvar_RegisterVariable (&cl_rollangle);
 902         Cvar_RegisterVariable (&cl_bob);
 903         Cvar_RegisterVariable (&cl_bobcycle);
 904         Cvar_RegisterVariable (&cl_bobup);
 905
 906         Cvar_RegisterVariable (&v_kicktime);
 907         Cvar_RegisterVariable (&v_kickroll);
 908         Cvar_RegisterVariable (&v_kickpitch);
 909
 910         Cvar_RegisterVariable (&v_punch);
 911 }
 912
 913