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 #include "cl_collision.h"
  24
  25 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin);
  26
  27 /*
  28
  29 The view is allowed to move slightly from it's true position for bobbing,
  30 but if it exceeds 8 pixels linear distance (spherical, not box), the list of
  31 entities sent from the server may not include everything in the pvs, especially
  32 when crossing a water boudnary.
  33
  34 */
  35
  36 cvar_t cl_rollspeed = {0, "cl_rollspeed", "200", "how much strafing is necessary to tilt the view"};
  37 cvar_t cl_rollangle = {0, "cl_rollangle", "2.0", "how much to tilt the view when strafing"};
  38
  39 cvar_t cl_bob = {CVAR_SAVE, "cl_bob","0.02", "view bobbing amount"};
  40 cvar_t cl_bobcycle = {CVAR_SAVE, "cl_bobcycle","0.6", "view bobbing speed"};
  41 cvar_t cl_bobup = {CVAR_SAVE, "cl_bobup","0.5", "view bobbing adjustment that makes the up or down swing of the bob last longer"};
  42
  43 cvar_t cl_bobmodel = {CVAR_SAVE, "cl_bobmodel", "1", "enables gun bobbing"};
  44 cvar_t cl_bobmodel_side = {CVAR_SAVE, "cl_bobmodel_side", "0.15", "gun bobbing sideways sway amount"};
  45 cvar_t cl_bobmodel_up = {CVAR_SAVE, "cl_bobmodel_up", "0.06", "gun bobbing upward movement amount"};
  46 cvar_t cl_bobmodel_speed = {CVAR_SAVE, "cl_bobmodel_speed", "7", "gun bobbing speed"};
  47
  48 cvar_t cl_viewmodel_scale = {0, "cl_viewmodel_scale", "1", "changes size of gun model, lower values prevent poking into walls but cause strange artifacts on lighting and especially r_stereo/vid_stereobuffer options where the size of the gun becomes visible"};
  49
  50 cvar_t v_kicktime = {0, "v_kicktime", "0.5", "how long a view kick from damage lasts"};
  51 cvar_t v_kickroll = {0, "v_kickroll", "0.6", "how much a view kick from damage rolls your view"};
  52 cvar_t v_kickpitch = {0, "v_kickpitch", "0.6", "how much a view kick from damage pitches your view"};
  53
  54 cvar_t v_iyaw_cycle = {0, "v_iyaw_cycle", "2", "v_idlescale yaw speed"};
  55 cvar_t v_iroll_cycle = {0, "v_iroll_cycle", "0.5", "v_idlescale roll speed"};
  56 cvar_t v_ipitch_cycle = {0, "v_ipitch_cycle", "1", "v_idlescale pitch speed"};
  57 cvar_t v_iyaw_level = {0, "v_iyaw_level", "0.3", "v_idlescale yaw amount"};
  58 cvar_t v_iroll_level = {0, "v_iroll_level", "0.1", "v_idlescale roll amount"};
  59 cvar_t v_ipitch_level = {0, "v_ipitch_level", "0.3", "v_idlescale pitch amount"};
  60
  61 cvar_t v_idlescale = {0, "v_idlescale", "0", "how much of the quake 'drunken view' effect to use"};
  62
  63 cvar_t crosshair = {CVAR_SAVE, "crosshair", "0", "selects crosshair to use (0 is none)"};
  64
  65 cvar_t v_centermove = {0, "v_centermove", "0.15", "how long before the view begins to center itself (if freelook/+mlook/+jlook/+klook are off)"};
  66 cvar_t v_centerspeed = {0, "v_centerspeed","500", "how fast the view centers itself"};
  67
  68 cvar_t cl_stairsmoothspeed = {CVAR_SAVE, "cl_stairsmoothspeed", "160", "how fast your view moves upward/downward when running up/down stairs"};
  69
  70 cvar_t chase_back = {CVAR_SAVE, "chase_back", "48", "chase cam distance from the player"};
  71 cvar_t chase_up = {CVAR_SAVE, "chase_up", "24", "chase cam distance from the player"};
  72 cvar_t chase_active = {CVAR_SAVE, "chase_active", "0", "enables chase cam"};
  73 cvar_t chase_overhead = {CVAR_SAVE, "chase_overhead", "0", "chase cam looks straight down if this is not zero"};
  74 // GAME_GOODVSBAD2
  75 cvar_t chase_stevie = {0, "chase_stevie", "0", "chase cam view from above (used only by GoodVsBad2)"};
  76
  77 cvar_t v_deathtilt = {0, "v_deathtilt", "1", "whether to use sideways view when dead"};
  78 cvar_t v_deathtiltangle = {0, "v_deathtiltangle", "80", "what roll angle to use when tilting the view while dead"};
  79
  80 // Prophecy camera pitchangle by Alexander "motorsep" Zubov
  81 cvar_t chase_pitchangle = {CVAR_SAVE, "chase_pitchangle", "55", "chase cam pitch angle"};
  82
  83 float   v_dmg_time, v_dmg_roll, v_dmg_pitch;
  84
  85
  86 /*
  87 ===============
  88 V_CalcRoll
  89
  90 Used by view and sv_user
  91 ===============
  92 */
  93 float V_CalcRoll (vec3_t angles, vec3_t velocity)
  94 {
  95         vec3_t  right;
  96         float   sign;
  97         float   side;
  98         float   value;
  99
 100         AngleVectors (angles, NULL, right, NULL);
 101         side = DotProduct (velocity, right);
 102         sign = side < 0 ? -1 : 1;
 103         side = fabs(side);
 104
 105         value = cl_rollangle.value;
 106
 107         if (side < cl_rollspeed.value)
 108                 side = side * value / cl_rollspeed.value;
 109         else
 110                 side = value;
 111
 112         return side*sign;
 113
 114 }
 115
 116 void V_StartPitchDrift (void)
 117 {
 118         if (cl.laststop == cl.time)
 119                 return;         // something else is keeping it from drifting
 120
 121         if (cl.nodrift || !cl.pitchvel)
 122         {
 123                 cl.pitchvel = v_centerspeed.value;
 124                 cl.nodrift = false;
 125                 cl.driftmove = 0;
 126         }
 127 }
 128
 129 void V_StopPitchDrift (void)
 130 {
 131         cl.laststop = cl.time;
 132         cl.nodrift = true;
 133         cl.pitchvel = 0;
 134 }
 135
 136 /*
 137 ===============
 138 V_DriftPitch
 139
 140 Moves the client pitch angle towards cl.idealpitch sent by the server.
 141
 142 If the user is adjusting pitch manually, either with lookup/lookdown,
 143 mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
 144
 145 Drifting is enabled when the center view key is hit, mlook is released and
 146 lookspring is non 0, or when
 147 ===============
 148 */
 149 void V_DriftPitch (void)
 150 {
 151         float           delta, move;
 152
 153         if (noclip_anglehack || !cl.onground || cls.demoplayback )
 154         {
 155                 cl.driftmove = 0;
 156                 cl.pitchvel = 0;
 157                 return;
 158         }
 159
 160 // don't count small mouse motion
 161         if (cl.nodrift)
 162         {
 163                 if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
 164                         cl.driftmove = 0;
 165                 else
 166                         cl.driftmove += cl.realframetime;
 167
 168                 if ( cl.driftmove > v_centermove.value)
 169                 {
 170                         V_StartPitchDrift ();
 171                 }
 172                 return;
 173         }
 174
 175         delta = cl.idealpitch - cl.viewangles[PITCH];
 176
 177         if (!delta)
 178         {
 179                 cl.pitchvel = 0;
 180                 return;
 181         }
 182
 183         move = cl.realframetime * cl.pitchvel;
 184         cl.pitchvel += cl.realframetime * v_centerspeed.value;
 185
 186         if (delta > 0)
 187         {
 188                 if (move > delta)
 189                 {
 190                         cl.pitchvel = 0;
 191                         move = delta;
 192                 }
 193                 cl.viewangles[PITCH] += move;
 194         }
 195         else if (delta < 0)
 196         {
 197                 if (move > -delta)
 198                 {
 199                         cl.pitchvel = 0;
 200                         move = -delta;
 201                 }
 202                 cl.viewangles[PITCH] -= move;
 203         }
 204 }
 205
 206
 207 /*
 208 ==============================================================================
 209
 210                                                 SCREEN FLASHES
 211
 212 ==============================================================================
 213 */
 214
 215
 216 /*
 217 ===============
 218 V_ParseDamage
 219 ===============
 220 */
 221 void V_ParseDamage (void)
 222 {
 223         int armor, blood;
 224         vec3_t from;
 225         //vec3_t forward, right;
 226         vec3_t localfrom;
 227         entity_t *ent;
 228         //float side;
 229         float count;
 230
 231         armor = MSG_ReadByte ();
 232         blood = MSG_ReadByte ();
 233         MSG_ReadVector(from, cls.protocol);
 234
 235         // Send the Dmg Globals to CSQC
 236         CL_VM_UpdateDmgGlobals(blood, armor, from);
 237
 238         count = blood*0.5 + armor*0.5;
 239         if (count < 10)
 240                 count = 10;
 241
 242         cl.faceanimtime = cl.time + 0.2;                // put sbar face into pain frame
 243
 244         cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
 245         if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 246                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 247         if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 248                 cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 249
 250         if (armor > blood)
 251         {
 252                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 253                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 254                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 255         }
 256         else if (armor)
 257         {
 258                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 259                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 260                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 261         }
 262         else
 263         {
 264                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 265                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 266                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 267         }
 268
 269         // calculate view angle kicks
 270         if (cl.entities[cl.viewentity].state_current.active)
 271         {
 272                 ent = &cl.entities[cl.viewentity];
 273                 Matrix4x4_Transform(&ent->render.inversematrix, from, localfrom);
 274                 VectorNormalize(localfrom);
 275                 v_dmg_pitch = count * localfrom[0] * v_kickpitch.value;
 276                 v_dmg_roll = count * localfrom[1] * v_kickroll.value;
 277                 v_dmg_time = v_kicktime.value;
 278         }
 279 }
 280
 281 static cshift_t v_cshift;
 282
 283 /*
 284 ==================
 285 V_cshift_f
 286 ==================
 287 */
 288 static void V_cshift_f (void)
 289 {
 290         v_cshift.destcolor[0] = atof(Cmd_Argv(1));
 291         v_cshift.destcolor[1] = atof(Cmd_Argv(2));
 292         v_cshift.destcolor[2] = atof(Cmd_Argv(3));
 293         v_cshift.percent = atof(Cmd_Argv(4));
 294 }
 295
 296
 297 /*
 298 ==================
 299 V_BonusFlash_f
 300
 301 When you run over an item, the server sends this command
 302 ==================
 303 */
 304 static void V_BonusFlash_f (void)
 305 {
 306         cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 307         cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 308         cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 309         cl.cshifts[CSHIFT_BONUS].percent = 50;
 310 }
 311
 312 /*
 313 ==============================================================================
 314
 315                                                 VIEW RENDERING
 316
 317 ==============================================================================
 318 */
 319
 320 extern matrix4x4_t viewmodelmatrix;
 321
 322 #include "cl_collision.h"
 323 #include "csprogs.h"
 324
 325 /*
 326 ==================
 327 V_CalcRefdef
 328
 329 ==================
 330 */
 331 #if 0
 332 static vec3_t eyeboxmins = {-16, -16, -24};
 333 static vec3_t eyeboxmaxs = { 16,  16,  32};
 334 #endif
 335 void V_CalcRefdef (void)
 336 {
 337         entity_t *ent;
 338         float vieworg[3], gunorg[3], viewangles[3], smoothtime;
 339 // begin of chase camera bounding box size for proper collisions by Alexander Zubov
 340         vec3_t camboxmins = {0, 0, 0};
 341         vec3_t camboxmaxs = {0, 0, 0};
 342 // end of chase camera bounding box size for proper collisions by Alexander Zubov
 343         trace_t trace;
 344         VectorClear(gunorg);
 345         viewmodelmatrix = identitymatrix;
 346         r_refdef.view.matrix = identitymatrix;
 347         if (cls.state == ca_connected && cls.signon == SIGNONS)
 348         {
 349                 // ent is the view entity (visible when out of body)
 350                 ent = &cl.entities[cl.viewentity];
 351                 // player can look around, so take the origin from the entity,
 352                 // and the angles from the input system
 353                 Matrix4x4_OriginFromMatrix(&ent->render.matrix, vieworg);
 354                 VectorCopy(cl.viewangles, viewangles);
 355
 356                 // calculate how much time has passed since the last V_CalcRefdef
 357                 smoothtime = bound(0, cl.time - cl.stairsmoothtime, 0.1);
 358                 cl.stairsmoothtime = cl.time;
 359
 360                 // fade damage flash
 361                 if (v_dmg_time > 0)
 362                         v_dmg_time -= bound(0, smoothtime, 0.1);
 363
 364                 if (cl.intermission)
 365                 {
 366                         // entity is a fixed camera, just copy the matrix
 367                         if (cls.protocol == PROTOCOL_QUAKEWORLD)
 368                                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, cl.qw_intermission_origin[0], cl.qw_intermission_origin[1], cl.qw_intermission_origin[2], cl.qw_intermission_angles[0], cl.qw_intermission_angles[1], cl.qw_intermission_angles[2], 1);
 369                         else
 370                         {
 371                                 r_refdef.view.matrix = ent->render.matrix;
 372                                 Matrix4x4_AdjustOrigin(&r_refdef.view.matrix, 0, 0, cl.stats[STAT_VIEWHEIGHT]);
 373                         }
 374                         viewmodelmatrix = r_refdef.view.matrix;
 375                 }
 376                 else
 377                 {
 378                         // smooth stair stepping, but only if onground and enabled
 379                         if (!cl.onground || cl_stairsmoothspeed.value <= 0)
 380                                 cl.stairsmoothz = vieworg[2];
 381                         else
 382                         {
 383                                 if (cl.stairsmoothz < vieworg[2])
 384                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2] - 16, cl.stairsmoothz + smoothtime * cl_stairsmoothspeed.value, vieworg[2]);
 385                                 else if (cl.stairsmoothz > vieworg[2])
 386                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2], cl.stairsmoothz - smoothtime * cl_stairsmoothspeed.value, vieworg[2] + 16);
 387                         }
 388
 389                         // apply qw weapon recoil effect (this did not work in QW)
 390                         // TODO: add a cvar to disable this
 391                         viewangles[PITCH] += cl.qw_weaponkick;
 392
 393                         if (chase_active.value)
 394                         {
 395                                 // observing entity from third person. Added "campitch" by Alexander "motorsep" Zubov
 396                                 vec_t camback, camup, dist, campitch, forward[3], chase_dest[3];
 397
 398                                 camback = chase_back.value;
 399                                 camup = chase_up.value;
 400                                 campitch = chase_pitchangle.value;
 401
 402                                 // this + 22 is to match view_ofs for compatibility with older versions
 403                                 camup += 22;
 404
 405                                 AngleVectors(viewangles, forward, NULL, NULL);
 406
 407                                 if (chase_overhead.integer)
 408                                 {
 409 #if 1
 410                                         vec3_t offset;
 411                                         vec3_t bestvieworg;
 412 #endif
 413                                         vec3_t up;
 414                                         viewangles[PITCH] = 0;
 415                                         AngleVectors(viewangles, forward, NULL, up);
 416                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 417                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup;
 418                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup;
 419                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup;
 420 #if 0
 421                                         //trace = CL_Move(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 422                                         trace = CL_Move(vieworg, vec3_origin, vec3_origin, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 423                                         VectorCopy(trace.endpos, vieworg);
 424                                         vieworg[2] -= 8;
 425 #else
 426                                         trace = CL_Move(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 427                                         VectorCopy(trace.endpos, bestvieworg);
 428                                         offset[2] = 0;
 429                                         for (offset[0] = -16;offset[0] <= 16;offset[0] += 8)
 430                                         {
 431                                                 for (offset[1] = -16;offset[1] <= 16;offset[1] += 8)
 432                                                 {
 433                                                         AngleVectors(viewangles, NULL, NULL, up);
 434                                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup + offset[0];
 435                                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup + offset[1];
 436                                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup + offset[2];
 437                                                         trace = CL_Move(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 438                                                         if (bestvieworg[2] > trace.endpos[2])
 439                                                                 bestvieworg[2] = trace.endpos[2];
 440                                                 }
 441                                         }
 442                                         bestvieworg[2] -= 8;
 443                                         VectorCopy(bestvieworg, vieworg);
 444 #endif
 445                                         viewangles[PITCH] = campitch;
 446                                 }
 447                                 else
 448                                 {
 449                                         if (gamemode == GAME_GOODVSBAD2 && chase_stevie.integer)
 450                                         {
 451                                                 // look straight down from high above
 452                                                 viewangles[PITCH] = 90;
 453                                                 camback = 2048;
 454                                                 VectorSet(forward, 0, 0, -1);
 455                                         }
 456
 457                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 458                                         dist = -camback - 8;
 459                                         chase_dest[0] = vieworg[0] + forward[0] * dist;
 460                                         chase_dest[1] = vieworg[1] + forward[1] * dist;
 461                                         chase_dest[2] = vieworg[2] + forward[2] * dist + camup;
 462                                         trace = CL_Move(vieworg, vec3_origin, vec3_origin, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 463                                         VectorMAMAM(1, trace.endpos, 8, forward, 4, trace.plane.normal, vieworg);
 464                                 }
 465                         }
 466                         else
 467                         {
 468                                 // first person view from entity
 469                                 // angles
 470                                 if (cl.stats[STAT_HEALTH] <= 0 && v_deathtilt.integer)
 471                                         viewangles[ROLL] = v_deathtiltangle.value;
 472                                 VectorAdd(viewangles, cl.punchangle, viewangles);
 473                                 viewangles[ROLL] += V_CalcRoll(cl.viewangles, cl.movement_velocity);
 474                                 if (v_dmg_time > 0)
 475                                 {
 476                                         viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 477                                         viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 478                                 }
 479                                 // origin
 480                                 VectorAdd(vieworg, cl.punchvector, vieworg);
 481                                 vieworg[2] += cl.stats[STAT_VIEWHEIGHT];
 482                                 if (cl.stats[STAT_HEALTH] > 0)
 483                                 {
 484                                         double xyspeed, bob;
 485
 486                                         xyspeed = sqrt(cl.movement_velocity[0]*cl.movement_velocity[0] + cl.movement_velocity[1]*cl.movement_velocity[1]);
 487                                         if (cl_bob.value && cl_bobcycle.value)
 488                                         {
 489                                                 float cycle;
 490                                                 // LordHavoc: this code is *weird*, but not replacable (I think it
 491                                                 // should be done in QC on the server, but oh well, quake is quake)
 492                                                 // LordHavoc: figured out bobup: the time at which the sin is at 180
 493                                                 // degrees (which allows lengthening or squishing the peak or valley)
 494                                                 cycle = cl.time / cl_bobcycle.value;
 495                                                 cycle -= (int) cycle;
 496                                                 if (cycle < cl_bobup.value)
 497                                                         cycle = sin(M_PI * cycle / cl_bobup.value);
 498                                                 else
 499                                                         cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
 500                                                 // bob is proportional to velocity in the xy plane
 501                                                 // (don't count Z, or jumping messes it up)
 502                                                 bob = xyspeed * cl_bob.value;
 503                                                 bob = bob*0.3 + bob*0.7*cycle;
 504                                                 vieworg[2] += bound(-7, bob, 4);
 505                                         }
 506
 507                                         VectorCopy(vieworg, gunorg);
 508
 509                                         if (cl_bob.value && cl_bobmodel.value)
 510                                         {
 511                                                 // calculate for swinging gun model
 512                                                 // the gun bobs when running on the ground, but doesn't bob when you're in the air.
 513                                                 // Sajt: I tried to smooth out the transitions between bob and no bob, which works
 514                                                 // for the most part, but for some reason when you go through a message trigger or
 515                                                 // pick up an item or anything like that it will momentarily jolt the gun.
 516                                                 vec3_t forward, right, up;
 517                                                 float bspeed;
 518                                                 float s;
 519                                                 float t;
 520
 521                                                 s = cl.time * cl_bobmodel_speed.value;
 522                                                 if (cl.onground)
 523                                                 {
 524                                                         if (cl.time - cl.hitgroundtime < 0.2)
 525                                                         {
 526                                                                 // just hit the ground, speed the bob back up over the next 0.2 seconds
 527                                                                 t = cl.time - cl.hitgroundtime;
 528                                                                 t = bound(0, t, 0.2);
 529                                                                 t *= 5;
 530                                                         }
 531                                                         else
 532                                                                 t = 1;
 533                                                 }
 534                                                 else
 535                                                 {
 536                                                         // recently left the ground, slow the bob down over the next 0.2 seconds
 537                                                         t = cl.time - cl.lastongroundtime;
 538                                                         t = 0.2 - bound(0, t, 0.2);
 539                                                         t *= 5;
 540                                                 }
 541
 542                                                 bspeed = bound (0, xyspeed, 400) * 0.01f;
 543                                                 AngleVectors (viewangles, forward, right, up);
 544                                                 bob = bspeed * cl_bobmodel_side.value * cl_viewmodel_scale.value * sin (s) * t;
 545                                                 VectorMA (gunorg, bob, right, gunorg);
 546                                                 bob = bspeed * cl_bobmodel_up.value * cl_viewmodel_scale.value * cos (s * 2) * t;
 547                                                 VectorMA (gunorg, bob, up, gunorg);
 548                                         }
 549                                 }
 550                         }
 551                         // calculate a view matrix for rendering the scene
 552                         if (v_idlescale.value)
 553                                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0] + v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value, viewangles[1] + v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value, viewangles[2] + v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value, 1);
 554                         else
 555                                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0], viewangles[1], viewangles[2] + v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value, 1);
 556                         // calculate a viewmodel matrix for use in view-attached entities
 557                         Matrix4x4_CreateFromQuakeEntity(&viewmodelmatrix, gunorg[0], gunorg[1], gunorg[2], viewangles[0], viewangles[1], viewangles[2], cl_viewmodel_scale.value);
 558                         VectorCopy(vieworg, cl.csqc_origin);
 559                         VectorCopy(viewangles, cl.csqc_angles);
 560                 }
 561         }
 562 }
 563
 564 void V_FadeViewFlashs(void)
 565 {
 566         // don't flash if time steps backwards
 567         if (cl.time <= cl.oldtime)
 568                 return;
 569         // drop the damage value
 570         cl.cshifts[CSHIFT_DAMAGE].percent -= (cl.time - cl.oldtime)*150;
 571         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 572                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 573         // drop the bonus value
 574         cl.cshifts[CSHIFT_BONUS].percent -= (cl.time - cl.oldtime)*100;
 575         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 576                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 577 }
 578
 579 void V_CalcViewBlend(void)
 580 {
 581         float a2;
 582         int j;
 583         r_refdef.viewblend[0] = 0;
 584         r_refdef.viewblend[1] = 0;
 585         r_refdef.viewblend[2] = 0;
 586         r_refdef.viewblend[3] = 0;
 587         r_refdef.frustumscale_x = 1;
 588         r_refdef.frustumscale_y = 1;
 589         if (cls.state == ca_connected && cls.signon == SIGNONS)
 590         {
 591                 // set contents color
 592                 int supercontents;
 593                 vec3_t vieworigin;
 594                 Matrix4x4_OriginFromMatrix(&r_refdef.view.matrix, vieworigin);
 595                 supercontents = CL_PointSuperContents(vieworigin);
 596                 if (supercontents & SUPERCONTENTS_LIQUIDSMASK)
 597                 {
 598                         r_refdef.frustumscale_x *= 1 - (((sin(cl.time * 4.7) + 1) * 0.015) * r_waterwarp.value);
 599                         r_refdef.frustumscale_y *= 1 - (((sin(cl.time * 3.0) + 1) * 0.015) * r_waterwarp.value);
 600                         if (supercontents & SUPERCONTENTS_LAVA)
 601                         {
 602                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 255;
 603                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 604                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 605                         }
 606                         else if (supercontents & SUPERCONTENTS_SLIME)
 607                         {
 608                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 609                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 25;
 610                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 5;
 611                         }
 612                         else
 613                         {
 614                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 130;
 615                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 616                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 50;
 617                         }
 618                         cl.cshifts[CSHIFT_CONTENTS].percent = 150 * 0.5;
 619                 }
 620                 else
 621                 {
 622                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 623                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 0;
 624                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 625                         cl.cshifts[CSHIFT_CONTENTS].percent = 0;
 626                 }
 627
 628                 if (gamemode != GAME_TRANSFUSION)
 629                 {
 630                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
 631                         {
 632                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 633                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 634                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 635                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 636                         }
 637                         else if (cl.stats[STAT_ITEMS] & IT_SUIT)
 638                         {
 639                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 640                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 641                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 642                                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 643                         }
 644                         else if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
 645                         {
 646                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 647                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 648                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 649                                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 650                         }
 651                         else if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
 652                         {
 653                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 654                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 655                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 656                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 657                         }
 658                         else
 659                                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 660                 }
 661
 662                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[0] = v_cshift.destcolor[0];
 663                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[1] = v_cshift.destcolor[1];
 664                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[2] = v_cshift.destcolor[2];
 665                 cl.cshifts[CSHIFT_VCSHIFT].percent = v_cshift.percent;
 666
 667                 // LordHavoc: fixed V_CalcBlend
 668                 for (j = 0;j < NUM_CSHIFTS;j++)
 669                 {
 670                         a2 = bound(0.0f, cl.cshifts[j].percent * (1.0f / 255.0f), 1.0f);
 671                         if (a2 > 0)
 672                         {
 673                                 VectorLerp(r_refdef.viewblend, a2, cl.cshifts[j].destcolor, r_refdef.viewblend);
 674                                 r_refdef.viewblend[3] = (1 - (1 - r_refdef.viewblend[3]) * (1 - a2)); // correct alpha multiply...  took a while to find it on the web
 675                         }
 676                 }
 677                 // saturate color (to avoid blending in black)
 678                 if (r_refdef.viewblend[3])
 679                 {
 680                         a2 = 1 / r_refdef.viewblend[3];
 681                         VectorScale(r_refdef.viewblend, a2, r_refdef.viewblend);
 682                 }
 683
 684                 r_refdef.viewblend[0] = bound(0.0f, r_refdef.viewblend[0] * (1.0f/255.0f), 1.0f);
 685                 r_refdef.viewblend[1] = bound(0.0f, r_refdef.viewblend[1] * (1.0f/255.0f), 1.0f);
 686                 r_refdef.viewblend[2] = bound(0.0f, r_refdef.viewblend[2] * (1.0f/255.0f), 1.0f);
 687                 r_refdef.viewblend[3] = bound(0.0f, r_refdef.viewblend[3] * gl_polyblend.value, 1.0f);
 688         }
 689 }
 690
 691 //============================================================================
 692
 693 /*
 694 =============
 695 V_Init
 696 =============
 697 */
 698 void V_Init (void)
 699 {
 700         Cmd_AddCommand ("v_cshift", V_cshift_f, "sets tint color of view");
 701         Cmd_AddCommand ("bf", V_BonusFlash_f, "briefly flashes a bright color tint on view (used when items are picked up)");
 702         Cmd_AddCommand ("centerview", V_StartPitchDrift, "gradually recenter view (stop looking up/down)");
 703
 704         Cvar_RegisterVariable (&v_centermove);
 705         Cvar_RegisterVariable (&v_centerspeed);
 706
 707         Cvar_RegisterVariable (&v_iyaw_cycle);
 708         Cvar_RegisterVariable (&v_iroll_cycle);
 709         Cvar_RegisterVariable (&v_ipitch_cycle);
 710         Cvar_RegisterVariable (&v_iyaw_level);
 711         Cvar_RegisterVariable (&v_iroll_level);
 712         Cvar_RegisterVariable (&v_ipitch_level);
 713
 714         Cvar_RegisterVariable (&v_idlescale);
 715         Cvar_RegisterVariable (&crosshair);
 716
 717         Cvar_RegisterVariable (&cl_rollspeed);
 718         Cvar_RegisterVariable (&cl_rollangle);
 719         Cvar_RegisterVariable (&cl_bob);
 720         Cvar_RegisterVariable (&cl_bobcycle);
 721         Cvar_RegisterVariable (&cl_bobup);
 722         Cvar_RegisterVariable (&cl_bobmodel);
 723         Cvar_RegisterVariable (&cl_bobmodel_side);
 724         Cvar_RegisterVariable (&cl_bobmodel_up);
 725         Cvar_RegisterVariable (&cl_bobmodel_speed);
 726
 727         Cvar_RegisterVariable (&cl_viewmodel_scale);
 728
 729         Cvar_RegisterVariable (&v_kicktime);
 730         Cvar_RegisterVariable (&v_kickroll);
 731         Cvar_RegisterVariable (&v_kickpitch);
 732
 733         Cvar_RegisterVariable (&cl_stairsmoothspeed);
 734
 735         Cvar_RegisterVariable (&chase_back);
 736         Cvar_RegisterVariable (&chase_up);
 737         Cvar_RegisterVariable (&chase_active);
 738         Cvar_RegisterVariable (&chase_overhead);
 739         Cvar_RegisterVariable (&chase_pitchangle);
 740         if (gamemode == GAME_GOODVSBAD2)
 741                 Cvar_RegisterVariable (&chase_stevie);
 742
 743         Cvar_RegisterVariable (&v_deathtilt);
 744         Cvar_RegisterVariable (&v_deathtiltangle);
 745 }
 746