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_leanmodel_side = {CVAR_SAVE, "cl_leanmodel_side", "1", "enables gun leaning sideways"};
  49 cvar_t cl_leanmodel_side_speed = {CVAR_SAVE, "cl_leanmodel_side_speed", "2.5", "gun leaning sideways speed"};
  50 cvar_t cl_leanmodel_side_limit = {CVAR_SAVE, "cl_leanmodel_side_limit", "7.5", "gun leaning sideways limit"};
  51 cvar_t cl_leanmodel_up = {CVAR_SAVE, "cl_leanmodel_up", "1", "enables gun leaning upward"};
  52 cvar_t cl_leanmodel_up_speed = {CVAR_SAVE, "cl_leanmodel_up_speed", "2", "gun leaning upward speed"};
  53 cvar_t cl_leanmodel_up_limit = {CVAR_SAVE, "cl_leanmodel_up_limit", "5", "gun leaning upward limit"};
  54
  55 cvar_t cl_followmodel_side = {CVAR_SAVE, "cl_followmodel_side", "1", "enables gun following sideways"};
  56 cvar_t cl_followmodel_side_speed = {CVAR_SAVE, "cl_followmodel_side_speed", "4", "gun following sideways speed"};
  57 cvar_t cl_followmodel_side_limit = {CVAR_SAVE, "cl_followmodel_side_limit", "2", "gun following sideways limit"};
  58 cvar_t cl_followmodel_up = {CVAR_SAVE, "cl_followmodel_up", "1", "enables gun following upward"};
  59 cvar_t cl_followmodel_up_speed = {CVAR_SAVE, "cl_followmodel_up_speed", "3", "gun following upward speed"};
  60 cvar_t cl_followmodel_up_limit = {CVAR_SAVE, "cl_followmodel_up_limit", "1", "gun following upward limit"};
  61
  62 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"};
  63
  64 cvar_t v_kicktime = {0, "v_kicktime", "0.5", "how long a view kick from damage lasts"};
  65 cvar_t v_kickroll = {0, "v_kickroll", "0.6", "how much a view kick from damage rolls your view"};
  66 cvar_t v_kickpitch = {0, "v_kickpitch", "0.6", "how much a view kick from damage pitches your view"};
  67
  68 cvar_t v_iyaw_cycle = {0, "v_iyaw_cycle", "2", "v_idlescale yaw speed"};
  69 cvar_t v_iroll_cycle = {0, "v_iroll_cycle", "0.5", "v_idlescale roll speed"};
  70 cvar_t v_ipitch_cycle = {0, "v_ipitch_cycle", "1", "v_idlescale pitch speed"};
  71 cvar_t v_iyaw_level = {0, "v_iyaw_level", "0.3", "v_idlescale yaw amount"};
  72 cvar_t v_iroll_level = {0, "v_iroll_level", "0.1", "v_idlescale roll amount"};
  73 cvar_t v_ipitch_level = {0, "v_ipitch_level", "0.3", "v_idlescale pitch amount"};
  74
  75 cvar_t v_idlescale = {0, "v_idlescale", "0", "how much of the quake 'drunken view' effect to use"};
  76
  77 cvar_t crosshair = {CVAR_SAVE, "crosshair", "0", "selects crosshair to use (0 is none)"};
  78
  79 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)"};
  80 cvar_t v_centerspeed = {0, "v_centerspeed","500", "how fast the view centers itself"};
  81
  82 cvar_t cl_stairsmoothspeed = {CVAR_SAVE, "cl_stairsmoothspeed", "160", "how fast your view moves upward/downward when running up/down stairs"};
  83
  84 cvar_t chase_back = {CVAR_SAVE, "chase_back", "48", "chase cam distance from the player"};
  85 cvar_t chase_up = {CVAR_SAVE, "chase_up", "24", "chase cam distance from the player"};
  86 cvar_t chase_active = {CVAR_SAVE, "chase_active", "0", "enables chase cam"};
  87 cvar_t chase_overhead = {CVAR_SAVE, "chase_overhead", "0", "chase cam looks straight down if this is not zero"};
  88 // GAME_GOODVSBAD2
  89 cvar_t chase_stevie = {0, "chase_stevie", "0", "chase cam view from above (used only by GoodVsBad2)"};
  90
  91 cvar_t v_deathtilt = {0, "v_deathtilt", "1", "whether to use sideways view when dead"};
  92 cvar_t v_deathtiltangle = {0, "v_deathtiltangle", "80", "what roll angle to use when tilting the view while dead"};
  93
  94 // Prophecy camera pitchangle by Alexander "motorsep" Zubov
  95 cvar_t chase_pitchangle = {CVAR_SAVE, "chase_pitchangle", "55", "chase cam pitch angle"};
  96
  97 float   v_dmg_time, v_dmg_roll, v_dmg_pitch;
  98
  99
 100 /*
 101 ===============
 102 V_CalcRoll
 103
 104 Used by view and sv_user
 105 ===============
 106 */
 107 float V_CalcRoll (vec3_t angles, vec3_t velocity)
 108 {
 109         vec3_t  right;
 110         float   sign;
 111         float   side;
 112         float   value;
 113
 114         AngleVectors (angles, NULL, right, NULL);
 115         side = DotProduct (velocity, right);
 116         sign = side < 0 ? -1 : 1;
 117         side = fabs(side);
 118
 119         value = cl_rollangle.value;
 120
 121         if (side < cl_rollspeed.value)
 122                 side = side * value / cl_rollspeed.value;
 123         else
 124                 side = value;
 125
 126         return side*sign;
 127
 128 }
 129
 130 void V_StartPitchDrift (void)
 131 {
 132         if (cl.laststop == cl.time)
 133                 return;         // something else is keeping it from drifting
 134
 135         if (cl.nodrift || !cl.pitchvel)
 136         {
 137                 cl.pitchvel = v_centerspeed.value;
 138                 cl.nodrift = false;
 139                 cl.driftmove = 0;
 140         }
 141 }
 142
 143 void V_StopPitchDrift (void)
 144 {
 145         cl.laststop = cl.time;
 146         cl.nodrift = true;
 147         cl.pitchvel = 0;
 148 }
 149
 150 /*
 151 ===============
 152 V_DriftPitch
 153
 154 Moves the client pitch angle towards cl.idealpitch sent by the server.
 155
 156 If the user is adjusting pitch manually, either with lookup/lookdown,
 157 mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
 158
 159 Drifting is enabled when the center view key is hit, mlook is released and
 160 lookspring is non 0, or when
 161 ===============
 162 */
 163 void V_DriftPitch (void)
 164 {
 165         float           delta, move;
 166
 167         if (noclip_anglehack || !cl.onground || cls.demoplayback )
 168         {
 169                 cl.driftmove = 0;
 170                 cl.pitchvel = 0;
 171                 return;
 172         }
 173
 174 // don't count small mouse motion
 175         if (cl.nodrift)
 176         {
 177                 if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
 178                         cl.driftmove = 0;
 179                 else
 180                         cl.driftmove += cl.realframetime;
 181
 182                 if ( cl.driftmove > v_centermove.value)
 183                 {
 184                         V_StartPitchDrift ();
 185                 }
 186                 return;
 187         }
 188
 189         delta = cl.idealpitch - cl.viewangles[PITCH];
 190
 191         if (!delta)
 192         {
 193                 cl.pitchvel = 0;
 194                 return;
 195         }
 196
 197         move = cl.realframetime * cl.pitchvel;
 198         cl.pitchvel += cl.realframetime * v_centerspeed.value;
 199
 200         if (delta > 0)
 201         {
 202                 if (move > delta)
 203                 {
 204                         cl.pitchvel = 0;
 205                         move = delta;
 206                 }
 207                 cl.viewangles[PITCH] += move;
 208         }
 209         else if (delta < 0)
 210         {
 211                 if (move > -delta)
 212                 {
 213                         cl.pitchvel = 0;
 214                         move = -delta;
 215                 }
 216                 cl.viewangles[PITCH] -= move;
 217         }
 218 }
 219
 220
 221 /*
 222 ==============================================================================
 223
 224                                                 SCREEN FLASHES
 225
 226 ==============================================================================
 227 */
 228
 229
 230 /*
 231 ===============
 232 V_ParseDamage
 233 ===============
 234 */
 235 void V_ParseDamage (void)
 236 {
 237         int armor, blood;
 238         vec3_t from;
 239         //vec3_t forward, right;
 240         vec3_t localfrom;
 241         entity_t *ent;
 242         //float side;
 243         float count;
 244
 245         armor = MSG_ReadByte ();
 246         blood = MSG_ReadByte ();
 247         MSG_ReadVector(from, cls.protocol);
 248
 249         // Send the Dmg Globals to CSQC
 250         CL_VM_UpdateDmgGlobals(blood, armor, from);
 251
 252         count = blood*0.5 + armor*0.5;
 253         if (count < 10)
 254                 count = 10;
 255
 256         cl.faceanimtime = cl.time + 0.2;                // put sbar face into pain frame
 257
 258         cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
 259         cl.cshifts[CSHIFT_DAMAGE].alphafade = 150;
 260         if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 261                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 262         if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 263                 cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 264
 265         if (armor > blood)
 266         {
 267                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 268                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 269                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 270         }
 271         else if (armor)
 272         {
 273                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 274                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 275                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 276         }
 277         else
 278         {
 279                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 280                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 281                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 282         }
 283
 284         // calculate view angle kicks
 285         if (cl.entities[cl.viewentity].state_current.active)
 286         {
 287                 ent = &cl.entities[cl.viewentity];
 288                 Matrix4x4_Transform(&ent->render.inversematrix, from, localfrom);
 289                 VectorNormalize(localfrom);
 290                 v_dmg_pitch = count * localfrom[0] * v_kickpitch.value;
 291                 v_dmg_roll = count * localfrom[1] * v_kickroll.value;
 292                 v_dmg_time = v_kicktime.value;
 293         }
 294 }
 295
 296 static cshift_t v_cshift;
 297
 298 /*
 299 ==================
 300 V_cshift_f
 301 ==================
 302 */
 303 static void V_cshift_f (void)
 304 {
 305         v_cshift.destcolor[0] = atof(Cmd_Argv(1));
 306         v_cshift.destcolor[1] = atof(Cmd_Argv(2));
 307         v_cshift.destcolor[2] = atof(Cmd_Argv(3));
 308         v_cshift.percent = atof(Cmd_Argv(4));
 309 }
 310
 311
 312 /*
 313 ==================
 314 V_BonusFlash_f
 315
 316 When you run over an item, the server sends this command
 317 ==================
 318 */
 319 static void V_BonusFlash_f (void)
 320 {
 321         if(Cmd_Argc() == 1)
 322         {
 323                 cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 324                 cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 325                 cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 326                 cl.cshifts[CSHIFT_BONUS].percent = 50;
 327                 cl.cshifts[CSHIFT_BONUS].alphafade = 100;
 328         }
 329         else if(Cmd_Argc() >= 4 && Cmd_Argc() <= 6)
 330         {
 331                 cl.cshifts[CSHIFT_BONUS].destcolor[0] = atof(Cmd_Argv(1)) * 255;
 332                 cl.cshifts[CSHIFT_BONUS].destcolor[1] = atof(Cmd_Argv(2)) * 255;
 333                 cl.cshifts[CSHIFT_BONUS].destcolor[2] = atof(Cmd_Argv(3)) * 255;
 334                 if(Cmd_Argc() >= 5)
 335                         cl.cshifts[CSHIFT_BONUS].percent = atof(Cmd_Argv(4)) * 255; // yes, these are HEXADECIMAL percent ;)
 336                 else
 337                         cl.cshifts[CSHIFT_BONUS].percent = 50;
 338                 if(Cmd_Argc() >= 6)
 339                         cl.cshifts[CSHIFT_BONUS].alphafade = atof(Cmd_Argv(5)) * 255;
 340                 else
 341                         cl.cshifts[CSHIFT_BONUS].alphafade = 100;
 342         }
 343         else
 344                 Con_Printf("usage:\nbf, or bf R G B [A [alphafade]]\n");
 345 }
 346
 347 /*
 348 ==============================================================================
 349
 350                                                 VIEW RENDERING
 351
 352 ==============================================================================
 353 */
 354
 355 extern matrix4x4_t viewmodelmatrix;
 356
 357 #include "cl_collision.h"
 358 #include "csprogs.h"
 359
 360 /*
 361 ==================
 362 V_CalcRefdef
 363
 364 ==================
 365 */
 366 #if 0
 367 static vec3_t eyeboxmins = {-16, -16, -24};
 368 static vec3_t eyeboxmaxs = { 16,  16,  32};
 369 #endif
 370 void V_CalcRefdef (void)
 371 {
 372         entity_t *ent;
 373         float vieworg[3], gunorg[3], viewangles[3], gunangles[3], smoothtime;
 374 #if 0
 375 // begin of chase camera bounding box size for proper collisions by Alexander Zubov
 376         vec3_t camboxmins = {-3, -3, -3};
 377         vec3_t camboxmaxs = {3, 3, 3};
 378 // end of chase camera bounding box size for proper collisions by Alexander Zubov
 379 #endif
 380         trace_t trace;
 381         VectorClear(gunorg);
 382         viewmodelmatrix = identitymatrix;
 383         r_refdef.view.matrix = identitymatrix;
 384         if (cls.state == ca_connected && cls.signon == SIGNONS)
 385         {
 386                 // ent is the view entity (visible when out of body)
 387                 ent = &cl.entities[cl.viewentity];
 388                 // player can look around, so take the origin from the entity,
 389                 // and the angles from the input system
 390                 Matrix4x4_OriginFromMatrix(&ent->render.matrix, vieworg);
 391                 VectorCopy(cl.viewangles, viewangles);
 392
 393                 // calculate how much time has passed since the last V_CalcRefdef
 394                 smoothtime = bound(0, cl.time - cl.stairsmoothtime, 0.1);
 395                 cl.stairsmoothtime = cl.time;
 396
 397                 // fade damage flash
 398                 if (v_dmg_time > 0)
 399                         v_dmg_time -= bound(0, smoothtime, 0.1);
 400
 401                 if (cl.intermission)
 402                 {
 403                         // entity is a fixed camera, just copy the matrix
 404                         if (cls.protocol == PROTOCOL_QUAKEWORLD)
 405                                 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);
 406                         else
 407                         {
 408                                 r_refdef.view.matrix = ent->render.matrix;
 409                                 Matrix4x4_AdjustOrigin(&r_refdef.view.matrix, 0, 0, cl.stats[STAT_VIEWHEIGHT]);
 410                         }
 411                         viewmodelmatrix = r_refdef.view.matrix;
 412                 }
 413                 else
 414                 {
 415                         // smooth stair stepping, but only if onground and enabled
 416                         if (!cl.onground || cl_stairsmoothspeed.value <= 0)
 417                                 cl.stairsmoothz = vieworg[2];
 418                         else
 419                         {
 420                                 if (cl.stairsmoothz < vieworg[2])
 421                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2] - 16, cl.stairsmoothz + smoothtime * cl_stairsmoothspeed.value, vieworg[2]);
 422                                 else if (cl.stairsmoothz > vieworg[2])
 423                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2], cl.stairsmoothz - smoothtime * cl_stairsmoothspeed.value, vieworg[2] + 16);
 424                         }
 425
 426                         // apply qw weapon recoil effect (this did not work in QW)
 427                         // TODO: add a cvar to disable this
 428                         viewangles[PITCH] += cl.qw_weaponkick;
 429
 430                         // apply the viewofs (even if chasecam is used)
 431                         vieworg[2] += cl.stats[STAT_VIEWHEIGHT];
 432
 433                         if (chase_active.value)
 434                         {
 435                                 // observing entity from third person. Added "campitch" by Alexander "motorsep" Zubov
 436                                 vec_t camback, camup, dist, campitch, forward[3], chase_dest[3];
 437
 438                                 camback = chase_back.value;
 439                                 camup = chase_up.value;
 440                                 campitch = chase_pitchangle.value;
 441
 442                                 AngleVectors(viewangles, forward, NULL, NULL);
 443
 444                                 if (chase_overhead.integer)
 445                                 {
 446 #if 1
 447                                         vec3_t offset;
 448                                         vec3_t bestvieworg;
 449 #endif
 450                                         vec3_t up;
 451                                         viewangles[PITCH] = 0;
 452                                         AngleVectors(viewangles, forward, NULL, up);
 453                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 454                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup;
 455                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup;
 456                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup;
 457 #if 0
 458 #if 1
 459                                         //trace = CL_TraceLine(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 460                                         trace = CL_TraceLine(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 461 #else
 462                                         //trace = CL_TraceBox(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 463                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 464 #endif
 465                                         VectorCopy(trace.endpos, vieworg);
 466                                         vieworg[2] -= 8;
 467 #else
 468                                         // trace from first person view location to our chosen third person view location
 469 #if 1
 470                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 471 #else
 472                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 473 #endif
 474                                         VectorCopy(trace.endpos, bestvieworg);
 475                                         offset[2] = 0;
 476                                         for (offset[0] = -16;offset[0] <= 16;offset[0] += 8)
 477                                         {
 478                                                 for (offset[1] = -16;offset[1] <= 16;offset[1] += 8)
 479                                                 {
 480                                                         AngleVectors(viewangles, NULL, NULL, up);
 481                                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup + offset[0];
 482                                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup + offset[1];
 483                                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup + offset[2];
 484 #if 1
 485                                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 486 #else
 487                                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 488 #endif
 489                                                         if (bestvieworg[2] > trace.endpos[2])
 490                                                                 bestvieworg[2] = trace.endpos[2];
 491                                                 }
 492                                         }
 493                                         bestvieworg[2] -= 8;
 494                                         VectorCopy(bestvieworg, vieworg);
 495 #endif
 496                                         viewangles[PITCH] = campitch;
 497                                 }
 498                                 else
 499                                 {
 500                                         if (gamemode == GAME_GOODVSBAD2 && chase_stevie.integer)
 501                                         {
 502                                                 // look straight down from high above
 503                                                 viewangles[PITCH] = 90;
 504                                                 camback = 2048;
 505                                                 VectorSet(forward, 0, 0, -1);
 506                                         }
 507
 508                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 509                                         dist = -camback - 8;
 510                                         chase_dest[0] = vieworg[0] + forward[0] * dist;
 511                                         chase_dest[1] = vieworg[1] + forward[1] * dist;
 512                                         chase_dest[2] = vieworg[2] + forward[2] * dist + camup;
 513                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 514                                         VectorMAMAM(1, trace.endpos, 8, forward, 4, trace.plane.normal, vieworg);
 515                                 }
 516                         }
 517                         else
 518                         {
 519                                 // first person view from entity
 520                                 // angles
 521                                 if (cl.stats[STAT_HEALTH] <= 0 && v_deathtilt.integer)
 522                                         viewangles[ROLL] = v_deathtiltangle.value;
 523                                 VectorAdd(viewangles, cl.punchangle, viewangles);
 524                                 viewangles[ROLL] += V_CalcRoll(cl.viewangles, cl.movement_velocity);
 525                                 if (v_dmg_time > 0)
 526                                 {
 527                                         viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 528                                         viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 529                                 }
 530                                 // origin
 531                                 VectorAdd(vieworg, cl.punchvector, vieworg);
 532                                 if (cl.stats[STAT_HEALTH] > 0)
 533                                 {
 534                                         double xyspeed, bob;
 535                                         vec_t d;
 536                                         vec_t ef_speed = cl.realframetime;
 537
 538                                         // gun model leaning code
 539                                         if(cl_leanmodel_up.value && cl_leanmodel_up_speed.value * ef_speed < 1) // bad things happen if this goes over 1, so prevent the effect
 540                                         {
 541                                                 // prevent the gun from doing a 360* rotation when going around the 0 <-> 360 border
 542                                                 if(cl.viewangles[PITCH] - cl.viewmodel_push_x >= 180)
 543                                                         cl.viewmodel_push_x += 360;
 544                                                 if(cl.viewmodel_push_x - cl.viewangles[PITCH] >= 180)
 545                                                         cl.viewmodel_push_x -= 360;
 546
 547                                                 d = cl.viewangles[PITCH] - cl.viewmodel_push_x;
 548                                                 cl.viewmodel_push_x = bound(cl.viewangles[PITCH] - cl_leanmodel_up_limit.value, cl.viewmodel_push_x + d * cl_leanmodel_up_speed.value * ef_speed, cl.viewangles[PITCH] + cl_leanmodel_up_limit.value);
 549                                         }
 550                                         else
 551                                                 cl.viewmodel_push_x = cl.viewangles[PITCH];
 552
 553                                         if(cl_leanmodel_side.value && cl_leanmodel_side_speed.value * ef_speed < 1) // bad things happen if this goes over 1, so prevent the effect
 554                                         {
 555                                                 // prevent the gun from doing a 360* rotation when going around the 0 <-> 360 border
 556                                                 if(cl.viewangles[YAW] - cl.viewmodel_push_y >= 180)
 557                                                         cl.viewmodel_push_y += 360;
 558                                                 if(cl.viewmodel_push_y - cl.viewangles[YAW] >= 180)
 559                                                         cl.viewmodel_push_y -= 360;
 560
 561                                                 d = cl.viewangles[YAW] - cl.viewmodel_push_y;
 562                                                 cl.viewmodel_push_y = bound(cl.viewangles[YAW] - cl_leanmodel_side_limit.value, cl.viewmodel_push_y + d * cl_leanmodel_side_speed.value * ef_speed, cl.viewangles[YAW] + cl_leanmodel_side_limit.value);
 563                                         }
 564                                         else
 565                                                 cl.viewmodel_push_y = cl.viewangles[YAW];
 566
 567                                         VectorSet(gunangles, cl.viewmodel_push_x, cl.viewmodel_push_y, viewangles[2]);
 568
 569                                         // gun model following code
 570                                         if(cl_followmodel_side.value && cl_followmodel_side_speed.value * ef_speed < 1) // bad things happen if this goes over 1, so prevent the effect
 571                                         {
 572                                                 vec_t d0 = vieworg[0] - cl.gunorg_follow[0];
 573                                                 vec_t d1 = vieworg[1] - cl.gunorg_follow[1];
 574                                                 d = sqrt(d0 * d0 + d1 * d1);
 575                                                 if(d > 0)
 576                                                 {
 577                                                         cl.gunorg_follow[0] = cl.gunorg_follow[0] + d0 * cl_followmodel_side_speed.value * ef_speed;
 578                                                         cl.gunorg_follow[1] = cl.gunorg_follow[1] + d1 * cl_followmodel_side_speed.value * ef_speed;
 579                                                         d *= (1 - cl_followmodel_side_speed.value * ef_speed);
 580                                                         if(d > cl_followmodel_side_limit.value)
 581                                                         {
 582                                                                 cl.gunorg_follow[0] = vieworg[0] - (d0 / d) * cl_followmodel_side_limit.value;
 583                                                                 cl.gunorg_follow[1] = vieworg[1] - (d1 / d) * cl_followmodel_side_limit.value;
 584                                                         }
 585                                                 }
 586                                         }
 587                                         else
 588                                         {
 589                                                 cl.gunorg_follow[0] = vieworg[0];
 590                                                 cl.gunorg_follow[1] = vieworg[1];
 591                                         }
 592
 593                                         if(cl_followmodel_up.value && cl_followmodel_up_speed.value * ef_speed < 1) // bad things happen if this goes over 1, so prevent the effect
 594                                         {
 595                                                 d = vieworg[2] - cl.gunorg_follow[2];
 596                                                 cl.gunorg_follow[2] = bound(vieworg[2] - cl_followmodel_up_limit.value, cl.gunorg_follow[2] + d * cl_followmodel_up_speed.value * ef_speed, vieworg[2] + cl_followmodel_up_limit.value);
 597                                         }
 598                                         else
 599                                                 cl.gunorg_follow[2] = vieworg[2];
 600
 601                                         VectorCopy(cl.gunorg_follow, gunorg);
 602
 603                                         // view bobbing code
 604                                         xyspeed = sqrt(cl.movement_velocity[0]*cl.movement_velocity[0] + cl.movement_velocity[1]*cl.movement_velocity[1]);
 605                                         if (cl_bob.value && cl_bobcycle.value)
 606                                         {
 607                                                 float cycle;
 608                                                 // LordHavoc: this code is *weird*, but not replacable (I think it
 609                                                 // should be done in QC on the server, but oh well, quake is quake)
 610                                                 // LordHavoc: figured out bobup: the time at which the sin is at 180
 611                                                 // degrees (which allows lengthening or squishing the peak or valley)
 612                                                 cycle = cl.time / cl_bobcycle.value;
 613                                                 cycle -= (int) cycle;
 614                                                 if (cycle < cl_bobup.value)
 615                                                         cycle = sin(M_PI * cycle / cl_bobup.value);
 616                                                 else
 617                                                         cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
 618                                                 // bob is proportional to velocity in the xy plane
 619                                                 // (don't count Z, or jumping messes it up)
 620                                                 bob = xyspeed * cl_bob.value;
 621                                                 bob = bob*0.3 + bob*0.7*cycle;
 622                                                 vieworg[2] += bound(-7, bob, 4);
 623                                                 // we also need to adjust gunorg, or this appears like pushing the gun!
 624                                                 // In the old code, this was applied to vieworg BEFORE copying to gunorg,
 625                                                 // but this is not viable with the new followmodel code as that would mean
 626                                                 // that followmodel would work on the munged-by-bob vieworg and do feedback
 627                                                 gunorg[2] += bound(-7, bob, 4);
 628                                         }
 629
 630                                         // gun model bobbing code
 631                                         if (cl_bob.value && cl_bobmodel.value)
 632                                         {
 633                                                 // calculate for swinging gun model
 634                                                 // the gun bobs when running on the ground, but doesn't bob when you're in the air.
 635                                                 // Sajt: I tried to smooth out the transitions between bob and no bob, which works
 636                                                 // for the most part, but for some reason when you go through a message trigger or
 637                                                 // pick up an item or anything like that it will momentarily jolt the gun.
 638                                                 vec3_t forward, right, up;
 639                                                 float bspeed;
 640                                                 float s;
 641                                                 float t;
 642
 643                                                 s = cl.time * cl_bobmodel_speed.value;
 644                                                 if (cl.onground)
 645                                                 {
 646                                                         if (cl.time - cl.hitgroundtime < 0.2)
 647                                                         {
 648                                                                 // just hit the ground, speed the bob back up over the next 0.2 seconds
 649                                                                 t = cl.time - cl.hitgroundtime;
 650                                                                 t = bound(0, t, 0.2);
 651                                                                 t *= 5;
 652                                                         }
 653                                                         else
 654                                                                 t = 1;
 655                                                 }
 656                                                 else
 657                                                 {
 658                                                         // recently left the ground, slow the bob down over the next 0.2 seconds
 659                                                         t = cl.time - cl.lastongroundtime;
 660                                                         t = 0.2 - bound(0, t, 0.2);
 661                                                         t *= 5;
 662                                                 }
 663
 664                                                 bspeed = bound (0, xyspeed, 400) * 0.01f;
 665                                                 AngleVectors (gunangles, forward, right, up);
 666                                                 bob = bspeed * cl_bobmodel_side.value * cl_viewmodel_scale.value * sin (s) * t;
 667                                                 VectorMA (gunorg, bob, right, gunorg);
 668                                                 bob = bspeed * cl_bobmodel_up.value * cl_viewmodel_scale.value * cos (s * 2) * t;
 669                                                 VectorMA (gunorg, bob, up, gunorg);
 670                                         }
 671                                 }
 672                         }
 673                         // calculate a view matrix for rendering the scene
 674                         if (v_idlescale.value)
 675                                 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);
 676                         else
 677                                 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);
 678                         // calculate a viewmodel matrix for use in view-attached entities
 679                         Matrix4x4_CreateFromQuakeEntity(&viewmodelmatrix, gunorg[0], gunorg[1], gunorg[2], gunangles[0], gunangles[1], gunangles[2], cl_viewmodel_scale.value);
 680                         VectorCopy(vieworg, cl.csqc_origin);
 681                         VectorCopy(viewangles, cl.csqc_angles);
 682                 }
 683         }
 684 }
 685
 686 void V_FadeViewFlashs(void)
 687 {
 688         // don't flash if time steps backwards
 689         if (cl.time <= cl.oldtime)
 690                 return;
 691         // drop the damage value
 692         cl.cshifts[CSHIFT_DAMAGE].percent -= (cl.time - cl.oldtime)*cl.cshifts[CSHIFT_DAMAGE].alphafade;
 693         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 694                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 695         // drop the bonus value
 696         cl.cshifts[CSHIFT_BONUS].percent -= (cl.time - cl.oldtime)*cl.cshifts[CSHIFT_BONUS].alphafade;
 697         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 698                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 699 }
 700
 701 void V_CalcViewBlend(void)
 702 {
 703         float a2;
 704         int j;
 705         r_refdef.viewblend[0] = 0;
 706         r_refdef.viewblend[1] = 0;
 707         r_refdef.viewblend[2] = 0;
 708         r_refdef.viewblend[3] = 0;
 709         r_refdef.frustumscale_x = 1;
 710         r_refdef.frustumscale_y = 1;
 711         if (cls.state == ca_connected && cls.signon == SIGNONS)
 712         {
 713                 // set contents color
 714                 int supercontents;
 715                 vec3_t vieworigin;
 716                 Matrix4x4_OriginFromMatrix(&r_refdef.view.matrix, vieworigin);
 717                 supercontents = CL_PointSuperContents(vieworigin);
 718                 if (supercontents & SUPERCONTENTS_LIQUIDSMASK)
 719                 {
 720                         r_refdef.frustumscale_x *= 1 - (((sin(cl.time * 4.7) + 1) * 0.015) * r_waterwarp.value);
 721                         r_refdef.frustumscale_y *= 1 - (((sin(cl.time * 3.0) + 1) * 0.015) * r_waterwarp.value);
 722                         if (supercontents & SUPERCONTENTS_LAVA)
 723                         {
 724                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 255;
 725                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 726                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 727                         }
 728                         else if (supercontents & SUPERCONTENTS_SLIME)
 729                         {
 730                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 731                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 25;
 732                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 5;
 733                         }
 734                         else
 735                         {
 736                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 130;
 737                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 738                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 50;
 739                         }
 740                         cl.cshifts[CSHIFT_CONTENTS].percent = 150 * 0.5;
 741                 }
 742                 else
 743                 {
 744                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 745                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 0;
 746                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 747                         cl.cshifts[CSHIFT_CONTENTS].percent = 0;
 748                 }
 749
 750                 if (gamemode != GAME_TRANSFUSION)
 751                 {
 752                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
 753                         {
 754                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 755                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 756                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 757                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 758                         }
 759                         else if (cl.stats[STAT_ITEMS] & IT_SUIT)
 760                         {
 761                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 762                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 763                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 764                                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 765                         }
 766                         else if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
 767                         {
 768                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 769                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 770                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 771                                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 772                         }
 773                         else if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
 774                         {
 775                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 776                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 777                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 778                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 779                         }
 780                         else
 781                                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 782                 }
 783
 784                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[0] = v_cshift.destcolor[0];
 785                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[1] = v_cshift.destcolor[1];
 786                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[2] = v_cshift.destcolor[2];
 787                 cl.cshifts[CSHIFT_VCSHIFT].percent = v_cshift.percent;
 788
 789                 // LordHavoc: fixed V_CalcBlend
 790                 for (j = 0;j < NUM_CSHIFTS;j++)
 791                 {
 792                         a2 = bound(0.0f, cl.cshifts[j].percent * (1.0f / 255.0f), 1.0f);
 793                         if (a2 > 0)
 794                         {
 795                                 VectorLerp(r_refdef.viewblend, a2, cl.cshifts[j].destcolor, r_refdef.viewblend);
 796                                 r_refdef.viewblend[3] = (1 - (1 - r_refdef.viewblend[3]) * (1 - a2)); // correct alpha multiply...  took a while to find it on the web
 797                         }
 798                 }
 799                 // saturate color (to avoid blending in black)
 800                 if (r_refdef.viewblend[3])
 801                 {
 802                         a2 = 1 / r_refdef.viewblend[3];
 803                         VectorScale(r_refdef.viewblend, a2, r_refdef.viewblend);
 804                 }
 805                 r_refdef.viewblend[0] = bound(0.0f, r_refdef.viewblend[0] * (1.0f/255.0f), 1.0f);
 806                 r_refdef.viewblend[1] = bound(0.0f, r_refdef.viewblend[1] * (1.0f/255.0f), 1.0f);
 807                 r_refdef.viewblend[2] = bound(0.0f, r_refdef.viewblend[2] * (1.0f/255.0f), 1.0f);
 808                 r_refdef.viewblend[3] = bound(0.0f, r_refdef.viewblend[3] * gl_polyblend.value, 1.0f);
 809
 810                 // Samual: Ugly hack, I know. But it's the best we can do since
 811                 // there is no way to detect client states from the engine.
 812                 if (cl.stats[STAT_HEALTH] <= 0 && cl.stats[STAT_HEALTH] != -666 &&
 813                         cl.stats[STAT_HEALTH] != -2342 && cl_deathfade.value > 0)
 814                 {
 815                         cl.deathfade += cl_deathfade.value * max(0.00001, cl.time - cl.oldtime);
 816                         cl.deathfade = bound(0.0f, cl.deathfade, 0.9f);
 817                 }
 818                 else
 819                         cl.deathfade = 0.0f;
 820
 821                 if(cl.deathfade > 0)
 822                 {
 823                         float a;
 824                         float deathfadevec[3] = {0.3f, 0.0f, 0.0f};
 825                         a = r_refdef.viewblend[3] + cl.deathfade - r_refdef.viewblend[3]*cl.deathfade;
 826                         if(a > 0)
 827                                 VectorMAM(r_refdef.viewblend[3] * (1 - cl.deathfade) / a, r_refdef.viewblend, cl.deathfade / a, deathfadevec, r_refdef.viewblend);
 828                         r_refdef.viewblend[3] = a;
 829                 }
 830         }
 831 }
 832
 833 //============================================================================
 834
 835 /*
 836 =============
 837 V_Init
 838 =============
 839 */
 840 void V_Init (void)
 841 {
 842         Cmd_AddCommand ("v_cshift", V_cshift_f, "sets tint color of view");
 843         Cmd_AddCommand ("bf", V_BonusFlash_f, "briefly flashes a bright color tint on view (used when items are picked up); optionally takes R G B [A [alphafade]] arguments to specify how the flash looks");
 844         Cmd_AddCommand ("centerview", V_StartPitchDrift, "gradually recenter view (stop looking up/down)");
 845
 846         Cvar_RegisterVariable (&v_centermove);
 847         Cvar_RegisterVariable (&v_centerspeed);
 848
 849         Cvar_RegisterVariable (&v_iyaw_cycle);
 850         Cvar_RegisterVariable (&v_iroll_cycle);
 851         Cvar_RegisterVariable (&v_ipitch_cycle);
 852         Cvar_RegisterVariable (&v_iyaw_level);
 853         Cvar_RegisterVariable (&v_iroll_level);
 854         Cvar_RegisterVariable (&v_ipitch_level);
 855
 856         Cvar_RegisterVariable (&v_idlescale);
 857         Cvar_RegisterVariable (&crosshair);
 858
 859         Cvar_RegisterVariable (&cl_rollspeed);
 860         Cvar_RegisterVariable (&cl_rollangle);
 861         Cvar_RegisterVariable (&cl_bob);
 862         Cvar_RegisterVariable (&cl_bobcycle);
 863         Cvar_RegisterVariable (&cl_bobup);
 864         Cvar_RegisterVariable (&cl_bobmodel);
 865         Cvar_RegisterVariable (&cl_bobmodel_side);
 866         Cvar_RegisterVariable (&cl_bobmodel_up);
 867         Cvar_RegisterVariable (&cl_bobmodel_speed);
 868
 869         Cvar_RegisterVariable (&cl_leanmodel_side);
 870         Cvar_RegisterVariable (&cl_leanmodel_side_speed);
 871         Cvar_RegisterVariable (&cl_leanmodel_side_limit);
 872         Cvar_RegisterVariable (&cl_leanmodel_up);
 873         Cvar_RegisterVariable (&cl_leanmodel_up_speed);
 874         Cvar_RegisterVariable (&cl_leanmodel_up_limit);
 875
 876         Cvar_RegisterVariable (&cl_followmodel_side);
 877         Cvar_RegisterVariable (&cl_followmodel_side_speed);
 878         Cvar_RegisterVariable (&cl_followmodel_side_limit);
 879         Cvar_RegisterVariable (&cl_followmodel_up);
 880         Cvar_RegisterVariable (&cl_followmodel_up_speed);
 881         Cvar_RegisterVariable (&cl_followmodel_up_limit);
 882
 883         Cvar_RegisterVariable (&cl_viewmodel_scale);
 884
 885         Cvar_RegisterVariable (&v_kicktime);
 886         Cvar_RegisterVariable (&v_kickroll);
 887         Cvar_RegisterVariable (&v_kickpitch);
 888
 889         Cvar_RegisterVariable (&cl_stairsmoothspeed);
 890
 891         Cvar_RegisterVariable (&chase_back);
 892         Cvar_RegisterVariable (&chase_up);
 893         Cvar_RegisterVariable (&chase_active);
 894         Cvar_RegisterVariable (&chase_overhead);
 895         Cvar_RegisterVariable (&chase_pitchangle);
 896         if (gamemode == GAME_GOODVSBAD2)
 897                 Cvar_RegisterVariable (&chase_stevie);
 898
 899         Cvar_RegisterVariable (&v_deathtilt);
 900         Cvar_RegisterVariable (&v_deathtiltangle);
 901 }
 902