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         cl.cshifts[CSHIFT_DAMAGE].alphafade = 150;
 246         if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 247                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 248         if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 249                 cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 250
 251         if (armor > blood)
 252         {
 253                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 254                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 255                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 256         }
 257         else if (armor)
 258         {
 259                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 260                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 261                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 262         }
 263         else
 264         {
 265                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 266                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 267                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 268         }
 269
 270         // calculate view angle kicks
 271         if (cl.entities[cl.viewentity].state_current.active)
 272         {
 273                 ent = &cl.entities[cl.viewentity];
 274                 Matrix4x4_Transform(&ent->render.inversematrix, from, localfrom);
 275                 VectorNormalize(localfrom);
 276                 v_dmg_pitch = count * localfrom[0] * v_kickpitch.value;
 277                 v_dmg_roll = count * localfrom[1] * v_kickroll.value;
 278                 v_dmg_time = v_kicktime.value;
 279         }
 280 }
 281
 282 static cshift_t v_cshift;
 283
 284 /*
 285 ==================
 286 V_cshift_f
 287 ==================
 288 */
 289 static void V_cshift_f (void)
 290 {
 291         v_cshift.destcolor[0] = atof(Cmd_Argv(1));
 292         v_cshift.destcolor[1] = atof(Cmd_Argv(2));
 293         v_cshift.destcolor[2] = atof(Cmd_Argv(3));
 294         v_cshift.percent = atof(Cmd_Argv(4));
 295 }
 296
 297
 298 /*
 299 ==================
 300 V_BonusFlash_f
 301
 302 When you run over an item, the server sends this command
 303 ==================
 304 */
 305 static void V_BonusFlash_f (void)
 306 {
 307         if(Cmd_Argc() == 1)
 308         {
 309                 cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 310                 cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 311                 cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 312                 cl.cshifts[CSHIFT_BONUS].percent = 50;
 313                 cl.cshifts[CSHIFT_BONUS].alphafade = 100;
 314         }
 315         else if(Cmd_Argc() >= 4 && Cmd_Argc() <= 6)
 316         {
 317                 cl.cshifts[CSHIFT_BONUS].destcolor[0] = atof(Cmd_Argv(1)) * 255;
 318                 cl.cshifts[CSHIFT_BONUS].destcolor[1] = atof(Cmd_Argv(2)) * 255;
 319                 cl.cshifts[CSHIFT_BONUS].destcolor[2] = atof(Cmd_Argv(3)) * 255;
 320                 if(Cmd_Argc() >= 5)
 321                         cl.cshifts[CSHIFT_BONUS].percent = atof(Cmd_Argv(4)) * 255; // yes, these are HEXADECIMAL percent ;)
 322                 else
 323                         cl.cshifts[CSHIFT_BONUS].percent = 50;
 324                 if(Cmd_Argc() >= 6)
 325                         cl.cshifts[CSHIFT_BONUS].alphafade = atof(Cmd_Argv(5)) * 255;
 326                 else
 327                         cl.cshifts[CSHIFT_BONUS].alphafade = 100;
 328         }
 329         else
 330                 Con_Printf("usage:\nbf, or bf R G B [A [alphafade]]\n");
 331 }
 332
 333 /*
 334 ==============================================================================
 335
 336                                                 VIEW RENDERING
 337
 338 ==============================================================================
 339 */
 340
 341 extern matrix4x4_t viewmodelmatrix;
 342
 343 #include "cl_collision.h"
 344 #include "csprogs.h"
 345
 346 /*
 347 ==================
 348 V_CalcRefdef
 349
 350 ==================
 351 */
 352 #if 0
 353 static vec3_t eyeboxmins = {-16, -16, -24};
 354 static vec3_t eyeboxmaxs = { 16,  16,  32};
 355 #endif
 356 float viewmodel_push_x, viewmodel_push_y;
 357 void V_CalcRefdef (void)
 358 {
 359         entity_t *ent;
 360         float vieworg[3], gunorg[3], viewangles[3], gunangles[3], smoothtime;
 361 #if 0
 362 // begin of chase camera bounding box size for proper collisions by Alexander Zubov
 363         vec3_t camboxmins = {-3, -3, -3};
 364         vec3_t camboxmaxs = {3, 3, 3};
 365 // end of chase camera bounding box size for proper collisions by Alexander Zubov
 366 #endif
 367         trace_t trace;
 368         VectorClear(gunorg);
 369         viewmodelmatrix = identitymatrix;
 370         r_refdef.view.matrix = identitymatrix;
 371         if (cls.state == ca_connected && cls.signon == SIGNONS)
 372         {
 373                 // ent is the view entity (visible when out of body)
 374                 ent = &cl.entities[cl.viewentity];
 375                 // player can look around, so take the origin from the entity,
 376                 // and the angles from the input system
 377                 Matrix4x4_OriginFromMatrix(&ent->render.matrix, vieworg);
 378                 VectorCopy(cl.viewangles, viewangles);
 379
 380                 // calculate how much time has passed since the last V_CalcRefdef
 381                 smoothtime = bound(0, cl.time - cl.stairsmoothtime, 0.1);
 382                 cl.stairsmoothtime = cl.time;
 383
 384                 // fade damage flash
 385                 if (v_dmg_time > 0)
 386                         v_dmg_time -= bound(0, smoothtime, 0.1);
 387
 388                 if (cl.intermission)
 389                 {
 390                         // entity is a fixed camera, just copy the matrix
 391                         if (cls.protocol == PROTOCOL_QUAKEWORLD)
 392                                 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);
 393                         else
 394                         {
 395                                 r_refdef.view.matrix = ent->render.matrix;
 396                                 Matrix4x4_AdjustOrigin(&r_refdef.view.matrix, 0, 0, cl.stats[STAT_VIEWHEIGHT]);
 397                         }
 398                         viewmodelmatrix = r_refdef.view.matrix;
 399                 }
 400                 else
 401                 {
 402                         // smooth stair stepping, but only if onground and enabled
 403                         if (!cl.onground || cl_stairsmoothspeed.value <= 0)
 404                                 cl.stairsmoothz = vieworg[2];
 405                         else
 406                         {
 407                                 if (cl.stairsmoothz < vieworg[2])
 408                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2] - 16, cl.stairsmoothz + smoothtime * cl_stairsmoothspeed.value, vieworg[2]);
 409                                 else if (cl.stairsmoothz > vieworg[2])
 410                                         vieworg[2] = cl.stairsmoothz = bound(vieworg[2], cl.stairsmoothz - smoothtime * cl_stairsmoothspeed.value, vieworg[2] + 16);
 411                         }
 412
 413                         // apply qw weapon recoil effect (this did not work in QW)
 414                         // TODO: add a cvar to disable this
 415                         viewangles[PITCH] += cl.qw_weaponkick;
 416
 417                         // apply the viewofs (even if chasecam is used)
 418                         vieworg[2] += cl.stats[STAT_VIEWHEIGHT];
 419
 420                         if (chase_active.value)
 421                         {
 422                                 // observing entity from third person. Added "campitch" by Alexander "motorsep" Zubov
 423                                 vec_t camback, camup, dist, campitch, forward[3], chase_dest[3];
 424
 425                                 camback = chase_back.value;
 426                                 camup = chase_up.value;
 427                                 campitch = chase_pitchangle.value;
 428
 429                                 AngleVectors(viewangles, forward, NULL, NULL);
 430
 431                                 if (chase_overhead.integer)
 432                                 {
 433 #if 1
 434                                         vec3_t offset;
 435                                         vec3_t bestvieworg;
 436 #endif
 437                                         vec3_t up;
 438                                         viewangles[PITCH] = 0;
 439                                         AngleVectors(viewangles, forward, NULL, up);
 440                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 441                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup;
 442                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup;
 443                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup;
 444 #if 0
 445 #if 1
 446                                         //trace = CL_TraceLine(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 447                                         trace = CL_TraceLine(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 448 #else
 449                                         //trace = CL_TraceBox(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 450                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 451 #endif
 452                                         VectorCopy(trace.endpos, vieworg);
 453                                         vieworg[2] -= 8;
 454 #else
 455                                         // trace from first person view location to our chosen third person view location
 456 #if 1
 457                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 458 #else
 459                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 460 #endif
 461                                         VectorCopy(trace.endpos, bestvieworg);
 462                                         offset[2] = 0;
 463                                         for (offset[0] = -16;offset[0] <= 16;offset[0] += 8)
 464                                         {
 465                                                 for (offset[1] = -16;offset[1] <= 16;offset[1] += 8)
 466                                                 {
 467                                                         AngleVectors(viewangles, NULL, NULL, up);
 468                                                         chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup + offset[0];
 469                                                         chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup + offset[1];
 470                                                         chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup + offset[2];
 471 #if 1
 472                                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 473 #else
 474                                                         trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 475 #endif
 476                                                         if (bestvieworg[2] > trace.endpos[2])
 477                                                                 bestvieworg[2] = trace.endpos[2];
 478                                                 }
 479                                         }
 480                                         bestvieworg[2] -= 8;
 481                                         VectorCopy(bestvieworg, vieworg);
 482 #endif
 483                                         viewangles[PITCH] = campitch;
 484                                 }
 485                                 else
 486                                 {
 487                                         if (gamemode == GAME_GOODVSBAD2 && chase_stevie.integer)
 488                                         {
 489                                                 // look straight down from high above
 490                                                 viewangles[PITCH] = 90;
 491                                                 camback = 2048;
 492                                                 VectorSet(forward, 0, 0, -1);
 493                                         }
 494
 495                                         // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 496                                         dist = -camback - 8;
 497                                         chase_dest[0] = vieworg[0] + forward[0] * dist;
 498                                         chase_dest[1] = vieworg[1] + forward[1] * dist;
 499                                         chase_dest[2] = vieworg[2] + forward[2] * dist + camup;
 500                                         trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
 501                                         VectorMAMAM(1, trace.endpos, 8, forward, 4, trace.plane.normal, vieworg);
 502                                 }
 503                         }
 504                         else
 505                         {
 506                                 // first person view from entity
 507                                 // angles
 508                                 if (cl.stats[STAT_HEALTH] <= 0 && v_deathtilt.integer)
 509                                         viewangles[ROLL] = v_deathtiltangle.value;
 510                                 VectorAdd(viewangles, cl.punchangle, viewangles);
 511                                 viewangles[ROLL] += V_CalcRoll(cl.viewangles, cl.movement_velocity);
 512                                 if (v_dmg_time > 0)
 513                                 {
 514                                         viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 515                                         viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 516                                 }
 517                                 // origin
 518                                 VectorAdd(vieworg, cl.punchvector, vieworg);
 519                                 if (cl.stats[STAT_HEALTH] > 0)
 520                                 {
 521                                         double xyspeed, bob;
 522
 523                                         xyspeed = sqrt(cl.movement_velocity[0]*cl.movement_velocity[0] + cl.movement_velocity[1]*cl.movement_velocity[1]);
 524                                         if (cl_bob.value && cl_bobcycle.value)
 525                                         {
 526                                                 float cycle;
 527                                                 // LordHavoc: this code is *weird*, but not replacable (I think it
 528                                                 // should be done in QC on the server, but oh well, quake is quake)
 529                                                 // LordHavoc: figured out bobup: the time at which the sin is at 180
 530                                                 // degrees (which allows lengthening or squishing the peak or valley)
 531                                                 cycle = cl.time / cl_bobcycle.value;
 532                                                 cycle -= (int) cycle;
 533                                                 if (cycle < cl_bobup.value)
 534                                                         cycle = sin(M_PI * cycle / cl_bobup.value);
 535                                                 else
 536                                                         cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
 537                                                 // bob is proportional to velocity in the xy plane
 538                                                 // (don't count Z, or jumping messes it up)
 539                                                 bob = xyspeed * cl_bob.value;
 540                                                 bob = bob*0.3 + bob*0.7*cycle;
 541                                                 vieworg[2] += bound(-7, bob, 4);
 542                                         }
 543
 544                                         VectorCopy(vieworg, gunorg);
 545
 546                                         if (cl_bob.value && cl_bobmodel.value)
 547                                         {
 548                                                 // calculate for swinging gun model
 549                                                 // the gun bobs when running on the ground, but doesn't bob when you're in the air.
 550                                                 // Sajt: I tried to smooth out the transitions between bob and no bob, which works
 551                                                 // for the most part, but for some reason when you go through a message trigger or
 552                                                 // pick up an item or anything like that it will momentarily jolt the gun.
 553                                                 vec3_t forward, right, up;
 554                                                 float bspeed;
 555                                                 float s;
 556                                                 float t;
 557
 558                                                 s = cl.time * cl_bobmodel_speed.value;
 559                                                 if (cl.onground)
 560                                                 {
 561                                                         if (cl.time - cl.hitgroundtime < 0.2)
 562                                                         {
 563                                                                 // just hit the ground, speed the bob back up over the next 0.2 seconds
 564                                                                 t = cl.time - cl.hitgroundtime;
 565                                                                 t = bound(0, t, 0.2);
 566                                                                 t *= 5;
 567                                                         }
 568                                                         else
 569                                                                 t = 1;
 570                                                 }
 571                                                 else
 572                                                 {
 573                                                         // recently left the ground, slow the bob down over the next 0.2 seconds
 574                                                         t = cl.time - cl.lastongroundtime;
 575                                                         t = 0.2 - bound(0, t, 0.2);
 576                                                         t *= 5;
 577                                                 }
 578
 579                                                 bspeed = bound (0, xyspeed, 400) * 0.01f;
 580                                                 AngleVectors (gunangles, forward, right, up);
 581                                                 bob = bspeed * cl_bobmodel_side.value * cl_viewmodel_scale.value * sin (s) * t;
 582                                                 VectorMA (gunorg, bob, right, gunorg);
 583                                                 bob = bspeed * cl_bobmodel_up.value * cl_viewmodel_scale.value * cos (s * 2) * t;
 584                                                 VectorMA (gunorg, bob, up, gunorg);
 585                                         }
 586
 587                                         // gun model leaning code
 588
 589                                         // TODO 1 (done): Fix bug where model does a 360* turn when YAW jumps around the 0 - 360 rotation border
 590                                         // TODO 2: Implement limits (weapon model must not lean past a certain limit)
 591                                         // TODO 3: Cvar everything once the first TODOs are ready
 592
 593                                         // prevent the gun from doing a 360* rotation when going around the 0 <-> 360 border
 594                                         if(cl.viewangles[YAW] - viewmodel_push_y >= 180)
 595                                                 viewmodel_push_y += 360;
 596                                         if(viewmodel_push_y - cl.viewangles[YAW] >= 180)
 597                                                 viewmodel_push_y -= 360;
 598
 599                                         if(cl.viewangles[PITCH] - viewmodel_push_x >= 180)
 600                                                 viewmodel_push_x += 360;
 601                                         if(viewmodel_push_x - cl.viewangles[PITCH] >= 180)
 602                                                 viewmodel_push_x -= 360;
 603
 604                                         if(viewmodel_push_x < cl.viewangles[PITCH])
 605                                                 viewmodel_push_x += (cl.viewangles[PITCH] - viewmodel_push_x) * 0.01;
 606                                         else if(viewmodel_push_x > cl.viewangles[PITCH])
 607                                                 viewmodel_push_x -= (viewmodel_push_x - cl.viewangles[PITCH]) * 0.01;
 608
 609                                         if(viewmodel_push_y < cl.viewangles[YAW])
 610                                                 viewmodel_push_y += (cl.viewangles[YAW] - viewmodel_push_y) * 0.01;
 611                                         else if(viewmodel_push_y > cl.viewangles[YAW])
 612                                                 viewmodel_push_y -= (viewmodel_push_y - cl.viewangles[YAW]) * 0.01;
 613
 614                                         VectorSet(gunangles, viewmodel_push_x, viewmodel_push_y, viewangles[2]);
 615
 616                                         // void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qboolean flippitch);
 617                                 }
 618                         }
 619                         // calculate a view matrix for rendering the scene
 620                         if (v_idlescale.value)
 621                                 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);
 622                         else
 623                                 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);
 624                         // calculate a viewmodel matrix for use in view-attached entities
 625                         Matrix4x4_CreateFromQuakeEntity(&viewmodelmatrix, gunorg[0], gunorg[1], gunorg[2], gunangles[0], gunangles[1], gunangles[2], cl_viewmodel_scale.value);
 626                         VectorCopy(vieworg, cl.csqc_origin);
 627                         VectorCopy(viewangles, cl.csqc_angles);
 628                 }
 629         }
 630 }
 631
 632 void V_FadeViewFlashs(void)
 633 {
 634         // don't flash if time steps backwards
 635         if (cl.time <= cl.oldtime)
 636                 return;
 637         // drop the damage value
 638         cl.cshifts[CSHIFT_DAMAGE].percent -= (cl.time - cl.oldtime)*cl.cshifts[CSHIFT_DAMAGE].alphafade;
 639         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 640                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 641         // drop the bonus value
 642         cl.cshifts[CSHIFT_BONUS].percent -= (cl.time - cl.oldtime)*cl.cshifts[CSHIFT_BONUS].alphafade;
 643         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 644                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 645 }
 646
 647 void V_CalcViewBlend(void)
 648 {
 649         float a2;
 650         int j;
 651         r_refdef.viewblend[0] = 0;
 652         r_refdef.viewblend[1] = 0;
 653         r_refdef.viewblend[2] = 0;
 654         r_refdef.viewblend[3] = 0;
 655         r_refdef.frustumscale_x = 1;
 656         r_refdef.frustumscale_y = 1;
 657         if (cls.state == ca_connected && cls.signon == SIGNONS)
 658         {
 659                 // set contents color
 660                 int supercontents;
 661                 vec3_t vieworigin;
 662                 Matrix4x4_OriginFromMatrix(&r_refdef.view.matrix, vieworigin);
 663                 supercontents = CL_PointSuperContents(vieworigin);
 664                 if (supercontents & SUPERCONTENTS_LIQUIDSMASK)
 665                 {
 666                         r_refdef.frustumscale_x *= 1 - (((sin(cl.time * 4.7) + 1) * 0.015) * r_waterwarp.value);
 667                         r_refdef.frustumscale_y *= 1 - (((sin(cl.time * 3.0) + 1) * 0.015) * r_waterwarp.value);
 668                         if (supercontents & SUPERCONTENTS_LAVA)
 669                         {
 670                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 255;
 671                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 672                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 673                         }
 674                         else if (supercontents & SUPERCONTENTS_SLIME)
 675                         {
 676                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 677                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 25;
 678                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 5;
 679                         }
 680                         else
 681                         {
 682                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 130;
 683                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 684                                 cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 50;
 685                         }
 686                         cl.cshifts[CSHIFT_CONTENTS].percent = 150 * 0.5;
 687                 }
 688                 else
 689                 {
 690                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 691                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 0;
 692                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 693                         cl.cshifts[CSHIFT_CONTENTS].percent = 0;
 694                 }
 695
 696                 if (gamemode != GAME_TRANSFUSION)
 697                 {
 698                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
 699                         {
 700                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 701                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 702                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 703                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 704                         }
 705                         else if (cl.stats[STAT_ITEMS] & IT_SUIT)
 706                         {
 707                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 708                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 709                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 710                                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 711                         }
 712                         else if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
 713                         {
 714                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 715                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 716                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 717                                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 718                         }
 719                         else if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
 720                         {
 721                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 722                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 723                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 724                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 725                         }
 726                         else
 727                                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 728                 }
 729
 730                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[0] = v_cshift.destcolor[0];
 731                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[1] = v_cshift.destcolor[1];
 732                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[2] = v_cshift.destcolor[2];
 733                 cl.cshifts[CSHIFT_VCSHIFT].percent = v_cshift.percent;
 734
 735                 // LordHavoc: fixed V_CalcBlend
 736                 for (j = 0;j < NUM_CSHIFTS;j++)
 737                 {
 738                         a2 = bound(0.0f, cl.cshifts[j].percent * (1.0f / 255.0f), 1.0f);
 739                         if (a2 > 0)
 740                         {
 741                                 VectorLerp(r_refdef.viewblend, a2, cl.cshifts[j].destcolor, r_refdef.viewblend);
 742                                 r_refdef.viewblend[3] = (1 - (1 - r_refdef.viewblend[3]) * (1 - a2)); // correct alpha multiply...  took a while to find it on the web
 743                         }
 744                 }
 745                 // saturate color (to avoid blending in black)
 746                 if (r_refdef.viewblend[3])
 747                 {
 748                         a2 = 1 / r_refdef.viewblend[3];
 749                         VectorScale(r_refdef.viewblend, a2, r_refdef.viewblend);
 750                 }
 751                 r_refdef.viewblend[0] = bound(0.0f, r_refdef.viewblend[0] * (1.0f/255.0f), 1.0f);
 752                 r_refdef.viewblend[1] = bound(0.0f, r_refdef.viewblend[1] * (1.0f/255.0f), 1.0f);
 753                 r_refdef.viewblend[2] = bound(0.0f, r_refdef.viewblend[2] * (1.0f/255.0f), 1.0f);
 754                 r_refdef.viewblend[3] = bound(0.0f, r_refdef.viewblend[3] * gl_polyblend.value, 1.0f);
 755
 756                 // Samual: Ugly hack, I know. But it's the best we can do since
 757                 // there is no way to detect client states from the engine.
 758                 if (cl.stats[STAT_HEALTH] <= 0 && cl.stats[STAT_HEALTH] != -666 &&
 759                         cl.stats[STAT_HEALTH] != -2342 && cl_deathfade.value > 0)
 760                 {
 761                         cl.deathfade += cl_deathfade.value * max(0.00001, cl.time - cl.oldtime);
 762                         cl.deathfade = bound(0.0f, cl.deathfade, 0.9f);
 763                 }
 764                 else
 765                         cl.deathfade = 0.0f;
 766
 767                 if(cl.deathfade > 0)
 768                 {
 769                         float a;
 770                         float deathfadevec[3] = {0.3f, 0.0f, 0.0f};
 771                         a = r_refdef.viewblend[3] + cl.deathfade - r_refdef.viewblend[3]*cl.deathfade;
 772                         if(a > 0)
 773                                 VectorMAM(r_refdef.viewblend[3] * (1 - cl.deathfade) / a, r_refdef.viewblend, cl.deathfade / a, deathfadevec, r_refdef.viewblend);
 774                         r_refdef.viewblend[3] = a;
 775                 }
 776         }
 777 }
 778
 779 //============================================================================
 780
 781 /*
 782 =============
 783 V_Init
 784 =============
 785 */
 786 void V_Init (void)
 787 {
 788         Cmd_AddCommand ("v_cshift", V_cshift_f, "sets tint color of view");
 789         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");
 790         Cmd_AddCommand ("centerview", V_StartPitchDrift, "gradually recenter view (stop looking up/down)");
 791
 792         Cvar_RegisterVariable (&v_centermove);
 793         Cvar_RegisterVariable (&v_centerspeed);
 794
 795         Cvar_RegisterVariable (&v_iyaw_cycle);
 796         Cvar_RegisterVariable (&v_iroll_cycle);
 797         Cvar_RegisterVariable (&v_ipitch_cycle);
 798         Cvar_RegisterVariable (&v_iyaw_level);
 799         Cvar_RegisterVariable (&v_iroll_level);
 800         Cvar_RegisterVariable (&v_ipitch_level);
 801
 802         Cvar_RegisterVariable (&v_idlescale);
 803         Cvar_RegisterVariable (&crosshair);
 804
 805         Cvar_RegisterVariable (&cl_rollspeed);
 806         Cvar_RegisterVariable (&cl_rollangle);
 807         Cvar_RegisterVariable (&cl_bob);
 808         Cvar_RegisterVariable (&cl_bobcycle);
 809         Cvar_RegisterVariable (&cl_bobup);
 810         Cvar_RegisterVariable (&cl_bobmodel);
 811         Cvar_RegisterVariable (&cl_bobmodel_side);
 812         Cvar_RegisterVariable (&cl_bobmodel_up);
 813         Cvar_RegisterVariable (&cl_bobmodel_speed);
 814
 815         Cvar_RegisterVariable (&cl_viewmodel_scale);
 816
 817         Cvar_RegisterVariable (&v_kicktime);
 818         Cvar_RegisterVariable (&v_kickroll);
 819         Cvar_RegisterVariable (&v_kickpitch);
 820
 821         Cvar_RegisterVariable (&cl_stairsmoothspeed);
 822
 823         Cvar_RegisterVariable (&chase_back);
 824         Cvar_RegisterVariable (&chase_up);
 825         Cvar_RegisterVariable (&chase_active);
 826         Cvar_RegisterVariable (&chase_overhead);
 827         Cvar_RegisterVariable (&chase_pitchangle);
 828         if (gamemode == GAME_GOODVSBAD2)
 829                 Cvar_RegisterVariable (&chase_stevie);
 830
 831         Cvar_RegisterVariable (&v_deathtilt);
 832         Cvar_RegisterVariable (&v_deathtiltangle);
 833 }
 834