cl_main.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 // cl_main.c  -- client main loop
  21
  22 #include "quakedef.h"
  23 #include "cl_collision.h"
  24 #include "cl_video.h"
  25
  26 // we need to declare some mouse variables here, because the menu system
  27 // references them even when on a unix system.
  28
  29 // these two are not intended to be set directly
  30 cvar_t cl_name = {CVAR_SAVE, "_cl_name", "player"};
  31 cvar_t cl_color = {CVAR_SAVE, "_cl_color", "0"};
  32 cvar_t cl_pmodel = {CVAR_SAVE, "_cl_pmodel", "0"};
  33
  34 cvar_t cl_shownet = {0, "cl_shownet","0"};
  35 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
  36
  37 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
  38 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
  39
  40 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
  41 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
  42 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
  43
  44 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
  45 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
  46 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
  47 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
  48
  49 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
  50
  51 cvar_t r_draweffects = {0, "r_draweffects", "1"};
  52
  53 cvar_t cl_explosions = {CVAR_SAVE, "cl_explosions", "1"};
  54 cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
  55
  56 mempool_t *cl_scores_mempool;
  57 mempool_t *cl_refdef_mempool;
  58
  59 client_static_t cls;
  60 client_state_t  cl;
  61 // FIXME: put these on hunk?
  62 entity_t                cl_entities[MAX_EDICTS];
  63 entity_t                cl_static_entities[MAX_STATIC_ENTITIES];
  64 lightstyle_t    cl_lightstyle[MAX_LIGHTSTYLES];
  65
  66 typedef struct effect_s
  67 {
  68         int active;
  69         vec3_t origin;
  70         float starttime;
  71         float framerate;
  72         int modelindex;
  73         int startframe;
  74         int endframe;
  75         // these are for interpolation
  76         int frame;
  77         double frame1time;
  78         double frame2time;
  79 }
  80 cl_effect_t;
  81
  82 #define MAX_EFFECTS 256
  83
  84 static cl_effect_t cl_effect[MAX_EFFECTS];
  85
  86
  87 /*
  88 =====================
  89 CL_ClearState
  90
  91 =====================
  92 */
  93 void CL_ClearState (void)
  94 {
  95         int                     i;
  96
  97         if (!sv.active)
  98                 Host_ClearMemory ();
  99
 100         Mem_EmptyPool(cl_scores_mempool);
 101
 102 // wipe the entire cl structure
 103         memset (&cl, 0, sizeof(cl));
 104
 105         SZ_Clear (&cls.message);
 106
 107 // clear other arrays
 108         memset(cl_entities, 0, sizeof(cl_entities));
 109         memset(cl_lightstyle, 0, sizeof(cl_lightstyle));
 110         memset(cl_temp_entities, 0, sizeof(cl_temp_entities));
 111         memset(cl_beams, 0, sizeof(cl_beams));
 112         memset(cl_dlights, 0, sizeof(cl_dlights));
 113         memset(cl_effect, 0, sizeof(cl_effect));
 114         CL_Screen_NewMap();
 115         CL_Particles_Clear();
 116         // LordHavoc: have to set up the baseline info for alpha and other stuff
 117         for (i = 0;i < MAX_EDICTS;i++)
 118         {
 119                 ClearStateToDefault(&cl_entities[i].state_baseline);
 120                 ClearStateToDefault(&cl_entities[i].state_previous);
 121                 ClearStateToDefault(&cl_entities[i].state_current);
 122         }
 123
 124         CL_CGVM_Clear();
 125 }
 126
 127 void CL_LerpUpdate(entity_t *e)
 128 {
 129         entity_persistent_t *p;
 130         entity_render_t *r;
 131         p = &e->persistent;
 132         r = &e->render;
 133
 134         if (p->modelindex != e->state_current.modelindex)
 135         {
 136                 // reset all interpolation information
 137                 p->modelindex = e->state_current.modelindex;
 138                 p->frame1 = p->frame2 = e->state_current.frame;
 139                 p->frame1time = p->frame2time = cl.time;
 140                 p->framelerp = 1;
 141         }
 142         else if (p->frame2 != e->state_current.frame)
 143         {
 144                 // transition to new frame
 145                 p->frame1 = p->frame2;
 146                 p->frame1time = p->frame2time;
 147                 p->frame2 = e->state_current.frame;
 148                 p->frame2time = cl.time;
 149                 p->framelerp = 0;
 150         }
 151         else
 152         {
 153                 // update transition
 154                 p->framelerp = (cl.time - p->frame2time) * 10;
 155                 p->framelerp = bound(0, p->framelerp, 1);
 156         }
 157
 158         r->model = cl.model_precache[e->state_current.modelindex];
 159         Mod_CheckLoaded(r->model);
 160         r->frame = e->state_current.frame;
 161         r->frame1 = p->frame1;
 162         r->frame2 = p->frame2;
 163         r->framelerp = p->framelerp;
 164         r->frame1time = p->frame1time;
 165         r->frame2time = p->frame2time;
 166 }
 167
 168 /*
 169 =====================
 170 CL_Disconnect
 171
 172 Sends a disconnect message to the server
 173 This is also called on Host_Error, so it shouldn't cause any errors
 174 =====================
 175 */
 176 void CL_Disconnect (void)
 177 {
 178         if (cls.state == ca_dedicated)
 179                 return;
 180
 181 // stop sounds (especially looping!)
 182         S_StopAllSounds (true);
 183
 184         // clear contents blends
 185         cl.cshifts[0].percent = 0;
 186         cl.cshifts[1].percent = 0;
 187         cl.cshifts[2].percent = 0;
 188         cl.cshifts[3].percent = 0;
 189
 190         cl.worldmodel = NULL;
 191
 192         if (cls.demoplayback)
 193                 CL_StopPlayback ();
 194         else if (cls.state == ca_connected)
 195         {
 196                 if (cls.demorecording)
 197                         CL_Stop_f ();
 198
 199                 Con_DPrintf ("Sending clc_disconnect\n");
 200                 SZ_Clear (&cls.message);
 201                 MSG_WriteByte (&cls.message, clc_disconnect);
 202                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 203                 SZ_Clear (&cls.message);
 204                 NET_Close (cls.netcon);
 205                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
 206                 // if running a local server, shut it down
 207                 if (sv.active)
 208                         Host_ShutdownServer(false);
 209         }
 210         cls.state = ca_disconnected;
 211
 212         cls.demoplayback = cls.timedemo = false;
 213         cls.signon = 0;
 214 }
 215
 216 void CL_Disconnect_f (void)
 217 {
 218         CL_Disconnect ();
 219         if (sv.active)
 220                 Host_ShutdownServer (false);
 221 }
 222
 223
 224
 225
 226 /*
 227 =====================
 228 CL_EstablishConnection
 229
 230 Host should be either "local" or a net address to be passed on
 231 =====================
 232 */
 233 void CL_EstablishConnection (char *host)
 234 {
 235         if (cls.state == ca_dedicated)
 236                 return;
 237
 238         if (cls.demoplayback)
 239                 return;
 240
 241         CL_Disconnect ();
 242
 243         cls.netcon = NET_Connect (host);
 244         if (!cls.netcon)
 245                 Host_Error ("CL_Connect: connect failed\n");
 246         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 247
 248         cls.demonum = -1;                       // not in the demo loop now
 249         cls.state = ca_connected;
 250         cls.signon = 0;                         // need all the signon messages before playing
 251
 252         CL_ClearState ();
 253 }
 254
 255 /*
 256 ==============
 257 CL_PrintEntities_f
 258 ==============
 259 */
 260 static void CL_PrintEntities_f (void)
 261 {
 262         entity_t        *ent;
 263         int                     i, j;
 264         char            name[32];
 265
 266         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 267         {
 268                 if (!ent->state_current.active)
 269                         continue;
 270                 if (!ent->render.model)
 271                         continue;
 272
 273                 Con_Printf ("%3i:", i);
 274                 if (!ent->render.model)
 275                 {
 276                         Con_Printf ("EMPTY\n");
 277                         continue;
 278                 }
 279                 strncpy(name, ent->render.model->name, 25);
 280                 name[25] = 0;
 281                 for (j = strlen(name);j < 25;j++)
 282                         name[j] = ' ';
 283                 Con_Printf ("%s:%04i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", name, ent->render.frame, (int) ent->render.origin[0], (int) ent->render.origin[1], (int) ent->render.origin[2], (int) ent->render.angles[0] % 360, (int) ent->render.angles[1] % 360, (int) ent->render.angles[2] % 360, ent->render.scale, ent->render.alpha);
 284         }
 285 }
 286
 287
 288 /*
 289 ===============
 290 CL_LerpPoint
 291
 292 Determines the fraction between the last two messages that the objects
 293 should be put at.
 294 ===============
 295 */
 296 static float CL_LerpPoint (void)
 297 {
 298         float   f;
 299
 300         // dropped packet, or start of demo
 301         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 302                 cl.mtime[1] = cl.mtime[0] - 0.1;
 303
 304         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 305
 306         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 307         f = cl.mtime[0] - cl.mtime[1];
 308         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 309         {
 310                 cl.time = cl.mtime[0];
 311                 return 1;
 312         }
 313
 314         f = (cl.time - cl.mtime[1]) / f;
 315         return bound(0, f, 1);
 316 }
 317
 318 static void CL_RelinkStaticEntities(void)
 319 {
 320         int i;
 321         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 322         {
 323                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 324                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 325         }
 326 }
 327
 328 /*
 329 ===============
 330 CL_RelinkEntities
 331 ===============
 332 */
 333 static void CL_RelinkNetworkEntities()
 334 {
 335         entity_t        *ent;
 336         int                     i, glowcolor, effects;
 337         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 338         vec3_t          oldorg, neworg, delta, dlightcolor;
 339
 340         bobjrotate = ANGLEMOD(100*cl.time);
 341         if (cl_itembobheight.value)
 342                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 343         else
 344                 bobjoffset = 0;
 345
 346 // start on the entity after the world
 347         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 348         {
 349                 // if the object wasn't included in the latest packet, remove it
 350                 if (!ent->state_current.active)
 351                         continue;
 352
 353                 VectorCopy(ent->persistent.trail_origin, oldorg);
 354
 355                 if (!ent->state_previous.active)
 356                 {
 357                         // only one state available
 358                         lerp = 1;
 359                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 360                         VectorCopy (ent->state_current.origin, neworg);
 361                         VectorCopy (ent->state_current.angles, ent->render.angles);
 362                 }
 363                 else
 364                 {
 365                         // if the delta is large, assume a teleport and don't lerp
 366                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 367                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 368                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 369                                 lerp = 1;
 370                         else
 371                         {
 372                                 f = ent->state_current.time - ent->state_previous.time;
 373                                 if (f > 0)
 374                                         lerp = (cl.time - ent->state_previous.time) / f;
 375                                 else
 376                                         lerp = 1;
 377                         }
 378                         if (lerp >= 1)
 379                         {
 380                                 // no interpolation
 381                                 VectorCopy (ent->state_current.origin, neworg);
 382                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 383                         }
 384                         else
 385                         {
 386                                 // interpolate the origin and angles
 387                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 388                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 389                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 390                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 391                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 392                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 393                         }
 394                 }
 395
 396                 VectorCopy (neworg, ent->persistent.trail_origin);
 397                 // persistent.modelindex will be updated by CL_LerpUpdate
 398                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 399                         VectorCopy(neworg, oldorg);
 400
 401                 VectorCopy (neworg, ent->render.origin);
 402                 ent->render.flags = ent->state_current.flags;
 403                 ent->render.effects = effects = ent->state_current.effects;
 404                 if (cl.scores == NULL || !ent->state_current.colormap)
 405                         ent->render.colormap = -1; // no special coloring
 406                 else
 407                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 408                 ent->render.skinnum = ent->state_current.skin;
 409                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 410                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 411
 412                 // update interpolation info
 413                 CL_LerpUpdate(ent);
 414
 415                 // handle effects now...
 416                 dlightradius = 0;
 417                 dlightcolor[0] = 0;
 418                 dlightcolor[1] = 0;
 419                 dlightcolor[2] = 0;
 420
 421                 // LordHavoc: if the entity has no effects, don't check each
 422                 if (effects)
 423                 {
 424                         if (effects & EF_BRIGHTFIELD)
 425                                 CL_EntityParticles (ent);
 426                         if (effects & EF_MUZZLEFLASH)
 427                                 ent->persistent.muzzleflash = 100.0f;
 428                         if (effects & EF_DIMLIGHT)
 429                         {
 430                                 dlightcolor[0] += 200.0f;
 431                                 dlightcolor[1] += 200.0f;
 432                                 dlightcolor[2] += 200.0f;
 433                         }
 434                         if (effects & EF_BRIGHTLIGHT)
 435                         {
 436                                 dlightcolor[0] += 400.0f;
 437                                 dlightcolor[1] += 400.0f;
 438                                 dlightcolor[2] += 400.0f;
 439                         }
 440                         // LordHavoc: added EF_RED and EF_BLUE
 441                         if (effects & EF_RED) // red
 442                         {
 443                                 dlightcolor[0] += 200.0f;
 444                                 dlightcolor[1] +=  20.0f;
 445                                 dlightcolor[2] +=  20.0f;
 446                         }
 447                         if (effects & EF_BLUE) // blue
 448                         {
 449                                 dlightcolor[0] +=  20.0f;
 450                                 dlightcolor[1] +=  20.0f;
 451                                 dlightcolor[2] += 200.0f;
 452                         }
 453                         if (effects & EF_FLAME)
 454                         {
 455                                 if (ent->render.model)
 456                                 {
 457                                         vec3_t mins, maxs;
 458                                         int temp;
 459                                         mins[0] = neworg[0] - 16.0f;
 460                                         mins[1] = neworg[1] - 16.0f;
 461                                         mins[2] = neworg[2] - 16.0f;
 462                                         maxs[0] = neworg[0] + 16.0f;
 463                                         maxs[1] = neworg[1] + 16.0f;
 464                                         maxs[2] = neworg[2] + 16.0f;
 465                                         // how many flames to make
 466                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 467                                         CL_FlameCube(mins, maxs, temp);
 468                                 }
 469                                 d = lhrandom(200, 250);
 470                                 dlightcolor[0] += d * 1.0f;
 471                                 dlightcolor[1] += d * 0.7f;
 472                                 dlightcolor[2] += d * 0.3f;
 473                         }
 474                         if (effects & EF_STARDUST)
 475                         {
 476                                 if (ent->render.model)
 477                                 {
 478                                         vec3_t mins, maxs;
 479                                         int temp;
 480                                         mins[0] = neworg[0] - 16.0f;
 481                                         mins[1] = neworg[1] - 16.0f;
 482                                         mins[2] = neworg[2] - 16.0f;
 483                                         maxs[0] = neworg[0] + 16.0f;
 484                                         maxs[1] = neworg[1] + 16.0f;
 485                                         maxs[2] = neworg[2] + 16.0f;
 486                                         // how many particles to make
 487                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 488                                         CL_Stardust(mins, maxs, temp);
 489                                 }
 490                                 d = 100;
 491                                 dlightcolor[0] += d * 1.0f;
 492                                 dlightcolor[1] += d * 0.7f;
 493                                 dlightcolor[2] += d * 0.3f;
 494                         }
 495                 }
 496
 497                 if (ent->persistent.muzzleflash > 0)
 498                 {
 499                         vec3_t v, v2;
 500
 501                         AngleVectors (ent->render.angles, v, NULL, NULL);
 502
 503                         v2[0] = v[0] * 18 + neworg[0];
 504                         v2[1] = v[1] * 18 + neworg[1];
 505                         v2[2] = v[2] * 18 + neworg[2] + 16;
 506                         CL_TraceLine(neworg, v2, v, NULL, 0, true);
 507
 508                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
 509                         ent->persistent.muzzleflash -= cl.frametime * 1000;
 510                 }
 511
 512                 // LordHavoc: if the model has no flags, don't check each
 513                 if (ent->render.model && ent->render.model->flags)
 514                 {
 515                         if (ent->render.model->flags & EF_ROTATE)
 516                         {
 517                                 ent->render.angles[1] = bobjrotate;
 518                                 ent->render.origin[2] += bobjoffset;
 519                         }
 520                         // only do trails if present in the previous frame as well
 521                         if (ent->state_previous.active)
 522                         {
 523                                 if (ent->render.model->flags & EF_GIB)
 524                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 525                                 else if (ent->render.model->flags & EF_ZOMGIB)
 526                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 527                                 else if (ent->render.model->flags & EF_TRACER)
 528                                 {
 529                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 530                                         dlightcolor[0] += 0x10;
 531                                         dlightcolor[1] += 0x40;
 532                                         dlightcolor[2] += 0x10;
 533                                 }
 534                                 else if (ent->render.model->flags & EF_TRACER2)
 535                                 {
 536                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 537                                         dlightcolor[0] += 0x50;
 538                                         dlightcolor[1] += 0x30;
 539                                         dlightcolor[2] += 0x10;
 540                                 }
 541                                 else if (ent->render.model->flags & EF_ROCKET)
 542                                 {
 543                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 544                                         dlightcolor[0] += 200.0f;
 545                                         dlightcolor[1] += 160.0f;
 546                                         dlightcolor[2] +=  80.0f;
 547                                 }
 548                                 else if (ent->render.model->flags & EF_GRENADE)
 549                                 {
 550                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 551                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 552                                         else
 553                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 554                                 }
 555                                 else if (ent->render.model->flags & EF_TRACER3)
 556                                 {
 557                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 558                                         dlightcolor[0] += 0x50;
 559                                         dlightcolor[1] += 0x20;
 560                                         dlightcolor[2] += 0x40;
 561                                 }
 562                         }
 563                 }
 564                 // LordHavoc: customizable glow
 565                 glowsize = ent->state_current.glowsize; // FIXME: interpolate?
 566                 glowcolor = ent->state_current.glowcolor;
 567                 if (glowsize)
 568                 {
 569                         qbyte *tempcolor = (qbyte *)&d_8to24table[glowcolor];
 570                         // * 4 for the expansion from 0-255 to 0-1023 range,
 571                         // / 255 to scale down byte colors
 572                         glowsize *= (4.0f / 255.0f);
 573                         VectorMA(dlightcolor, glowsize, tempcolor, dlightcolor);
 574                 }
 575                 // LordHavoc: customizable trail
 576                 if (ent->render.flags & RENDER_GLOWTRAIL)
 577                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 578
 579                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 580                 {
 581                         vec3_t vec;
 582                         VectorCopy(neworg, vec);
 583                         // hack to make glowing player light shine on their gun
 584                         if (i == cl.viewentity && !chase_active.integer)
 585                                 vec[2] += 30;
 586                         CL_AllocDlight (NULL, vec, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 587                 }
 588
 589                 if (chase_active.integer)
 590                 {
 591                         if (ent->render.flags & RENDER_VIEWMODEL)
 592                                 continue;
 593                 }
 594                 else
 595                 {
 596                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 597                                 continue;
 598                 }
 599
 600                 if (ent->render.model == NULL)
 601                         continue;
 602                 if (effects & EF_NODRAW)
 603                         continue;
 604                 if (r_refdef.numentities < MAX_VISEDICTS)
 605                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 606         }
 607 }
 608
 609 void CL_LerpPlayer(float frac)
 610 {
 611         int i;
 612         float d;
 613
 614         if (cl.entitydatabase.numframes)
 615         {
 616                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 617                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 618                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 619         }
 620         else
 621                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 622
 623         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 624
 625         for (i = 0;i < 3;i++)
 626                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 627
 628         if (cls.demoplayback)
 629         {
 630                 // interpolate the angles
 631                 for (i = 0;i < 3;i++)
 632                 {
 633                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 634                         if (d > 180)
 635                                 d -= 360;
 636                         else if (d < -180)
 637                                 d += 360;
 638                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 639                 }
 640         }
 641 }
 642
 643 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 644 {
 645         int i;
 646         cl_effect_t *e;
 647         if (!modelindex) // sanity check
 648                 return;
 649         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 650         {
 651                 if (e->active)
 652                         continue;
 653                 e->active = true;
 654                 VectorCopy(org, e->origin);
 655                 e->modelindex = modelindex;
 656                 e->starttime = cl.time;
 657                 e->startframe = startframe;
 658                 e->endframe = startframe + framecount;
 659                 e->framerate = framerate;
 660
 661                 e->frame = 0;
 662                 e->frame1time = cl.time;
 663                 e->frame2time = cl.time;
 664                 break;
 665         }
 666 }
 667
 668 static void CL_RelinkEffects()
 669 {
 670         int i, intframe;
 671         cl_effect_t *e;
 672         entity_t *vis;
 673         float frame;
 674
 675         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 676         {
 677                 if (e->active)
 678                 {
 679                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 680                         intframe = frame;
 681                         if (intframe < 0 || intframe >= e->endframe)
 682                         {
 683                                 e->active = false;
 684                                 memset(e, 0, sizeof(*e));
 685                                 continue;
 686                         }
 687
 688                         if (intframe != e->frame)
 689                         {
 690                                 e->frame = intframe;
 691                                 e->frame1time = e->frame2time;
 692                                 e->frame2time = cl.time;
 693                         }
 694
 695                         if (r_draweffects.integer && (vis = CL_NewTempEntity()))
 696                         {
 697                                 // interpolation stuff
 698                                 vis->render.frame1 = intframe;
 699                                 vis->render.frame2 = intframe + 1;
 700                                 if (vis->render.frame2 >= e->endframe)
 701                                         vis->render.frame2 = -1; // disappear
 702                                 vis->render.framelerp = frame - intframe;
 703                                 vis->render.frame1time = e->frame1time;
 704                                 vis->render.frame2time = e->frame2time;
 705
 706                                 // normal stuff
 707                                 VectorCopy(e->origin, vis->render.origin);
 708                                 vis->render.model = cl.model_precache[e->modelindex];
 709                                 vis->render.frame = vis->render.frame2;
 710                                 vis->render.colormap = -1; // no special coloring
 711                                 vis->render.scale = 1;
 712                                 vis->render.alpha = 1;
 713                         }
 714                 }
 715         }
 716 }
 717
 718 void CL_RelinkEntities (void)
 719 {
 720         float frac;
 721
 722         // fraction from previous network update to current
 723         frac = CL_LerpPoint ();
 724
 725         CL_DecayLights ();
 726         CL_RelinkStaticEntities();
 727         CL_RelinkNetworkEntities();
 728         CL_TraceLine_ScanForBModels();
 729         CL_RelinkEffects();
 730         CL_MoveParticles();
 731         CL_UpdateTEnts();
 732
 733         CL_LerpPlayer(frac);
 734 }
 735
 736
 737 /*
 738 ===============
 739 CL_ReadFromServer
 740
 741 Read all incoming data from the server
 742 ===============
 743 */
 744 int CL_ReadFromServer (void)
 745 {
 746         int ret, netshown;
 747
 748         cl.oldtime = cl.time;
 749         cl.time += cl.frametime;
 750
 751         netshown = false;
 752         do
 753         {
 754                 ret = CL_GetMessage ();
 755                 if (ret == -1)
 756                         Host_Error ("CL_ReadFromServer: lost server connection");
 757                 if (!ret)
 758                         break;
 759
 760                 cl.last_received_message = realtime;
 761
 762                 if (cl_shownet.integer)
 763                         netshown = true;
 764
 765                 CL_ParseServerMessage ();
 766         }
 767         while (ret && cls.state == ca_connected);
 768
 769         if (netshown)
 770                 Con_Printf ("\n");
 771
 772         r_refdef.numentities = 0;
 773         if (cls.state == ca_connected && cl.worldmodel)
 774         {
 775                 CL_RelinkEntities ();
 776
 777                 // run cgame code (which can add more entities)
 778                 CL_CGVM_Frame();
 779         }
 780
 781 //
 782 // bring the links up to date
 783 //
 784         return 0;
 785 }
 786
 787 /*
 788 =================
 789 CL_SendCmd
 790 =================
 791 */
 792 void CL_SendCmd (void)
 793 {
 794         usercmd_t               cmd;
 795
 796         if (cls.state != ca_connected)
 797                 return;
 798
 799         if (cls.signon == SIGNONS)
 800         {
 801         // get basic movement from keyboard
 802                 CL_BaseMove (&cmd);
 803
 804                 IN_PreMove(); // OS independent code
 805
 806         // allow mice or other external controllers to add to the move
 807                 IN_Move (&cmd);
 808
 809                 IN_PostMove(); // OS independent code
 810
 811         // send the unreliable message
 812                 CL_SendMove (&cmd);
 813         }
 814 #ifndef NOROUTINGFIX
 815         else
 816         {
 817                 // LordHavoc: fix for NAT routing of netquake:
 818                 // bounce back a clc_nop message to the newly allocated server port,
 819                 // to establish a routing connection for incoming frames,
 820                 // the server waits for this before sending anything
 821                 if (realtime > cl.sendnoptime)
 822                 {
 823                         Con_DPrintf("sending clc_nop to get server's attention\n");
 824                         cl.sendnoptime = realtime + 3;
 825                         MSG_WriteByte(&cls.message, clc_nop);
 826                 }
 827         }
 828 #endif
 829
 830         if (cls.demoplayback)
 831         {
 832                 SZ_Clear (&cls.message);
 833                 return;
 834         }
 835
 836 // send the reliable message
 837         if (!cls.message.cursize)
 838                 return;         // no message at all
 839
 840         if (!NET_CanSendMessage (cls.netcon))
 841         {
 842                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 843                 return;
 844         }
 845
 846         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 847                 Host_Error ("CL_WriteToServer: lost server connection");
 848
 849         SZ_Clear (&cls.message);
 850 }
 851
 852 // LordHavoc: pausedemo command
 853 static void CL_PauseDemo_f (void)
 854 {
 855         cls.demopaused = !cls.demopaused;
 856         if (cls.demopaused)
 857                 Con_Printf("Demo paused\n");
 858         else
 859                 Con_Printf("Demo unpaused\n");
 860 }
 861
 862 /*
 863 ======================
 864 CL_PModel_f
 865 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 866 ======================
 867 */
 868 static void CL_PModel_f (void)
 869 {
 870         int i;
 871         eval_t *val;
 872
 873         if (Cmd_Argc () == 1)
 874         {
 875                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 876                 return;
 877         }
 878         i = atoi(Cmd_Argv(1));
 879
 880         if (cmd_source == src_command)
 881         {
 882                 if (cl_pmodel.integer == i)
 883                         return;
 884                 Cvar_SetValue ("_cl_pmodel", i);
 885                 if (cls.state == ca_connected)
 886                         Cmd_ForwardToServer ();
 887                 return;
 888         }
 889
 890         host_client->pmodel = i;
 891         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 892                 val->_float = i;
 893 }
 894
 895 /*
 896 ======================
 897 CL_Fog_f
 898 ======================
 899 */
 900 static void CL_Fog_f (void)
 901 {
 902         if (Cmd_Argc () == 1)
 903         {
 904                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 905                 return;
 906         }
 907         fog_density = atof(Cmd_Argv(1));
 908         fog_red = atof(Cmd_Argv(2));
 909         fog_green = atof(Cmd_Argv(3));
 910         fog_blue = atof(Cmd_Argv(4));
 911 }
 912
 913 /*
 914 =================
 915 CL_Init
 916 =================
 917 */
 918 void CL_Init (void)
 919 {
 920         cl_scores_mempool = Mem_AllocPool("client player info");
 921
 922         cl_refdef_mempool = Mem_AllocPool("refdef");
 923         memset(&r_refdef, 0, sizeof(r_refdef));
 924         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 925
 926         SZ_Alloc (&cls.message, 1024, "cls.message");
 927
 928         CL_InitInput ();
 929         CL_InitTEnts ();
 930
 931 //
 932 // register our commands
 933 //
 934         Cvar_RegisterVariable (&cl_name);
 935         Cvar_RegisterVariable (&cl_color);
 936         if (gamemode == GAME_NEHAHRA)
 937                 Cvar_RegisterVariable (&cl_pmodel);
 938         Cvar_RegisterVariable (&cl_upspeed);
 939         Cvar_RegisterVariable (&cl_forwardspeed);
 940         Cvar_RegisterVariable (&cl_backspeed);
 941         Cvar_RegisterVariable (&cl_sidespeed);
 942         Cvar_RegisterVariable (&cl_movespeedkey);
 943         Cvar_RegisterVariable (&cl_yawspeed);
 944         Cvar_RegisterVariable (&cl_pitchspeed);
 945         Cvar_RegisterVariable (&cl_anglespeedkey);
 946         Cvar_RegisterVariable (&cl_shownet);
 947         Cvar_RegisterVariable (&cl_nolerp);
 948         Cvar_RegisterVariable (&lookspring);
 949         Cvar_RegisterVariable (&lookstrafe);
 950         Cvar_RegisterVariable (&sensitivity);
 951         Cvar_RegisterVariable (&freelook);
 952
 953         Cvar_RegisterVariable (&m_pitch);
 954         Cvar_RegisterVariable (&m_yaw);
 955         Cvar_RegisterVariable (&m_forward);
 956         Cvar_RegisterVariable (&m_side);
 957
 958         Cvar_RegisterVariable (&cl_itembobspeed);
 959         Cvar_RegisterVariable (&cl_itembobheight);
 960
 961         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 962         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 963         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 964         Cmd_AddCommand ("record", CL_Record_f);
 965         Cmd_AddCommand ("stop", CL_Stop_f);
 966         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 967         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 968
 969         Cmd_AddCommand ("fog", CL_Fog_f);
 970
 971         // LordHavoc: added pausedemo
 972         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 973         if (gamemode == GAME_NEHAHRA)
 974                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 975
 976         Cvar_RegisterVariable(&r_draweffects);
 977         Cvar_RegisterVariable(&cl_explosions);
 978         Cvar_RegisterVariable(&cl_stainmaps);
 979
 980         CL_Parse_Init();
 981         CL_Particles_Init();
 982         CL_Screen_Init();
 983         CL_CGVM_Init();
 984
 985         CL_Video_Init();
 986 }
 987