qcsrc/lib/csqcmodel/cl_player.qc

   1 /*
   2  * Copyright (c) 2011 Rudolf Polzer
   3  * Copyright (c) 2015 Micah Talkiewicz
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to
   7  * deal in the Software without restriction, including without limitation the
   8  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   9  * sell copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23 #include "cl_player.qh"
  24
  25 #include "cl_model.qh"
  26 #include "common.qh"
  27 #include "interpolate.qh"
  28 #include <client/defs.qh>
  29 #include <client/main.qh>
  30 #include <common/constants.qh>
  31 #include <common/physics/player.qh>
  32 #include <common/stats.qh>
  33 #include <common/triggers/trigger/viewloc.qh>
  34 #include <common/util.qh>
  35 #include <common/viewloc.qh>
  36
  37 float autocvar_cl_movement_errorcompensation = 0;
  38
  39 // engine stuff
  40 float pmove_onground; // weird engine flag we shouldn't really use but have to for now
  41
  42 vector csqcplayer_origin, csqcplayer_velocity;
  43 float csqcplayer_sequence;
  44 int player_pmflags;
  45 float csqcplayer_moveframe;
  46 vector csqcplayer_predictionerroro;
  47 vector csqcplayer_predictionerrorv;
  48 float csqcplayer_predictionerrortime;
  49 float csqcplayer_predictionerrorfactor;
  50
  51 vector CSQCPlayer_GetPredictionErrorO()
  52 {
  53         if (time >= csqcplayer_predictionerrortime) return '0 0 0';
  54         return csqcplayer_predictionerroro * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
  55 }
  56
  57 vector CSQCPlayer_GetPredictionErrorV()
  58 {
  59         if (time >= csqcplayer_predictionerrortime) return '0 0 0';
  60         return csqcplayer_predictionerrorv * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
  61 }
  62
  63 void CSQCPlayer_SetPredictionError(vector o, vector v, float onground_diff)
  64 {
  65         // error too big to compensate, we LIKELY hit a teleport or a
  66         // jumppad, or it's a jump time disagreement that'll get fixed
  67         // next frame
  68
  69         // FIXME we sometimes have disagreement in order of jump velocity. Do not act on them!
  70         /*
  71         // commented out as this one did not help
  72         if(onground_diff)
  73         {
  74                 printf("ONGROUND MISMATCH: %d x=%v v=%v\n", onground_diff, o, v);
  75                 return;
  76         }
  77         */
  78         if(vdist(o, >, 32) || vdist(v, >, 192))
  79         {
  80                 //printf("TOO BIG: x=%v v=%v\n", o, v);
  81                 return;
  82         }
  83
  84         if(!autocvar_cl_movement_errorcompensation)
  85         {
  86                 csqcplayer_predictionerrorfactor = 0;
  87                 return;
  88         }
  89
  90         csqcplayer_predictionerroro = CSQCPlayer_GetPredictionErrorO() + o;
  91         csqcplayer_predictionerrorv = CSQCPlayer_GetPredictionErrorV() + v;
  92         csqcplayer_predictionerrorfactor = autocvar_cl_movement_errorcompensation / ticrate;
  93         csqcplayer_predictionerrortime = time + 1.0 / csqcplayer_predictionerrorfactor;
  94 }
  95
  96 void CSQCPlayer_Unpredict(entity this)
  97 {
  98         if (csqcplayer_status == CSQCPLAYERSTATUS_UNPREDICTED) return;
  99         if (csqcplayer_status != CSQCPLAYERSTATUS_PREDICTED) LOG_FATALF("Cannot unpredict in current status (%d)\n", csqcplayer_status);
 100         this.origin = csqcplayer_origin;
 101         this.velocity = csqcplayer_velocity;
 102         csqcplayer_moveframe = csqcplayer_sequence + 1; // + 1 because the recieved frame has the move already done (server side)
 103         this.flags = player_pmflags;
 104 }
 105
 106 void CSQCPlayer_SetMinsMaxs(entity this)
 107 {
 108         if ((this.flags & FL_DUCKED) || !this.isplayermodel)
 109         {
 110                 this.mins = STAT(PL_CROUCH_MIN, NULL);
 111                 this.maxs = STAT(PL_CROUCH_MAX, NULL);
 112                 this.view_ofs = STAT(PL_CROUCH_VIEW_OFS, NULL);
 113         }
 114         else
 115         {
 116                 this.mins = STAT(PL_MIN, NULL);
 117                 this.maxs = STAT(PL_MAX, NULL);
 118                 this.view_ofs = STAT(PL_VIEW_OFS, NULL);
 119         }
 120 }
 121
 122 void CSQCPlayer_SavePrediction(entity this)
 123 {
 124         player_pmflags = this.flags;
 125         csqcplayer_origin = this.origin;
 126         csqcplayer_velocity = this.velocity;
 127         csqcplayer_sequence = servercommandframe;
 128         csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
 129 }
 130
 131 void CSQC_ClientMovement_PlayerMove_Frame(entity this);
 132 void _Movetype_Physics_ClientFrame(entity this, float movedt);
 133
 134 void Movetype_Physics_Spam(entity this)  // optimized
 135 {
 136         _Movetype_Physics_ClientFrame(this, PHYS_INPUT_TIMELENGTH);
 137         if(wasfreed(this))
 138                 return;
 139
 140         this.avelocity = this.move_avelocity;
 141         this.velocity = this.move_velocity;
 142         this.angles = this.move_angles;
 143         this.flags = BITSET(this.flags, FL_ONGROUND, boolean(this.move_flags & FL_ONGROUND));
 144         this.flags = BITSET(this.flags, FL_WATERJUMP, boolean(this.move_flags & FL_WATERJUMP));
 145         this.waterlevel = this.move_waterlevel;
 146         this.watertype = this.move_watertype;
 147         setorigin(this, this.move_origin);
 148 }
 149
 150 void CSQCPlayer_CheckWater(entity this)
 151 {
 152         this.move_origin = this.origin;
 153         this.move_waterlevel = this.waterlevel;
 154         this.move_watertype = this.watertype;
 155         _Movetype_CheckWater(this);
 156         this.waterlevel = this.move_waterlevel;
 157         this.watertype = this.move_watertype;
 158 }
 159
 160 void CSQCPlayer_Physics(entity this)
 161 {
 162         if(autocvar_cl_movement)
 163         {
 164                 if(autocvar_cl_movement == 1)
 165                         CSQCPlayer_CheckWater(this); // we apparently need to check water *before* physics so it can use this for water jump
 166
 167                 vector oldv_angle = this.v_angle;
 168                 vector oldangles = this.angles; // we need to save these, as they're abused by other code
 169                 this.v_angle = PHYS_INPUT_ANGLES(this);
 170                 this.angles = PHYS_WORLD_ANGLES(this);
 171
 172                 CSQC_ClientMovement_PlayerMove_Frame(this);
 173
 174                 if(autocvar_cl_movement == 1)
 175                 {
 176                         this.move_origin = this.origin;
 177                         this.move_angles = this.angles;
 178                         //this.move_movetype = MOVETYPE_WALK; // temp
 179                         this.move_velocity = this.velocity;
 180                         this.move_avelocity = this.avelocity;
 181                         this.move_flags = BITSET(this.move_flags, FL_ONGROUND, IS_ONGROUND(this));
 182                         this.move_flags = BITSET(this.move_flags, FL_WATERJUMP, boolean(this.flags & FL_WATERJUMP));
 183                         this.move_waterlevel = this.waterlevel;
 184                         this.move_watertype = this.watertype;
 185                         Movetype_Physics_Spam(this);
 186                 }
 187
 188                 view_angles = this.v_angle;
 189                 input_angles = this.angles;
 190                 this.v_angle = oldv_angle;
 191                 this.angles = oldangles;
 192
 193                 this.pmove_flags =
 194                                 ((this.flags & FL_DUCKED) ? PMF_DUCKED : 0) |
 195                                 (!(this.flags & FL_JUMPRELEASED) ? PMF_JUMP_HELD : 0) |
 196                                 ((IS_ONGROUND(this)) ? PMF_ONGROUND : 0);
 197         }
 198 }
 199
 200 void CSQCPlayer_PredictTo(entity this, float endframe, bool apply_error)
 201 {
 202         CSQCPlayer_Unpredict(this);
 203         if (apply_error)
 204         {
 205                 this.origin += CSQCPlayer_GetPredictionErrorO();
 206                 this.velocity += CSQCPlayer_GetPredictionErrorV();
 207         }
 208         CSQCPlayer_SetMinsMaxs(this);
 209
 210         csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
 211
 212 #if 0
 213         // we don't need this
 214         // darkplaces makes servercommandframe == 0 in these cases anyway
 215         if (STAT(HEALTH) <= 0)
 216         {
 217                 csqcplayer_moveframe = clientcommandframe;
 218                 getinputstate(csqcplayer_moveframe-1);
 219                 LOG_INFO("the Weird code path got hit\n");
 220                 return;
 221         }
 222 #endif
 223
 224         if (csqcplayer_moveframe >= endframe)
 225         {
 226                 getinputstate(csqcplayer_moveframe - 1);
 227         }
 228         else
 229         {
 230                 do
 231                 {
 232                         if (!getinputstate(csqcplayer_moveframe)) break;
 233                         CSQCPlayer_Physics(this);
 234                         CSQCPlayer_SetMinsMaxs(this);
 235                         ++csqcplayer_moveframe;
 236                 }
 237                 while (csqcplayer_moveframe < endframe);
 238         }
 239
 240         // add in anything that was applied after (for low packet rate protocols)
 241         input_angles = view_angles;
 242 }
 243
 244 bool CSQCPlayer_IsLocalPlayer(entity this)
 245 {
 246         return (this == csqcplayer);
 247 }
 248
 249 void CSQCPlayer_SetViewLocation()
 250 {
 251         viewloc_SetViewLocation();
 252 }
 253
 254 /** Called once per CSQC_UpdateView() */
 255 void CSQCPlayer_SetCamera()
 256 {
 257         const vector v0 = pmove_vel; // TRICK: pmove_vel is set by the engine when we get here. No need to network velocity
 258         const float vh = STAT(VIEWHEIGHT);
 259         const vector pl_viewofs = STAT(PL_VIEW_OFS, NULL);
 260         const vector pl_viewofs_crouch = STAT(PL_CROUCH_VIEW_OFS, NULL);
 261         const entity e = csqcplayer;
 262         if (e)
 263         {
 264                 if (servercommandframe == 0 || clientcommandframe == 0)
 265                 {
 266                         InterpolateOrigin_Do(e);
 267                         e.view_ofs = '0 0 1' * vh;
 268
 269                         // get crouch state from the server
 270                         if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
 271                         else if (vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
 272
 273                         // get onground state from the server
 274                         e.flags = BITSET(e.flags, FL_ONGROUND, pmove_onground);
 275
 276                         CSQCPlayer_SetMinsMaxs(e);
 277
 278                         // override it back just in case
 279                         e.view_ofs = '0 0 1' * vh;
 280
 281                         // set velocity
 282                         e.velocity = v0;
 283                 }
 284                 else
 285                 {
 286                         const int flg = e.iflags; e.iflags &= ~(IFLAG_ORIGIN | IFLAG_ANGLES);
 287                         InterpolateOrigin_Do(e);
 288                         e.iflags = flg;
 289
 290                         if (csqcplayer_status == CSQCPLAYERSTATUS_FROMSERVER)
 291                         {
 292                                 const vector o = e.origin;
 293                                 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
 294                                 CSQCPlayer_PredictTo(e, servercommandframe + 1, false);
 295                                 CSQCPlayer_SetPredictionError(e.origin - o, e.velocity - v0, pmove_onground - IS_ONGROUND(e));
 296                                 e.origin = o;
 297                                 e.velocity = v0;
 298
 299                                 // get crouch state from the server
 300                                 if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
 301                                 else if(vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
 302
 303                                 // get onground state from the server
 304                                 e.flags = BITSET(e.flags, FL_ONGROUND, pmove_onground);
 305
 306                                 CSQCPlayer_SavePrediction(e);
 307                         }
 308                         CSQCPlayer_PredictTo(e, clientcommandframe + 1, true);
 309
 310 #ifdef CSQCMODEL_SERVERSIDE_CROUCH
 311                         // get crouch state from the server (LAG)
 312                         if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
 313                         else if (vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
 314 #endif
 315                         CSQCPlayer_SetMinsMaxs(e);
 316
 317                         e.angles_y = input_angles.y;
 318                 }
 319
 320                 // relink
 321                 setorigin(e, e.origin);
 322         }
 323
 324         const entity view = CSQCModel_server2csqc(player_localentnum - 1);
 325         if (view)
 326         {
 327                 if (view != csqcplayer)
 328                 {
 329                         InterpolateOrigin_Do(view);
 330                         view.view_ofs = '0 0 1' * vh;
 331                 }
 332                 int refdefflags = 0;
 333                 if (view.csqcmodel_teleported) refdefflags |= REFDEFFLAG_TELEPORTED;
 334                 if (input_buttons & BIT(1)) refdefflags |= REFDEFFLAG_JUMPING;
 335                 // note: these two only work in WIP2, but are harmless in WIP1
 336                 if (STAT(HEALTH) <= 0 && STAT(HEALTH) != -666 && STAT(HEALTH) != -2342) refdefflags |= REFDEFFLAG_DEAD;
 337                 if (intermission) refdefflags |= REFDEFFLAG_INTERMISSION;
 338                 V_CalcRefdef(view, refdefflags);
 339         }
 340         else
 341         {
 342                 // FIXME by CSQC spec we have to do this:
 343                 // but it breaks chase cam
 344                 /*
 345                 setproperty(VF_ORIGIN, pmove_org + '0 0 1' * vh);
 346                 setproperty(VF_ANGLES, view_angles);
 347                 */
 348         }
 349         CSQCPLAYER_HOOK_POSTCAMERASETUP();
 350 }
 351
 352 void CSQCPlayer_Remove(entity this)
 353 {
 354         csqcplayer = NULL;
 355         cvar_settemp("cl_movement_replay", "1");
 356 }
 357
 358 bool CSQCPlayer_PreUpdate(entity this)
 359 {
 360         if (this != csqcplayer) return false;
 361         if (csqcplayer_status != CSQCPLAYERSTATUS_FROMSERVER) CSQCPlayer_Unpredict(this);
 362         return true;
 363 }
 364
 365 bool CSQCPlayer_PostUpdate(entity this)
 366 {
 367         if (this.entnum != player_localnum + 1) return false;
 368         csqcplayer = this;
 369         csqcplayer_status = CSQCPLAYERSTATUS_FROMSERVER;
 370         cvar_settemp("cl_movement_replay", "0");
 371         this.entremove = CSQCPlayer_Remove;
 372         return true;
 373 }