2 * Copyright (c) 2011 Rudolf Polzer
3 * Copyright (c) 2015 Micah Talkiewicz
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:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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
23 #include "cl_player.qh"
25 #include "cl_model.qh"
27 #include "interpolate.qh"
28 #include "../../client/defs.qh"
29 #include "../../client/main.qh"
30 #include "../../common/constants.qh"
31 #include "../../common/physics.qh"
32 #include "../../common/stats.qh"
33 #include "../../common/triggers/trigger/viewloc.qh"
34 #include "../../common/util.qh"
35 #include "../../common/viewloc.qh"
37 float autocvar_cl_movement_errorcompensation = 0;
40 float pmove_onground; // weird engine flag we shouldn't really use but have to for now
42 vector csqcplayer_origin, csqcplayer_velocity;
43 float csqcplayer_sequence;
45 float csqcplayer_moveframe;
46 vector csqcplayer_predictionerroro;
47 vector csqcplayer_predictionerrorv;
48 float csqcplayer_predictionerrortime;
49 float csqcplayer_predictionerrorfactor;
51 vector CSQCPlayer_GetPredictionErrorO()
53 if (time >= csqcplayer_predictionerrortime) return '0 0 0';
54 return csqcplayer_predictionerroro * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
57 vector CSQCPlayer_GetPredictionErrorV()
59 if (time >= csqcplayer_predictionerrortime) return '0 0 0';
60 return csqcplayer_predictionerrorv * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
63 void CSQCPlayer_SetPredictionError(vector o, vector v, float onground_diff)
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
69 // FIXME we sometimes have disagreement in order of jump velocity. Do not act on them!
71 // commented out as this one did not help
74 printf("ONGROUND MISMATCH: %d x=%v v=%v\n", onground_diff, o, v);
78 if(vlen(o) > 32 || vlen(v) > 192)
80 //printf("TOO BIG: x=%v v=%v\n", o, v);
84 if(!autocvar_cl_movement_errorcompensation)
86 csqcplayer_predictionerrorfactor = 0;
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;
96 void CSQCPlayer_Unpredict(entity this)
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;
106 void CSQCPlayer_SetMinsMaxs(entity this)
108 if (this.flags & FL_DUCKED)
110 this.mins = PL_CROUCH_MIN;
111 this.maxs = PL_CROUCH_MAX;
112 this.view_ofs = PL_CROUCH_VIEW_OFS;
118 this.view_ofs = PL_VIEW_OFS;
122 void CSQCPlayer_SavePrediction(entity this)
124 player_pmflags = this.flags;
125 csqcplayer_origin = this.origin;
126 csqcplayer_velocity = this.velocity;
127 csqcplayer_sequence = servercommandframe;
128 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
131 void CSQC_ClientMovement_PlayerMove_Frame(entity this);
132 void _Movetype_Physics_Frame(entity this, float movedt);
134 void Movetype_Physics_Spam(entity this) // optimized
136 _Movetype_Physics_Frame(this, PHYS_INPUT_TIMELENGTH);
140 this.avelocity = this.move_avelocity;
141 this.velocity = this.move_velocity;
142 this.angles = this.move_angles;
143 setorigin(this, this.move_origin);
146 void CSQCPlayer_Physics(entity this)
148 if(autocvar_cl_movement)
150 CSQC_ClientMovement_PlayerMove_Frame(this);
152 if(autocvar_cl_movement == 3)
154 this.move_origin = this.origin;
155 this.move_angles = this.angles;
156 this.move_movetype = MOVETYPE_WALK; // temp
157 this.move_velocity = this.velocity;
158 this.move_avelocity = this.avelocity;
159 Movetype_Physics_Spam(this);
164 void CSQCPlayer_PredictTo(entity this, float endframe, bool apply_error)
166 CSQCPlayer_Unpredict(this);
169 this.origin += CSQCPlayer_GetPredictionErrorO();
170 this.velocity += CSQCPlayer_GetPredictionErrorV();
172 CSQCPlayer_SetMinsMaxs(this);
174 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
177 // we don't need this
178 // darkplaces makes servercommandframe == 0 in these cases anyway
179 if (getstatf(STAT_HEALTH) <= 0)
181 csqcplayer_moveframe = clientcommandframe;
182 getinputstate(csqcplayer_moveframe-1);
183 LOG_INFO("the Weird code path got hit\n");
188 if (csqcplayer_moveframe >= endframe)
190 getinputstate(csqcplayer_moveframe - 1);
196 if (!getinputstate(csqcplayer_moveframe)) break;
197 CSQCPlayer_Physics(this);
198 CSQCPlayer_SetMinsMaxs(this);
199 ++csqcplayer_moveframe;
201 while (csqcplayer_moveframe < endframe);
204 // add in anything that was applied after (for low packet rate protocols)
205 input_angles = view_angles;
208 bool CSQCPlayer_IsLocalPlayer(entity this)
210 return (this == csqcplayer);
213 void CSQCPlayer_SetViewLocation()
215 viewloc_SetViewLocation();
218 /** Called once per CSQC_UpdateView() */
219 void CSQCPlayer_SetCamera()
221 const vector v0 = pmove_vel; // TRICK: pmove_vel is set by the engine when we get here. No need to network velocity
222 const float vh = getstati(STAT_VIEWHEIGHT);
223 const vector pl_viewofs = PL_VIEW_OFS;
224 const vector pl_viewofs_crouch = PL_CROUCH_VIEW_OFS;
225 const entity e = csqcplayer;
228 if (servercommandframe == 0 || clientcommandframe == 0)
230 InterpolateOrigin_Do(e);
231 e.view_ofs = '0 0 1' * vh;
233 // get crouch state from the server
234 if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
235 else if (vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
237 // get onground state from the server
238 e.flags = BITSET(e.flags, FL_ONGROUND, pmove_onground);
240 CSQCPlayer_SetMinsMaxs(e);
242 // override it back just in case
243 e.view_ofs = '0 0 1' * vh;
250 const int flg = e.iflags; e.iflags &= ~(IFLAG_ORIGIN | IFLAG_ANGLES);
251 InterpolateOrigin_Do(e);
254 if (csqcplayer_status == CSQCPLAYERSTATUS_FROMSERVER)
256 const vector o = e.origin;
257 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
258 CSQCPlayer_PredictTo(e, servercommandframe + 1, false);
259 CSQCPlayer_SetPredictionError(e.origin - o, e.velocity - v0, pmove_onground - boolean(e.flags & FL_ONGROUND));
263 // get crouch state from the server
264 if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
265 else if(vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
267 // get onground state from the server
268 e.flags = BITSET(e.flags, FL_ONGROUND, pmove_onground);
270 CSQCPlayer_SavePrediction(e);
272 CSQCPlayer_PredictTo(e, clientcommandframe + 1, true);
274 #ifdef CSQCMODEL_SERVERSIDE_CROUCH
275 // get crouch state from the server (LAG)
276 if (vh == pl_viewofs.z) e.flags &= ~FL_DUCKED;
277 else if (vh == pl_viewofs_crouch.z) e.flags |= FL_DUCKED;
279 CSQCPlayer_SetMinsMaxs(e);
281 e.angles_y = input_angles.y;
285 setorigin(e, e.origin);
288 const entity view = CSQCModel_server2csqc(player_localentnum - 1);
291 if (view != csqcplayer)
293 InterpolateOrigin_Do(view);
294 view.view_ofs = '0 0 1' * vh;
297 if (view.csqcmodel_teleported) refdefflags |= REFDEFFLAG_TELEPORTED;
298 if (input_buttons & BIT(1)) refdefflags |= REFDEFFLAG_JUMPING;
299 // note: these two only work in WIP2, but are harmless in WIP1
300 if (getstati(STAT_HEALTH) <= 0) refdefflags |= REFDEFFLAG_DEAD;
301 if (intermission) refdefflags |= REFDEFFLAG_INTERMISSION;
302 V_CalcRefdef(view, refdefflags);
306 // FIXME by CSQC spec we have to do this:
307 // but it breaks chase cam
309 setproperty(VF_ORIGIN, pmove_org + '0 0 1' * vh);
310 setproperty(VF_ANGLES, view_angles);
313 CSQCPLAYER_HOOK_POSTCAMERASETUP();
316 void CSQCPlayer_Remove()
319 cvar_settemp("cl_movement_replay", "1");
322 bool CSQCPlayer_PreUpdate(entity this)
324 if (this != csqcplayer) return false;
325 if (csqcplayer_status != CSQCPLAYERSTATUS_FROMSERVER) CSQCPlayer_Unpredict(this);
329 bool CSQCPlayer_PostUpdate(entity this)
331 if (this.entnum != player_localnum + 1) return false;
333 csqcplayer_status = CSQCPLAYERSTATUS_FROMSERVER;
334 cvar_settemp("cl_movement_replay", "0");
335 this.entremove = CSQCPlayer_Remove;