2 * Copyright (c) 2011 Rudolf Polzer
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 float autocvar_cl_movement_errorcompensation = 0;
26 float pmove_onground; // weird engine flag we shouldn't really use but have to for now
28 vector csqcplayer_origin, csqcplayer_velocity;
29 float csqcplayer_sequence, player_pmflags;
30 float csqcplayer_moveframe;
31 vector csqcplayer_predictionerroro;
32 vector csqcplayer_predictionerrorv;
33 float csqcplayer_predictionerrortime;
34 float csqcplayer_predictionerrorfactor;
36 vector CSQCPlayer_GetPredictionErrorO()
38 if(time >= csqcplayer_predictionerrortime)
40 return csqcplayer_predictionerroro * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
43 vector CSQCPlayer_GetPredictionErrorV()
45 if(time >= csqcplayer_predictionerrortime)
47 return csqcplayer_predictionerrorv * (csqcplayer_predictionerrortime - time) * csqcplayer_predictionerrorfactor;
50 void CSQCPlayer_SetPredictionError(vector o, vector v, float onground_diff)
52 // error too big to compensate, we LIKELY hit a teleport or a
53 // jumppad, or it's a jump time disagreement that'll get fixed
56 // FIXME we sometimes have disagreement in order of jump velocity. Do not act on them!
58 // commented out as this one did not help
61 printf("ONGROUND MISMATCH: %d x=%v v=%v\n", onground_diff, o, v);
65 if(vlen(o) > 32 || vlen(v) > 192)
67 //printf("TOO BIG: x=%v v=%v\n", o, v);
71 if(!autocvar_cl_movement_errorcompensation)
73 csqcplayer_predictionerrorfactor = 0;
77 csqcplayer_predictionerroro = CSQCPlayer_GetPredictionErrorO() + o;
78 csqcplayer_predictionerrorv = CSQCPlayer_GetPredictionErrorV() + v;
79 csqcplayer_predictionerrorfactor = autocvar_cl_movement_errorcompensation / ticrate;
80 csqcplayer_predictionerrortime = time + 1.0 / csqcplayer_predictionerrorfactor;
83 void CSQCPlayer_Unpredict()
85 if(csqcplayer_status == CSQCPLAYERSTATUS_UNPREDICTED)
87 if(csqcplayer_status != CSQCPLAYERSTATUS_PREDICTED)
88 error("Cannot unpredict in current status");
89 self.origin = csqcplayer_origin;
90 self.velocity = csqcplayer_velocity;
91 csqcplayer_moveframe = csqcplayer_sequence+1; //+1 because the recieved frame has the move already done (server side)
92 self.pmove_flags = player_pmflags;
95 void CSQCPlayer_SetMinsMaxs()
97 if(self.pmove_flags & PMF_DUCKED)
99 self.mins = PL_CROUCH_MIN;
100 self.maxs = PL_CROUCH_MAX;
101 self.view_ofs = PL_CROUCH_VIEW_OFS;
107 self.view_ofs = PL_VIEW_OFS;
111 void CSQCPlayer_SavePrediction()
113 player_pmflags = self.pmove_flags;
114 csqcplayer_origin = self.origin;
115 csqcplayer_velocity = self.velocity;
116 csqcplayer_sequence = servercommandframe;
117 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
120 void CSQCPlayer_PredictTo(float endframe, float apply_error)
122 CSQCPlayer_Unpredict();
125 self.origin += CSQCPlayer_GetPredictionErrorO();
126 self.velocity += CSQCPlayer_GetPredictionErrorV();
128 CSQCPlayer_SetMinsMaxs();
130 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
133 // we don't need this
134 // darkplaces makes servercommandframe == 0 in these cases anyway
135 if (getstatf(STAT_HEALTH) <= 0)
137 csqcplayer_moveframe = clientcommandframe;
138 getinputstate(csqcplayer_moveframe-1);
139 print("the Weird code path got hit\n");
144 if(csqcplayer_moveframe >= endframe)
146 getinputstate(csqcplayer_moveframe - 1);
152 if (!getinputstate(csqcplayer_moveframe))
154 runstandardplayerphysics(self);
155 CSQCPlayer_SetMinsMaxs();
156 csqcplayer_moveframe++;
158 while(csqcplayer_moveframe < endframe);
161 //add in anything that was applied after (for low packet rate protocols)
162 input_angles = view_angles;
165 float CSQCPlayer_IsLocalPlayer()
167 return (self == csqcplayer);
170 void CSQCPlayer_SetCamera()
173 v0 = pmove_vel; // TRICK: pmove_vel is set by the engine when we get here. No need to network velocity
181 if(servercommandframe == 0 || clientcommandframe == 0)
183 InterpolateOrigin_Do();
184 self.view_ofs = '0 0 1' * getstati(STAT_VIEWHEIGHT);
186 // get crouch state from the server
187 if(getstati(STAT_VIEWHEIGHT) == PL_VIEW_OFS_z)
188 self.pmove_flags &= ~PMF_DUCKED;
189 else if(getstati(STAT_VIEWHEIGHT) == PL_CROUCH_VIEW_OFS_z)
190 self.pmove_flags |= PMF_DUCKED;
192 // get onground state from the server
194 self.pmove_flags |= PMF_ONGROUND;
196 self.pmove_flags &= ~PMF_ONGROUND;
198 CSQCPlayer_SetMinsMaxs();
200 // override it back just in case
201 self.view_ofs = '0 0 1' * getstati(STAT_VIEWHEIGHT);
208 float flg = self.iflags;
209 self.iflags &= ~(IFLAG_ORIGIN | IFLAG_ANGLES);
210 InterpolateOrigin_Do();
213 if(csqcplayer_status == CSQCPLAYERSTATUS_FROMSERVER)
218 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
219 CSQCPlayer_PredictTo(servercommandframe + 1, false);
220 CSQCPlayer_SetPredictionError(self.origin - o, self.velocity - v, pmove_onground - !!(self.pmove_flags & PMF_ONGROUND));
224 // get crouch state from the server
225 if(getstati(STAT_VIEWHEIGHT) == PL_VIEW_OFS_z)
226 self.pmove_flags &= ~PMF_DUCKED;
227 else if(getstati(STAT_VIEWHEIGHT) == PL_CROUCH_VIEW_OFS_z)
228 self.pmove_flags |= PMF_DUCKED;
230 // get onground state from the server
232 self.pmove_flags |= PMF_ONGROUND;
234 self.pmove_flags &= ~PMF_ONGROUND;
236 CSQCPlayer_SavePrediction();
238 CSQCPlayer_PredictTo(clientcommandframe + 1, true);
240 #ifdef CSQCMODEL_SERVERSIDE_CROUCH
241 // get crouch state from the server (LAG)
242 if(getstati(STAT_VIEWHEIGHT) == PL_VIEW_OFS_z)
243 self.pmove_flags &= ~PMF_DUCKED;
244 else if(getstati(STAT_VIEWHEIGHT) == PL_CROUCH_VIEW_OFS_z)
245 self.pmove_flags |= PMF_DUCKED;
248 CSQCPlayer_SetMinsMaxs();
250 self.angles_y = input_angles.y;
254 setorigin(self, self.origin);
260 view = CSQCModel_server2csqc(player_localentnum);
262 if(view && view != csqcplayer)
264 entity oldself = self;
266 InterpolateOrigin_Do();
267 self.view_ofs = '0 0 1' * getstati(STAT_VIEWHEIGHT);
275 if(view.csqcmodel_teleported)
276 refdefflags |= REFDEFFLAG_TELEPORTED;
278 if(input_buttons & 4)
279 refdefflags |= REFDEFFLAG_JUMPING;
281 // note: these two only work in WIP2, but are harmless in WIP1
282 if(getstati(STAT_HEALTH) <= 0)
283 refdefflags |= REFDEFFLAG_DEAD;
286 refdefflags |= REFDEFFLAG_INTERMISSION;
288 V_CalcRefdef(view, refdefflags);
292 // FIXME by CSQC spec we have to do this:
293 // but it breaks chase cam
295 setproperty(VF_ORIGIN, pmove_org + '0 0 1' * getstati(STAT_VIEWHEIGHT));
296 setproperty(VF_ANGLES, view_angles);
300 { CSQCPLAYER_HOOK_POSTCAMERASETUP }
303 void CSQCPlayer_Remove()
306 cvar_settemp("cl_movement_replay", "1");
309 float CSQCPlayer_PreUpdate()
311 if(self != csqcplayer)
313 if(csqcplayer_status != CSQCPLAYERSTATUS_FROMSERVER)
314 CSQCPlayer_Unpredict();
318 float CSQCPlayer_PostUpdate()
320 if(self.entnum != player_localnum + 1)
323 csqcplayer_status = CSQCPLAYERSTATUS_FROMSERVER;
324 cvar_settemp("cl_movement_replay", "0");
325 self.entremove = CSQCPlayer_Remove;