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 var float autocvar_cl_predictionerrorcompensation = 0;
27 float pmove_onground; // weird engine flag we shouldn't really use but have to for now
28 #define PMF_JUMP_HELD 1
30 #define PMF_ONGROUND 8
31 #define REFDEFFLAG_TELEPORTED 1
32 #define REFDEFFLAG_JUMPING 2
35 vector csqcplayer_origin, csqcplayer_velocity;
36 float csqcplayer_sequence, player_pmflags;
37 float csqcplayer_moveframe;
38 vector csqcplayer_predictionerror;
39 float csqcplayer_predictionerrortime;
41 vector CSQCPlayer_GetPredictionError()
43 if(!autocvar_cl_predictionerrorcompensation)
45 if(time < csqcplayer_predictionerrortime)
46 return csqcplayer_predictionerror * (csqcplayer_predictionerrortime - time) * autocvar_cl_predictionerrorcompensation;
50 void CSQCPlayer_SetPredictionError(vector v)
52 if(!autocvar_cl_predictionerrorcompensation)
54 csqcplayer_predictionerror = (csqcplayer_predictionerrortime - time) * autocvar_cl_predictionerrorcompensation * csqcplayer_predictionerror + v;
55 csqcplayer_predictionerrortime = time + 1.0 / autocvar_cl_predictionerrorcompensation;
58 void CSQCPlayer_Unpredict()
60 if(csqcplayer_status == CSQCPLAYERSTATUS_UNPREDICTED)
62 if(csqcplayer_status != CSQCPLAYERSTATUS_PREDICTED)
63 error("Cannot unpredict in current status");
64 self.origin = csqcplayer_origin;
65 self.velocity = csqcplayer_velocity;
66 csqcplayer_moveframe = csqcplayer_sequence+1; //+1 because the recieved frame has the move already done (server side)
67 self.pmove_flags = player_pmflags;
70 void CSQCPlayer_SetMinsMaxs()
72 if(self.pmove_flags & PMF_DUCKED)
74 self.mins = PL_CROUCH_MIN;
75 self.maxs = PL_CROUCH_MAX;
76 self.view_ofs = PL_CROUCH_VIEW_OFS;
82 self.view_ofs = PL_VIEW_OFS;
86 void CSQCPlayer_SavePrediction()
88 player_pmflags = self.pmove_flags;
89 csqcplayer_origin = self.origin;
90 csqcplayer_velocity = self.velocity;
91 csqcplayer_sequence = servercommandframe;
92 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
95 void CSQCPlayer_PredictTo(float endframe)
97 CSQCPlayer_Unpredict();
98 CSQCPlayer_SetMinsMaxs();
100 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
102 if (getstatf(STAT_HEALTH) <= 0)
104 csqcplayer_moveframe = clientcommandframe;
105 getinputstate(csqcplayer_moveframe-1);
109 while(csqcplayer_moveframe < endframe)
111 if (!getinputstate(csqcplayer_moveframe))
115 if(input_timelength <= 0.0005) // too short move
117 dprint("CSQC physics hack: too short frame skipped\n");
118 // even if not running physics, handle releasing the jump key
119 if(!(input_buttons & 4))
120 self.pmove_flags &~= PMF_JUMP_HELD;
122 else if(input_timelength > 0.05) // too long move
124 dprint("CSQC physics hack: too long frame split in two\n");
125 input_timelength *= 0.5;
126 runstandardplayerphysics(self);
127 CSQCPlayer_SetMinsMaxs();
128 runstandardplayerphysics(self);
129 CSQCPlayer_SetMinsMaxs();
133 runstandardplayerphysics(self);
134 CSQCPlayer_SetMinsMaxs();
136 csqcplayer_moveframe++;
139 //add in anything that was applied after (for low packet rate protocols)
140 input_angles = view_angles;
143 float CSQCPlayer_IsLocalPlayer()
145 return (self == csqcplayer);
148 void(entity e, float fl) V_CalcRefdef = #640; // DP_CSQC_V_CALCREFDEF
150 void CSQCPlayer_SetCamera()
158 #ifdef COMPAT_XON050_ENGINE
159 if(servercommandframe == 0 || !(checkextension("DP_CSQC_V_CALCREFDEF") || checkextension("DP_CSQC_V_CALCREFDEF_WIP1")))
161 if(servercommandframe == 0)
164 InterpolateOrigin_Do();
165 self.view_ofs = '0 0 1' * getstati(STAT_VIEWHEIGHT);
167 // get crouch state from the server
168 if(getstati(STAT_VIEWHEIGHT) == PL_VIEW_OFS_z)
169 self.pmove_flags &~= PMF_DUCKED;
170 else if(getstati(STAT_VIEWHEIGHT) == PL_CROUCH_VIEW_OFS_z)
171 self.pmove_flags |= PMF_DUCKED;
173 // get onground state from the server
175 self.pmove_flags |= PMF_ONGROUND;
177 self.pmove_flags &~= PMF_ONGROUND;
179 CSQCPlayer_SetMinsMaxs();
181 // override it back just in case
182 self.view_ofs = '0 0 1' * getstati(STAT_VIEWHEIGHT);
186 if(csqcplayer_status == CSQCPLAYERSTATUS_FROMSERVER)
190 v = pmove_vel; // TRICK: pmove_vel is set by the engine when we get here. No need to network velocity
191 csqcplayer_status = CSQCPLAYERSTATUS_PREDICTED;
192 CSQCPlayer_PredictTo(servercommandframe + 1);
193 CSQCPlayer_SetPredictionError(o - self.origin);
197 // get crouch state from the server
198 if(getstati(STAT_VIEWHEIGHT) == PL_VIEW_OFS_z)
199 self.pmove_flags &~= PMF_DUCKED;
200 else if(getstati(STAT_VIEWHEIGHT) == PL_CROUCH_VIEW_OFS_z)
201 self.pmove_flags |= PMF_DUCKED;
203 // get onground state from the server
205 self.pmove_flags |= PMF_ONGROUND;
207 self.pmove_flags &~= PMF_ONGROUND;
209 CSQCPlayer_SavePrediction();
211 CSQCPlayer_PredictTo(clientcommandframe + 1);
213 CSQCPlayer_SetMinsMaxs();
217 setorigin(self, self.origin);
219 self.angles_y = input_angles_y;
225 #ifdef COMPAT_XON050_ENGINE
226 view = CSQCModel_server2csqc((spectatee_status > 0) ? spectatee_status : player_localentnum);
228 view = CSQCModel_server2csqc(player_localentnum);
231 #ifdef COMPAT_XON050_ENGINE
232 if(view && !(checkextension("DP_CSQC_V_CALCREFDEF") || checkextension("DP_CSQC_V_CALCREFDEF_WIP1")))
234 // legacy code, not totally correct, but good enough for not having V_CalcRefdef
235 setproperty(VF_ORIGIN, view.origin + '0 0 1' * getstati(STAT_VIEWHEIGHT));
236 setproperty(VF_ANGLES, view.angles);
242 var float refdefflags = 0;
244 if(view.csqcmodel_teleported)
246 refdefflags |= REFDEFFLAG_TELEPORTED;
247 view.csqcmodel_teleported = 0;
250 if(input_buttons & 4)
251 refdefflags |= REFDEFFLAG_JUMPING;
253 V_CalcRefdef(view, refdefflags);
257 setproperty(VF_ORIGIN, pmove_org + '0 0 1' * getstati(STAT_VIEWHEIGHT));
258 setproperty(VF_ANGLES, view_angles);
261 { CSQCPLAYER_HOOK_POSTCAMERASETUP }
264 void CSQCPlayer_Remove()
266 if(self.entnum != player_localnum + 1)
269 cvar_clientsettemp("cl_movement_replay", "1");
272 float CSQCPlayer_PreUpdate()
274 if(self.entnum != player_localnum + 1)
276 cvar_clientsettemp("cl_movement_replay", "0");
277 if(csqcplayer_status != CSQCPLAYERSTATUS_FROMSERVER)
278 CSQCPlayer_Unpredict();
282 float CSQCPlayer_PostUpdate()
284 if(self.entnum != player_localentnum)
286 csqcplayer_status = CSQCPLAYERSTATUS_FROMSERVER;
288 self.entremove = CSQCPlayer_Remove;