OrdinaryMagician/vkdoom_m
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Added RNG snapshotting for predicting

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Allows RNG seeds to be played back in a predictive way paving the road for predictive behaviors that rely on RNG.
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Boondorl 2024-11-04 13:15:47 -05:00 • committed by Ricardo Luís Vaz Silva
commit a1a4a97dcd
4 changed files with 26 additions and 4 deletions
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6
src/playsim/p_user.cpp
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@ -144,6 +144,8 @@ static DVector3 LastPredictedPosition;
static int LastPredictedPortalGroup;
static int LastPredictedTic;
static TArray<FRandom> PredictionRNG;
static player_t PredictionPlayerBackup;
static AActor *PredictionActor;
static TArray<uint8_t> PredictionActorBackupArray;
@ -1461,6 +1463,8 @@ void P_PredictPlayer (player_t *player)
return;
}
FRandom::SaveRNGState(PredictionRNG);
// Save original values for restoration later
PredictionPlayerBackup.CopyFrom(*player, false);
@ -1600,6 +1604,8 @@ void P_UnPredictPlayer ()
// Q: Can this happen? If yes, can we continue?
}
FRandom::RestoreRNGState(PredictionRNG);
AActor *savedcamera = player->camera;
auto &actInvSel = act->PointerVar<AActor*>(NAME_InvSel);