void UFaceFXMatineeControl::UpdateTrack( float NewPosition, UInterpTrackInst* TrackInst, bool bJump )
{
check(TrackInst);
AActor* Actor = TrackInst->GetGroupActor();
if(!Actor)
{
return;
}
UFaceFXComponent* FaceFXComp = Actor->FindComponentByClass<UFaceFXComponent>();
if(!FaceFXComp)
{
return;
}
UFaceFXMatineeControlInst* TrackInstFaceFX = CastChecked<UFaceFXMatineeControlInst>(TrackInst);
if(Keys.Num() == 0)
{
FaceFXComp->Stop(nullptr, this);
}
else if(NewPosition <= TrackInstFaceFX->LastUpdatePosition || bJump)
{
TArray<TPair<int32, const FFaceFXTrackKey*>> TrackKeyPairs;
TArray<FFaceFXSkelMeshComponentId> SkelMeshNoTracks;
GetTrackKeyForTime(NewPosition, TrackKeyPairs, &SkelMeshNoTracks);
for(const TPair<int32, const FFaceFXTrackKey*>& TrackKeyPair : TrackKeyPairs)
{
const FFaceFXTrackKey* TrackKey = TrackKeyPair.Value;
const float NewFaceFXAnimLocation = NewPosition - TrackKey->Time;
check(NewFaceFXAnimLocation >= 0.F)
USkeletalMeshComponent* SkelMeshTarget = FaceFXComp->GetSkelMeshTarget(TrackKey->SkelMeshComponentId);
//Always stop when we switch track keys to prevent playing animations when switching backward after the end of another track animation
//Thats because we don't check here how long the animation actually plays and rely on the JumpTo/Play functionality alone to determine that
if(TrackKeyPair.Key != TrackInstFaceFX->GetCurrentTrackIndex(SkelMeshTarget))
{
FaceFXComp->Stop(SkelMeshTarget);
}
TrackInstFaceFX->SetCurrentTrackIndex(SkelMeshTarget, TrackKeyPair.Key);
bool JumpSucceeded = false;
//playing backwards or jumping
if(TrackKey->AnimationId.IsValid())
{
//play by animation id
JumpSucceeded = FaceFXComp->JumpToById(NewFaceFXAnimLocation, bJump, TrackKey->AnimationId.Group, TrackKey->AnimationId.Name, TrackKey->bLoop, SkelMeshTarget, this);
}
else if(UFaceFXAnim* FaceFXAnim = GetAnimation(*TrackKey, this))
{
//play by animation
JumpSucceeded = FaceFXComp->JumpTo(NewFaceFXAnimLocation, bJump, FaceFXAnim, TrackKey->bLoop, SkelMeshTarget, this);
}
if(!JumpSucceeded)
{
//jump to failed -> i.e. out of range on non looping animation
FaceFXComp->Stop(SkelMeshTarget);
}
}
for(const FFaceFXSkelMeshComponentId& SkelMashNoTrack : SkelMeshNoTracks)
{
//no track key at this position for this skelmesh component -> stop
FaceFXComp->Stop(FaceFXComp->GetSkelMeshTarget(SkelMashNoTrack));
}
}
else
{
TArray<TPair<int32, const FFaceFXTrackKey*>> TrackKeyPairs;
GetTrackKeyForTime(NewPosition, TrackKeyPairs);
for(const TPair<int32, const FFaceFXTrackKey*>& TrackKeyPair : TrackKeyPairs)
{
const FFaceFXTrackKey* TrackKey = TrackKeyPair.Value;
USkeletalMeshComponent* SkelMeshTarget = FaceFXComp->GetSkelMeshTarget(TrackKey->SkelMeshComponentId);
const bool IsPaused = FaceFXComp->IsPaused(SkelMeshTarget, this);
const bool IsPlayingOrPaused = IsPaused || FaceFXComp->IsPlaying(SkelMeshTarget, this);
if(!IsPlayingOrPaused || TrackKeyPair.Key != TrackInstFaceFX->GetCurrentTrackIndex(SkelMeshTarget))
{
//start playback of a new animation
const float PlaybackStartPosition = NewPosition - TrackKey->Time;
checkf(PlaybackStartPosition >= 0.F, TEXT("Invalid animation start location"));
bool StartSucceeded = false;
//play by animation id
if(TrackKey->AnimationId.IsValid())
{
//play by animation id
StartSucceeded = FaceFXComp->JumpToById(PlaybackStartPosition, false, TrackKey->AnimationId.Group, TrackKey->AnimationId.Name, TrackKey->bLoop, SkelMeshTarget, this);
}
else if(UFaceFXAnim* FaceFXAnim = GetAnimation(*TrackKey, this))
{
//play by animation
//StartSucceeded = FaceFXComp->Play(FaceFXAnim, nullptr, TrackKey->bLoop, this);
StartSucceeded = FaceFXComp->JumpTo(PlaybackStartPosition, false, FaceFXAnim, TrackKey->bLoop, SkelMeshTarget, this);
}
if(!StartSucceeded)
{
//start failed -> stop
FaceFXComp->Stop(SkelMeshTarget);
}
TrackInstFaceFX->SetCurrentTrackIndex(SkelMeshTarget, TrackKeyPair.Key);
}
else if(IsPaused)
{
//resume paused animation
FaceFXComp->Resume(SkelMeshTarget, this);
}
}
}
TrackInstFaceFX->LastUpdatePosition = NewPosition;
}