void FMatineeImportTools::CopyInterpParticleTrack( TSharedRef<ISequencer> Sequencer, UInterpTrackToggle* MatineeToggleTrack, UMovieSceneParticleTrack* ParticleTrack )
{
const FScopedTransaction Transaction( NSLOCTEXT( "Sequencer", "PasteMatineeParticleTrack", "Paste Matinee particle track" ) );
bool bSectionCreated = false;
ParticleTrack->Modify();
float KeyTime = MatineeToggleTrack->GetKeyframeTime( 0 );
UMovieSceneParticleSection* Section = Cast<UMovieSceneParticleSection>( MovieSceneHelpers::FindSectionAtTime( ParticleTrack->GetAllSections(), KeyTime ) );
if ( Section == nullptr )
{
Section = Cast<UMovieSceneParticleSection>( ParticleTrack->CreateNewSection() );
ParticleTrack->AddSection( *Section );
bSectionCreated = true;
}
if (Section->TryModify())
{
float SectionMin = Section->GetStartTime();
float SectionMax = Section->GetEndTime();
FIntegralCurve& ParticleCurve = Section->GetParticleCurve();
for ( const auto& Key : MatineeToggleTrack->ToggleTrack )
{
EParticleKey::Type ParticleKey;
if ( TryConvertMatineeToggleToOutParticleKey( Key.ToggleAction, ParticleKey ) )
{
ParticleCurve.AddKey( Key.Time, (int32)ParticleKey, ParticleCurve.FindKey( Key.Time ) );
}
SectionMin = FMath::Min( SectionMin, Key.Time );
SectionMax = FMath::Max( SectionMax, Key.Time );
}
Section->SetStartTime( SectionMin );
Section->SetEndTime( SectionMax );
if ( bSectionCreated )
{
Sequencer->NotifyMovieSceneDataChanged();
}
}
}
void FMovieSceneParticleTrackInstance::Update( float Position, float LastPosition, const TArray<UObject*>& RuntimeObjects, class IMovieScenePlayer& Player )
{
// @todo Sequencer We need something analagous to Matinee 1's particle replay tracks
// What we have here is simple toggling/triggering
if (Position > LastPosition && Player.GetPlaybackStatus() == EMovieScenePlayerStatus::Playing)
{
bool bTrigger = false, bOn = false, bOff = false;
const TArray<UMovieSceneSection*> Sections = ParticleTrack->GetAllParticleSections();
for (int32 i = 0; i < Sections.Num(); ++i)
{
UMovieSceneParticleSection* Section = Cast<UMovieSceneParticleSection>(Sections[i]);
if (Section->GetKeyType() == EParticleKey::Trigger)
{
if (Position > Section->GetStartTime() && LastPosition < Section->GetStartTime())
{
bTrigger = true;
}
}
else if (Section->GetKeyType() == EParticleKey::Toggle)
{
if (Position >= Section->GetStartTime() && Position <= Section->GetEndTime())
{
bOn = true;
}
else if (Position >= Section->GetEndTime() && LastPosition < Section->GetEndTime())
{
bOff = true;
}
}
}
if (bTrigger || bOn || bOff)
{
for (int32 i = 0; i < RuntimeObjects.Num(); ++i)
{
AEmitter* Emitter = Cast<AEmitter>(RuntimeObjects[i]);
if (Emitter)
{
if (bTrigger)
{
Emitter->ToggleActive();
}
else if (bOn)
{
Emitter->Activate();
}
else if (bOff)
{
Emitter->Deactivate();
}
}
}
}
}
else
{
for (int32 i = 0; i < RuntimeObjects.Num(); ++i)
{
AEmitter* Emitter = Cast<AEmitter>(RuntimeObjects[i]);
if (Emitter)
{
Emitter->Deactivate();
}
}
}
}