bool UMovieScene3DTransformSection::NewKeyIsNewData(const FTransformKey& TransformKey) const
{
bool bHasEmptyKeys = false;
for (int32 i = 0; i < 3; ++i)
{
bHasEmptyKeys = bHasEmptyKeys ||
Translation[i].GetNumKeys() == 0 ||
Rotation[i].GetNumKeys() == 0 ||
Scale[i].GetNumKeys() == 0;
}
if ( bHasEmptyKeys || (TransformKey.KeyParams.bAutoKeying && TransformKey.ShouldKeyAny() ) )
{
return true;
}
return false;
}
void UMovieScene3DTransformSection::AddScaleKeys( const FTransformKey& TransformKey )
{
const float Time = TransformKey.GetKeyTime();
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyScale( EAxis::X ) || Scale[0].GetNumKeys() == 0 )
{
AddKeyToCurve( Scale[0], Time, TransformKey.GetScaleValue().X, TransformKey.KeyParams );
}
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyScale( EAxis::Y ) || Scale[1].GetNumKeys() == 0 )
{
AddKeyToCurve( Scale[1], Time, TransformKey.GetScaleValue().Y, TransformKey.KeyParams );
}
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyScale( EAxis::Z ) || Scale[2].GetNumKeys() == 0 )
{
AddKeyToCurve( Scale[2], Time, TransformKey.GetScaleValue().Z, TransformKey.KeyParams );
}
}
void UMovieScene3DTransformSection::AddRotationKeys( const FTransformKey& TransformKey, const bool bUnwindRotation )
{
const float Time = TransformKey.GetKeyTime();
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyRotation( EAxis::X ) || Rotation[0].GetNumKeys() == 0 )
{
AddKeyToCurve( Rotation[0], Time, TransformKey.GetRotationValue().Roll, TransformKey.KeyParams, bUnwindRotation );
}
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyRotation( EAxis::Y ) || Rotation[1].GetNumKeys() == 0 )
{
AddKeyToCurve( Rotation[1], Time, TransformKey.GetRotationValue().Pitch, TransformKey.KeyParams, bUnwindRotation );
}
if( TransformKey.KeyParams.bAddKeyEvenIfUnchanged || TransformKey.ShouldKeyRotation( EAxis::Z ) || Rotation[2].GetNumKeys() == 0 )
{
AddKeyToCurve( Rotation[2], Time, TransformKey.GetRotationValue().Yaw, TransformKey.KeyParams, bUnwindRotation );
}
}
bool UMovieSceneTransformTrack::AddKeyToSection( const FGuid& ObjectHandle, const FTransformKey& InKey, const bool bUnwindRotation )
{
const UMovieSceneSection* NearestSection = MovieSceneHelpers::FindSectionAtTime(Sections, InKey.GetKeyTime());
if (!NearestSection || CastChecked<UMovieSceneTransformSection>(NearestSection)->NewKeyIsNewData(InKey))
{
UMovieSceneTransformSection* NewSection = Cast<UMovieSceneTransformSection>( FindOrAddSection( InKey.GetKeyTime() ) );
// key each component of the transform
NewSection->AddTranslationKeys( InKey );
NewSection->AddRotationKeys( InKey, bUnwindRotation );
NewSection->AddScaleKeys( InKey );
return true;
}
return false;
}