void FEdModeLevel::SetLevel( ULevelStreaming* LevelStream )
{
if( SelectedLevel != NULL && SelectedLevel != LevelStream )
{
// Changed level need to apply PostEditMove to the actors we moved in the last level
ApplyPostEditMove();
}
SelectedLevel = LevelStream;
bIsDirty = false;
if( SelectedLevel )
{
LevelTransform = SelectedLevel->LevelTransform;
ULevel* Level = SelectedLevel->GetLoadedLevel();
// Calculate the Level bounds box
LevelBounds = FBox(0);
if( Level )
{
for( int32 ActorIndex=0; ActorIndex< Level->Actors.Num(); ActorIndex++ )
{
AActor* Actor = Level->Actors[ActorIndex];
// Don't include the builder brush or the world settings as they can artificially make the level bounds bigger
if( Actor && FActorEditorUtils::IsABuilderBrush(Actor) == false && Level->GetWorldSettings() != Actor )
{
LevelBounds += Actor->GetComponentsBoundingBox();
}
}
}
}
GEditor->RedrawAllViewports();
}
void FLevelUtils::ApplyLevelTransform( ULevel* Level, const FTransform& LevelTransform, bool bDoPostEditMove )
{
bool bTransformActors = !LevelTransform.Equals(FTransform::Identity);
if (bTransformActors)
{
if (!LevelTransform.GetRotation().IsIdentity())
{
// If there is a rotation applied, then the relative precomputed bounds become invalid.
Level->bTextureStreamingRotationChanged = true;
}
// Iterate over all actors in the level and transform them
for( int32 ActorIndex=0; ActorIndex<Level->Actors.Num(); ActorIndex++ )
{
AActor* Actor = Level->Actors[ActorIndex];
// Don't want to transform children they should stay relative to there parents.
if( Actor && Actor->GetAttachParentActor() == NULL )
{
// Has to modify root component directly as GetActorPosition is incorrect this early
USceneComponent *RootComponent = Actor->GetRootComponent();
if (RootComponent)
{
RootComponent->SetRelativeLocationAndRotation( LevelTransform.TransformPosition(RootComponent->RelativeLocation), (FTransform(RootComponent->RelativeRotation) * LevelTransform).Rotator());
}
}
}
#if WITH_EDITOR
if( bDoPostEditMove )
{
ApplyPostEditMove( Level );
}
#endif // WITH_EDITOR
Level->OnApplyLevelTransform.Broadcast(LevelTransform);
}
}
void FEdModeLevel::Exit()
{
ApplyPostEditMove();
SelectedLevel = NULL;
FEdMode::Exit();
}
