FBox UPhysicsConstraintComponent::GetBodyBoxInternal(EConstraintFrame::Type Frame, FName InBoneName) const
{
FBox ResultBox(0);
UPrimitiveComponent* PrimComp = GetComponentInternal(Frame);
// Skeletal case
USkeletalMeshComponent* SkelComp = Cast<USkeletalMeshComponent>(PrimComp);
if(SkelComp != NULL)
{
UPhysicsAsset * const PhysicsAsset = SkelComp->GetPhysicsAsset();
if (PhysicsAsset)
{
int32 BoneIndex = SkelComp->GetBoneIndex(InBoneName);
int32 BodyIndex = PhysicsAsset->FindBodyIndex(InBoneName);
if(BoneIndex != INDEX_NONE && BodyIndex != INDEX_NONE)
{
const FTransform BoneTransform = SkelComp->GetBoneTransform(BoneIndex);
ResultBox = PhysicsAsset->BodySetup[BodyIndex]->AggGeom.CalcAABB(BoneTransform);
}
}
}
else if(PrimComp != NULL)
{
ResultBox = PrimComp->Bounds.GetBox();
}
return ResultBox;
}
FWidget::EWidgetMode FFabrikEditMode::GetWidgetMode() const
{
USkeletalMeshComponent* SkelComp = GetAnimPreviewScene().GetPreviewMeshComponent();
int32 BoneIndex = SkelComp->GetBoneIndex(GraphNode->Node.EffectorTransformBone.BoneName);
if (BoneIndex != INDEX_NONE)
{
return FWidget::WM_Translate;
}
return FWidget::WM_None;
}
FVector FObserveBoneEditMode::GetWidgetLocation() const
{
USkeletalMeshComponent* SkelComp = GetAnimPreviewScene().GetPreviewMeshComponent();
USkeleton* Skeleton = SkelComp->SkeletalMesh->Skeleton;
FVector WidgetLoc = FVector::ZeroVector;
int32 MeshBoneIndex = SkelComp->GetBoneIndex(GraphNode->Node.BoneToObserve.BoneName);
if (MeshBoneIndex != INDEX_NONE)
{
const FTransform BoneTM = SkelComp->GetBoneTransform(MeshBoneIndex);
WidgetLoc = BoneTM.GetLocation();
}
return WidgetLoc;
}
FTransform UPhysicsConstraintComponent::GetBodyTransformInternal(EConstraintFrame::Type Frame, FName InBoneName) const
{
UPrimitiveComponent* PrimComp = GetComponentInternal(Frame);
if(!PrimComp)
{
return FTransform::Identity;
}
//Use ComponentToWorld by default for all components
FTransform ResultTM = PrimComp->ComponentToWorld;
// Skeletal case
USkeletalMeshComponent* SkelComp = Cast<USkeletalMeshComponent>(PrimComp);
if(SkelComp != NULL)
{
int32 BoneIndex = SkelComp->GetBoneIndex(InBoneName);
if(BoneIndex != INDEX_NONE)
{
ResultTM = SkelComp->GetBoneTransform(BoneIndex);
}
}
return ResultTM;
}