void UAnimGraphNode_TwoBoneIK::MoveSelectActorLocation(const USkeletalMeshComponent* SkelComp, FAnimNode_SkeletalControlBase* AnimNode)
{
USkeleton * Skeleton = SkelComp->SkeletalMesh->Skeleton;
// create a bone select actor
if (!BoneSelectActor.IsValid())
{
if (Node.JointTargetLocationSpace == EBoneControlSpace::BCS_BoneSpace ||
Node.JointTargetLocationSpace == EBoneControlSpace::BCS_ParentBoneSpace)
{
int32 JointTargetIndex = Skeleton->GetReferenceSkeleton().FindBoneIndex(Node.JointTargetSpaceBoneName);
if (JointTargetIndex != INDEX_NONE)
{
UWorld* World = SkelComp->GetWorld();
check(World);
BoneSelectActor = World->SpawnActor<ABoneSelectActor>(FVector(0), FRotator(0, 0, 0));
check(BoneSelectActor.IsValid());
}
}
}
if (!BoneSelectActor.IsValid())
{
return;
}
// move the actor's position
if (BoneSelectMode == BSM_JointTarget)
{
FName BoneName;
int32 EffectorBoneIndex = SkelComp->GetBoneIndex(Node.EffectorSpaceBoneName);
if (EffectorBoneIndex != INDEX_NONE)
{
BoneName = Node.EffectorSpaceBoneName;
}
else
{
BoneName = Node.IKBone.BoneName;
}
FVector ActorLocation = ConvertWidgetLocation(SkelComp, AnimNode->ForwardedPose, BoneName, Node.EffectorLocation, Node.EffectorLocationSpace);
BoneSelectActor->SetActorLocation(ActorLocation + FVector(0, 10, 0));
}
else if (BoneSelectMode == BSM_EndEffector)
{
int32 JointTargetIndex = SkelComp->GetBoneIndex(Node.JointTargetSpaceBoneName);
if (JointTargetIndex != INDEX_NONE)
{
FVector ActorLocation = ConvertWidgetLocation(SkelComp, AnimNode->ForwardedPose, Node.JointTargetSpaceBoneName, Node.JointTargetLocation, Node.JointTargetLocationSpace);
BoneSelectActor->SetActorLocation(ActorLocation + FVector(0, 10, 0));
}
}
}
FVector UAnimGraphNode_TwoBoneIK::GetWidgetLocation(const USkeletalMeshComponent* SkelComp, FAnimNode_SkeletalControlBase* AnimNode)
{
EBoneControlSpace Space;
FName BoneName;
FVector Location;
if (BoneSelectMode == BSM_EndEffector)
{
Space = Node.EffectorLocationSpace;
Location = GetNodeValue(FString("EffectorLocation"), Node.EffectorLocation);
BoneName = Node.EffectorSpaceBoneName;
}
else // BSM_JointTarget
{
Space = Node.JointTargetLocationSpace;
if (Space == BCS_WorldSpace || Space == BCS_ComponentSpace)
{
return FVector::ZeroVector;
}
Location = GetNodeValue(FString("JointTargetLocation"), Node.JointTargetLocation);
BoneName = Node.JointTargetSpaceBoneName;
}
return ConvertWidgetLocation(SkelComp, AnimNode->ForwardedPose, BoneName, Location, Space);
}
FVector UAnimGraphNode_Fabrik::GetWidgetLocation(const USkeletalMeshComponent* SkelComp, FAnimNode_SkeletalControlBase* AnimNode)
{
FName& BoneName = Node.EffectorTransformBone.BoneName;
FVector Location = Node.EffectorTransform.GetLocation();
EBoneControlSpace Space = Node.EffectorTransformSpace;
FVector WidgetLoc = ConvertWidgetLocation(SkelComp, AnimNode->ForwardedPose, BoneName, Location, Space);
return WidgetLoc;
}
FVector FFabrikEditMode::GetWidgetLocation() const
{
USkeletalMeshComponent* SkelComp = GetAnimPreviewScene().GetPreviewMeshComponent();
FName& BoneName = GraphNode->Node.EffectorTransformBone.BoneName;
FVector Location = GraphNode->Node.EffectorTransform.GetLocation();
EBoneControlSpace Space = GraphNode->Node.EffectorTransformSpace;
FVector WidgetLoc = ConvertWidgetLocation(SkelComp, RuntimeNode->ForwardedPose, BoneName, Location, Space);
return WidgetLoc;
}
FVector UAnimGraphNode_ModifyBone::GetWidgetLocation(const USkeletalMeshComponent* SkelComp, FAnimNode_SkeletalControlBase* AnimNode)
{
USkeleton* Skeleton = SkelComp->SkeletalMesh->Skeleton;
FVector WidgetLoc = FVector::ZeroVector;
// if the current widget mode is translate, then shows the widget according to translation space
if (CurWidgetMode == FWidget::WM_Translate)
{
FCSPose<FCompactPose>& MeshBases = AnimNode->ForwardedPose;
WidgetLoc = ConvertWidgetLocation(SkelComp, MeshBases, Node.BoneToModify.BoneName, GetNodeValue(FString("Translation"), Node.Translation), Node.TranslationSpace);
if (MeshBases.GetPose().IsValid() && Node.TranslationMode == BMM_Additive)
{
if(Node.TranslationSpace == EBoneControlSpace::BCS_WorldSpace ||
Node.TranslationSpace == EBoneControlSpace::BCS_ComponentSpace)
{
const FMeshPoseBoneIndex MeshBoneIndex(SkelComp->GetBoneIndex(Node.BoneToModify.BoneName));
const FCompactPoseBoneIndex BoneIndex = MeshBases.GetPose().GetBoneContainer().MakeCompactPoseIndex(MeshBoneIndex);
if (BoneIndex != INDEX_NONE)
{
const FTransform& BoneTM = MeshBases.GetComponentSpaceTransform(BoneIndex);
WidgetLoc += BoneTM.GetLocation();
}
}
}
}
else // if the current widget mode is not translate mode, then show the widget on the bone to modify
{
int32 MeshBoneIndex = SkelComp->GetBoneIndex(Node.BoneToModify.BoneName);
if (MeshBoneIndex != INDEX_NONE)
{
const FTransform BoneTM = SkelComp->GetBoneTransform(MeshBoneIndex);
WidgetLoc = BoneTM.GetLocation();
}
}
return WidgetLoc;
}