int32 USkeleton::BuildLinkup(const USkeletalMesh* InSkelMesh)
{
const FReferenceSkeleton& SkeletonRefSkel = ReferenceSkeleton;
const FReferenceSkeleton& MeshRefSkel = InSkelMesh->RefSkeleton;
// @todoanim : need to refresh NULL SkeletalMeshes from Cache
// since now they're autoweak pointer, they will go away if not used
// so whenever map transition happens, this links will need to clear up
FSkeletonToMeshLinkup NewMeshLinkup;
// First, make sure the Skeleton has all the bones the SkeletalMesh possesses.
// This can get out of sync if a mesh was imported on that Skeleton, but the Skeleton was not saved.
const int32 NumMeshBones = MeshRefSkel.GetNum();
NewMeshLinkup.MeshToSkeletonTable.Empty(NumMeshBones);
NewMeshLinkup.MeshToSkeletonTable.AddUninitialized(NumMeshBones);
for (int32 MeshBoneIndex = 0; MeshBoneIndex < NumMeshBones; MeshBoneIndex++)
{
const FName MeshBoneName = MeshRefSkel.GetBoneName(MeshBoneIndex);
int32 SkeletonBoneIndex = SkeletonRefSkel.FindBoneIndex(MeshBoneName);
#if WITH_EDITOR
// If we're in editor, and skeleton is missing a bone, fix it.
// not currently supported in-game.
if (SkeletonBoneIndex == INDEX_NONE)
{
FMessageDialog::Open(EAppMsgType::Ok, FText::Format(LOCTEXT("SkeletonBuildLinkupMissingBones", "The Skeleton {0}, is missing bones that SkeletalMesh {1} needs. They will be added now. Please save the Skeleton!"), FText::FromString(GetNameSafe(this)), FText::FromString(GetNameSafe(InSkelMesh))));
// Re-add all SkelMesh bones to the Skeleton.
MergeAllBonesToBoneTree(InSkelMesh);
// Fix missing bone.
SkeletonBoneIndex = SkeletonRefSkel.FindBoneIndex(MeshBoneName);
}
#endif
NewMeshLinkup.MeshToSkeletonTable[MeshBoneIndex] = SkeletonBoneIndex;
}
const int32 NumSkeletonBones = SkeletonRefSkel.GetNum();
NewMeshLinkup.SkeletonToMeshTable.Empty(NumSkeletonBones);
NewMeshLinkup.SkeletonToMeshTable.AddUninitialized(NumSkeletonBones);
for (int32 SkeletonBoneIndex=0; SkeletonBoneIndex<NumSkeletonBones; SkeletonBoneIndex++)
{
const int32 MeshBoneIndex = MeshRefSkel.FindBoneIndex( SkeletonRefSkel.GetBoneName(SkeletonBoneIndex) );
NewMeshLinkup.SkeletonToMeshTable[SkeletonBoneIndex] = MeshBoneIndex;
}
int32 NewIndex = LinkupCache.Add(NewMeshLinkup);
check (NewIndex != INDEX_NONE);
SkelMesh2LinkupCache.Add(InSkelMesh, NewIndex);
return NewIndex;
}
bool USkeleton::RecreateBoneTree(USkeletalMesh* InSkelMesh)
{
if( InSkelMesh )
{
// regenerate Guid
RegenerateGuid();
BoneTree.Empty();
ReferenceSkeleton.Empty();
return MergeAllBonesToBoneTree(InSkelMesh);
}
return false;
}