C++ (Cpp) USkeleton::PreEditChange Examples

Example #1

File: UEPySkeletal.cpp Project: rdsgautier/UnrealEnginePython

PyObject *py_ue_skeleton_add_bone(ue_PyUObject *self, PyObject * args)
{

	ue_py_check(self);

	char *name;
	int parent_index;
	PyObject *py_transform;
	if (!PyArg_ParseTuple(args, "siO:skeleton_add_bone", &name, &parent_index, &py_transform))
		return nullptr;

	USkeleton *skeleton = ue_py_check_type<USkeleton>(self);
	if (!skeleton)
		return PyErr_Format(PyExc_Exception, "uobject is not a USkeleton");

	ue_PyFTransform *transform = py_ue_is_ftransform(py_transform);
	if (!transform)
		return PyErr_Format(PyExc_Exception, "argument is not a FTransform");

	if (skeleton->GetReferenceSkeleton().FindBoneIndex(FName(UTF8_TO_TCHAR(name))) > -1)
	{
		return PyErr_Format(PyExc_Exception, "bone %s already exists", name);
	}

#if WITH_EDITOR
	skeleton->PreEditChange(nullptr);
#endif

	{
		const FReferenceSkeleton &ref = skeleton->GetReferenceSkeleton();
		// horrible hack to modify the skeleton in place
		FReferenceSkeletonModifier modifier((FReferenceSkeleton &)ref, skeleton);

		TCHAR *bone_name = UTF8_TO_TCHAR(name);

		modifier.Add(FMeshBoneInfo(FName(bone_name), FString(bone_name), parent_index), transform->transform);
	}


#if WITH_EDITOR
	skeleton->PostEditChange();
#endif
	skeleton->MarkPackageDirty();

	return PyLong_FromLong(skeleton->GetReferenceSkeleton().FindBoneIndex(FName(UTF8_TO_TCHAR(name))));
}