curve -p 0 10 0 -p 5 0 0 -p 5 0 5 -p 0 0 5;
createNode FurrySystemNode -n furry;
connectAttr time1.outTime furry.time;
connectAttr curveShape1.local furry.input_curve;
connectAttr furry.output_curve curveShape1.create

MStatus FurrySystemNode::compute(const MPlug& plug, MDataBlock& data) {
  if (plug == output_curve) {
    cout << "Computing input_curven";

    MStatus stat;
    MDataHandle handle = data.inputValue(input_curve, &stat);
    MDataHandle output_handle = data.outputValue(output_curve, &stat);
    McheckErr(stat, "Failed at getting data.inputValuen");
    MObject curve_obj = handle.data();

    MFnNurbsCurve curve_fn(curve_obj, &stat);
    McheckErr(stat, "Failed at creating the MFnNurbsCurve function setn"); // Fails here

    MPointArray cvs;
    stat = curve_fn.getCVs(cvs, MSpace::kWorld);
    for (int i = 0; i < cvs.length(); i++) {
      cvs[i] += MPoint(i, 0, 0);
    }

    curve_fn.setCVs(cvs, MSpace::kWorld);
    curve_fn.updateCurve(); // Don't think this one is needed
    output_handle.set(curve_obj);
    stat = data.setClean(plug);
    McheckErr(stat, "Failed at cleaning datan");
  }
  return MS::kSuccess;
}