MomSampler Node1 MomSampler + m_val + MomSampler() + ~MomSampler() + shoot() Node2 ConstSampler + ConstSampler() + ConstSampler() + ~ConstSampler() + shoot() Node2->Node1 +m_mass Node3 Sampler + m_val + m_random + Sampler() + ~Sampler() + shoot() Node3->Node2