def interaction(self, indiv, partner):
" Interaction between individuals "
PerceivedSignal = ET.noise_mult(partner.signal(), self['Noise'])
PartnerPerceivedSignal = ET.noise_mult(indiv.signal(), self['Noise'])
#indiv.get_friend(PerceivedSignal, partner, PartnerPerceivedSignal)
# Suppression du gene Demande : bruit ???
#return
if PerceivedSignal >= indiv.demand() and PartnerPerceivedSignal >= partner.demand():
indiv.acquainted(partner)
