e9a9e00112
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1260 fd906abe-77d9-0310-91a1-e0d9ade77398
55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
#
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# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Base classes for state and state manipulations using a float-based state.
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$Id$
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"""
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from zope.interface import implements
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from cybertools.brain.interfaces import IState, ITransition
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class State(object):
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""" The state of a neuron.
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"""
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implements(IState)
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def __init__(self, value=0.0):
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self.value = value
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def __repr__(self):
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return '<State %0.1f>' % self.value
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class Transition(object):
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implements(ITransition)
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def __init__(self, synapsis, factor=1.0):
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self.synapsis = synapsis
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self.factor = factor
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def execute(self, transaction=None):
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oldState = self.synapsis.receiver.getState(transaction)
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senderState = self.synapsis.sender.getState(transaction)
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return State(oldState.value + senderState.value * self.factor)
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