Serge NOEL
78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
# This sample Automaton watches a Sensor, and adjusts
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# the momentum of a locomotive using ops-mode programming
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# when the sensor state changes.
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#
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# The sensor and decoder are hardcoded, as this is
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# an example of just the Automaton function. Adding a GUI
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# to configure these would be straight-forward. The values
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# could be passed via the constructor, or the constructor
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# (which can run in any required thread) could invoke
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# a dialog.
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# Author: Bob Jacobsen, copyright 2004, 2005
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# Part of the JMRI distribution
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import jmri
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class OpsProgExample(jmri.jmrit.automat.AbstractAutomaton) :
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#
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# By default, monitors sensor "32" and controls locomotive 1234(long address).
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#
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#
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def init(self) :
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# set some default values
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self.sensorName = "32"
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self.locoNumber = 1234
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self.longAddress = True
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# get references to sample layout objects
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self.sensor = sensors.provideSensor(self.sensorName)
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self.programmer = jmri.InstanceManager.getDefault(jmri.AddressedProgrammerManager).getAddressedProgrammer(self.longAddress, self.locoNumber)
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# get initial state and set the CV as needed
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self.now = self.sensor.getKnownState()
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self.setMomentum()
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return
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#
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# Watch "sensor", and when it changes the momentum CV to match.
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# Always returns true to continue operation
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def handle(self) :
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# wait until the sensor changes state
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self.waitSensorChange(self.now, self.sensor)
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# get new value
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self.now = self.sensor.getKnownState()
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# match the decoder's momentum
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self.setMomentum()
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return True; # never terminate voluntarily
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# Set CV3, acceleration momentum, to match the sensor state.
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# When the sensor is active, set the momentum to 30;
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# when inactive, set the momentum to 0.
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def setMomentum(self) :
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if (self.now == ACTIVE) :
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self.programmer.writeCV("3", 30, None)
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else :
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self.programmer.writeCV("3", 0, None)
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return
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# end of class definition
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# create one of these
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a = OpsProgExample()
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# set the name, as a example of configuring it
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a.setName("ops programming sample script")
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# and start it running
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a.start()
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