Serge NOEL
91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
# ----- blow for a pass ------
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# Wait for a passing situation, then
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# blow the horn
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# wait for clear
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# thrown the turnout behind
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import jarray
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class Passing(jmri.jmrit.automat.Siglet):
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# to is the turnout for the pass
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# state is the needed TO setting
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# block1 is the stopped train
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# block2 is the passing train
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# tosensor is the OS
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def defineIO(self):
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self.setInputs(jarray.array([self.block1, self.block2], jmri.NamedBean))
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return
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def setOutput(self):
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# start because one of the blocks is changed
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# check that TO is set for this case
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if self.to.knownState!=self.state : return
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if self.block1.state != jmri.Block.OCCUPIED : return
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if self.block2.state != jmri.Block.OCCUPIED : return
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# both blocks occupied; pass is happening!
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print "Handle passing situation at "+self.tosensor.systemName
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# Turn on whistle
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self.block2.getValue().setF2(True)
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# wait for TO sensor active, then turn off horn
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self.waitSensorActive(self.tosensor)
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print "Turn off horn"
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self.block2.getValue().setF2(False)
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# wait for TO to be empty, then set
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self.waitSensorInactive(self.tosensor)
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print "Setting TO to allow train to leave"
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if self.state == THROWN :
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self.to.commandedState = CLOSED
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else :
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self.to.commandedState = THROWN
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# blow the whistle on the starting loco
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self.waitMsec(500)
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self.block1.getValue().setF2(True)
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self.waitMsec(1000)
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self.block1.getValue().setF2(False)
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self.waitMsec(1000)
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self.block1.getValue().setF2(True)
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self.waitMsec(1000)
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self.block1.getValue().setF2(False)
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# wait for permission from somebody else to move.
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# You'll know that happens when the TO shows occupied, then not
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self.waitSensorActive(self.tosensor)
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self.waitSensorInactive(self.tosensor)
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self.to.commandedState = CLOSED
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print "Sequence complete"
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# return to wait for next change
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return
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# create, load, and attach these
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s = Passing()
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s.to = turnouts.getTurnout("LT201")
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s.tosensor = sensors.getSensor("LS163")
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s.block1 = IB161 # stopped
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s.block2 = IB160 # passing
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s.state = CLOSED # for the pass
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s.start()
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s = Passing()
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s.to = turnouts.getTurnout("LT201")
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s.tosensor = sensors.getSensor("LS163")
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s.block1 = IB160 # stopped
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s.block2 = IB161 # passing
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s.state = THROWN # for the pass
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s.start()
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s = Passing()
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s.to = turnouts.getTurnout("LT202")
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s.tosensor = sensors.getSensor("LS164")
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s.block1 = IB155 # stopped
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s.block2 = IB154 # passing
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s.state = CLOSED # for the pass
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s.start()
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s = Passing()
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s.to = turnouts.getTurnout("LT202")
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s.tosensor = sensors.getSensor("LS164")
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s.block1 = IB154 # stopped
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s.block2 = IB155 # passing
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s.state = THROWN # for the pass
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s.start()
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