Serge NOEL
72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
# ----- release one if both held in sidings ------
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# This is noticed when we see the blocks at the end
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# of the main & sidings go OCCUPIED
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import java
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import java.beans
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class ReleaseFromSidings(java.beans.PropertyChangeListener):
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# to1, to2 are turnout objects; block1, block2 are corresponding
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# blocks behind them; state1, state2 are TO states (CLOSED, THROWN)
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# when the loco will stall in block1, block2 respectively
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#
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# This listener must be attached to both blocks, because it
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# releases when the second one goes occupied
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def propertyChange(self, event):
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if event.propertyName != "state" : return # only property changes
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# proper event, check for condition
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if ( self.to1.knownState == self.state1 and self.block1.state == jmri.Block.OCCUPIED
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and self.to2.knownState == self.state2 and self.block2.state == jmri.Block.OCCUPIED ) :
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# both blocks occupied, OK to release the 2nd one
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print "ReleaseFromSidings toggles "+self.to1.getSystemName()+" "+self.to2.getSystemName()
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if self.state1 == THROWN :
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self.to1.commandedState = CLOSED
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else :
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self.to1.commandedState = THROWN
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if self.state2 == THROWN :
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self.to2.commandedState = CLOSED
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else :
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self.to2.commandedState = THROWN
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return
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# create, load, and attach these
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s = ReleaseFromSidings()
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s.to1 = turnouts.getTurnout("LT201")
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s.to2 = turnouts.getTurnout("LT202")
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s.block1 = IB161
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s.block2 = IB155
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s.state1 = CLOSED
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s.state2 = CLOSED
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s.block1.addPropertyChangeListener(s)
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s.block2.addPropertyChangeListener(s)
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s = ReleaseFromSidings()
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s.to1 = turnouts.getTurnout("LT201")
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s.to2 = turnouts.getTurnout("LT202")
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s.block1 = IB160
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s.block2 = IB155
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s.state1 = THROWN
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s.state2 = CLOSED
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s.block1.addPropertyChangeListener(s)
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s.block2.addPropertyChangeListener(s)
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s = ReleaseFromSidings()
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s.to1 = turnouts.getTurnout("LT201")
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s.to2 = turnouts.getTurnout("LT202")
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s.block1 = IB161
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s.block2 = IB154
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s.state1 = CLOSED
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s.state2 = THROWN
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s.block1.addPropertyChangeListener(s)
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s.block2.addPropertyChangeListener(s)
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s = ReleaseFromSidings()
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s.to1 = turnouts.getTurnout("LT201")
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s.to2 = turnouts.getTurnout("LT202")
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s.block1 = IB160
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s.block2 = IB154
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s.state1 = THROWN
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s.state2 = THROWN
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s.block1.addPropertyChangeListener(s)
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s.block2.addPropertyChangeListener(s)
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