# This is an example script for a JMRI "Automat" in Python
# It is based on the AutomatonExample.
#
# It runs a locomotive back and forth using time delays. 
#
# Times are in milliseconds
#
# Author: Bob Jacobsen, July 2008
# Based on BackAndForth.py 
# Author: Howard Watkins, January 2007
# Part of the JMRI distribution
#
# The next line is maintained by CVS, please don't change it
# $Revision: 1.1 $

import jarray
import jmri

class BackAndForthTimed(jmri.jmrit.automat.AbstractAutomaton) :

	def init(self):
		# init() is called exactly once at the beginning to do
		# any necessary configuration.
		print "Inside init(self)"

		# get loco address. For long address change "False" to "True" 
		self.throttle = self.getThrottle(14, False)  # short address 14

		return

	def handle(self):
		# handle() is called repeatedly until it returns false.
		print "Inside handle(self)"

		# set loco to forward
		print "Set Loco Forward"
		self.throttle.setIsForward(True)
		
		# wait 1 second for engine to be stopped, then set speed
		self.waitMsec(1000)                 
		print "Set Speed"
		self.throttle.setSpeedSetting(0.7)

		# wait for run time in forward direction
		print "Wait for forward time"
		self.waitMsec(10000)
		
		# stop the engine
		print "Set Speed Stop"
		self.throttle.setSpeedSetting(0)

		# delay for a time (remember loco could still be moving
		# due to simulated or actual inertia). 
		print "wait 3 seconds"
		self.waitMsec(3000) 
		
		# set direction to reverse, set speed
		print "Set Loco Reverse"
		self.throttle.setIsForward(False)
		self.waitMsec(1000)                 # wait 1 second for Xpressnet to catch up
		print "Set Speed"
		self.throttle.setSpeedSetting(0.7)

		# wait for run time in reverse direction
		print "Wait for reverse time"
		self.waitMsec(10000)
		print "Set Speed Stop"
		self.throttle.setSpeedSetting(0)
		
		# delay for a time (remember loco could still be moving
		# due to simulated or actual inertia). Time is in milliseconds
		print "wait 3 seconds"
		self.waitMsec(3000)
		
		# and continue around again
		print "End of Loop"
		return 1	
		# (requires JMRI to be terminated to stop - caution
		# doing so could leave loco running if not careful)

# end of class definition

# start one of these up
BackAndForthTimed().start()