vely = DBNTable[closestIndexDBNTable,3]
vel = math.sqrt(velx*velx+vely*vely)
return vel
####################################################################################################
# program starts here
####################################################################################################
env = Environment()
env.CreateEnvironment()
drone = Agent(0,0,n = 'drone')
env.AddAgent(drone)
chosen_dbn = Agent(0,0, c = 'k', n = 'choosen')
env.AddAgent(chosen_dbn)
target = Target(0,15)
env.AddTarget(target)
#car = Agent(0,0,'g','s',10,n = 'car')
reward = 0
# minimum distance we have to consider to be on the target
targetThreshold = 0.8 #2.0#0.5
bad_ending = 0
