def evolve(self):
# update level 1, 2 and 3 location scores
for l in self.locations:
l.time = self.time
l.updateLocationScore()
for l in self.locations:
l.updateNeighbourhoodScore()
for l in self.locations:
l.updateRegionScore()
# update agent locations
for a in self.agents:
a.evolve()
for a in self.agents:
a.finish_travel()
a.timesteps_since_departure += 1
a.recent_travel_distance = (
a.recent_travel_distance +
(a.distance_moved_this_timestep /
SimulationSettings.MaxMoveSpeed)) / 2.0
a.distance_moved_this_timestep = 0
# update link properties
if SimulationSettings.CampLogLevel > 0:
self._aggregate_arrivals()
if SimulationSettings.AgentLogLevel > 0:
write_agents(self.agents, self.time)
self.time += 1
def evolve(self) :
for l in self.locations :
l.time = self.time
l.updateLocationScore()
for l in self.locations :
l.updateNeighbourhoodScore()
for l in self.locations :
l.updateRegionScore()
'''
Divide groups into to two at 5% of all locations, at each time step
'''
locs=[gr.location for gr in self.agents if not isinstance(gr.location, Link )]
sample_locs=random.sample(list(locs),int(len(locs)*0.005))
for loc in sample_locs:
all_group_locs = [group for group in self.agents if group.location==loc ]
old_group=random.choice(all_group_locs)
size_of_old_group = old_group.size
rand=random.random()
new_size1 = int(size_of_old_group*rand)
new_size2 = int(size_of_old_group*(1-rand))
# remove old group from the location and two new ones
[old_group.location.DecrementNumAgents() for i in range(size_of_old_group)]
self.addAgent(old_group.location, new_size1)
self.addAgent(old_group.location, new_size2)
for a in self.agents :
a.evolve()
for a in self.agents :
a.finish_travel()
a.timesteps_since_departure += 1
a.recent_travel_distance = (a.recent_travel_distance + (
a.distance_moved_this_timestep / a.move_speed)) / 2.0
a.distance_moved_this_timestep = 0
# update link properties
if SimulationSettings.CampLogLevel > 0 :
self._aggregate_arrivals()
if SimulationSettings.AgentLogLevel > 0 :
write_agents(self.agents, self.time)
self.time += 1