def go(self):
plotter = Plotter("outdir", "sim", clean=False)
grid = Grid(plotter)
for num_of_agents in poisson.rvs(5, size=42):
agents = [Agent.build() for i in xrange(num_of_agents)]
# print agents
print "\nStep {0}\n".format(self.step)
grid.push(agents)
grid.tick()
self.step += 1
