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soil/examples/custom_generator/generator_sim.py
J. Fernando Sánchez feab0ba79e Large set of changes for v0.30
The examples weren't being properly tested in the last commit. When we fixed
that a lot of bugs in the new implementation of environment and agent were
found, which accounts for most of these changes.

The main difference is the mechanism to load simulations from a configuration
file. For that to work, we had to rework our module loading code in
`serialization` and add a `source_file` attribute to configurations (and
simulations, for that matter).
2023-04-14 19:41:24 +02:00

39 lines
1004 B
Python

from networkx import Graph
import random
import networkx as nx
from soil import Simulation, Environment, CounterModel, parameters
def mygenerator(n=5, n_edges=5):
"""
Just a simple generator that creates a network with n nodes and
n_edges edges. Edges are assigned randomly, only avoiding self loops.
"""
G = nx.Graph()
for i in range(n):
G.add_node(i)
for i in range(n_edges):
nodes = list(G.nodes)
n_in = random.choice(nodes)
nodes.remove(n_in) # Avoid loops
n_out = random.choice(nodes)
G.add_edge(n_in, n_out)
return G
class GeneratorEnv(Environment):
"""Using a custom generator for the network"""
generator: parameters.function = staticmethod(mygenerator)
def init(self):
self.create_network(generator=self.generator, n=10, n_edges=5)
self.add_agents(CounterModel)
sim = Simulation(model=GeneratorEnv, max_steps=10, interval=1)
if __name__ == '__main__':
sim.run(dump=False)