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soil/tests/test_mesa.py
J. Fernando Sánchez d9947c2c52 WIP: all tests pass
Documentation needs some improvement

The API has been simplified to only allow for ONE topology per
NetworkEnvironment.
This covers the main use case, and simplifies the code.
2022-10-16 17:56:23 +02:00

72 lines
1.9 KiB
Python

"""
Mesa-SOIL integration tests
We have to test that:
- Mesa agents can be used in SOIL
- Simplified soil agents can be used in mesa simulations
- Mesa and soil agents can interact in a simulation
- Mesa visualizations work with SOIL simulations
"""
from mesa import Agent, Model
from mesa.time import RandomActivation
from mesa.space import MultiGrid
class MoneyAgent(Agent):
"""An agent with fixed initial wealth."""
def __init__(self, unique_id, model):
super().__init__(unique_id, model)
self.wealth = 1
def step(self):
self.move()
if self.wealth > 0:
self.give_money()
def give_money(self):
cellmates = self.model.grid.get_cell_list_contents([self.pos])
if len(cellmates) > 1:
other = self.random.choice(cellmates)
other.wealth += 1
self.wealth -= 1
def move(self):
possible_steps = self.model.grid.get_neighborhood(
self.pos, moore=True, include_center=False
)
new_position = self.random.choice(possible_steps)
self.model.grid.move_agent(self, new_position)
class MoneyModel(Model):
"""A model with some number of agents."""
def __init__(self, N, width, height):
self.num_agents = N
self.grid = MultiGrid(width, height, True)
self.schedule = RandomActivation(self)
# Create agents
for i in range(self.num_agents):
a = MoneyAgent(i, self)
self.schedule.add(a)
# Add the agent to a random grid cell
x = self.random.randrange(self.grid.width)
y = self.random.randrange(self.grid.height)
self.grid.place_agent(a, (x, y))
def step(self):
"""Advance the model by one step."""
self.schedule.step()
# model = MoneyModel(10)
# for i in range(10):
# model.step()
# agent_wealth = [a.wealth for a in model.schedule.agents]