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soil/examples/mesa/server.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

109 lines
2.8 KiB
Python

from mesa.visualization.ModularVisualization import ModularServer
from soil.visualization import UserSettableParameter
from mesa.visualization.modules import ChartModule, NetworkModule, CanvasGrid
from social_wealth import MoneyEnv, graph_generator, SocialMoneyAgent
import networkx as nx
class MyNetwork(NetworkModule):
def render(self, model):
return self.portrayal_method(model)
def network_portrayal(env):
# The model ensures there is 0 or 1 agent per node
portrayal = dict()
wealths = {node_id: data['agent'].wealth for (node_id, data) in env.G.nodes(data=True)}
portrayal["nodes"] = [
{
"id": node_id,
"size": 2*(wealth+1),
"color": "#CC0000" if wealth == 0 else "#007959",
# "color": "#CC0000",
"label": f"{node_id}: {wealth}",
} for (node_id, wealth) in wealths.items()
]
portrayal["edges"] = [
{"id": edge_id, "source": source, "target": target, "color": "#000000"}
for edge_id, (source, target) in enumerate(env.G.edges)
]
return portrayal
def gridPortrayal(agent):
"""
This function is registered with the visualization server to be called
each tick to indicate how to draw the agent in its current state.
:param agent: the agent in the simulation
:return: the portrayal dictionary
"""
color = max(10, min(agent.wealth*10, 100))
return {
"Shape": "rect",
"w": 1,
"h": 1,
"Filled": "true",
"Layer": 0,
"Label": agent.unique_id,
"Text": agent.unique_id,
"x": agent.pos[0],
"y": agent.pos[1],
"Color": f"rgba(31, 10, 255, 0.{color})"
}
grid = MyNetwork(network_portrayal, 500, 500)
chart = ChartModule(
[{"Label": "Gini", "Color": "Black"}], data_collector_name="datacollector"
)
model_params = {
"N": UserSettableParameter(
"slider",
"N",
5,
1,
10,
1,
description="Choose how many agents to include in the model",
),
"height": UserSettableParameter(
"slider",
"height",
5,
5,
10,
1,
description="Grid height",
),
"width": UserSettableParameter(
"slider",
"width",
5,
5,
10,
1,
description="Grid width",
),
"agent_class": UserSettableParameter('choice', 'Agent class', value='MoneyAgent',
choices=['MoneyAgent', 'SocialMoneyAgent']),
"generator": graph_generator,
}
canvas_element = CanvasGrid(gridPortrayal,
model_params["width"].value,
model_params["height"].value, 500, 500)
server = ModularServer(
MoneyEnv, [grid, chart, canvas_element], "Money Model", model_params
)
server.port = 8521
server.launch(open_browser=False)