PyCafe - Solara - Car Simulation with Mesa and Solara

app.py
requirements.txt
app.py
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from mesa import Agent
from mesa import Model
from mesa.examples.basic.conways_game_of_life.agents import Cell
from mesa.space import HexSingleGrid
from mesa.examples.basic.conways_game_of_life.model import ConwaysGameOfLife
from mesa.visualization import (
    SolaraViz,
    make_space_component,
)
import numpy as np
import matplotlib.pyplot as plt
import solara
from matplotlib import image
import matplotlib
# from svgpathtools import svg2paths
# from svgpath2mpl import parse_path


# planet_path, attributes = svg2paths('car.svg')
# planet_marker = parse_path(attributes[0]['d'])
# planet_marker.vertices -= planet_marker.vertices.mean(axis=0)
# planet_marker = planet_marker.transformed(matplotlib.transforms.Affine2D().rotate_deg(180))
# planet_marker = planet_marker.transformed(matplotlib.transforms.Affine2D().scale(-1,1))


class Car(Agent):
    def __init__(self, pos, model):
        super().__init__(model)
        self.x, self.y = pos

    def drive(self):
        
        # self.x += np.random.randint(0, 2)
        self.x +=1
        self.model.grid.move_agent(self, (self.x, self.y))

    @property
    def neighbors(self):
        return self.model.grid.iter_neighbors((self.x, self.y), True)


class CarSimulation(Model):

    def __init__(self, width=50, height=2, amount=10, seed=None):
        super().__init__(seed=seed)
        self.grid = HexSingleGrid(width, height, torus=True)

        for i in range(amount):
            cell = Car((i*2, 0), self)
            self.grid.place_agent(cell, (i*2, 0))

        self.running = True

    def step(self):
        self.agents.do("drive")
def agent_portrayal(agent):
    
    if (isinstance(agent, Car)):
        return {
        "color": "red",
        "marker": "8",  # hexagon
        "size": 50,
    }

    

def post_process(ax):
    ax.set_aspect("equal")
    ax.set_xticks([])
    ax.set_yticks([])
    ax.set_facecolor("gray")


model_params = {
    "seed": {
        "type": "InputText",
        "value": 42,
        "label": "Random Seed",
    },
    "width": {
        "type": "SliderInt",
        "value": 50,
        "label": "Width",
        "min": 5,
        "max": 600,
        "step": 1,
    },
    "height": {
        "type": "SliderInt",
        "value": 50,
        "label": "Height",
        "min": 5,
        "max": 60,
        "step": 1,
    },

}


model1 = CarSimulation()



SpaceGraph = make_space_component(
    agent_portrayal, post_process=post_process, draw_grid=False 
)

page = SolaraViz(
    model1,
    components=[SpaceGraph],
    model_params=model_params,
    name="Car Simulation",
)
page
Py.Cafe

car-simulation-mesa-solara

Car Simulation with Mesa and Solara
