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#!/usr/bin/python3 |
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""" |
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File for handling scooter data. |
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Scooter's status id: |
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1- Available |
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2- Unavailable |
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3- Maintenance |
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4- Charging |
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7- Running |
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scooter's data |
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data = { |
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"id": "1", # scooter id (str) |
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"lat": 59.174586, # coordinates (float) |
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"lon": 17.602334, # coordinates (float) |
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"speed": 0, # km/h (int) |
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"battery": 0, # % (int) |
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"status": "7" # status id (str) |
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"station": "1" # station id (str) |
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} |
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city's data |
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city = { |
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"id": "2", # citys id (str) |
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"area": 25.84, # km² (float) |
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"lat": 59.19554, # coordinates (float) |
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"lon": 17.62525 # coordinates (float) |
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} |
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""" |
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import math |
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import random |
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import re |
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from geopy.distance import geodesic, distance |
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class Scooter(): |
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""" Scooter class """ |
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## scooter's data |
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data = {} |
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## city's data |
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city = {} |
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## scooter's new coordinates |
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location = "" |
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## station name |
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station = "" |
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def __init__(self) -> None: |
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""" Initialize class """ |
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def __str__(self) -> str: |
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""" Returns scooters data """ |
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return "Scooter id: {0}\nLocation: {1}, {2}\nSpeed: {3}km/h\nBattery: {4}%".format( |
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self.data["id"], |
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self.data["lat"], |
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self.data["lon"], |
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self.data["speed"], |
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self.data["battery"], |
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) |
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def check_scooter_status(self, scooter: dict) -> bool: |
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""" |
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Returns true if the scooter is available and adds the scooter's |
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data to data dictionary. Status id 7 means 'Running'. |
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""" |
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if scooter["status"]["status"] == "Available": |
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self.add_scooter_to_dict(scooter) |
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return True |
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return False |
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def add_scooter_to_dict(self, scooter: dict) -> None: |
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""" Adds scooter's data to the dictionary. Status id 7 means 'Running'. """ |
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self.data["id"] = scooter["id"] |
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self.data["lat"] = float(scooter['latitude']) |
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self.data["lon"] = float(scooter['longitude']) |
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self.data["speed"] = int(scooter['speed']) |
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self.data["battery"] = int(scooter['battery']) |
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self.data["status"] = "7" |
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self.station = scooter["station"]["station_name"] |
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def add_city_to_dict(self, city: dict): |
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""" Adds scooter's data to the dictionary. Status id 7 means 'Running'. """ |
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self.city["id"] = city["id"] |
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self.city["lat"] = float(city['latitude']) |
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self.city["lon"] = float(city['longitude']) |
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self.city["area"] = float(city['area']) |
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def get_zone_id(self) -> str: |
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""" |
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Returns zone id depending on the station's name type. |
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id => 1- Charging, 2- Parking, 3-Bike, 4- Maintenance zones |
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""" |
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result = "" |
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if "Charging" in self.station: |
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result = "1" |
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elif "Parking" in self.station: |
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result = "2" |
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elif "Bike" in self.station: |
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result = "3" |
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else: |
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result = "4" |
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return result |
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def set_station_id(self, station: dict) -> None: |
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""" Add stations id to scooters data dictionary. """ |
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self.data["station"] = station["id"] |
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def move_scooter(self) -> None: |
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""" |
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Move the scooter from one position to another and reduce battery level. |
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Max scooter speed is 20km/h. |
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""" |
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## get random speed |
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speed = random.randrange(1, 21) |
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points = re.split("Point|, ", self.location) |
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self.data["lat"] = float(points[1][1:]) |
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self.data["lon"] = float(points[2]) |
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self.data["speed"] = speed |
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self.data["battery"] -= 1 |
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def change_location(self) -> None: |
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""" |
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Get random location inside the city zone. |
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Speed = distance ÷ time => distance = speed * time |
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Bearing in degrees: North: 0, East: 90, South: 180, West: 270. |
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""" |
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## 5 seconds is sleep time, scooter moves every 5 seconds |
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## but for better simulation I increase it to 15 seconds |
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distance_km = self.data["speed"] * (15 / 3600) |
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## get random position |
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bearing = random.randint(0, 3) |
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degrees = [0, 90, 180, 270] |
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new_location = repr(distance(kilometers = distance_km).destination( |
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(self.data["lat"], self.data["lon"]), |
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bearing = degrees[bearing]) |
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) |
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self.location = new_location |
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def stop_scooter(self, status = "7") -> None: |
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""" Stop the scooter from running. Change status and speed. """ |
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self.data["status"] = status |
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self.data["speed"] = 0 |
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def check_battery(self) -> bool: |
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""" Returns True if the battery level < 20%. """ |
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return self.data["battery"] < 20 |
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def move_to_station(self, station: dict) -> None: |
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""" Move the scooter to charging/maintenance station. """ |
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self.data["lat"] = float(station["latitude"]) |
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self.data["lon"] = float(station["longitude"]) |
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self.data["station"] = station["id"] |
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@staticmethod |
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def check_maintenance() -> bool: |
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""" |
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Returns true if the random number is 1 otherwise False, since scooters are not |
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real, the maintenance check will be randomly. |
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The probability that the scooter receives maintenance is 10%. |
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""" |
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probability = random.randint(1, 10) |
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return probability == 1 |
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def check_scooter_in_city(self) -> bool: |
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""" |
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Check if scooter is inside the city zone. If the distance between |
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two points 'city center and scooter' <= circle radius return True. |
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""" |
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## Circle Area = pi * r^2 => r^2 = A/pi |
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radius = math.sqrt((self.city["area"] / math.pi)) |
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scooter = (self.data["lat"], self.data["lon"]) |
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city = (self.city["lat"], self.city["lon"]) |
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calculate = geodesic(scooter, city).km |
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if calculate <= radius: |
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return True |
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return False |
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Rahn20 /
spark-program
