Airport.py

import random
import math

from ManagerBase import *

MAX_X = 90
MAX_Y = 180

# Airport part
class Airport:
    """
    Class representing an airport.
    """
    def __init__(self, x=None, y=None):
        if x is None:
            self._x = random.uniform(-1, 1) * MAX_X
        else:
            self._x = x

        if y is None:
            self._y = random.uniform(-1, 1) * MAX_Y
        else:
            self._y = y

        self._index = 0
        
    @property
    def x(self):
        return self._x
    
    @property
    def y(self):
        return self._y

    @property
    def index(self):
        return self._index

    def set_index(self, index):
        self._index = index

    def distance_to_airport(self, a, real_distance=True):
        if real_distance:
            R = 6371000 # metres
            lat1 = self.x / 180 * math.pi
            lat2 = a.x / 180 * math.pi
            d_lat = (a.x-self.x) / 180 * math.pi
            d_lon = (a.y-self.y) / 180 * math.pi

            a2 = math.sin(d_lat/2) ** 2 + math.cos(lat1) * math.cos(lat2) * math.sin(d_lon/2) ** 2
            c = 2 * math.atan2(math.sqrt(a2), math.sqrt(1-a2))

            distance = R * c # meters

        else:
            xDistance = math.fabs(a.x - self.x)
            yDistance = math.fabs(a.y - self.y)
            distance = math.sqrt(xDistance ** 2 + yDistance ** 2)

        return distance

    def __repr__(self):
        return 'Airport #{} x: {:6.2f} y: {:6.2f}'.format(self._index, self._x, self._y)

class AirportManager(ManagerBase):
    """
    Class representing an airport manager.
    """
    def __init__(self):
        super(AirportManager, self).__init__()