HW11: Andrei Kot

src/task_11_1.py

@@ -0,0 +1,296 @@
+"""Создать пять классов описывающие реальные объекты. Каждый класс
+должен содержать минимум три приватных атрибута, конструктор, геттеры
+и сеттеры для каждого атрибута, два метода."""
+
+import math
+
+
+class Circle:
+    def __init__(self, x0=0, y0=0, r=0):
+        """
+
+        :param x0: center position of circle on x-axis
+        :param y0: center position of circle on y-axis
+        :param r: circle radius
+        """
+        self.__x0 = x0
+        self.__y0 = y0
+        self.__r = r
+
+    @property
+    def x0(self):
+        return self.__x0
+
+    @x0.setter
+    def x0(self, x0):
+        self.__x0 = x0
+
+    @property
+    def y0(self):
+        return self.__y0
+
+    @y0.setter
+    def y0(self, y0):
+        self.__y0 = y0
+
+    @property
+    def r(self):
+        return self.__r
+
+    @r.setter
+    def r(self, r):
+        if r > 0:
+
+            self.__r = r
+        else:
+            self.__r = 0
+
+    def get_area(self):
+        return math.pi * self.__r ** 2
+
+    def __repr__(self):
+        return f'x0, y0: {self.__x0}, {self.__y0}; r = {self.__r}'
+
+
+class Point:
+    def __init__(self, x=0, y=0, z=0):
+        self.__x = x
+        self.__y = y
+        self.__z = z
+
+    @property
+    def x(self):
+        return self.__x
+
+    @x.setter
+    def x(self, x):
+        self.__x = x
+
+    @property
+    def y(self):
+        return self.__y
+
+    @y.setter
+    def y(self, y):
+        self.__y = y
+
+    @property
+    def z(self):
+        return self.__z
+
+    @y.setter
+    def z(self, z):
+        self.__z = z
+
+    def length_to_center(self):
+        return (self.__x ** 2 + self.__y ** 2 + self.__z ** 2) ** 0.5
+
+    def __repr__(self):
+        return f'x, y, z: {self.__x, self.__y, self.__z}'
+
+
+class Cube:
+    def __init__(self, center=Point(), length=0):
+        self.__center = center
+        self.__length = length
+        self.__points()
+
+    @property
+    def center(self):
+        return self.__center
+
+    @center.setter
+    def center(self, center):
+        self.__center = center
+        self.__points()
+
+    @property
+    def length(self):
+        return self.length
+
+    @length.setter
+    def length(self, length):
+        self.length = length
+        self.__points()
+
+    def __points(self):
+        # z-axis is directed to us
+        #                +y
+        #                |
+        #                |
+        #       p2       |        p3                +z
+        #                |                          | - top
+        #                |                          |
+        # -x ------------o------------- +x          |
+        #                |(z)                       |
+        #                |                          | - down
+        #       p1       |        p4                -z
+        #                |
+        #                |
+        #                -y
+        self.__p_down1 = Point(
+            self.__center.x - self.__length / 2,
+            self.__center.y - self.__length / 2,
+            self.__center.z - self.__length / 2)
+
+        self.__p_down2 = Point(
+            self.__center.x - self.__length / 2,
+            self.__center.y + self.__length / 2,
+            self.__center.z - self.__length / 2)
+
+        self.__p_down3 = Point(
+            self.__center.x + self.__length / 2,
+            self.__center.y + self.__length / 2,
+            self.__center.z - self.__length / 2)
+
+        self.__p_down4 = Point(
+            self.__center.x + self.__length / 2,
+            self.__center.y - self.__length / 2,
+            self.__center.z - self.__length / 2)
+
+        self.__p_top1 = Point(
+            self.__center.x - self.__length / 2,
+            self.__center.y - self.__length / 2,
+            self.__center.z + self.__length / 2)
+
+        self.__p_top2 = Point(
+            self.__center.x - self.__length / 2,
+            self.__center.y + self.__length / 2,
+            self.__center.z + self.__length / 2)
+
+        self.__p_top3 = Point(
+            self.__center.x + self.__length / 2,
+            self.__center.y + self.__length / 2,
+            self.__center.z + self.__length / 2)
+
+        self.__p_top4 = Point(
+            self.__center.x + self.__length / 2,
+            self.__center.y - self.__length / 2,
+            self.__center.z + self.__length / 2)
+
+    def __repr__(self):
+        return f'center: {self.__center};\n' \
+               f'p_down1: {self.__p_down1};\n' \
+               f'p_down2: {self.__p_down2};\n' \
+               f'p_down3: {self.__p_down3};\n' \
+               f'p_down4: {self.__p_down4};\n' \
+               f'p_top1: {self.__p_top1};\n' \
+               f'p_top2: {self.__p_top2};\n' \
+               f'p_top3: {self.__p_top3};\n' \
+               f'p_top4: {self.__p_top4};\n'
+
+
+class Sphere:
+    def __init__(self, center=Point(), r=0):
+        self.__center = center
+        self.__r = r
+        self.__calc_volume()
+
+    @property
+    def center(self):
+        return self.__center
+
+    @center.setter
+    def center(self, center):
+        self.__center = center
+        self.__calc_volume()
+
+    @property
+    def r(self):
+        return self.__r
+
+    @r.setter
+    def r(self, r):
+        self.__r = r
+        self.__calc_volume()
+
+    def __calc_volume(self):
+        self.__volume = 4 * math.pi * (self.__r ** 3) / 3
+
+    def __repr__(self):
+        return f'center: {self.__center};\n' \
+               f'r: {self.__r};\n' \
+               f'volume: {self.__volume};'
+
+
+class Pig:
+    def __init__(self, name='Pyatochok', mass=50, age=1):
+        self.__name = name
+        self.__mass = mass
+        self.__age = age
+
+    @property
+    def name(self):
+        return self.__name
+
+    @name.setter
+    def name(self, name):
+        self.__name = name
+
+    @property
+    def mass(self):
+        return self.__mass
+
+    @mass.setter
+    def mass(self, mass):
+        self.__mass = mass
+
+    @property
+    def age(self):
+        return self.__age
+
+    @age.setter
+    def age(self, age):
+        self.__age = age
+
+    def shit(self, shit_mass):
+        print('The pig has taken a shit! His mass has reduced')
+        self.__mass -= shit_mass
+
+    def feed(self, food_mass):
+        print('The Pig has eaten! His mass has reduced')
+        self.__mass += food_mass
+
+    def __repr__(self):
+        return f'name: {self.__name};\n' \
+               f'mass: {self.__mass};\n' \
+               f'age: {self.__age};'
+
+
+# testing
+circle = Circle()
+print(circle)
+circle.r = 12.4
+print(circle.get_area())
+circle.x0 = 12
+circle.y0 = 23
+print(circle.x0)
+print(circle)
+print('=============')
+
+p1 = Point()
+print(p1)
+p1.x = 2
+p1.y = 3
+p1.z = 5
+
+print(p1)
+print(p1.length_to_center())
+print('++++++++++++++')
+
+cube = Cube(Point(1, 1, 1), 2)
+print(cube)
+print(cube.center)
+
+cube.center = Point(0, 0, 1)
+print(cube)
+print('++++++++++++++')
+
+sphere = Sphere()
+print(sphere)
+sphere.r = 1
+print(sphere)
+print('++++++++++++++')
+
+pig = Pig('Dirty pig')
+print(pig)

src/task_11_2.py

@@ -0,0 +1,39 @@
+"""Создать класс Car. Атрибуты: марка, модель, год выпуска, скорость(по
+умолчанию 0). Методы: увеличить скорости(скорость + 5), уменьшение
+скорости(скорость - 5), стоп(сброс скорости на 0), отображение скорости,
+разворот(изменение знака скорости). Все атрибуты приватные."""
+
+class Car:
+    def __init__(self, car_brend, model, year, speed=0):
+        self.__car_brend = car_brend
+        self.__model = model
+        self.__year = year
+        self.__speed = speed
+
+    def increase_speed(self, speed=5):
+        self.__speed += speed
+
+    def reduce_speed(self, speed=5):
+        self.__speed -= speed
+
+    def stop(self):
+        self.__speed = 0
+
+    def show_speed(self):
+        print(self.__speed)
+
+    def turn_around(self):
+        self.__speed *= -1
+
+
+car = Car('BMW', 'M3', 2000)
+car.show_speed()
+car.increase_speed()
+car.show_speed()
+car.reduce_speed(12)
+car.show_speed()
+car.turn_around()
+car.show_speed()
+car.stop()
+car.show_speed()
+