85 lines
1.8 KiB
Python
85 lines
1.8 KiB
Python
import json
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from abc import abstractmethod
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from abc import ABC
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import math
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class Shape(ABC):
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color = ''
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@abstractmethod
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def area(self):
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pass
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@abstractmethod
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def perimetr(self):
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pass
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@staticmethod
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def create_shape(json):
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if "type" in json:
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shape_type = json["type"].lower()
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if shape_type == "circle":
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radius = 'radius'
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elif shape_type == "square":
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side = 'side'
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elif shape_type == "rectangle":
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return Rectangle(json["width"], json["height"])
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else:
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raise TypeError(f'Неизвестная фигура {shape_type}')
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shape_type.color = safe_read(json, "color", "unknown")
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@staticmethod
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def convert_to_json(obj):
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if isinstance(obj, Shape):
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result = obj.__dict__
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result["type"] = obj.__class__.__name__
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result['color'] = obj.color
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return result
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def safe_read (shape_type, property, default_value):
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if property in shape_type:
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return shape_type[property]
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return default_value
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class Rectangle(Shape):
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def __init__(self, width, height):
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self.width = width
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self.height = height
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def area(self):
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return self.width * self.height
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def perimetr(self):
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return (self.width + self.height) * 2
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class Square(Shape):
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def __init__(self, side):
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self.side = side
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def area(self):
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return self.side ** 2
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def perimetr(self):
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return 4 * self.side
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class Circle(Shape):
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def __init__(self, radius):
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self.radius = radius
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def area(self):
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return math.pi * (self.radius ** 2)
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def perimetr(self):
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return 2 * math.pi * self.radius
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r1 = Rectangle(10, 20)
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s1 = Square(22)
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c1 = Circle(10)
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