2024-03-14 13:54:52 +00:00
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"""
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Анимация квадратов
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https://stepik.org/lesson/468998/step/4?unit=459819
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3: "Квадрат двигается справа налево"
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4: "Два квадрата двигаются в противоположных направлениях"
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Библиотека graph: https://kpolyakov.spb.ru/download/pygraph.zip
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"""
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from graph import *
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from typing import NamedTuple
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class Point(NamedTuple):
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"""
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Вспомогательный класс для упрощения работы с координатами (сложение)
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"""
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2024-03-23 19:57:35 +00:00
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2024-03-14 13:54:52 +00:00
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x: int | float
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y: int | float
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def __add__(self, other):
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if isinstance(other, self.__class__):
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return self.__class__(self.x + other.x, self.y + other.y)
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if isinstance(other, (int, float)):
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return self.__class__(self.x + other, self.y + other)
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return NotImplemented
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def make_title(n, name, start, font=("Arial", 15), n_color="indigo"):
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pos = Point(10, 20) + start
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n_width = Point(35, 0)
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l1 = label(f"«{n}»", *pos, font=font, foreground=n_color)
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l2 = label(f": {name}", *(pos + n_width), font=font)
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return l1, l2
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def square_left_to_right(start_pos=None):
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start_pos = start_pos or Point(0, 0)
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make_title(3, "Квадрат двигается справа налево", start_pos)
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title_height = Point(0, 60)
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start_pos = start_pos + title_height
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scene_sz = Point(300, 300)
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box_sz = Point(40, 40)
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box_offset = Point(220, 5)
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brushColor("Blue")
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rectangle(*start_pos, *(start_pos + scene_sz)) # Размер фона
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brushColor("Yellow")
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obj = rectangle(
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*(start_pos + box_offset), *(start_pos + box_offset + box_sz)
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) # Создаем объект, который у нас в виде прямоугольника
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data = {"done": False} # состояние объекта для контроля таймера из вне функции
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def update(): # Создаем процедуру, которая отвечает за анимацию
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# Она будет перемещать объект obj по оси x на -5 по оси y на 0 пикселей
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moveObjectBy(obj, -5, 0)
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if xCoord(obj) <= 1: # Если x координата меньше 1
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killTimer(timer)
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data["done"] = True
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timer = onTimer(update, 40) # Каждые 50 мс будет запускаться процедура update
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return (data,)
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def two_squares(start_pos=None):
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start_pos = start_pos or Point(0, 0)
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make_title(4, "Два квадрата двигаются в\nпротивоположных направлениях", start_pos)
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title_height = Point(0, 90)
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start_pos = start_pos + title_height
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scene_sz = Point(300, 300)
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box_sz = Point(40, 40)
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box1_offset = Point(220, 5)
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box2_offset = Point(0, 250)
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brushColor("Blue")
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rectangle(*start_pos, *(start_pos + scene_sz))
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brushColor("Yellow")
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box1 = rectangle(*(start_pos + box1_offset), *(start_pos + box1_offset + box_sz))
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box2 = rectangle(*(start_pos + box2_offset), *(start_pos + box2_offset + box_sz))
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timer1 = None
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timer2 = None
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data1 = {"done": False}
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data2 = {"done": False}
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def update_box1():
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moveObjectBy(box1, -5, 0)
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if xCoord(box1) <= 1:
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killTimer(timer1)
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data1["done"] = True
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def update_box2():
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moveObjectBy(box2, 5, 0)
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if xCoord(box2) >= scene_sz.x - box_sz.x:
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killTimer(timer2)
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data2["done"] = True
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timer1 = onTimer(update_box1, 40)
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timer2 = onTimer(update_box2, 40)
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return data1, data2
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def main():
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canvasSize(400, 800)
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2024-03-23 19:57:35 +00:00
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state = [*square_left_to_right(), *two_squares(Point(0, 350))]
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2024-03-14 13:54:52 +00:00
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watch_timer = None
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# выход по завершении всех анимаций
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def watch_done():
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if all(x["done"] for x in state):
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killTimer(watch_timer)
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close()
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watch_timer = onTimer(watch_done, 6000)
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run()
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main()
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