在Python中使用Zelle图形制作动画

Question

我需要设计我的图形的帮助，而无需使用Turtle或Tkinter，但需要使用Zelle graphics.py。问题是我需要同时运行四个圆圈。这是我到目前为止的代码：

 from graphics import *
    import time #import time module

from random import randrange
def rand_color():#generates a random color and returns that color
    return(color_rgb(randrange(256),randrange(256),randrange(256)))
def main():
    win = GraphWin("My Circle",500,500)\
    c = Circle(Point(20,20),20)
    c.setFill(rand_color())
    c.draw(win)
    for i in range(1,461):
        c.move(1,1)
        time.sleep(.005)

    c = Circle(Point(20,20),20)
    c.setFill(rand_color())
    c.draw(win)
    for i in range(1,461):
        c.move(-1,1)
        time.sleep(.005)

    c = Circle(Point(20,20),20)
    c.setFill(rand_color())
    c.draw(win)
    for i in range(1,461):
        c.move(1,-1)
        time.sleep(.005)

    c = Circle(Point(20,20),20)
    c.setFill(rand_color())
    c.draw(win)
    for i in range(1,461):
        c.move(1,1)
        time.sleep(.005)
main()

我不知道如何一次移动多个对象。怎么会这样呢？

Answer 1

宁可依次轮流完全移动每个圆圈，也可以将动作切碎并轮流交替，以便每个圆圈在轮循中一次移动一点。我猜这很接近您要执行的操作：

from random import randrange
from graphics import *

def rand_color():
    """ Generate a random color and return it. """

    return color_rgb(randrange(256), randrange(256), randrange(256))

win = GraphWin("My Circle", 500, 500)

circles = []

for x in [-1, 1]:
    for y in [-1, 1]:
        circle = Circle(Point(250, 250), 20)
        circle.setFill(rand_color())
        circle.draw(win)
        circles.append((circle, (x, y)))

for _ in range(250):
    for circle, (x, y) in circles:
        circle.move(x, y)

win.getMouse()  # Pause to view result
win.close()  # Close window when done