希望大佬帮忙改良下python随机漫步

Question

随机漫步有两个起点 同时开始走 路径不能重叠

## random_walk.py

from random import choice
class RandomWalk:
    def __init__(self,num_points=5000):
        self.num_points=num_points
        self.x_values=[0]
        self.y_values=[0]
    def fill_walk(self):
        while len(self.x_values)<self.num_points:
            x_direction = choice([1,-1])
            x_distance = choice([0,1,2,3,4])
            x_step = x_direction*x_distance

            y_direction = choice([1,-1])
            y_distance = choice([0,1,2,3,4])
            y_step = y_distance *y_direction

            if x_step ==0 and y_step ==0:
                continue
            x = self.x_values[-1] + x_step
            y = self.y_values [-1] + y_step
            self.x_values .append(x)
            self.y_values .append(y)

## random
import matplotlib.pyplot as plt
from random_walk import RandomWalk
while True:
    rw = RandomWalk(50_00)
    rw.fill_walk()
    plt.style.use('classic')
    fig, ax = plt.subplots()
    point_numbers = range(rw.num_points)

    ax.scatter (rw.x_values ,rw.y_values ,c=point_numbers ,cmap=plt.cm.Blues,edgecolors='none', s=10)
    #ax.scatter(rw.x_values, rw.y_values, s=15)
    ax.scatter (0,0,c='green',edgecolors='none',s=100)
    ax.scatter (rw.x_values [-1], rw.y_values [-1], c='red',edgecolors='none',s=100)

    #ax.get_xaxis().set_visible(False)
    #ax.get_yaxis().set_visible(False)
    plt.show()
    keep_running = input("Make another waik? (y/n):")
    if keep_running =='n':
        break

Answer 1

既然是随机漫步，根据伪随机数生成的原理，只要任意两次程序调用的时间戳不同，路径的选择就不会相同。所以你只需要生成两个Random()的实例，就可以保证从你的（0,0）点出发的5000个点随机漫步得到的路径不同了。第二次随机漫步的终点我用橙色标记在图中，第二次随机漫步的颜色我选用灰色系以防止颜色冲突。其余位置的代码使用你原来的图像即可。

while True:
    rw1 = RandomWalk(50_00)
    rw2 = RandomWalk(50_00)
    rw1.fill_walk()
    rw2.fill_walk()
    
    plt.style.use('classic')
    fig, ax = plt.subplots()
    point_numbers = range(rw1.num_points)

    ax.scatter (rw1.x_values ,rw1.y_values ,c=point_numbers ,cmap=plt.cm.Blues,edgecolors='none', s=10)
    ax.scatter (rw2.x_values ,rw2.y_values ,c=point_numbers ,cmap="Greys",edgecolors='none', s=10)

    ax.scatter (0,0,c='green',edgecolors='none',s=100)
    ax.scatter (rw1.x_values [-1], rw1.y_values [-1], c='red',edgecolors='none',s=100)
    ax.scatter (rw2.x_values [-1], rw2.y_values [-1], c='orange',edgecolors='none',s=100)
    plt.show()
    keep_running = input("Make another waik? (y/n):")
    if keep_running =='n':
        break