mHDZq8 - Online Python Interpreter & Debugging Tool

import matplotlib.pyplot as plt
import matplotlib.animation as animation
import numpy as np

# Parameters
n = 100
positions = list(range(1, n + 1))
angle = np.linspace(0, 2 * np.pi, n, endpoint=False)

# Set up figure
fig, ax = plt.subplots(figsize=(8, 8))
ax.axis('off')
sc = ax.scatter([], [], s=400)

# Annotate numbers
texts = []
for i in range(n):
    x, y = np.cos(angle[i]), np.sin(angle[i])
    txt = ax.text(x, y, str(i+1), ha='center', va='center', fontsize=8, color='white',
                  bbox=dict(boxstyle='circle,pad=0.3', fc='blue', ec='black', lw=1))
    texts.append(txt)

# State variables
current_index = 0

def update(frame):
    global current_index, positions, texts

    if len(positions) <= 1:
        return

    # Calculate index of person to be removed
    remove_index = (current_index + 1) % len(positions)

    # Remove from display
    texts[positions[remove_index] - 1].set_visible(False)

    # Remove from list
    del positions[remove_index]

    # Next killer
    current_index = remove_index % len(positions)

    # Redraw remaining people
    new_angle = np.linspace(0, 2 * np.pi, len(positions), endpoint=False)
    for i, pos in enumerate(positions):
        x, y = np.cos(new_angle[i]), np.sin(new_angle[i])
        texts[pos - 1].set_position((x, y))

ani = animation.FuncAnimation(fig, update, frames=100, interval=700, repeat=False)
plt.show()