import pygame
import math

def update():
    pass

def draw():
    screen.fill((0, 0, 0))

    def draw_eye(eye_x, eye_y):
        mouse_x, mouse_y = pygame.mouse.get_pos()

        distance_x = mouse_x - eye_x
        distance_y = mouse_y - eye_y
        distance = min(math.sqrt(distance_x**2 + distance_y**2), 30)
        angle = math.atan2(distance_y, distance_x)

        pupil_x = eye_x + (math.cos(angle) * distance)
        pupil_y = eye_y + (math.sin(angle) * distance)

        screen.draw.filled_circle((eye_x, eye_y), 50, color=(255, 255, 255))
        screen.draw.filled_circle((pupil_x, pupil_y), 15, color=(0, 0, 100))

    draw_eye(200, 200)
    draw_eye(330, 200)