Piano Tiles/DDR/Literally any rhythm game Ripoff

import pygame
import random
pygame.init()

win = pygame.display.set_mode((360,740))

pygame.display.set_caption("Piano Tiles Bootleg")

screenX = 360
screenY = 640
tileW = 90
tileH = 135

class tile1():
    x = 0
    y = -135
    move = False
class tile2():
    x = 90
    y = -135
    move = False
class tile3():
    x = 180
    y = -135
    move = False
class tile4():
    x = 270
    y = - 135
    move = False

vel = 20

run = True
while run:
    pygame.time.delay(16)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    randTile = random.choice([1,2,3,4])

    if randTile == 1:
        tile1.move = True
    elif randTile == 2:
        tile2.move = True
    elif randTile == 3:
        tile3.move = True
    elif randTile == 4:
        tile4.move = True

    while tile1.move:
        tile1.y += vel
    while tile2.move:
        tile2.y += vel
    while tile3.move:
        tile3.y += vel
    while tile4.move:
        tile4.y += vel

    if tile1.y > screenY:
        tile1.y = -135
        tile1.move = False
    if tile2.y > screenY:
        tile2.y = -135
        tile2.move = False
    if tile3.y > screenY:
        tile3.y = -135
        tile3.move = False
    if tile4.y > screenY:
        tile4.y = -135
        tile4.move = False

    win.fill((255,255,255))
    pygame.draw.rect(win, (0,0,0), (tile1.x, tile1.y, tileW, tileH))
    pygame.draw.rect(win, (0, 0, 0), (tile2.x, tile2.y, tileW, tileH))
    pygame.draw.rect(win, (0,0,0), (tile3.x, tile3.y, tileW, tileH))
    pygame.draw.rect(win, (0, 0, 0), (tile4.x, tile4.y, tileW, tileH))
    pygame.display.update()

pygame.quit()