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from kandinsky import *
import time
import random

NUM_ROWS, NUM_COLS, NUM_FLAKES = 27, 40, 50
SNOWFLAKES = "#*+."
SLEEP_TIME = 0.1
WIND_PROBABILITY = 0.1
BG, WH = (20,60,100), (255,)*3

class Snowflake:
    def __init__(self):
        self.char = random.choice(SNOWFLAKES)
        self.x = random.randint(0, NUM_COLS - 1)
        self.y = random.randint(-NUM_ROWS, 0)
        self.sway = random.choice([-1, 0, 1])

    def move(self, wind):
        self.y += 1
        self.x += self.sway + wind
        if self.x < 0: self.x = NUM_COLS - 1
        elif self.x >= NUM_COLS: self.x = 0

def main():
    flakes = [Snowflake() for _ in range(NUM_FLAKES)]
    wind = 0
    rvb = [0, 0, 0]
    while True:
        fill_rect(0, 0, 320, 222, BG)
        for i in range(3) :
            rvb[i] = (rvb[i] + (i + 1) * random.randint(0,4)) % 255
        if random.random() < WIND_PROBABILITY:
            wind = random.choice([-1, 0, 1])
        for flake in flakes:
            flake.move(wind)
            if flake.y < NUM_ROWS:
                draw_string(flake.char, 8*flake.x, 8*flake.y,WH,BG)
            else:
                flake.y = random.randint(-NUM_ROWS, 0)
                flake.x = random.randint(0, NUM_COLS - 1)
        coul = BG if sum(rvb) > 300 else WH
        draw_string("J O Y E U S E S  F E T E S", 30, 110, coul, rvb)
        time.sleep(SLEEP_TIME)

main()