Python Forum

im a beginner and just really started while i copy some tutorial in youtube i find my window for pygame not responding been searching for hours what is wrong with my code, checked indintation as well, still windows not responding :(, however it was able to show grid. this is snake tutorial on freecode camp,thanks guys.

#Snake Tutorial Python


import math
import random
import pygame
import tkinter as tk
from tkinter import messagebox

class cube (object):
    rows = 0
    w = 0
    def __init__(self,start,dirnx=1,dirny=0,color=(255,0,0)):
        pass

    def move (self, dirnx, dirny):
        pass
    
    def draw(self, surface, eyes=False):
        pass

class snake (object):
    body = []
    turns = {}
    def __init__(self, color, pos):
        self.color = color
        self.head = cube(pos)
        self.body.append(self.head)
        self.dirnx = 0
        self.dirny = 1

    def move(self, pos):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()

        keys = pygame.key.get_pressed()

        for key in keys:
            if keys[pygame.K_left]:
                self.dirnx = -1
                self.dirny = 0
                self.turns[self.head.pos[:]] = [self.dirnx, self,dirny]

            elif keys[pygame.K_RIGHT]:
                self.dirnx = 1
                self.dirny = 0
                self.turns[self.head.pos[:]] = [self.dirnx, self,dirny]

            elif keys[pygame.K_UP]:
                self.dirnx = 0
                self.dirny = -1
                self.turns[self.head.pos[:]] = [self.dirnx, self,dirny]

            elif keys[pygame.K_DOWN]:
                self.dirnx = 0
                self.dirny = 1
                self.turns[self.head.pos[:]] = [self.dirnx, self,dirny]

        for i, c in enumerate(self.body):
            p = c.pos[:]
            if p in self.turns:
                turn = self.turns[p]
                c.move(turn[0],turn[1])
                if i == len(self.body)-1:
                    self.turns.pop(p)
            else:
                if c.dirnx == -1 and c.pos[0] <= 0: c.pos = (c.rows-1, c.pos[1])
                elif c.dirnx == 1 and c.pos[0] >= c.rows-1: c.pos = (0,c.pos[1])
                elif c.dirny == 1 and c.pos[1] >= c.rows-1: c.pos = (c.pos[0], 0)
                elif c.dirny == -1 and c.pos [1] <= 0: c.pos = (c.pos[0],c.rows-1)
                else: c.move(c.dirnx,c.dirny)
                
        
    def reset(self, pos):
        pass

    def addCube(self):
        pass

    def draw(self, surface):
        pass

def drawGrid(w, rows, surface):
    sizeBtwn = w // rows

    x = 0
    y = 0
    for l in range(rows):
        x = x + sizeBtwn
        y = y + sizeBtwn

        pygame.draw.line(surface, (255,255,255), (x,0),(x,w))
        pygame.draw.line(surface, (255,255,255), (0,y),(w,y))
        

def redrawWindow(surface):
    global rows, width
    surface.fill((0,0,0))
    drawGrid(width,rows, surface)
    pygame.display.update()
    

def randomSnack(rows, items):
    pass

def message_box(subject, content):
    pass

def main():
    global width, rows
    width = 500
    rows = 20
    win = pygame.display.set_mode((width, width))
    s = snake((255,0,0), (10,10))
    flag = True

    clock = pygame.time.Clock()
    
    while flag:
        pygame.time.delay(50)
        clock.tick(10)
        redrawWindow(win)
    
    pass

main()

The file doesn't contain code to do anything other than draw the grid. If this is a tutorial, it must be first in a series.