I am a beginner in Python. I need help in polishing my snake game

I am making a snake game and I want to have a border or limit on the playing area of the snake itself so it does not overlap the “Score counter” on the top-left of the window. I tried adding a function called border but nothing happened. What can I do or what am I missing to have this border lines? Thanks!

Here is my code for reference:

import pygame
import time
import random
pygame.init()

#Importing Colors
white = (255, 255, 255)
yellow = (255, 255, 102)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)
orange = (218,103,60)
pink = (255, 105, 180)
lime = (232, 244, 140)
cream = (255,253,208)
medium_green = (60,179,113)
brown = (150, 75, 0)

#Window Size
dis_width = 1280
dis_height = 720

#Initialize window
dis = pygame.display.set_mode((dis_width, dis_height))

#Title
pygame.display.set_caption('🐍🐍  ISNEKK  🐍🐍')

#Clock Variable
clock = pygame.time.Clock()
 
#Snake Block Size
snake_block = 10

font_style = pygame.font.SysFont("bahnschrift", 40) 
score_font = pygame.font.SysFont("comicsansms", 25) #Score Display

    
def Your_score(score):
    value = score_font.render("SCORE: " + str(score), True, black)
    dis.blit(value, [0, 0])

def our_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(dis, yellow, [x[0], x[1], snake_block, snake_block])

def message(msg, color):
    mesg = font_style.render(msg, True, color)
    dis.blit(mesg, [dis_width / 8, dis_height / 3])

def gameLoop():
    game_over = False
    game_close = False

    x1 = dis_width/2
    y1 = dis_height/2

    x1_change = 0
    y1_change = 0

    snake_List = []
    Length_of_snake = 1

    foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0

    snake_speed = 10

    while not game_over:
        while game_close == True:
            dis.fill(black)
            message("GAME OVER! Press G to play again or Q to quit", white)
            Your_score(Length_of_snake - 1)
            pygame.display.update()
    
            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_over = True
                        game_close = False
                    if event.key == pygame.K_g:
                        gameLoop()

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x1_change = -snake_block
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = snake_block
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -snake_block
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = snake_block
                    x1_change = 0

        if x1 >= dis_width or x1 < 0 or y1 >= dis_height or y1 < 0:
            game_close = True
        x1 += x1_change
        y1 += y1_change
        dis.fill(brown)
        pygame.draw.rect(dis, white, [foodx, foody, snake_block, snake_block])
        snake_Head = []
        snake_Head.append(x1)
        snake_Head.append(y1)
        snake_List.append(snake_Head)
        if len(snake_List) > Length_of_snake:
            del snake_List[0]

        for x in snake_List[:-1]:
            if x == snake_Head:
                game_close = True
    

        our_snake(snake_block, snake_List)
        Your_score(Length_of_snake - 1)
    
        pygame.display.update()

        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0
            Length_of_snake += 1
            snake_speed = snake_speed + 1

        clock.tick(snake_speed)
        
    pygame.quit()
    quit()

gameLoop()

This condition is where you are checking if the snake has reached the edge of the play area.

If you change those numbers (say 50 instead of 0, or dis_width - 50 instead of dis_width), then you’ll define a smaller region for the play area.

You should probably draw a border around the play area you define, otherwise it won’t be obvious to the player how much space they have to move in.

Oh I see, so one step is defining a region instead of inputting 0.

Yes, but I do not know how to draw a border for the play area. I have tried looking up the internet for any source codes but I can’t seem to find any.