import pygame, sys
from pygame.math import Vector2

class FRUIT:
    def __init__(self):
        self.x = 5
        self.y = 4
        self.pos = Vector2(self.x, self.y)

    def draw_fruit(self):
        fruit_rect = pygame.Rect(self.pos.x, self.pos.y, w, h)
        pygame.draw.rect(surface, color, fruit_rect)

pygame.init()
cell_size = 40
cell_number = 20
screen = pygame.display.set_mode((20 * 40, 500))
clock = pygame.time.Clock()

while True :
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
            
    screen.fill((175, 215, 70))
    pygame.display.update()
    clock.tick(60)