[Python] My pygame sprites get misaligned overtime

I am trying to develop a platformer, but when I started implementing gravity and a jump mechanic the sprites of my terrain get misaligned on the y axis and I really don't know what is wrong.

My code consist of tree main classes:

• Player: This class has all the logic of the player.
• Level: This one have the logic of the level and this is probably where my error is coming from.
• Tile: This class generates all the tiles of the terrain and could also be part of the issue.

There is also a class named Game but the issue is 100% not coming from there as all this class does for now is initialize the level class.

import pygame, sys

pygame.init()

# Settings
tile_size = 64
fov = 10
screen_width = 1200
screen_height = tile_size * fov

level_data = [
' ',
' ',
' XX ',
'XX XXX ',
'XX XX',
'XXXX XX ',
'XXXX P XX ',
'XX X XXX XX X ',
' X XXX XX XX ',
' XXXX XXXXX XX XXX',
'XXXXXXX XXXXX XX XXX']

# Classes
class Game():
def __init__(self):
self.level = Level(screen)
self.status = 'level'

def run(self):
if self.status == 'level':
self.level.run()

class Level:
def __init__(self,display_surface):
# Basic setup
self.setup_level()
self.display_surface = display_surface

# Movement
self.x_shift = 0
self.y_shift = 0

def setup_level(self):
self.tiles = pygame.sprite.Group()
self.player = pygame.sprite.GroupSingle()
for row_index,row in enumerate(level_data):
for col_index,col in enumerate(row):
x = col_index * tile_size
y = (row_index * tile_size) - ((len(level_data) - fov) * tile_size)
if col == 'X':
tile = Tile((x,y))
self.tiles.add(tile)
if col == 'P':
player = Player((x,y))
self.player.add(player)

def apply_gravity(self):
player = self.player.sprite
self.y_shift = player.direction.y

def run(self):
# Tiles
self.tiles.update(self.x_shift,self.y_shift)
self.tiles.draw(self.display_surface)

# Player
self.player.update()
self.apply_gravity()
self.player.draw(self.display_surface)

class Tile(pygame.sprite.Sprite):
def __init__(self,pos):
super().__init__()
self.image = pygame.Surface((tile_size,tile_size))
self.image.fill('grey')
self.rect = self.image.get_rect(topleft = pos)

def update(self,x_shift,y_shift):
self.rect.x += x_shift
self.rect.y -= y_shift

class Player(pygame.sprite.Sprite):
def __init__(self,pos):
super().__init__()
# Image
self.image = pygame.Surface((32,64))
self.image.fill('red')
self.rect = self.image.get_rect(topleft = pos)

# Movement
self.direction = pygame.math.Vector2(0,0)
self.gravity = 0.8

def get_inputs(self):
keys = pygame.key.get_pressed()

if keys[pygame.K_SPACE]:
self.direction.y = -20

def apply_gravity(self):
self.direction.y += self.gravity

def update(self):
self.get_inputs()
self.apply_gravity()

# Game setup
screen = pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption('Platformer')
clock = pygame.time.Clock()
game = Game()

# Main
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()

screen.fill('black')
game.run()

pygame.display.update()
clock.tick(60)

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