Hitbox not centering on the player rect? [duplicate]

Question

Making a platformer and the player class has following code. I have created the hitbox from original rect with a -30 reduced width, but it still creates the hitbox in the topleft of the rect. I tried adding the hitbox center to rect center in the update method but it is not working.

Is it something to do with the rect having a pos parameter which passes into the level class? I can't seem to figure this one out, please help. Does the hitbox need to have this paramter instead?

class Player(Character):
def __init__(self, pos, groups, obstacle_sprites, create_run_particles, create_jump_particles, player_shoot):
    super().__init__(groups)
    self.display_surf = pygame.display.get_surface()
    
    # animation setup
    self.import_assets()
    self.vel = pygame.math.Vector2()

    self.state = 'idle'
    self.facing = 1
    self.frame_index = 0
    self.frame_rate = 0.2
    self.image = self.animations['idle'][self.frame_index]
    self.rect = self.image.get_rect(topleft = pos)
    self.hitbox = self.rect.inflate(-30, 0)

def input(self):
    if not self.hold:
        keys = pygame.key.get_pressed()
        # move input
        if keys[pygame.K_RIGHT]:
            self.vel.x = 1
            self.facing = 1

        elif keys[pygame.K_LEFT]:
            self.vel.x = -1
            self.facing =-1
    
        else:
            self.vel.x = 0

        if keys[pygame.K_DOWN]:
            self.crouched = True

        elif keys[pygame.K_UP] and self.grounded: 
            self.crouched = False
            self.jump()
            # elif self.on_wall and self.hang_cooldown >= 1 and self.hang_cooldown <= 
        
        if keys[pygame.K_z] and not self.grounded and self.hang_cooldown < HANG_TIME:
            self.grab_wall = True
            self.hang_cooldown += 1 
        else:
            self.grab_wall = False
            
def jump(self):
    self.vel.y = - JUMP_HEIGHT
    self.create_jump_particles()

def x_collisions(self):
    for sprite in self.obstacle_sprites.sprites():
        if sprite.hitbox.colliderect(self.hitbox):
            if self.vel.x > 0:
                self.vel.x = 0
                self.hitbox.right = sprite.hitbox.left
                if self.grab_wall == True and self.vel.y > 0:
                    self.vel.y = -4
                    self.on_wall = True
                    self.x_collided  = True
                    if self.hitbox.centerx < sprite.hitbox.top:
                        self.hitbox.bottomright == sprite.hitbox.midtop
                
            if self.vel.x < 0:
                self.vel.x = 0
                self.hitbox.left = sprite.hitbox.right
                if self.grab_wall == True and self.vel.y > 0:
                    self.vel.y = -4
                    self.on_wall = True
                    self.x_collided  = True
                    if self.hitbox.centerx < sprite.hitbox.top:
                        self.hitbox.bottomleft == sprite.hitbox.midtop
            
                
def y_collisions(self):
    for sprite in self.obstacle_sprites.sprites():
        if sprite.hitbox.colliderect(self.hitbox):
            if self.vel.y > 0:
                self.hitbox.bottom = sprite.hitbox.top
                self.vel.y = 0
                self.grounded = True
            elif self.vel.y < 0:
                self.hitbox.top = sprite.hitbox.bottom
                self.vel.y = 0

    if self.vel.y < 0 or self.vel.y > 1:
        self.grounded = False


def update(self):
    self.input()
    self.get_state()
    self.animate('loop')
    self.cooldowns()
    if self.hold:
        self.state = 'facing'
    else:
        self.hitbox.x += self.vel.x * self.speed
        self.rect.center = self.hitbox.center
    self.can_wallslide()
    self.x_collisions()
    self.gravity()
    self.y_collisions()

Answer 1

Solved. Giving the tile sprites a hitbox attribute too and creating the hitbox width gives desired result providing I leave the player hitbox at 0.

I am now worried my tiles are effectively 'smaller' and my player is same size? This could cause issues with smaller sprites slotting between the gaps?

Advice would be great!