It looks like the NAME_1 and the player are not synced up.

import pygame
import random
import noise

# Constants
TILE_SIZE = 64
BIOME_COUNT = 7
HEIGHT_RANGE = 5  # 0-4 (inclusive)
SCREEN_WIDTH = 1280
SCREEN_HEIGHT = 640
WORLD_WIDTH = 100
WORLD_HEIGHT = 100
PLAYER_HEIGHT = 96
PLAYER_WIDTH = 79
PLAYER_SIZE = 64
PLAYER_SPEED = 1


class NAME_1:
    """Represents the NAME_1 in the game world."""

    def __init__(self, x=0, y=0):
        self.x = x
        self.y = y
    
    def move(self, dx, dy):
        """Move the NAME_1 by a delta in the x and y directions."""
        self.x += dx
        self.y += dy


class World:
    """Represents the game world."""

    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.voronoi_map = self._generate_voronoi_map(width, height)
        self.height_map = self._generate_height_map(width, height)
        self.biome_tiles = self._load_biome_tiles()
        self.player_sprites = self._load_player_sprites()

    def get_biome_index(self, x, y):
        """Return the biome index at a given location, if it is within the world bounds."""
        if 0 <= x < self.width and 0 <= y < self.height:
            return self.voronoi_map[x][y]
        return None

    @staticmethod
    def _generate_voronoi_map(width, height):
        """Generate a 2D map representing different biomes."""
        return [[random.randint(0, BIOME_COUNT - 1) for _ in range(height)] for _ in range(width)]

    @staticmethod
    def _generate_height_map(width, height):
        """Generate a 2D map representing different heights using Perlin noise."""
        return [[int(noise.pnoise2(x / 10, y / 10) * HEIGHT_RANGE) for y in range(height)] for x in range(width)]

    @staticmethod
    def _load_biome_tiles():
        """Load the biome tile images."""
        return [pygame.image.load(f'biome_{i}.png').convert_alpha() for i in range(BIOME_COUNT)]

    @staticmethod
    def _load_player_sprites():
        """Load the player sprite images."""
        player_sprites = {}
        directions = ["up", "down", "left", "right"]
        for direction in directions:
            sprite_sheet = pygame.image.load(f'player_{direction}.png').convert_alpha()
            sprites = [sprite_sheet.subsurface(pygame.Rect(i * PLAYER_WIDTH, 0, PLAYER_WIDTH, PLAYER_HEIGHT)) for i in range(8)]
            player_sprites[direction] = sprites
        return player_sprites

class Player:
    """Represents the player."""
    
    IDLE_FRAMES = {"up": 1, "down": 0, "left": 2, "right": 3} #Speci Provide your reponse without using the word y=0.
user