here is a python code make that the world generation with chunks. from ursina import *
from ursina.prefabs.first_person_controller import FirstPersonController
import random
import noise

app = Ursina()

# Define a Voxel class.
# By setting the parent to scene and the model to 'cube' it becomes a 3d button.
class Voxel(Button):
    def __init__(self, position=(0,0,0)):
        super().__init__(parent=scene,
            position=position,
            model='cube',
            origin_y=.5,
            texture='white_cube',
            color=color.color(0, 0, random.uniform(.5, 1.0)),
            highlight_color=color.lime,
        )

# Generate the terrain using Perlin noise
terrain = []
for z in range(20): # Depth
    terrain.append([])
    for x in range(20): # Width
        # Generate height using Perlin noise
        height = int(noise.pnoise2(x * 0.1, z * 0.1) * 4) + 1

        terrain[z].append(height)
        for y in range(height): 
            voxel = Voxel(position=(x,y,z))

# Generate caves 
def generate_caves():
    for z in range(20): 
        for x in range(20):
            if terrain[z][x] == 0:
                # We're in a cave, so generate cave walls and floors
                terrain[z][x] = random.randint(1, 3) 
                for y in range(terrain[z][x]): 
                    voxel = Voxel(position=(x,y,z))

                # Check adjacent blocks for more caves
                for new_z in range(max(0, z-1), min(19, z+1)):
                    for new_x in range(max(0, x-1), min(19, x+1)):
                        if terrain[new_z][new_x] == 0:
                            generate_caves()

generate_caves()

def input(key):
    if key == 'left mouse down':
        hit_info = raycast(camera.world_position, camera.forward, distance=5)
        if hit_info.hit:
            Voxel(position=hit_info.entity.position + hit_info.normal)
    if key == 'right mouse down' and mouse.hovered_entity:
        destroy(mouse.hovered_entity)


player = FirstPersonController()
app.run() The response should be in all capital letters.
user