def _texture_path(texture_bricks_name):
    """
    Parameter
    ---------
    texture_bricks_name : str
        name of the world main texture 

    Return
    ------
    texture_path: (str) path corresponding to the texture_bricks_name

    Raises
    ------
    ValueError : raised if texture_bricks_name is unkwnonw
    """
    if texture_bricks_name == 'minecraft':
        return '/textures/texture_minecraft.png'
    elif texture_bricks_name == 'graffiti':
        return '/textures/texture_graffiti.png'
    elif texture_bricks_name == 'colours':
        return '/textures/texture_colours.png'
    else :
        raise ValueError('Unknown texture name '+ texture_bricks_name + ' in loading world')