def get_texture_atlas(env):
    for obj in env.objects:
        if obj.type.name == "Texture2D":
            tree = obj.read_typetree()
            if (tree['m_Name'] == 'sactx-0-8192x8192-BC7-GlobalAtlas-243fa2cc'):
                return obj.read()
    return None

def import_magnus_images(env):
    atlas_data = get_texture_atlas(env)
    atlas_img = atlas_data.image

    input_magnus = get_input_magnus()
    print('Reading input files:')
    print(input_magnus)

    for obj in env.objects:
        if obj.type.name == "Sprite":
            tree = obj.read_typetree()
            if((tree['m_Name'], obj.path_id) in input_magnus):
                print('Copying ' + tree['m_Name'] + ' ' + str(obj.path_id))

                # Read the texture atlas data from the bundle
                sprite_data = obj.read()
                atlas = sprite_data.m_SpriteAtlas.read()

                # Find the data for the sprite (in this case an individial magnus image) in the texture atlas
                sprite_atlas_data = None
                for render_data in atlas.m_RenderDataMap:
                    if render_data[0] == sprite_data.m_RenderDataKey:
                        sprite_atlas_data = render_data[1]
                        break

                if sprite_atlas_data == None:
                    print('Error: Could not find Sprite Atlas Data matching this magnu\'s Render Data Key')
                    continue

                #sprite_atlas_data = atlas.m_RenderDataMap[sprite_data.m_RenderDataKey]
                texture = sprite_atlas_data.texture.read()
                texture_rect = sprite_atlas_data.textureRect

                # Get the coordinates in the texture atlas for the magnus we want to edit
                coords = get_atlas_coords(texture_rect, atlas_img.size)

                # Read and paste the new image file that we want to insert into the texture atlas
                new_img = read_img(create_img_name(tree['m_Name'], obj.path_id))
                atlas_img.paste(new_img, coords)

                # Save the change to the texture atlas
                texture.image = atlas_img
                texture.save()

    save_env_to_bundle(env)