Function load_spritesheet

load_spritesheet(
    key: string,
    url: string,
    spritesheet_config: ObjectConfig,
): void
Load the spritesheet into the scene for use. All spritesheet must be loaded before used in create_image.
Parameters
- key: string
  key associated with the spritesheet
- url: string
  path to the sound
- spritesheet_config: ObjectConfig
  config to determines frames within the spritesheet
Returns void