DeployAnchor:
  type: command
  name: anchor
  usage: /anchor
  description: adds the block you are looking at as an anchor
  script:
  - if <player.location.cursor_on.material.name.is[!=].to[air]> {
    - modifyblock <player.location.cursor_on> m@lapis_block
    - flag <player> anchor:+:<player.location.cursor_on>
    - narrate "Your anchor has been saved."
  }

PullAnchor:
  type: world
  events:
    on player right clicks lapis_block with air:
      - if <player.flag[anchor].contains[<context.location>]> {
        - modifyblock <context.location> m@air
        - flag player anchor:<-:<context.location>
        - narrate "Your anchor has been removed."
      }