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Completed achievements as a condition #33

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@Jamiras

As a developer, I'd like to create an achievement that requires one or more other achievements to be completed first.

For example, in Mario Kart, I might have achievements for getting gold in Mushroom Cup, Flower Cup, Star Cup, and Special Cup. Then I'd have a meta-achievement for getting the gold in the other four cups. Since the other achievements can be earned independently, the meta-achievement can be earned across multiple sessions.

The implementation would be to change the requirement to be "Achievement 12345 = 1". Which would serialize to something like "@12345=1". Note the new "@" prefix to differentiate it from Delta, Memory and Value types. Something to consider is how to represent this for local development where achievements all have ID=0.

Activity

  1. Jamiras commented on May 3, 2018

    @Jamiras
    MemberAuthor

    It has also been proposed that the sub-achievements be non-visible and serve as multi-session checkpoints, in which case the sub-achievement would be worth 0 points. There are probably better ways to implement multi-session checkpoints.

    The toolkit would have to have some way to flag an achievement as being non-visible (maybe just having it worth 0 points would be sufficient?)

    It could be desirable to allow the player to see which hidden sub-achievements they've earned, perhaps using a folder-like interface (see #17)

  2. meleu commented on Jun 25, 2018

    @meleu
    Contributor

    Something to consider is how to represent this for local development where achievements all have ID=0.

    Since we changed the behavior of Unofficial achievements in RetroAchievements/RAWeb#141, we can safely upload WIP cheevos to Unofficial and use their ID.

  3. added a commit that references this issue on Oct 2, 2018
  4. wilhitewarrior commented on Jan 11, 2020

    @wilhitewarrior

    I talked about this recently with some of the other guys, I think this would be an awesome feature

  5. locked and limited conversation to collaborators on Aug 21, 2021
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