Index

image  A, B

Achievements

    adding hooks

        GameCenterManager

        populateAchievementCache

    adding hooks in UFOs

        achievementWithIdentifierIsComplete

        Apple-provided interface

        didAuthenticate

        finishAbducting method

        resetAchievement method

        UFOGameViewController

    Apple’s benefit

        custom GUI

        graphical user interface (GUI)

    custom GUI

        achievementArray

        GameCenterManager

        NSArray object

        UFOAchievementViewController

        UFOViewController

        UIViewController

    feedback

        achievementCompletionLabel

        achievementCompletionView ...

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