38日目 2ヶ月遅れの5月病

日記

最近何にもモチベがわかなくて良くない．遅めの５月病というか中だるみ感がすごい．

今日書いたコード

struct LevelTracker {
    static var highestUnlockedLevel = 1
    var currentLevel = 1

    static func unlock(_ level: Int) {
        if level > highestUnlockedLevel { highestUnlockedLevel = level }
    }

    static func isUnlocked(_ level: Int) -> Bool {
        return level <= highestUnlockedLevel
    }

    @discardableResult
    mutating func advance(to level: Int) -> Bool {
        if LevelTracker.isUnlocked(level) {
            currentLevel = level
            return true
        } else {
            return false
        }
    }
}

class Player {
    var tracker = LevelTracker()
    let playerName: String

    func complete(level: Int) {
        LevelTracker.unlock(level + 1)
        tracker.advance(to: level + 1)
    }

    init(name: String) {
        playerName = name
    }
}

var player = Player(name: "Argyrios")
player.complete(level: 1)
print("highest unlocked level is now \(LevelTracker.highestUnlockedLevel)")
// Prints "highest unlocked level is now 2"

player = Player(name: "Beto")
if player.tracker.advance(to: 6) {
    print("player is now on level 6")
} else {
    print("level 6 hasn't yet been unlocked")
}
// Prints "level 6 hasn't yet been unlocked"

初めて知ったこと

@discardableResult初めて使った．Methodsの章は今日で終わりだがだいたい知っていた気がする．