+ struct Rank {
+ creature::Creature *holder = nullptr;
+ double value = 0.0;
+ double time = 0.0;
+ operator bool() const noexcept { return holder; }
+ } rank[MAX];
+
+ operator bool() const noexcept { return rank[0]; }
+
+ Rank *begin() noexcept { return rank; }
+ const Rank *begin() const noexcept { return rank; }
+ const Rank *cbegin() const noexcept { return rank; }
+
+ Rank *end() noexcept { return rank + 10; }
+ const Rank *end() const noexcept { return rank + 10; }
+ const Rank *cend() const noexcept { return rank + 10; }