CreatureLib/src/Battling/History/HistoryHolder.cpp

#include "HistoryHolder.hpp"
#include "HistoryElementKind.hpp"
#include "HistoryElements/AttackUseHistory.hpp"

namespace CreatureLib::Battling {
    ArbUt::OptionalBorrowedPtr<const HistoryElement> HistoryHolder::GetLastUsedAttack(u32 maxDepth) const noexcept {
        ArbUt::OptionalBorrowedPtr<const HistoryElement> c = _top;
        auto turn = _getTurnNumber();
        while (c.HasValue()) {
            if (maxDepth != 0 && turn - c.GetValue()->GetTurnNumber() > maxDepth - 1) {
                break;
            }
            if (c.GetValue()->GetKind() == HistoryElementKind::AttackUse) {
                return c;
            }
            c = c.GetValue()->GetPrevious();
        }
        return {};
    }

    ArbUt::OptionalBorrowedPtr<const HistoryElement>
    HistoryHolder::GetLastUsedAttackOnTarget(Creature* non_null target, u32 maxDepth) const noexcept {
        ArbUt::OptionalBorrowedPtr<const HistoryElement> c = _top;
        auto turn = _getTurnNumber();
        while (c.HasValue()) {
            if (maxDepth != 0 && turn - c.GetValue()->GetTurnNumber() > maxDepth - 1) {
                break;
            }
            if (c.GetValue()->GetKind() == HistoryElementKind::AttackUse) {
                if (c.ForceAs<const AttackUseHistory>().GetValue()->GetAttack()->GetTargets().Contains(target)) {
                    return c;
                }
            }
            c = c.GetValue()->GetPrevious();
        }
        return {};
    }

    ArbUt::OptionalBorrowedPtr<const HistoryElement>
    HistoryHolder::GetLastDamageOnTarget(const ArbUt::BorrowedPtr<const Creature>& creature,
                                         u32 maxDepth) const noexcept {
        ArbUt::OptionalBorrowedPtr<const HistoryElement> c = _top;
        auto turn = _getTurnNumber();
        while (c.HasValue()) {
            if (maxDepth != 0 && turn - c.GetValue()->GetTurnNumber() > maxDepth - 1) {
                break;
            }
            if (c.GetValue()->GetKind() == HistoryElementKind::Damage &&
                c.ForceAs<const DamageHistory>().GetValue()->GetTarget() == creature) {
                return c;
            }
            c = c.GetValue()->GetPrevious();
        }
        return {};
    }
}