Ability.h

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// SPDX-FileCopyrightText: 2026 Valentin Eloy
// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once

 
#include <optional>
#include <span>
#include <string_view>
 
namespace core {

enum class Ability {
    Strength,
    Dexterity,
    Constitution,
    Intelligence,
    Wisdom,
    Charisma,
};

[[nodiscard]] constexpr int abilityModifier(int score) noexcept {
    const int ecart = score - 10;
    // `ecart / 2` tronquerait vers zéro pour un écart négatif impair : -3 / 2 == -1, et non -2.
    return ecart >= 0 ? ecart / 2 : (ecart - 1) / 2;
}

[[nodiscard]] std::string_view abilityName(Ability ability) noexcept;

[[nodiscard]] std::optional<Ability> parseAbility(std::string_view name) noexcept;

[[nodiscard]] std::span<const Ability> allAbilities() noexcept;
 
}  // namespace core