HealthComponent.hpp

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/*
 * =====================================================================================
 *
 *       Filename:  HealthComponent.hpp
 *
 *    Description:
 *
 *        Created:  19/01/2018 16:38:47
 *
 *         Author:  Quentin Bazin, <quent42340@gmail.com>
 *
 * =====================================================================================
 */
#ifndef GK_HEALTHCOMPONENT_HPP_
#define GK_HEALTHCOMPONENT_HPP_

#include "gk/core/Timer.hpp"

namespace gk {

class HealthComponent {
    public:
        HealthComponent(const u16 maxLife, const u16 life = 0, const u16 hurtTime = 0)
            : m_maxLife(maxLife), m_life(life ? life : maxLife), m_hurtTime(hurtTime) {}

        void setLife(const u16 newLife) { m_life = (newLife > m_maxLife) ? m_maxLife : newLife; }
        void addLife(const u16 lifeAdded) { setLife(m_life + lifeAdded); }
        void removeLife(const u16 lifeRemoved) {
            if (!m_hurtTime || !m_hurtTimer.isStarted() || m_hurtTimer.time() > m_hurtTime) {
                (lifeRemoved > m_life) ? setLife(0) : setLife(m_life - lifeRemoved);

                if (m_hurtTime) {
                    m_hurtTimer.reset();
                    m_hurtTimer.start();
                }
            }
        }

        u16 life() const { return m_life; }
        u16 maxLife() const { return m_maxLife; }

        Timer hurtTimer() { return m_hurtTimer; }

    private:
        const u16 m_maxLife = 0;
        u16 m_life = 0;

        const u16 m_hurtTime = 0;

        Timer m_hurtTimer;
};

} // namespace gk

#endif // GK_HEALTHCOMPONENT_HPP_