inventorystore.hpp

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#ifndef GAME_MWWORLD_INVENTORYSTORE_H
#define GAME_MWWORLD_INVENTORYSTORE_H

#include "containerstore.hpp"

#include "../mwmechanics/magiceffects.hpp"

namespace ESM
{
    struct MagicEffect;
}

namespace MWMechanics
{
    class NpcStats;
}

namespace MWWorld
{
    class InventoryStoreListener
    {
    public:
        virtual void equipmentChanged () {}

        virtual void permanentEffectAdded (const ESM::MagicEffect *magicEffect, bool isNew) {}

    };

    class InventoryStore : public ContainerStore
    {
        public:

            static const int Slot_Helmet = 0;
            static const int Slot_Cuirass = 1;
            static const int Slot_Greaves = 2;
            static const int Slot_LeftPauldron = 3;
            static const int Slot_RightPauldron = 4;
            static const int Slot_LeftGauntlet = 5;
            static const int Slot_RightGauntlet = 6;
            static const int Slot_Boots = 7;
            static const int Slot_Shirt = 8;
            static const int Slot_Pants = 9;
            static const int Slot_Skirt = 10;
            static const int Slot_Robe = 11;
            static const int Slot_LeftRing = 12;
            static const int Slot_RightRing = 13;
            static const int Slot_Amulet = 14;
            static const int Slot_Belt = 15;
            static const int Slot_CarriedRight = 16;
            static const int Slot_CarriedLeft = 17;
            static const int Slot_Ammunition = 18;

            static const int Slots = 19;

            static const int Slot_NoSlot = -1;

        private:

            MWMechanics::MagicEffects mMagicEffects;

            InventoryStoreListener* mListener;

            // Enables updates of magic effects and actor model whenever items are equipped or unequipped.
            // This is disabled during autoequip to avoid excessive updates
            bool mUpdatesEnabled;

            bool mFirstAutoEquip;

            // Vanilla allows permanent effects with a random magnitude, so it needs to be stored here.
            // We also need this to only play sounds and particle effects when the item is equipped, rather than on every update.
            struct EffectParams
            {
                // Modifier to scale between min and max magnitude
                float mRandom;
                // Multiplier for when an effect was fully or partially resisted
                float mMultiplier;
            };

            typedef std::map<std::string, std::vector<EffectParams> > TEffectMagnitudes;
            TEffectMagnitudes mPermanentMagicEffectMagnitudes;

            typedef std::vector<ContainerStoreIterator> TSlots;

            TSlots mSlots;

            // selected magic item (for using enchantments of type "Cast once" or "Cast when used")
            ContainerStoreIterator mSelectedEnchantItem;

            // (item, max charge)
            typedef std::vector<std::pair<ContainerStoreIterator, float> > TRechargingItems;
            TRechargingItems mRechargingItems;

            bool mRechargingItemsUpToDate;

            void copySlots (const InventoryStore& store);

            void initSlots (TSlots& slots_);

            void updateMagicEffects(const Ptr& actor);
            void updateRechargingItems();

            void fireEquipmentChangedEvent(const Ptr& actor);

            virtual void storeEquipmentState (const MWWorld::LiveCellRefBase& ref, int index, ESM::InventoryState& inventory) const;
            virtual void readEquipmentState (const MWWorld::ContainerStoreIterator& iter, int index, const ESM::InventoryState& inventory);

            bool canActorAutoEquip(const MWWorld::Ptr& actor, const MWWorld::Ptr& item);

        public:

            InventoryStore();

            InventoryStore (const InventoryStore& store);

            InventoryStore& operator= (const InventoryStore& store);

            virtual InventoryStore* clone() { return new InventoryStore(*this); }

            virtual ContainerStoreIterator add (const Ptr& itemPtr, int count, const Ptr& actorPtr, bool setOwner=false);

            void equip (int slot, const ContainerStoreIterator& iterator, const Ptr& actor);

            bool isEquipped(const MWWorld::ConstPtr& item);

            void setSelectedEnchantItem(const ContainerStoreIterator& iterator);

            ContainerStoreIterator getSelectedEnchantItem();

            ContainerStoreIterator getSlot (int slot);

            void unequipAll(const MWWorld::Ptr& actor);

            void autoEquip (const MWWorld::Ptr& actor);

            void autoEquipShield(const MWWorld::Ptr& actor);

            const MWMechanics::MagicEffects& getMagicEffects() const;

            virtual void flagAsModified();

            virtual bool stacks (const ConstPtr& ptr1, const ConstPtr& ptr2);

            virtual int remove(const Ptr& item, int count, const Ptr& actor);

            ContainerStoreIterator unequipSlot(int slot, const Ptr& actor);

            ContainerStoreIterator unequipItem(const Ptr& item, const Ptr& actor);

            ContainerStoreIterator unequipItemQuantity(const Ptr& item, const Ptr& actor, int count);

            void setInvListener (InventoryStoreListener* listener, const Ptr& actor);

            InventoryStoreListener* getInvListener();

            void visitEffectSources (MWMechanics::EffectSourceVisitor& visitor);

            void rechargeItems (float duration);

            void purgeEffect (short effectId);

            void purgeEffect (short effectId, const std::string& sourceId);

            virtual void clear();

            virtual void writeState (ESM::InventoryState& state) const;

            virtual void readState (const ESM::InventoryState& state);
    };
}

#endif