HumanInventory.c

См. документацию.

class HumanInventory : GameInventory
{   
    int m_syncClearUserReservationindex = -1;
    //int m_UserReservationToClear = -1;
    proto native EntityAI GetEntityInHands();

    proto native bool CanAddEntityInHands(EntityAI e);

    proto native bool TestAddEntityInHands(EntityAI e, bool do_resevation_check, bool do_item_check, bool do_lock_check, bool do_occupancy_test, bool do_script_check);

    proto native bool CanRemoveEntityInHands();
 
    proto native bool CanOpenInventory();

    proto native EntityAI CreateInHands(string typeName);
 
    proto native int GetUserReservedLocationCount();
    proto native int FindUserReservedLocationIndex(notnull EntityAI e);
    proto native int FindCollidingUserReservedLocationIndex(notnull EntityAI e, notnull InventoryLocation dst);
    proto native void GetUserReservedLocation(int index, out notnull InventoryLocation dst);
    proto native int FindFirstUserReservedLocationIndexForContainer(notnull EntityAI e);
    
    proto native void SetUserReservedLocation(notnull EntityAI eai, notnull InventoryLocation dst);
    proto native void ClearUserReservedLocation(notnull EntityAI eai);
    proto native bool ClearUserReservedLocationAtIndex(int index);
    proto native void ClearUserReservedLocationForContainer(notnull EntityAI eai);
    proto native bool GetDebugFlag();

    override EntityAI CreateInInventory(string type)
    {
        EntityAI newEntity = super.CreateInInventory(type);
        if (newEntity == null)
            newEntity = CreateInHands(type);
        return newEntity;
    }
    
    void ClearUserReservedLocationSynced(notnull EntityAI eai)
    {
        if (GetGame().IsClient())
            m_syncClearUserReservationindex = FindUserReservedLocationIndex(eai);
        else if (!GetGame().IsMultiplayer())
        {
            ClearUserReservedLocation(eai);
            eai.GetOnReleaseLock().Invoke(eai);
        }
            
    }
    
    void ClearUserReservedLocationAtIndexSynced(int index)
    {
        if (GetGame().IsClient())
            m_syncClearUserReservationindex = index;
        else if (!GetGame().IsMultiplayer())
        {
            ClearUserReservedLocationAtIndex(index);
            
            InventoryLocation il = new InventoryLocation();
            
            GetUserReservedLocation(index,il);
            EntityAI item = il.GetItem();
            item.GetOnReleaseLock().Invoke(item);
        }
            
    }
 
    Man GetManOwner()
    {
        return Man.Cast(GetInventoryOwner());
    }
 
    bool HasEntityInHands(EntityAI e)
    {
        return e == GetEntityInHands();
    }
    
    bool ProcessHandEvent(HandEventBase e);
 
    void OnHandsStateChanged(HandStateBase src, HandStateBase dst);
    void OnHandsExitedStableState(HandStateBase src, HandStateBase dst);
    void OnHandsEnteredStableState(HandStateBase src, HandStateBase dst);
    
    void OnEntityInHandsCreated(InventoryLocation src)
    {
        InventoryLocation cpy = new InventoryLocation();
        cpy.Copy(src);
        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] OnEntityInHandsCreated src=" + InventoryLocation.DumpToStringNullSafe(cpy));
        ProcessHandEvent(new HandEventCreated(GetManOwner(), src));
    }
 
    void OnEntityInHandsDestroyed(InventoryLocation src)
    {
        InventoryLocation cpy = new InventoryLocation();
        cpy.Copy(src);
        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] OnEntityInHandsDestroyed src=" + InventoryLocation.DumpToStringNullSafe(cpy));
        ProcessHandEvent(new HandEventDestroyed(GetManOwner(), cpy));
    }
 
    bool HandEvent(InventoryMode mode, HandEventBase e)
    {
        return true;
    }
    
    override bool DropEntity(InventoryMode mode, EntityAI owner, notnull EntityAI item)
    {
        InventoryLocation src = new InventoryLocation();
        if (item && item.GetInventory() && item.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::DropEntity(" + typename.EnumToString(InventoryMode, mode) + ") item=" + item);
                    HandEvent(mode, new HandEventDrop(GetManOwner(), src));
                    return true;
 
                default:
                    return super.DropEntity(mode, owner, item);
            }
        }
 
        Error("No inventory location");
        return false;
    }
    
    bool ThrowEntity(EntityAI item, vector dir, float force)
    {
        if (GetGame().IsServer() && GetGame().IsMultiplayer())
            return false;
        
        DayZPlayer player = DayZPlayer.Cast(item.GetHierarchyRootPlayer());
        InventoryMode invMode = InventoryMode.PREDICTIVE;
                
        if (player.NeedInventoryJunctureFromServer(item, item.GetHierarchyParent(), null))
            invMode = InventoryMode.JUNCTURE;
        
        InventoryLocation src = new InventoryLocation();
        if (item && item.GetInventory() && item.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::ThrowEntity item=" + item);
                    HandEventThrow throwEvent = new HandEventThrow(GetManOwner(), src);
                    throwEvent.SetForce(dir * force);
                    HandEvent(invMode, throwEvent);
                    return true;
 
                default:
                    DropEntity(invMode, player, item);
                    return true;
            }
        }
        Error("No inventory location");
        return false;
    }
        
    bool RedirectToHandEvent(InventoryMode mode, notnull InventoryLocation src, notnull InventoryLocation dst)
    {
        if (src.GetType() == InventoryLocationType.HANDS)
        {
            Man man_src = Man.Cast(src.GetParent());
            if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HI::RedirectToHandEvent - source location == HANDS, player has to handle this");
            
            EntityAI item = src.GetItem();
            
            int r_index = FindUserReservedLocationIndex(item);
 
            if (r_index >= 0)
            {
                InventoryLocation r_il = new InventoryLocation();
                GetUserReservedLocation(r_index,r_il);
 
                ClearUserReservedLocationAtIndex(r_index);
                int r_type = r_il.GetType();
                if (r_type == InventoryLocationType.CARGO || r_type == InventoryLocationType.PROXYCARGO)
                {
                    r_il.GetParent().GetOnReleaseLock().Invoke(item);
                }
                else if (r_type == InventoryLocationType.ATTACHMENT)
                {
                    r_il.GetParent().GetOnAttachmentReleaseLock().Invoke(item, r_il.GetSlot());
                }
            }
    
            man_src.GetHumanInventory().HandEvent(mode, new HandEventMoveTo(man_src, src, dst));
            return true;
        }
        
        if (dst.GetType() == InventoryLocationType.HANDS)
        {
            if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HI::RedirectToHandEvent - dst location == HANDS, player has to handle this");
                        
            Man man_dst = Man.Cast(dst.GetParent());
            man_dst.GetHumanInventory().HandEvent(mode, new HandEventTake(man_dst, src));
            return true;
        }
        return false;
    }
 
    override bool TakeToDst(InventoryMode mode, notnull InventoryLocation src, notnull InventoryLocation dst)
    {
        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] Take2Dst(" + typename.EnumToString(InventoryMode, mode) + ") src=" + InventoryLocation.DumpToStringNullSafe(src) + " dst=" + InventoryLocation.DumpToStringNullSafe(dst));
 
        if (GetManOwner().IsAlive() && RedirectToHandEvent(mode, src, dst))
            return true;
 
        return super.TakeToDst(mode, src, dst);
    }
 
    override bool TakeEntityToInventory(InventoryMode mode, FindInventoryLocationType flags, notnull EntityAI item)
    {
        InventoryLocation src = new InventoryLocation();
        if (item.GetInventory().GetCurrentInventoryLocation(src))
        {
            InventoryLocation dst = new InventoryLocation();
            if (FindFreeLocationFor(item, flags, dst))
            {
                if (RedirectToHandEvent(mode, src, dst))
                    return true;
 
                if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Take2Inv(" + typename.EnumToString(InventoryMode, mode) + ") item=" + item);
                return super.TakeEntityToInventory(mode, flags, item);
            }
            else
                return false; // no room
        }
        Error("HumanInventory::TakeEntityToInventory: No inventory location");
        return false;
    }

    override bool TakeEntityToCargoEx(InventoryMode mode, notnull EntityAI item, int idx, int row, int col)
    {
        InventoryLocation src = new InventoryLocation();
        if (item.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (GetInventoryOwner().IsAlive())
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Take2Cgo(" + typename.EnumToString(InventoryMode, mode) + ") item=" + item + " row=" + row + " col=" + col);
                        InventoryLocation dst = new InventoryLocation();
                        dst.SetCargo(GetInventoryOwner(), item, idx, row, col, item.GetInventory().GetFlipCargo());
 
                        HandEvent(mode, new HandEventMoveTo(GetManOwner(), src, dst));
                        return true;
                    }
 
                    return super.TakeEntityToCargoEx(mode, item, idx, row, col);
 
                default:
                    return super.TakeEntityToCargoEx(mode, item, idx, row, col);
            }
        }
 
        Error("HumanInventory::TakeEntityToCargoEx: No inventory location");
        return false;
    }
 
    override bool TakeEntityAsAttachmentEx(InventoryMode mode, notnull EntityAI item, int slot)
    {
        InventoryLocation src = new InventoryLocation();
        if (item.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (GetInventoryOwner().IsAlive())
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Take2Att(" + typename.EnumToString(InventoryMode, mode) + ") item=" + item + " slot=" + slot);
                        InventoryLocation dst = new InventoryLocation();
                        EntityAI src_entity = GetInventoryOwner();
                        dst.SetAttachment(src_entity, item, slot);
 
                        HandEvent(mode, new HandEventMoveTo(GetManOwner(), src, dst));
                        return true;
                    }
 
                    return super.TakeEntityAsAttachmentEx(mode, item, slot);
 
                default:
                    return super.TakeEntityAsAttachmentEx(mode, item, slot);
            }
        }
 
        Error("HumanInventory::TakeEntityAsAttachmentEx: No inventory location");
        return false;
    }
 
    override bool SwapEntities(InventoryMode mode, notnull EntityAI item1, notnull EntityAI item2)
    {
        InventoryLocation src1, src2, dst1, dst2;
        if (GameInventory.MakeSrcAndDstForSwap(item1, item2, src1, src2, dst1, dst2))
        {
            bool handled = false;
            switch (src1.GetType())
            {
                case InventoryLocationType.HANDS:
                    InventoryLocation fswap_dst2 = new InventoryLocation;
                    if ( SwappingToPreviousLocation(item1, item2, fswap_dst2) )
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Swap HandEventForceSwap(" + typename.EnumToString(InventoryMode, mode) + ") IH=src1=" + InventoryLocation.DumpToStringNullSafe(src1) + " src2=" + InventoryLocation.DumpToStringNullSafe(src2));
                        HandEvent(mode, new HandEventForceSwap(GetManOwner(), src1, src2, dst1, fswap_dst2));
                    }
                    else
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Swap HandEventSwap(" + typename.EnumToString(InventoryMode, mode) + ") src1=" + InventoryLocation.DumpToStringNullSafe(src1) + "src2=" + InventoryLocation.DumpToStringNullSafe(src2));
                        HandEvent(mode, new HandEventSwap(GetManOwner(), src1, src2, dst1, dst2));
                    }
                    handled = true;
                    break;
            }
 
            switch (src2.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::Swap HandEventSwap2(" + typename.EnumToString(InventoryMode, mode) + ") src1=" + InventoryLocation.DumpToStringNullSafe(src1) + " IH=src2=" + InventoryLocation.DumpToStringNullSafe(src2));
                    HandEvent(mode, new HandEventSwap(GetManOwner(), src2, src1, dst2, dst1));
                    handled = true;
                    break;
            }
 
            if (!handled)
                return super.SwapEntities(mode, item1, item2);
 
            return true;
        }
 
        Error("HumanInventory::SwapEntities: cannot create src1, src2, dst1, dst2");
        return false;
    }
 
    override bool ForceSwapEntities(InventoryMode mode, notnull EntityAI item1, notnull EntityAI item2, notnull InventoryLocation item2_dst)
    {
        InventoryLocation src1, src2, dst1;
        if (GameInventory.MakeSrcAndDstForForceSwap(item1, item2, src1, src2, dst1, item2_dst))
        {
            GameInventory manOwnerInventory = GetManOwner().GetInventory();
            
            if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::FSwap(" + typename.EnumToString(InventoryMode, mode) + ") dst1=" + InventoryLocation.DumpToStringNullSafe(dst1)+ " dst2=" + InventoryLocation.DumpToStringNullSafe(item2_dst));
            bool handled = false;
            switch (src1.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::FSwap-HND@1(" + typename.EnumToString(InventoryMode, mode) + ") src1=" + InventoryLocation.DumpToStringNullSafe(src1) + " src2=" + InventoryLocation.DumpToStringNullSafe(src2) +  " dst1=" + InventoryLocation.DumpToStringNullSafe(dst1) + " item2_dst=" + InventoryLocation.DumpToStringNullSafe(item2_dst));
                    HandEventBase e = new HandEventForceSwap(GetManOwner(), src1, src2, dst1, item2_dst);
                    e.ReserveInventory();
                    HandEvent(mode, e);
                    handled = true;
                    break;
 
            }
 
            switch (src2.GetType())
            {
                case InventoryLocationType.HANDS:
                    InventoryLocation fswap_dst2 = new InventoryLocation;
                    if ( SwappingToPreviousLocation(item2, item1, fswap_dst2))
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::FSwap-PREV(" + typename.EnumToString(InventoryMode, mode) + ") src1=" + InventoryLocation.DumpToStringNullSafe(src1) + " src2=" + InventoryLocation.DumpToStringNullSafe(src2) +  " dst1=" + InventoryLocation.DumpToStringNullSafe(dst1) + " fswap_dst2=" + InventoryLocation.DumpToStringNullSafe(fswap_dst2));
                        HandEvent(mode, new HandEventForceSwap(GetManOwner(), src1, src2, dst1, fswap_dst2));
                    }
                    else
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::FSwap-HND@2(" + typename.EnumToString(InventoryMode, mode) + ") src1=" + InventoryLocation.DumpToStringNullSafe(src1) + " src2=" + InventoryLocation.DumpToStringNullSafe(src2) +  " dst1=" + InventoryLocation.DumpToStringNullSafe(dst1) + " item2_dst=" + InventoryLocation.DumpToStringNullSafe(item2_dst));
                        HandEvent(mode, new HandEventForceSwap(GetManOwner(), src1, src2, dst1, item2_dst));
                    }
                
                    handled = true; 
                    break;
            }
            
            bool returnValue = true;
 
            if (!handled)
                returnValue = super.ForceSwapEntities(mode, item1, item2, item2_dst);
            
            return returnValue;
        }
 
        Error("HumanInventory::ForceSwapEntities: No inventory location");
        return false;
    }
 
    override bool LocalDestroyEntity(notnull EntityAI item)
    {
        InventoryLocation src = new InventoryLocation();
        if (item.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (GetInventoryOwner().IsAlive())
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::LocalDestroy inv item=" + item);
                        HandEvent(InventoryMode.LOCAL, new HandEventDestroy(GetManOwner(), src));
                        return true;
                    }
 
                    return super.LocalDestroyEntity(item);
 
                default:
                    return super.LocalDestroyEntity(item);
            }
        }
 
        Error("LocalDestroyEntity: No inventory location");
        return false;
    }
 
    override bool ReplaceItemWithNew(InventoryMode mode, ReplaceItemWithNewLambdaBase lambda)
    {
        EntityAI itemInHands = GetEntityInHands();
        if (itemInHands == lambda.m_OldItem)
            return ReplaceItemInHandsWithNew(mode, lambda);
 
        return super.ReplaceItemWithNew(mode, lambda);
    }
    
    bool ReplaceItemElsewhereWithNewInHands(InventoryMode mode, ReplaceItemWithNewLambdaBase lambda)
    {
        return ReplaceItemInElsewhereWithNewinHandsImpl(mode, new HandEventDestroyElsewhereAndReplaceWithNewInHands(GetManOwner(), null, lambda));
    }
    
    protected bool ReplaceItemInElsewhereWithNewinHandsImpl(InventoryMode mode, HandEventBase e)
    {
        if (GetEntityInHands())
        {
            Error("[inv] HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl Item in hands, event=" + e.DumpToString());
            return false;
        }
 
        InventoryLocation dst = e.GetDst();
        if (dst)
        {
            switch (dst.GetType())
            {
                case InventoryLocationType.HANDS:
                    if (GetInventoryOwner().IsAlive())
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl event=" + e);
                        HandEvent(mode, e);
                        return true;
                    }
 
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl DEAD_owner=" + GetInventoryOwner().GetName() +"="+ GetInventoryOwner());
                    Error("HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl TODO"); // replace-with-new in corpse's hands, not implemented
                    return false;
 
                default:
                    Error("[inv] HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl src has to be hands");
                    return false;
            }
        }
 
        Error("[inv] HumanInventory::ReplaceItemInElsewhereWithNewinHandsImpl no dst in event, event=" + e.DumpToString());
        return false;
    }
 
    protected bool ReplaceItemInHandsWithNewImpl(InventoryMode mode, HandEventBase e)
    {
        EntityAI itemInHands = GetEntityInHands();
        InventoryLocation src = new InventoryLocation();
        if (itemInHands && itemInHands.GetInventory().GetCurrentInventoryLocation(src))
        {
            switch (src.GetType())
            {
                case InventoryLocationType.HANDS:
                    if ((mode != InventoryMode.SERVER) && GetInventoryOwner().IsAlive())
                    {
                        if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::ReplaceItemInHandsWithNewImpl event=" + e);
                        HandEvent(mode, e);
                        return true;
                    }
 
                    if (LogManager.IsInventoryHFSMLogEnable()) hndDebugPrint("[inv] HumanInventory::ReplaceItemInHandsWithNewImpl DEAD_owner=" + GetInventoryOwner().GetName() +"="+ GetInventoryOwner());
                    HandEvent(mode, e);
                    return true;
 
                default:
                    Error("[inv] HumanInventory::ReplaceItemInHandsWithNewImpl src has to be hands");
                    return false;
            }
        }
 
        Error("[inv] HumanInventory::ReplaceItemInHandsWithNewImpl No item in hands, event=" + e.DumpToString());
        return false;
    }
 
    bool ReplaceItemInHandsWithNew(InventoryMode mode, ReplaceItemWithNewLambdaBase lambda)
    {
        return ReplaceItemInHandsWithNewImpl(mode, new HandEventDestroyAndReplaceWithNew(GetManOwner(), null, lambda));
    }
 
    bool ReplaceItemInHandsWithNewElsewhere(InventoryMode mode, ReplaceItemWithNewLambdaBase lambda)
    {
        return ReplaceItemInHandsWithNewImpl(mode, new HandEventDestroyAndReplaceWithNewElsewhere(GetManOwner(), null, lambda));
    }
    
    bool SwappingToPreviousLocation(EntityAI item1, EntityAI item2, out InventoryLocation dst)
    {
        bool SwapToPrevious = true;
        InventoryLocation src1 = new InventoryLocation();
        InventoryLocation src2 = new InventoryLocation();
        dst = new InventoryLocation();
        if (item1.GetInventory().GetCurrentInventoryLocation(src1) && item2.GetInventory().GetCurrentInventoryLocation(src2))
        {
            if (item1.m_OldLocation && item1.m_OldLocation.IsValid() && !item1.m_OldLocation.CollidesWith(src2) && item1.m_OldLocation.GetParent() && item1.m_OldLocation.GetParent().GetHierarchyRootPlayer()) 
            {
                dst.Copy(item1.m_OldLocation);
                
                int count = item1.GetInventory().GetSlotIdCount();
                if (count > 0 && src2.GetType() == InventoryLocationType.ATTACHMENT) //item2 is currently attached somewhere
                {
                    for (int i = 0; i < count; i++)
                    {
                        int slotID = item1.GetInventory().GetSlotId(i);
                        if (src2.GetSlot() == slotID) //can be attached into the same slot. And will be.
                            return false;
                    }
                }
                
                if (!item1.m_OldLocation.GetParent().GetInventory().LocationCanAddEntity(item1.m_OldLocation))
                    SwapToPrevious = false;
 
                if (CanSwapEntitiesEx(item1,item2))
                    SwapToPrevious = false;
                
                if (SwapToPrevious)
                    return true;
            }
        }
        
        return false;
    }
    
    void HandleInventoryManipulation();
    
    void Update(float delta_time)
    {
        HandleInventoryManipulation();
        if ( m_syncClearUserReservationindex != -1 && ScriptInputUserData.CanStoreInputUserData())
        {
            ScriptInputUserData ctx = new ScriptInputUserData();
            ctx.Write(INPUT_UDT_INVENTORY);
            ctx.Write(InventoryCommandType.USER_RESERVATION_CANCEL);
            ctx.Write(m_syncClearUserReservationindex);
            ctx.Send();
            
            InventoryLocation il = new InventoryLocation();
            
            GetUserReservedLocation(m_syncClearUserReservationindex,il);
            ClearUserReservedLocationAtIndex(m_syncClearUserReservationindex);
            EntityAI item = il.GetItem();
            item.GetOnReleaseLock().Invoke(item);
            m_syncClearUserReservationindex = -1;
        }
    }
 
    bool ValidateUserReservationCancel(inout Serializer ctx, InventoryValidation validation)
    {
        validation.m_Result = InventoryValidationResult.SUCCESS;
 
        int index = -1;
        if (!ctx.Read(index))
        {
            return true; 
        }
        
        ClearUserReservedLocationAtIndex(index);
        //m_UserReservationToClear = index;
        
        return true; 
    }
    
    bool PostDeferredEventTakeToDst(InventoryMode mode, notnull InventoryLocation src, notnull InventoryLocation dst)
    {
        return true;
    }
 
    
    bool PostDeferredForceSwapEntities(InventoryMode mode, notnull EntityAI item1, notnull EntityAI item2, notnull InventoryLocation dst1, notnull InventoryLocation dst2)
    {
        return true;
    }
}