// Used by a cheat button in the battle scene
    public void IncreaseHPMax(int increase)
    {
        int tempMax = HPMax;

        BStats.UpdateMax(increase, 0);
        hp += HPMax - tempMax;
    }
    /// <summary>
    /// Alter BattleStats when equipping an item.
    /// Also called when using for tomes.
    /// All items have BattleStats.
    /// </summary>
    /// <param name="name">the item to equip as an InvNames</param>
    public void Equip(InvNames name)
    {
        // First: Calculate new stats

        // retrieve bstats of item to remove, if one exists. If not, remains null.
        BattleStats remove            = null;
        InvItem     returnToStashItem = null;

        // compare kind of equip item to all the equipped items
        foreach (InvItem item in Equipment.Contents)
        {
            if (item.Slot == InvData.Data[name].Slot)
            {
                remove            = ((InvEqItem)InvData.Data[item.Name]).BStats;
                returnToStashItem = item;
                break;
            }
        }

        // retrieve bstats of item to add
        BattleStats add = (InvData.Data[name] as InvEqItem).BStats;

        // Reduce hero stats by the remove InvItem (if not null). Increase by the add InvItem.
        BStats.Equip(add, remove);


        // Second: move items from inventories

        // remove 1 of EQUIPPED item from partyStash
        if (BattleLoader.Party.Inventory.ContainsItem(name))
        {
            BattleLoader.Party.Inventory.RemoveInvItem(name, 1);
        }

        // remove UNEQUIPPED item from Equipment, add 1 to partyStash
        if (returnToStashItem != null)
        {
            Equipment.RemoveInvItem(returnToStashItem.Name, 1);
            BattleLoader.Party.Inventory.AddInvItem(returnToStashItem.Name, 1);
        }

        // add EQUIPPED item to hero's Equipment
        Equipment.AddInvItem(name, 1);
    }