[Sharlikran]

Warning: Spoiler

-- Returns true if the player is Harvesting
function Harvest.IsPlayerHarvesting()

	local InteractionType = GetInteractionType()
	if (InteractionType == INTERACTION_HARVEST) then
		return true
	end

	return false
end

-- Returns true if the player is Fishing
function Harvest.IsPlayerFishing()

	local InteractionType = GetInteractionType()
	if (InteractionType == INTERACTION_FISH) then
		return true
	end

	return false
end

-- Returns true if the player is Reading a Book
function Harvest.IsPlayerReading()

	local InteractionType = GetInteractionType()
	if (InteractionType == INTERACTION_BOOK) then
		return true
	end

	return false
end

-- Returns true if the player is Lockpicking
function Harvest.IsPlayerLockpicking()

	local InteractionType = GetInteractionType()
	if (InteractionType == INTERACTION_LOCKPICK) then
		return true
	end

	return false
end

-- Returns True when Unknown.  
-- This will not return true when using a blacksmith
-- Provisioning or clothing workstation
function Harvest.HarvestProvisioning()

	local InteractionType = GetCraftingInteractionType()
	if InteractionType == CRAFTING_TYPE_PROVISIONING then
		return true
	end

	return false
end

-- returns false when InteractionType is Invalid or Provisioning
-- True when it is a ALCHEMY, BLACKSMITHING, CLOTHIER
-- ENCHANTING, or WOODWORKING
function Harvest.ValidCraftingType()

	local InteractionType = GetCraftingInteractionType()
	if (InteractionType == (CRAFTING_TYPE_INVALID or CRAFTING_TYPE_PROVISIONING) ) then
		return false
	end

	return true
end

-- Returns True when Player is interacting with an Object
-- and doing any one of the following
-- Lockpicking
-- Harvesting
-- Reading
-- Fishing
function Harvest.IsPlayerBusy()

	if ( IsPlayerInteractingWithObject() and
		( Harvest.IsPlayerLockpicking() or 
		Harvest.IsPlayerReading() or 
		Harvest.IsPlayerFishing() or 
		Harvest.IsPlayerHarvesting() ) ) then

		return true
	end

	return false
end

I have a rather complex way of figuring out what the player is doing. The only routine I have not figured out is, "function Harvest.HarvestProvisioning()" I made that to track when a player is using the provisioning station. However, it doesn't fire at that time, nor does it fire when looting a Barrel. I don't use function Harvest.ValidCraftingType() yet because I'm not sure what the constants apply to.

I have other complex ways to check if the type of the item is invalid based on the Node Name. However it's not refined yet and still needs a lot of work. The basic idea is that I use the ID Numbers from Esohead and some Node Names. Shinni mentioned that using names may not be a good idea since they may change, however, these are basic names like Barrel, Crate, so they shouldn't change.

Also I am looking into using GetLootTargetInfo() InteractTargetType and GetLootItemLink.