Dropped Item from inventory

[Well-met]

hello

this will be my last thread asking for assistance

For my custom character I wish to find a way to Transform:SetScale any item they drop from their inventory. The items on the ground behave the same as usual, they just have a different scale for cosmetic purposes. (in this case our character is slightly smaller than others)

I am positive it's about the component "inventoryitem.lua" with "InventoryItem:OnDropped". There's a ListenEvent:"ondropped" too however I just don't know how to reference any item that gets dropped. We want this to happen for this char only. Once again I don't know if I should do a AddComponentPostInit or just a function in character.lua?

help

[Ultroman]

You only need to extend the DropItem function of your character's inventory component.

AddPrefabPostInit("melium", function(inst)
	local old = inst.components.inventory.DropItem
	inst.components.inventory.DropItem = function(self, item, wholestack, randomdir, pos)
		local droppedItem = old(self, item, wholestack, randomdir, pos)
		local scaler = droppedItem:AddComponent("scaler")
		scaler:SetScale(0.4)
	end
end)

 

[Well-met]

@Ultroman Works good, however the character keeps saying "I can't do that" when dropping an item.

[Ultroman]

Ah yes, forgot to return the item. Also forgot to make sure to only execute the code if the item was actually dropped.

AddPrefabPostInit("melium", function(inst)
	local old = inst.components.inventory.DropItem
	inst.components.inventory.DropItem = function(self, item, wholestack, randomdir, pos)
		local droppedItem = old(self, item, wholestack, randomdir, pos)
		if droppedItem == nil then
			return
		end
		local scaler = droppedItem:AddComponent("scaler")
		scaler:SetScale(0.4)
		return droppedItem
	end
end)

 

Edited April 10, 2019 by Ultroman

[Well-met]

One last challenge, how could I limit this effect to body, weapon and head slots?

[Ultroman]

The inventory component has a function called IsItemEquipped(inst)

AddPrefabPostInit("melium", function(inst)
	local old = inst.components.inventory.DropItem
	inst.components.inventory.DropItem = function(self, item, wholestack, randomdir, pos)
		local doShrink = self:IsItemEquipped(item)
		local droppedItem = old(self, item, wholestack, randomdir, pos)
		if droppedItem == nil then
			return
		end
		if doShrink then
			local scaler = droppedItem:AddComponent("scaler")
			scaler:SetScale(0.4)
		end
		return droppedItem
	end
end)

 

[Ultroman]

For future reference, this is probably a better method. Applies scale only to items directly unequipped from equip-slots.

-- NEW SOLUTION

if GLOBAL.TheNet and GLOBAL.TheNet:GetIsServer() then
	AddPrefabPostInit("melium", function(inst)
		-- When you unequip something, an event is pushed, with information about what happened.
		-- As such, we do not need to extend any functions. We can just listen for the event.
		-- inst is the player holding the item, and data is a bunch of data about what just happened.
		-- This is AFTER the item has been unequipped, BUT the data contains information about which
		-- slot it was taken from, which item it was, and whether it slipped out unintentionally (frogs, rain).
		inst:ListenForEvent("unequip", function(inst, data)
			-- If you want to restrict this to certain equip-slots, just check e.g.
			-- if data.eslot == EQUIPSLOTS.HANDS
			-- if data.eslot == EQUIPSLOTS.BODY
			-- if data.eslot == EQUIPSLOTS.HANDS
			-- But anyway, you know this item is equippable and everything, since it was just unequipped
			--  by the game, so no more checks needed, really.
			
			if data.item then
				data.item.Transform:SetScale(0.85,0.85,0.85)
			end
		end)
	end)
end

 

Edited April 12, 2019 by Ultroman