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gamemodes/helix/plugins/bagsystem/sh_hooks.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+
+-- Called to check if an item can be transferred.
+-- Allows inventories to be nested inside containers. NOTE: Also needs custom bag base.
+function PLUGIN:CanTransferItem(itemObject, curInv, inventory)
+	if (SERVER) then
+		local client = itemObject.GetOwner and itemObject:GetOwner() or nil
+
+		if (IsValid(client) and curInv.GetReceivers) then
+			local bAuthorized = false
+
+			for _, v in ipairs(curInv:GetReceivers()) do
+				if (client == v) then
+					bAuthorized = true
+					break
+				end
+			end
+
+			if (!bAuthorized) then
+				return false
+			end
+		end
+	end
+
+	-- don't allow bags to be put inside bags
+	if (inventory.id != 0 and curInv.id != inventory.id) then
+		if (inventory.vars and inventory.vars.isBag and !inventory.vars.isContainer and !itemObject.allowNesting and itemObject.isBag) then
+			local owner = itemObject:GetOwner()
+
+			if (IsValid(owner)) then
+				owner:NotifyLocalized("nestedBags")
+			end
+
+			return false
+		end
+
+		if (inventory.vars and inventory.vars.restriction and #inventory.vars.restriction > 0) then
+			if (!table.HasValue(inventory.vars.restriction, itemObject.uniqueID) and !table.HasValue(inventory.vars.restriction, itemObject.base)) then
+				local owner = itemObject:GetOwner()
+
+				if (IsValid(owner)) then
+					owner:NotifyLocalized("restrictedBag")
+				end
+
+				return false
+			end
+		end
+	elseif (inventory.id != 0 and curInv.id == inventory.id) then
+		-- we are simply moving items around if we're transferring to the same inventory
+		return
+	end
+
+	inventory = ix.item.inventories[itemObject:GetData("id")]
+
+	-- don't allow transferring items that are in use
+	if (inventory) then
+		for _, v in pairs(inventory:GetItems()) do
+			if (v:GetData("equip") == true) then
+				local owner = itemObject:GetOwner()
+
+				if (owner and IsValid(owner)) then
+					owner:NotifyLocalized("equippedBag")
+				end
+
+				return false
+			end
+		end
+	end
+end