Run Time Error With My Equipment System

ID:2166828
 
Oct 31 2016, 7:58 am
(See the best response by Lummox JR.)
Code:
obj/pickups/Oil_LanternO
    icon='equipment.dmi'
    icon_state="lantern"
    verb/Interact()
        set src in oview(1)
        set hidden = 1
        if(usr.LanternGrabbed==TRUE)
            usr<<"You already have a lantern. Don't hog them."
            return
        if(usr.InventoryCap == usr.InventoryCapMax)
            usr<<"You're out of inventory space."
        else
            usr.contents += Lantern
            usr.InventoryCap += 1
            usr.LanternGrabbed = TRUE
            del src 
            return


Problem description: The run time error is below. I have no idea what's happening. Been messing with it all morning.

runtime error: cannot append to list
proc name: Interact (/obj/pickups/Oil_LanternO/verb/Interact)
  source file: The Black Death.dm,364


Oct 31 2016, 9:52 am
What is 'Lantern' in the 'usr.contents += Lantern' line?

Throw a
  world << Lantern

in there right before you add it to contents.

I assume that is line 364?
Oct 31 2016, 9:58 am (Edited on Oct 31 2016, 11:02 am)
In response to Flick
EDIT: Got it all sorted.
Nov 1 2016, 11:30 pm
Best response
Wouldn't you be a whole lot better off with a generic Get() routine that you can call? It seems like you'd want to add all kinds of things to your inventory, so repeating the same code for each would be a very bad idea. Plus, that limits what you can do as far as updating a HUD and managing inventory and whatnot.
Nov 2 2016, 9:01 am
In response to Lummox JR
I just re-worked the entire inventory system to make it more manageable. Loads better.