Overlays

ID:158950
 
Jun 7 2009, 5:52 am
I know this is probably a noob question but I need help with overlays. I tried to search the How-To forum and none of the search results really helped so I decided to ask for myself. What I need is a code that I can add to my current codes and will add overlays when I equip something and remove the overlay when I unequip it. Here are my current procs and verbs for equip and unequip.

mob
    proc
        Equip(obj/O)
            if(!O || !O.slot) return
            if(equipment && equipment[O.slot])
                Unequip(equipment[O.slot])
                if(equipment && equipment[O.slot]) return   // unequip failed
            if(!equipment) equipment = new
            equipment[O.slot] = O
            UpdateInventory()
            UpdateEquipment()

        Unequip(obj/O)
            if(!O || !O.slot) return
            if(!equipment || equipment[O.slot]!=O) return   // failed
            equipment -= O.slot
            if(!equipment.len) equipment = null // reclaim the list
            UpdateInventory()
            UpdateEquipment()
obj
    verb
        Equip()
            if(slot) usr.Equip(src)

        Unequip()
            if(slot) usr.Unequip(src)


I don't know if this really matters but I'll be using icon states for this instead of individual icon files. For example the icon file would be items.dmi and the actual item I want to equip would be in that icon file with the name shirt.
Jun 7 2009, 9:08 am
Safest method.

Add the icon or object path to a list, named Overlays (notice the capitalization) or anything. Then when you add to it, it clears overlays and adds everything from that list to your overlays. And whenever you remove anything, you remove it from that list, remove all overlays again and re-apply from the list.

mob
 var/list/Overlays=new
 AddOverlay(o)
  Overlays+=o
  overlays=null
  overlays=Overlays
 RemoveOverlay(o)
  if(Overlays.Find(o)) Overlays.Remove(o)
  overlays=null
  overlays=Overlays


This WAS covered quite a few times, though.