Can I not allow items?

[Ex0sphere]

How do I make it so when I have a certain item, and i try to buy the another certain item, it has a message that says only one weapon at a time, and it doesn't let u buy the item.

 

[Light Alkmst]

create a trigger so that whenever a unit buys or picks up an item, check its inventory for any items you would classify as a weapon. (will need hardcoding for item ID's) if an item is already present, remove either of the items (depends on what you want) and print the text, and refund whatever costs were paid

 

[LurkerAspect]

It would look something like this:

Events
    Unit buys an item
Conditions
     Item type equal to (ur item here)
Actions
     If item count of (triggering unit) of type (ur item here) > 1 then
           Remove (item being manipulated) from (triggering unit)
           Game: Display message "you cannot have more than one item of this type"
           Player: Set (owner of (triggering unit)'s) current gold to (player (owner of (triggering unit)'s) current gold + (cost of item))
     Else
          Do Nothing

I don't have WE open, so I kinda just winged this but you should get the general idea

 

[Panda]

For checking the item class you could just set the item level of all weapons to for example 20.