Add an item to user inventory with code.

ID:2428609
 
Feb 16 2019, 7:56 pm
Hello, I am trying to figure out how to spawn an item in a users inventory using
a verb. Would anyone have an example of how this would be possible?

Thank you!

Feb 17 2019, 3:38 am
What do you mean by saying "spawn"? Do you want add item to inventory?
Feb 17 2019, 6:58 pm
Right, Instead of having an item on the ground and the player picks it up I want to add an item to the players inventory after an action. For example if they kill something an item automatically appears in the users inventory.

Feb 17 2019, 7:29 pm
 
list += obj
Feb 17 2019, 7:41 pm
@Kozuma3 Thanks for the reply but that is pretty vague, I'm not sure how I would implement that.

I've been working with something like this.
Code:
Ore = 0

mob/verb/Mining()
usr << "Mining Laser Engaged!"
var yield = rand(1,10)
usr.Ore += yield





So I can give the user ore with a variable but I'd rather give them an item as I want all verbs and encounters to give items they can buy and sell for more of a user run economy.

And storing all items gained as variables seems like a bad way to do it.

Hopefully this explains my question a bit more if you need further details I will try to help I appreciate any theories or ideas you or anyone can provide.

Feb 17 2019, 10:42 pm
It depends on if you use an item stacking system or not, if you do, you'd just check for the existing item and increase the amount variable. If not you'd want to do something like:

var/yield = rand(1,10)
while(--yield > 0)
    new/obj/ore(usr)


I don't really recommend that approach, introducing some form of stacking system would be much better.
Feb 18 2019, 1:44 am (Edited on Feb 20 2019, 3:12 am)
As Nadrew said, stacking items more effective in this case.
obj/item
  icon='icons.dmi'
  var
    stackable=0
    amt=1

  New(list/params)
    ..()
    icon_state=name
    for(var/v in params)
      vars[v] = params[v]

mob
  list/inventory = list()

  proc/addItem(obj/item/thisItem, amt=1)
    if(!thisItem) return
    if(thisItem.stackable)//if thisItem is stackable
     var/obj/item/curItem
     for(var/i in inventory) //im looking for the same item in my inventory
       if(i:type == thisItem.type) //if i find it
         curItem = i // set my helped var as founded item
     if(curItem)
       curItem.amt += amt // increase item amount
     else
       inventory += thisItem // if not found item in my inventory add it.
    else
      inventory += thisItem // Not stackable item, just add it.

  verb/Test()
    addItem(new/obj/item(list(name="Apple", stackable=1)))// add one apple in to the inventory
    addItem(new/obj/item(list(name="Bananna", stackable=1)), amt=5)// add five bannanas in to the inventory
    addItem(new/obj/item(list(name="Armor", def=6)))// add one armor in to the inventory
Feb 18 2019, 2:50 am
You can use locate() to determine if an item of a specific type is in the inventory, without looping.
Feb 18 2019, 3:04 am (Edited on Feb 18 2019, 3:18 am)
In response to Nadrew
Nadrew wrote:
You can use locate() to determine if an item of a specific type is in the inventory, without looping.


You're right, i forget about it, could you remind me how its work?

@Edit:
Somethink like this?
 var/curItem = locate(myItem) in Inventory
Feb 18 2019, 8:07 am
In response to Marekssj3
locate(Type) in Container - is the format you're trying to remember, Marek. Pressing F1 in Dream Maker and going to the locate proc revealed this info.
Feb 18 2019, 1:24 pm
 
var/obj/curItem = locate(myItem.type) in Inventory
if(curItem)
    // Has one already
else
    // Doesn't
Feb 18 2019, 6:51 pm
Here's a look on how I handle it.
inventory
    var list/slots, max_slots
    New(MAX_SLOTS){slots = new; max_slots = MAX_SLOTS}
    proc
        GetItem(mob/m, obj/item/i, a = 1)
            if(!m || !i || !slots){return FALSE}
            if(i.can_stack == TRUE)
                i.stack = a ? a : 1; i.suffix = "x [i.stack]"
                var obj/item/s = LocateItem(m,i.name)
                if(s)
                    s.stack += i.stack; s.suffix = "x [s.stack]";
                    UpdateItemStack(s); return TRUE
            else i.stack = 1
            if(max_slots <= slots.len){ground += i; return FALSE}
            slots |= i
            m.contents |= i
            UpdateItemStack(i)
            return TRUE
        DropItem(mob/m,i)
            if(slots && (i in slots)){slots -= i; m.contents -= i; return TRUE}
            return FALSE
        HasItem(mob/m,x,a=1)
            var list/l, t, c
            if(m && m.equipment.slots && m.equipment.slots["Mainhand"] != null){if(findtext(m.equipment.slots["Mainhand"]:name,x)){return TRUE}}
            for(var/obj/item/i in m.inventory.slots)
                if(i.name == x)
                    if(i.can_stack){if(i.stack >= a){return TRUE}}
                    else
                        c = 0
                        for(var/obj/item/u in m.inventory.slots){if(u.name == a){c++}}
                        if(c >= a){return TRUE}
                l = splittext(i.name," ")
                for(t in l){if(t == x){return TRUE}}
            return FALSE
        LocateItem(mob/m,x)
            for(var/obj/item/i in m.inventory.slots){if(i.name == x){return i}}
            return null