runtime error: Cannot create objects of type null.

ID:1361614
 
Aug 25 2013, 9:40 am
(See the best response by Neimo.)
good afternoon this is my problem:
when talking to NPC and try to buy the explosive tag tells me :

runtime error: Cannot create objects of type null.
proc name: DblClick (/mob/npc/Merchant2/DblClick)
usr: JAIDER (/mob)
src: Vendedor de Armas arrojadizas (/mob/npc/Merchant2)
call stack:
Vendedor de Armas arrojadizas (/mob/npc/Merchant2): DblClick(JAIDER (/mob))
JAIDER (/mob): HablarconF()
//-------------------------------------------//
this is the code of NPC
mob/npc
    Merchant2
        name = "Vendedor de Armas arrojadizas"
        icon = 'waterwots.dmi'
        icon_state="salesperson"
        DblClick()
            if(src in oview(2))
                var/list/cosas         
                cosas = new/list()     
                cosas.Add(/obj/ExplodingTag)      
                var/list/cosas2=list()
                for(var/F in cosas)
                    if(F==/obj/ExplodingTag)continue
                    var/obj/A=new F
                    A.dir=1
                    A.name="[A.name] - [A.price]"
                    cosas2+=A
                var/obj/b=skinput(usr,"Que deseas comprar hoy?",options=cosas2,wait=6)
                del cosas
                del cosas2
                if(!b)return
                b.name=b.oname
                if(b.name=="Sello Explosivo")
                    var/cuanto = skinwrite(usr,"Cuantos [b.name](s) quieres comprar?")//html
                    if(!cuanto)return
                    cuanto=text2num(cuanto)
                    if(!isnum(cuanto))
                        usr<<"Escribe solo numeros!"
                        return
                    if(usr.Yen >= cuanto*b.price&&cuanto>0)
                        var/contador=0

                        for(var/obj/ExplodingTag/Q in usr.contents)
                            if(Q.name==b.name)
                                contador+=1

                        if(b.name=="Sello Explosivo"&&contador>=20)
                            usr<<"Solo puedes tener 20 al mismo tiempo!"
                            return
                        if(b.name=="Bomba de Humo"&&contador>=20)
                            usr<<"Solo puedes tener 10 al mismo tiempo!"
                            return
                        usr.Yen -= cuanto*b.price
                        if(contador<=0)
                            var/obj/ExplodingTag/Q = "/obj/[b.name]"
                            Q=new Q
                            Q.loc = usr
                            Q.ammount+=cuanto
                            Q.name= "[Q.name] ([Q.ammount])"
                            goto com
                        else
                            for(var/obj/ExplodingTag/Q in usr.contents)
                                if(Q.name==b.name)
                                    Q.ammount+=cuanto
                                    Q.name= "[Q.name] ([Q.ammount])"
                                    break
                        com
                        usr<<'monedas.ogg'
                        usr<<"Gracias por tu compra!"
                        usr.SaveT()
                        return
                    else
                        usr<<"No tienes suficiente dinero!"
                        return

and this is the code of obj:
obj
    ExplodingTag
        name = "Sello Explosivo"
        oname = "Sello Explosivo"
        icon = 'explodingtag.dmi'
        worn = 0
        price = 1000
        verb
            Poner_sello_explosivo()
                if(usr.firing||usr.Frozen)
                    usr<<"No puedes hacer esto ahora"
                    return
                if(usr.tagset>=5)
                    usr<<"Solo puedes tener equipados 5 a la vez."
                    return
                if(!src.tagset)
                    var/obj/ExplodingTag/B = new/obj/ExplodingTag
                    B.loc = src.loc
                    B.Gowner=usr
                    B.tagset=1
                    usr.tagset+=1
                    B.icon_state="fire"
                    usr.verbs+= new /mob/tag/verb/Explode
                    for(var/obj/ExplodingTag/O in usr.contents)
                        O.ammount-=1
                        if(O.ammount<=0)
                            del(O)
                        else
                            src.name="[O.oname] ([O.ammount])"

                    usr.random=rand(1,3)
                    if(usr.random==3)
                        usr<<"Tu habilidad de trampas aumenta!"
                        usr.trapskill+=100


hope please help me as I'm about to go crazy ._.
Aug 25 2013, 10:14 am
Best response
Another thing is that he is trying to create an object that isn't defined.

var/obj/ExplodingTag/Q = "/obj/[b.name]"
translates to, with his next line:
Q = new "/obj/Sello Explosivo"

I doubt that's the intended way he wanted to do it, though. Which means he should be using the type variable instead.

var/obj/ExplodingTag/Q = new(usr)
// Q = new "/obj/[b.name] this line isn't even needed
Q.amount += x
Q.name = Q.name + " ([Q.amount])"
Aug 25 2013, 11:30 am
the problem persists after placing this code :/
                            var/obj/ExplodingTag/Q = new(usr)
                            Q.ammount+=cuanto
                            Q.name= Q.name +"([Q.ammount])"
                            goto com

runtime error: Cannot create objects of type null.
proc name: DblClick (/mob/npc/Merchant2/DblClick)
usr: JAIDER (/mob)
src: Vendedor de Armas arrojadizas (/mob/npc/Merchant2)
call stack:
Vendedor de Armas arrojadizas (/mob/npc/Merchant2): DblClick(JAIDER (/mob))
JAIDER (/mob): HablarconF()
Aug 25 2013, 11:45 am
In response to JEY_SENSEY
Anywhere in your code place this:

#define debug 1

After you do that, run the code and tell me what the error says this time.
Aug 25 2013, 12:17 pm
follows the same type of error:-s
//---------------------
runtime error: Cannot create objects of type null.
proc name: DblClick (/mob/npc/Merchant2/DblClick)
usr: JAIDER (/mob)
src: Vendedor de Armas arrojadizas (/mob/npc/Merchant2)
call stack:
Vendedor de Armas arrojadizas (/mob/npc/Merchant2): DblClick(JAIDER (/mob))
JAIDER (/mob): HablarconF()
//----------------------
Aug 25 2013, 12:31 pm
In response to JEY_SENSEY
 
mob/merchant
    DblClick()
        var/mob/m = usr
        if(get_dist(src, m) > 2)
            m << "too far away"
            return
        // generate the list of objects
        var/list/items = list(new/obj/apple, new/obj/orange)
        var/list/display = new
        // update the display list
        for(var/obj/o in items)
            display["[o.name] - [o.price]"] = o
        // select the desired item
        var/x = input(usr, "desc", "title") in display
        var/obj/o = display[x]
        // now purchase it
        switch(alert(m, "are you sure you want to buy [o.name]?", "purchase", "yes", "no"))
            if("no")
                return
        // check whether the user already has it
        if(locate(o) in m.contents)
            // increase the quantity
            o = locate(o) in m.contents // iffy about this
            o.amount ++
        else
            m.contents += o
            o.amount = 1
        m << "you purchased \a [o.name]"
Aug 25 2013, 3:59 pm
I'm sorry and thanks so much but it's not what I'm looking for, my problem is that I recognize that specific object and the others if as I put in the complete code below:
mob/npc
    Merchant2
        name = "salesman"
        icon = 'waterwots.dmi'
        icon_state="salesperson"
        DblClick()
            if(src in oview(2))
                var/list/cosas
                cosas = new/list()
                cosas.Add(/obj/Shuriken,/obj/Kunai,/obj/ExplodingTag,/obj/Bombadehumo,/obj/Windmill,/obj/Trikunai)
                var/list/cosas2=list()
                for(var/F in cosas)
                    if(F==/obj/Shuriken&&F==/obj/Kunai&&F==/obj/ExplodingTag&&F==/obj/Bombadehumo&&F==/obj/Windmill&&F==/obj/Trikunai)continue
                    var/obj/A=new F
                    A.dir=1
                    A.name="[A.name] - [A.price]"
                    cosas2+=A
                var/obj/b=skinput(usr,"You want to buy today?",options=cosas2,wait=6)//input into the skin leaving with icons.
                del cosas
                del cosas2
                if(!b)return
                b.name=b.oname
                if(b.name=="Shuriken"||b.name=="Kunai"||b.name=="Bomba de Humo"||b.name=="Sello Explosivo")
                    var/cuanto = skinwrite(usr,"few [b.name](s) want to buy?")//enter the amount on skin input
                    if(!cuanto)return//after entering the amount of explosives or bombs seals get the error this:
/*
runtime error: Cannot create objects of type null.

proc name: DblClick (/mob/npc/Merchant2/DblClick)
usr: JAIDER (/mob)
src: salesman (/mob/npc/Merchant2)
call stack:
salesman (/mob/npc/Merchant2):
DblClick(nameusr (/mob))
nameusr (/mob): talkverb()
*/
//the strange thing is that only fail pump seals and other objects the perfect work.
                    cuanto=text2num(cuanto)
                    if(!isnum(cuanto))
                        usr<<"Enter just numbers!"
                        return
                    if(usr.Yen >= cuanto*b.price&&cuanto>0)
                        var/contador=0
                        for(var/obj/Shuriken/O in usr.contents)
                            if(O.name==b.name)
                                contador+=1

                        for(var/obj/Kunai/P in usr.contents)
                            if(P.name==b.name)
                                contador+=1

                        for(var/obj/ExplodingTag/Q in usr.contents)
                            if(Q.name==b.name)
                                contador+=1

                        for(var/obj/Bombadehumo/R in usr.contents)
                            if(R.name==b.name)
                                contador+=1

                        for(var/obj/Windmill/S in usr.contents)
                            if(S.name==b.name)
                                contador+=1

                        for(var/obj/Trikunai/T in usr.contents)
                            if(T.name==b.name)
                                contador+=1

                        if(b.name=="Sello Explosivo"&&contador>=20)
                            usr<<"You can only have 20 at the same time!"
                            return
                        if(b.name=="Bomba de Humo"&&contador>=20)
                            usr<<"You can only have 10 at the same time!"
                            return
                        usr.Yen -= cuanto*b.price
                        if(contador<=0)
                            var/obj/Shuriken/O = "/obj/[b.name]"
                            O=new O
                            O.loc = usr
                            O.ammount+=cuanto
                            O.name= "[O.name] ([O.ammount])"
                            goto com

                            var/obj/Kunai/P = "/obj/[b.name]"
                            P=new P
                            P.loc = usr
                            P.ammount+=cuanto
                            P.name= "[P.name] ([P.ammount])"
                            goto com
//------------------------- THESE ARE THE SEALS
                            var/obj/ExplodingTag/Q = "/obj/[b.name]"
                            Q=new Q
                            Q.loc = usr
                            Q.ammount+=cuanto
                            Q.name= "[Q.name] ([Q.ammount])"
                            goto com
//-------------------------- THESE IS A BOMBS
                            var/obj/Bombadehumo/R = "/obj/[b.name]"
                            R=new R
                            R.loc = usr
                            R.ammount+=cuanto
                            R.name= "[R.name] ([R.ammount])"
                            goto com
//---------------------------------------------
                            var/obj/Windmill/S = "/obj/[b.name]"
                            S=new S
                            S.loc = usr
                            S.ammount+=cuanto
                            S.name= "[S.name] ([S.ammount])"
                            goto com

                            var/obj/Trikunai/T = "/obj/[b.name]"
                            T=new T
                            T.loc = usr
                            T.ammount+=cuanto
                            T.name= "[T.name] ([T.ammount])"
                            goto com
                        else
                            for(var/obj/Shuriken/O in usr.contents)
                                if(O.name==b.name)
                                    O.ammount+=cuanto
                                    O.name= "[O.name] ([O.ammount])"
                                    break

                            for(var/obj/Kunai/P in usr.contents)
                                if(P.name==b.name)
                                    P.ammount+=cuanto
                                    P.name= "[P.name] ([P.ammount])"
                                    break

                            for(var/obj/ExplodingTag/Q in usr.contents)
                                if(Q.name==b.name)
                                    Q.ammount+=cuanto
                                    Q.name= "[Q.name] ([Q.ammount])"
                                    break

                            for(var/obj/Bombadehumo/R in usr.contents)
                                if(R.name==b.name)
                                    R.ammount+=cuanto
                                    R.name= "[R.name] ([R.ammount])"
                                    break

                            for(var/obj/Windmill/S in usr.contents)
                                if(S.name==b.name)
                                    S.ammount+=cuanto
                                    S.name= "[S.name] ([S.ammount])"
                                    break

                            for(var/obj/Trikunai/T in usr.contents)
                                if(T.name==b.name)
                                    T.ammount+=cuanto
                                    T.name= "[T.name] ([T.ammount])"
                                    break

                        com
                        usr<<'monedas.ogg'
                        usr<<"Thank you for your purchase!"
                        usr.SaveT()
                        return
                    else
                        usr<<"You do not have enough money!"
                        return

                if(usr.Yen>=b.price)
                    var/i=0
                    for(var/obj/Windmill/R in usr.contents)
                        i+=1
                    for(var/obj/Trikunai/R in usr.contents)
                        i+=1
                    if(i>1)
                        usr<<"You can only have 2 at the same time!"
                        return
                    usr.Yen-=b.price
                    b.loc=usr
                    usr<<'monedas.ogg'
                    usr<<"Thank you for your purchase!"
                    usr.SaveT()
                else
                    usr<<"Thank you for your purchase!"
Aug 25 2013, 4:17 pm
In response to JEY_SENSEY
You're saying that works?
Aug 25 2013, 5:14 pm
sorry what is he referring to? , My English is not very good
Aug 25 2013, 5:34 pm
okey thank you very much for your help I solved the porblema the, as you said he was creating an object with a name that did not exist in the codes, which ise was to replace this code:
obj
    ExplodingTag//different names
        name = "Sello Explosivo"//different names
        oname = "Sello Explosivo"
        icon = 'explodingtag.dmi'
        worn = 0
        price = 1000
        verb
            Poner_sello_explosivo()
            //etc...etc...etc..

for this other:
obj
    Sello_Explosivo//equal names
        name = "Sello_Explosivo"//equal names
        oname = "Sello_Explosivo"//equal names
        icon = 'explodingtag.dmi'
        worn = 0
        price = 1000
        verb
            Poner_sello_explosivo()

thank you very much for your help and your patience :)
**RESOLVED**