I don't understand the problem

ID:143387
 
Sep 23 2007, 1:37 pm
Code:
obj/jobs/stove
    icon = 'obj.dmi'
    icon_state = "trash2"
    density = 1
    verb
        Cook()
            set src in view(1)
            if(usr.job != "Cook")
                usr << "I can't cook."
                return
            var/foodinusr = list()
            for(var/obj/Items/Food/O in usr)
                foodinusr += O
            var/f = input("What do you want to cook?","Cooking") in foodinusr + list("Cancel")
            if(f == "Cancel")
                return
            if(f:name == "Fish")
                switch(input(usr,"Make What?") in list ("Sushi (lvl 1)","Cancel"))//Change
                    if("Cancel")
                        return
                    if("Sushi (lvl 1)")//change
                        var/reqjoblvl = 1//Change Required job Lvl
                        var/result = "Sushi"//Change Result Name
                        if(usr.joblvl < reqjoblvl)
                            usr << "Need Higher Job Lvl"
                            return
                        usr << "Making [result]..."
                        if(usr.InventoryUp == 1)
                            usr:Inventory()
                            usr.lockinventory = 1
                        usr.move = 0
                        sleep(100 - usr.joblvl)
                        del(f)
                        var/resultnew = "/obj/Items/Foodresults/[result]"
                        new resultnew(usr)
                        var/jobup = rand(1,10)
                        if(jobup == 5)
                            usr.joblvl ++
                            usr << "Job Level Increased! It is now [usr.joblvl]."
                        usr << "Made [result]"
                        usr.lockinventory = 0
                        usr.move = 1
            if(f:name == "Egg")
                switch(input(usr,"Make What?") in list ("Fried Eggs (lvl 2)","Cancel"))//Change
                    if("Cancel")
                        return
                    if("Fried Eggs (lvl 2)")//change
                        var/reqjoblvl = 2//Change Required job Lvl
                        var/result = "Fried_Eggs"//Change Result Name
                        if(usr.joblvl < reqjoblvl)
                            usr << "Need Higher Job Lvl"
                            return
                        usr << "Making [result]..."
                        if(usr.InventoryUp == 1)
                            usr:Inventory()
                            usr.lockinventory = 1
                        usr.move = 0
                        sleep(100 - usr.joblvl)
                        del(f)
                        var/resultnew = "/obj/Items/Foodresults/[result]"
                        new resultnew(usr)
                        var/jobup = rand(1,10)
                        if(jobup == 5)
                            usr.joblvl ++
                            usr << "Job Level Increased! It is now [usr.joblvl]."
                        usr << "Made [result]"
                        usr.lockinventory = 0
                        usr.move = 1


Problem description:
Only Making Sushi gives a runtime error but it works. Fried Eggs is fine and I made it by copy pasting the same code.
runtime error: Cannot read null.name
proc name: Cook (/obj/jobs/stove/verb/Cook)
  usr: Justin (/mob)
  src: the stove (/obj/jobs/stove)
  call stack:
the stove (/obj/jobs/stove): Cook()

If anyone understands the problem please let me know.

Sep 23 2007, 2:59 pm
eh im not really sure what the problem is here
but try this to fix it maybe
foodinusr+="Cancel"
var/obj/f = input("What do you want to cook?","Cooking") as anything in foodinusr

thatll 1 - make it so you dont have to use :, which are a bad idea, always use .
and 2. possibly its not selecting from the list right, duno

and also! a sugestion, both of those codes do pretty much the exact same thing, make a proc that runs all the lines that are the same so you dont have to have them twice
never code anything twice that can simply be done once through a proc <.<

also if you turn on debug mode itll report the file and line number of the error