wrapping my brain

ID:184396
 
Oct 8 2006, 11:55 am
i'm having trouble wrapping my brain around lists.
anyone that can explain it in a more simplified manner than the guide give it a shot.
Oct 8 2006, 12:06 pm
I had a problem with them too, but now I use in alsmot everything. I'm gonna give it a shot, but I'm sure someone can explain much better than I can..But here's the basic gist of them:

Contents for exmaple is a list, so lists are like contents.
Just like you can add things to contents, you can also to lists:

contents += exmaple object
listname += exmaple object


You can also add and remove stuff from lists with Add() and Remove() but I'm not quite sure of their efficiency.

The thing about lists other than contents, is that they can be global, hold more than just objects, and be named whatever you want them to be named with a few exceptions. Example:

var/list/Names = list("tom","bob","billy")
var/list/Numbers = list("1","2","3")


Note: There are also differnet ways to declare a new empty list. The way above, delcares a list with what you want in it. Below is my favorite method of declaring an empty list.

var/list/Name[0]


That is the simplest way I can explain it. Someone better at helping others, feel free to clarify, expand, or make your own.
Oct 8 2006, 12:13 pm
In response to Mecha Destroyer JD
Mecha Destroyer JD wrote:
> var/list/Numbers = list("1","2","3")
>

Um, correct me if I'm wrong, but that list right there called Numbers is holding text strings, not numbers.

By putting the quotes around the numbers, they're turned into text strings, correct?
Oct 8 2006, 12:16 pm
In response to SSJ Radditz
SSJ Radditz wrote:
Mecha Destroyer JD wrote:
> > var/list/Numbers = list("1","2","3")
> >

Um, correct me if I'm wrong, but that list right there called Numbers is holding text strings, not numbers.

By putting the quotes around the numbers, they're turned into text strings, correct?

Hmm, I see what you're talking about..After looking at the reference, I see that the list full of numbers only have commas..That may be the case..
Oct 8 2006, 12:21 pm
In response to Mecha Destroyer JD
thanks i picked up alot by reading that. i've been reading over it myself, and getting a clear understanding of it is necessary for the next part of my coding
Oct 8 2006, 12:24 pm
In response to Mecha Destroyer JD
Well, I just tested it. And you don't have to put quotes around all info thats stored in a list. Run this.

mob
    verb
        Test()
            var/list/L = list()
            var/Number
            Number = input("Input a number to add to the list")as num
            while(Number <> 0)
                L.Add(Number)
                Number = input("Input a number to add to the list")as num
            for(var/Data in L)
                if(isnum(Data))
                    usr << Data


You'll see that the data is checked to be a number, then outputed if it is.
Oct 8 2006, 12:24 pm
In response to Dsb520
Dsb520 wrote:
thanks i picked up alot by reading that. i've been reading over it myself, and getting a clear understanding of it is necessary for the next part of my coding

No prob. Its hard at first, but then much easier when you get the basics.
Oct 8 2006, 12:26 pm
In response to Mecha Destroyer JD
okay.
what im planning is having magic spells for my characters.

you will gain a new spell *which you will then have 'learned' and it will be added to the list of learned spells which you can access any time.
in addition i want the player to have a list of UP to 15 spells. *the # increases according to rank* that are VERBS , which they can just click on.

they can still access the other learned spells thru other means but the learned ones will be quick use verbs which would be much quicker to use
Oct 8 2006, 12:26 pm
In response to SSJ Radditz
Yeah I know that you don't have to put quotes around it when adding to a list, but apparently something has to separate the items in it whether it be "" and/or commas.
Oct 8 2006, 12:29 pm
In response to Mecha Destroyer JD
You MUST use commas to seperate data in a list. There is nothing else you can use.
Oct 8 2006, 12:30 pm
In response to SSJ Radditz
Thats what I said/meant. A combination of quotations and commas or commas by themselves..0_0
Oct 8 2006, 12:33 pm
In response to Dsb520
Not sure EXACTLY what you're saying, but let me see if this is what you mean.

In my spare time, I'm working on a small RPG. I've currently working on the spell system. It works this way.

- Spells are learned based on level/requirements (class, int, etc)
- You have THREE active spell slots. This means you can only use three spells at a time. You have a statpanel listing ALL of your spells, and you can set the three active spells through that panel.
- Then you just have 3 different keyboard macros. One for each active spell.

I'm assuming this is SOMETHING like what you're wanting. I know it isn't exactly the same, but I believe it's pretty much the same idea.
Oct 8 2006, 12:34 pm
In response to Mecha Destroyer JD
Quotes if you're inputting text. Commas to seperate data...that's it. O.o

Haha I think we're confusing each other. =p
Oct 8 2006, 12:36 pm
In response to SSJ Radditz
Yep..x.x Usage depends on the situation..
Oct 8 2006, 1:04 pm
In response to SSJ Radditz
yea thats along the same lines. only thing different is depending on my chracters rank, they will have more slots to use.
and it wont be macros just verbs
Oct 9 2006, 7:17 pm
In response to Mecha Destroyer JD
Mecha Destroyer JD wrote:
Thats what I said/meant. A combination of quotations and commas or commas by themselves..

Please don't give advice if you're not sure yourself.
SSJ Radditz is correct; quotation marks indicate text strings, they have nothing at all to do with the way lists are structured. It's all about the commas!