I am encountering some weirdness with arrays. My ultimate goal is to add an item onto the end of an existing array. I have approached this in several ways and hit several obstacles.

Here's one way I thought of:

int[] Function ExtendArray(int[] array)    int counter = 0    int[] newArray = new int[array.length + 1]    while (counter < array.length)        newArray[counter] = array[counter]    endWhile    return newArrayEndFunction

This gives me the following error:

mismatched input 'array' expecting INTEGER

at the 3rd line. In other words, it doesn't like the fact that I am calling array.length inside the new array's length specification.

WHY!? The Creation Kit tutorial on arrays (which I don't have permission to link to) even shows creating a new array with its length defined as

i * x

. I'm doing the same thing!

On a side note, why don't my code blocks have any syntax highlighting, like the how to ask scripting questions stickied post (which I don't have permission to link to)?

Edit: Now I see that the syntax highlighting doesn't occur in the post preview, while it does once the post is actually posted.

The wiki page states that you can't use variables/expressions in declaring arrays. http://www.creationkit.com/Arrays_(Papyrus)#Declaring_Arrays

For example:

int iLength = 5int[] iNewArray = new int[iLength]

does not work, but

int iLength = 5int[] iNewArrayif iLength == 5    iNewArray = new int[5]endIf

should work.

I didn't do the tutorial, but that directly contradicts the page above.

Thanks. That explains it. It is valid to use variables when getting array values, but not when specifying the length of a new array.

So, essentially what I have to do is this:

int[] Function ExtendArray(int[] array)    int counter = 0    int[] newArray    if (array.length == 1)        newArray = new int[2]    elseif (array.length == 2)        newArray = new int[3]    elseif (array.length == 3)        newArray = new int[4]    elseif (array.length == 4)        newArray = new int[5]    endif    while (counter < array.length)        newArray[counter] = array[counter]    endWhile    return newArrayEndFunction

Wow. That's INCREDIBLY stupid! Is there a better way to achieve this in Papyrus, or is Papyrus just stupid?

The i * x thing is from exactly the same page you linked to. Just scroll down to the Getting/Setting Elements section. The difference is that they are specifying the index of an existing item, they are not specifying the length of a new array. I just assumed if you could do one then you could do the other, like any sane language.

Yeah it is kind of dumb and looks tedious. Another approach could be to use states. Not sure which is more efficient, going through a bunch of if statements or this method.

(untested)

int[] Function ExtendArray(int aiLength) ;aiLength is the length of the original array    string sLength = aiLength as string    GoToState("ArrayState"+aiLength)    int[] iNewArray = GenerateArray() ;generate array    ;do stuff to refill old valuesendFunctionint[] Function GenerateArray() ;needs to exist in empty stateendFunctionState ArrayState1    int[] Function GenerateArray()        GoToState("")        return new int[2] ;add one    endFunctionendState;state array2,3,4,5,etc

I'd rather just do something like this:

int[] aint ifunction OnInit() a = new int[N] i = 0endFunctionfunction Append(int v)  if (i < N)    a[i] = v    i += 1  endIfendFunction

N is a constant, replace with whatever your worst-case would be. N has to be <= 128 in case you didn't know.