NaN values after adding numbers to initialised array

Authoring Twine
1

Twine Version: 2.3.16
SugarCube 2.36.1

Hello
I am creating game in Twine and am using mostly twine assets - I’m not using Java scripts or something like that. If it can be done in twine code, I’m trying to do this.

My problem is, that I use many arrays.
I have initalised several arrays like that:

<<set $mcArkana = []>>
<<set $mcArkana[0] = 1>>
<<set $mcArkana[1] = 1>>
<<set $mcArkana[2] = 15>>
<<set $mcArkana[3] = 0>>
<<set $mcArkana[4] = 0>>
<<set $mcArkana[5] = 0>>
<<set $mcArkana[6] = 0>>
<<set $mcArkana[7] = 0>>
<<set $mcArkana[8] = $mcArkana[1] * 1000>>

Before that array was lake that (it did’n work either):

<<set $mcArkana = []>>
<<set $mcArkana[0] = 1>>
<<set $mcArkana[1] = 1>>
<<set $mcArkana[2] = 15>>
<<set $mcArkana[3] = 0>>
<<set $mcArkana[4] = []>>
<<set $mcArkana[4] = [0,0,0]>>
<<set $mcArkana[5] = 0>>
<<set $mcArkana[6] = $mcArkana[1] * 1000>>

I created “debug display” of that arrays in StoryCaption, so I have something like that:

1, 1, 15, 0, 0, 0, 0, 0, 1000

In 4th, 5th & 6th value (or in array under 4th value before) are date values (minutes, hours and days) I would like to change. So I add value:

<<set $mcArkana[4] += 10>> //adding 10 minutes to Arkana timer

or even:

<<set $mcArkana[4] = 10>>

Right after the addition debug displays:

1, 1, 15, 0, [number NaN], [number NaN], [number NaN], 0, 1000

I know, that this three variables were connected. I dropped this connection, but…

Tried everything.
If you want more info or even screenshoot, will provide.
Thanks in advance for help.

Kthaara

2

Hello!

I quickly tested the following:

<<set $mcArkana = []>>
<<set $mcArkana[0] = 1>>
<<set $mcArkana[1] = 1>>
<<set $mcArkana[2] = 15>>
<<set $mcArkana[3] = 0>>
<<set $mcArkana[4] = 0>>
<<set $mcArkana[5] = 0>>
<<set $mcArkana[6] = 0>>
<<set $mcArkana[7] = 0>>
<<set $mcArkana[8] = $mcArkana[1] * 1000>>

$mcArkana

<<set $mcArkana[4] += 10>>

$mcArkana

And got the following result:
image
Which means that the setting of those variable does work.

Is there maybe another code that affect this variable in your project? maybe an <<unset>> macro somewhere?

(If you are creating some code for keeping Time, may I suggest @Hituro 's Date System instead?)

3

You are setting some values to arrays, not numbers.

An array plus a number will give you NaN (not a number).

4

Ideally you should either be using the <array>.push() function to adding additional elements to an existing Array…

<<set $mcArkana = []>>
<<run $mcArkana.push(1)>>
<<run $mcArkana.push(1)>>
<<run $mcArkana.push(15)>>
<<run $mcArkana.push(0)>>
<<run $mcArkana.push(0)>>
<<run $mcArkana.push(0)>>
<<run $mcArkana.push(0)>>
<<run $mcArkana.push(0)>>
<<run $mcArkana.push($mcArkana[1] * 1000)>>

note: I used the <<run>> macro instead of <<set>> because I find it reads better when executing a JavaScript function, but as <<run>> is just an alias for <<set>> the two macros are interchangeable.

Or in the case of an Array with a set length, you should be using the Array(length) constructor to create an Array with the required number of element…

<<set $mcArkana = Array(9)>>
<<set $mcArkana[0] = 1>>
<<set $mcArkana[1] = 1>>
<<set $mcArkana[2] = 15>>
<<set $mcArkana[3] = 0>>
<<set $mcArkana[4] = 0>>
<<set $mcArkana[5] = 0>>
<<set $mcArkana[6] = 0>>
<<set $mcArkana[7] = 0>>
<<set $mcArkana[8] = $mcArkana[1] * 1000>>
5

Hey
Thank you for every answer!
I reviewed the code altogether and found a bug.
It was not related to the array itself but to one tiny function. In this function was a bug, crushed witch mighty <<if>> statement.

Thank you for your time.