What is wrong with this array

Hi all.

array.width = 10

array.height = 10

I created an array with

-for x from 0 to array width

--for y from 0 to array height

*create object sprite at(loopIndex("x")*17,loopIndex("y")*17)

*array.set value at(loopIndex("x"),loopIndex("y")) to random(3)

*sprite.set animation frame to array.value

<img src="https://www.dropbox.com/s/mqlv5zmtzcub2wm/first.jpg" border="0" />

so far so good It creates randomly framed 11 to 11 sprites.

weirdness starts from now on

-button on click

--for each sprite

*delete.sprite

--array. for each xy element

*create object sprite at((TwoDimensionalArray.CurX)*17,(TwoDimensionalArray.CurY)*17)

<img src="https://www.dropbox.com/s/o81ezt8qq4bsx37/duo.jpg" border="0" />

It creates 10 to 10 sprites ?!?

Why not 11 ?

array.width = 10

array.height = 10

That means your array is 10 elements wide and 10 elements high.

Indexing of arrays starts from 0, so your array indexing should be from 0 .. array.width-1 (9, which is the index of last array value)

Thank you for your quick reply.

So actually at first, latest column(11th) and latest row(11th) didn't get any values beceause there is not 11th elements at array.

So if I do like as you said, width-1 or if I start for from 1 to array.width does the same job right ?

Exactly :)

Your question:

From 0 to width-1 (indexes from 0 to 9) is not same as from 1 to width (indexes from 1 to 10)

Both index 10 values, but as the array only has values in indexes 0-9, the later one would try to index array values that do not exist. This is not recommended, ever :)

Wow thank you for your great explanations.

Now I get it.

Finally I just want to ask one more thing. Already everything wrotes at comments at this example.

dl.dropbox.com/u/56268958/test-procedural2.capx

Thank you very much.

I'm sorry about first .capx I get it it was a bit silly.

I just realized that array.front doesn't mean current(X)+1. It means first x point.

So I changed my related code part with, Array.At(Array.CurX+1,Array.CurY)

Now the problem is just above that part. It's,

if currentX+1 's value is 0 or 1 or 2 ( I wrote this beceause if it's last column there won't be a (x+1,y)point. So there won't be a value. So I wanted to leave last column as it is.) But It doesn't do anything.

The funny and weird part is that code was

if currentX+1'value => than 0 and

if currentX+1'value =< than 2 then do smth.

When do code was like it was doing smth(not as I expected)

Lol I'm confused that both codes should be same right ?

Here is my latest capx file. Thank you for any help.

dl.dropbox.com/u/56268958/test-procedural2.capx