Looping through an array file

[DaveC]

hey everyone.. hopefully simple question.

So I want to load the cells of an array (X dimension 24, Y dimension 11) into global values. Preferably in ONE event.
so it would look like -
set Global Value A to X0,Y0 (of array)
set Global Value B to X1,Y0 (of array)
set Global Value C to X2,Y0 (of array)
etc.

Now I can easily loop across the X dimension of the array using the loop index to determine which x cell to read/write from, so that the first 25 values are loaded..

but how do I make the array jump to X0, Y1 and continue setting the global values in the same loop? atm I have to load each x dimension one after the other.. I'm sure there's a smarter way to do this? thanks!

[Skyhunter]

Divide the Y by X dimension.

set Global Value to X(loopindex), Y(loopindex /25)

[DaveC]

thanks for your reply.. but this doesn't work exactly how I want..

This does add 1 to the Y index on the array but it doesn't set the X back to 0, so it goes X26, Y1 etc.

[Skyhunter]

Ah yes i forgot, also for the X index do mod

set Global Value to X(loopindex) mod 25 , Y(loopindex /25)

[DaveC]

I think I got it thanks!

Does this look right to you? it seems to save/load all the values in the correct place..

for some reason 0X,0Y is never written to.. but I don't think it matters. I think it may be because global values start at 1 not 0...

[Skyhunter]

Yep, looks good.

[Konidias]

I think I got it thanks!

Does this look right to you? it seems to save/load all the values in the correct place..

for some reason 0X,0Y is never written to.. but I don't think it matters. I think it may be because global values start at 1 not 0...

You're going to need to do "loopindex+1" because fastloop indexes start at 0, but you are right that global values start at 1... So it definitely matters because you're saving data at 0,0 in the array but you're loading the global variables starting at index 1... meaning you are never loading that 0,0 position even though it's saved. Also the way you're setting the array value to load is odd (and won't work since you're setting the global value before you're defining the array position)

You want to do something like:

Set Global Value(LoopIndex("load")) to ValueAtXY( "Array", LoopIndex("load") mod 25, LoopIndex("load")/25)

[Konidias]

Also you're running your fastloops more than necessary... You just take your x dimension and multiply it by your y dimension... so 264 times instead of 300 that you're doing in your MFA. Right now it's fastlooping 36 more times (twice) for no reason.

[DaveC]

I'm a bit confused..

from 0 to 24 is 25 across
from 0 to 11 is 12 down

so 25x12 = 300?

when I look at the array data saved there is never anything save to 0,0 - but global value 1 is always loaded to 0,1....... eep.

[Konidias]

Ah I was doing 24x11... Nevermind that then. :P

When loading you should do "set global variable (loopindex+1) because the loop index is going to be 0... Since you can't set global variable 0 (it doesn't exist) you're losing that loop.