Hat system problems
 

Ok, so im new to gs1 and I dont knwo how to use arrays.....
Well I think hat systems use arrays (right?). Well, Once I set an array how do I add another var to it? And how do I read parts of the array (like when showing what hats you have).

You could do:
thiso.hatzlist = { 0, 1, 2, 3}; -> as standard hats
Then when you buy a hat, like: hat number 50.. you make the buy script do: client.hat_50 += 1; so for example client.hat_50 is 2 when you bought 2 times hat 50.

After that, to add the hat to the array you do:
for ( i: getstringkeys( "client.hat_"))
thiso.hatzlist.add( client.( "hat_" @ i));

Then thiso.hatzlist would be 0,1,2,3,50

To read a part of the array, do: thiso.hatzlist[ index], the index of an array starts with 0, so thiso.hatzlist[ 4] would say: 50 in this case.. :)

getstringkeys? Never heard of it.

Anyway, you need to note this is GS2. You may not be familiar with a lot of what he showed you.

I use this.hat++ and this.hat -- along with a setting function so that when set, hat#v(this.hat).png is a hat (in gs1)

Hat systems are usually string lists. I've seen in another thread of yours that you are not using the new engine, so you should be using the basic stringlist functions:
addstring, removestring, insertstring.