A "while" loop...deleting an item in that while loop count...**SOLVED**

[Knox]

Hi,

Im running into a problem mostly due to my newbie-ness: Ive got a while loop using the number of inventory items in a certain "myInventoryWindow" window. Inside this loop, I run a script that does stuff + and eventually decides (depending on various factors) if that item "i" should be deleted from myInventoryWindow.

The problem is, if I delete an item in that window from inside the while loop, how in the crap am I supposed to update "iMyItemCount" so that it diminishes its amount?

Im guessing I have to use a dynamic array?

Code: ags

//Pseudo code:

  iMyItemCount = myInventoryWindow.ItemCount;
  int i = 0;
  while (i < iMyItemCount) 
  {
        functionThatDeletesItemFromInvWindow(); //processes 1 item at a time, to see if it must be deleted
        i++;
  } 

[Khris]

Hmm, I'd say this should do:

Code: ags

  if (item was deleted) iMyItemCount--;
  else i++;

The while condition is checked every loop, that's the whole point of "while". So if you've just removed InvWindow.ItemAtIndex[i], simply decrease iMyItemCount by one and don't increase i since the deletion moves the next item to the current i and the end one down.

[Knox]

oh wow, I did not know we could do that! Geeze, I was afraid I'd have to use global vars, dynamic arrays, etc...shows how noob I am!

You just saved me a crapload of work man...

[Calin Leafshade]

the best way to do this is to make your functionThatDeletesItemFromInvWindow(i) function return true or false depending on whether or not an item was deleted. That's nice and neat