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I need my game to delete the item selected on the listbox when the user presses a button.

I have tried something simalar to this:

Ã,  Ã, int number = list.SelectedIndex;
Ã,  Ã,  Ã,  Ã,  list.RemoveItem(number);

When I run the game it says invalid index

Does anybody have any suggestions?
Ã,  Ã,  Ã, 

Riddle me this,lets say I am making a game (I'm not right now but I am curious about how this would work)
and I have a function like this:

int red;
int blue;
int green;

function addsome (){
int ran random (2)
if (ran==0)red==1;
if (ran==1)red==2;
if (ran==2)red==3;
Ã,  }

I need to use this function many times but, often times I
need to do this with other ints.Ã,  :o
Is there any I could do this without having to write many functions and instead do something like this:

function addsome(int,red);
function addsome(int,blue);
function addsome(int,green);

Please explain to me how to do this
The first person to reply gets one million dollars
(just kidding)

ok i have a questions

is there any way i can let the player type any number and it be stored as an int(And can i use decimal)


i have an older version of ags (i got it in october) and i cannot upgrade

I am trying to make an avi movie display when my character walks in a room.
How do i do this?