# New to Processing, I need HELP!
**URL:** https://discourse.processing.org/t/new-to-processing-i-need-help/16116
**Category:** Coding Questions
**Created:** [December 4, 2019, 2:44pm UTC](https://discourse.processing.org/t/new-to-processing-i-need-help/16116 "2019-12-04T14:44:36Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ihatearrays](https://discourse.processing.org/u/ihatearrays)
#### Post date: [December 4, 2019, 2:44pm UTC](https://discourse.processing.org/t/new-to-processing-i-need-help/16116/1 "2019-12-04T14:44:36Z")
Hi, I’m new to Processing, I’m making a 3x3 grid game that makes users mousehover over to a target square that is one of the 9 squares. I’m trying to create a function called getNextSquare that picks a random number between 1 and 9 to be the target that that loops again if it picks the number(square) previously clicked by the user to pick a number (square) that wasn’t picked before.
Any help would be vastly appreciated. Here’s my code.
```auto
int nextSquare = 0;
void setup() {
size(400,400);
nextSquare = 0;
}
void getNextSquare() {
for (int nextSquare = 0; nextSquare < 10; nextSquare++) {
float r = random(1, 9);
println(r);
}
}
```
---
### Author:  [@quark](https://discourse.processing.org/u/quark)
#### Post date: [December 4, 2019, 3:30pm UTC](https://discourse.processing.org/t/new-to-processing-i-need-help/16116/2 "2019-12-04T15:30:30Z")
> [@ihatearrays](#):
>
> float r = random(1, 9);
> println®;
Since your squares are numbered 0-8 then try
```auto
int r = (int) random(0, 9);
println( r );
```
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [December 4, 2019, 3:38pm UTC](https://discourse.processing.org/t/new-to-processing-i-need-help/16116/3 "2019-12-04T15:38:21Z")
You definitvly need a draw function that displays the grid
And you need an array to store which cells have been clicked
getNextSquare should check against this array to choose only unclicked cells