# New to P5 - basic object question
**URL:** https://discourse.processing.org/t/new-to-p5-basic-object-question/9207
**Category:** Coding Questions
**Created:** [March 11, 2019, 10:29pm UTC](https://discourse.processing.org/t/new-to-p5-basic-object-question/9207 "2019-03-11T22:29:04Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@cryptogee](https://discourse.processing.org/u/cryptogee)
#### Post date: [March 11, 2019, 10:29pm UTC](https://discourse.processing.org/t/new-to-p5-basic-object-question/9207/1 "2019-03-11T22:29:04Z")
Hi, I’ve just discovered P5 today, I have some coding experience, however it is mainly theoretical/following along. Now I’m trying to make it on my own!
Okay, so I have drawn a basic background with a couple of ellipses in it. I am trying to get it so that every time I press my mouse over one of the ellipses, I leave behind a small ‘pebble’.
I have got it so that my mouse changes colour, however it does not leave an object behind when I click. My code is below, I’m pretty sure I shouldn’t be using if/else statements, so please point me in the right direction.
Thanks
```auto
function setup() {
let canvas = createCanvas(600, 400);
canvas.position(300, 50);
}
function draw() {
background(0, 128, 0);
fill (128, 128, 128);
ellipse(width/2, height/4, 100, 100);
ellipse(width/7, height/4, 100, 100);
if (mouseIsPressed) {
fill(0);
} else {
fill(255);
}
ellipse(mouseX, mouseY, 25, 25);
}
```
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 11, 2019, 10:45pm UTC](https://discourse.processing.org/t/new-to-p5-basic-object-question/9207/2 "2019-03-11T22:45:12Z")
you can delete `background`, then the points will stay permanently
you can use something like
```auto
if(dist(mouseX,mouseY, width/2, height/4) < 45) {
ellipse(mouseX, mouseY, 25, 25);
}
```
to judge whether mouse was clicked in the right place. You only want to draw the ellipse in this case!
---
### Author:  [@GoToLoop](https://discourse.processing.org/u/GoToLoop)
#### Post date: [March 12, 2019, 1:03am UTC](https://discourse.processing.org/t/new-to-p5-basic-object-question/9207/3 "2019-03-12T01:03:02Z")
[CrHallberg.com/CollisionDetection/Website/point-circle.html](http://CrHallberg.com/CollisionDetection/Website/point-circle.html)
---
### Author:  [@cryptogee](https://discourse.processing.org/u/cryptogee)
#### Post date: [March 12, 2019, 5:11pm UTC](https://discourse.processing.org/t/new-to-p5-basic-object-question/9207/4 "2019-03-12T17:11:55Z")
Many, many, many thanks!