# Help needed please in code
**URL:** https://discourse.processing.org/t/help-needed-please-in-code/27241
**Category:** Coding Questions
**Created:** [January 20, 2021, 5:10pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241 "2021-01-20T17:10:35Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)
#### Post date: [January 20, 2021, 5:10pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/1 "2021-01-20T17:10:36Z")
Within setup and main. I am creating a pg graphics at x,y resolution, placing a value in centre. Then randomly choosing a point. If the point = centre then x,y found.
Wth am I doing wrong??
PGraphics pg;
float col=10;
int count=0;
int xsize=1500;
int ysize=500;
int tempx;
int tempy;
int temppixel;
float pixheight;
int pixel;
void setup(){
size(1500, 500);
noSmooth();
colorMode(RGB,255);
pg=createGraphics(xsize, ysize);
pg.noSmooth();
pg.beginDraw();
pg.background(0,0,0);
pg.loadPixels();
pg.fill(255);
pg.strokeCap(SQUARE);
frameRate(1);
```
int px=xsize/2;
int py=ysize/2;
pixel=(px+(py*xsize));
pg.pixels[pixel] = color(200,200,200);
positionchange();
```
}
void draw(){
pg.colorMode(RGB,255);
pg.beginDraw();
pg.updatePixels();
image(pg,0,0,1500,500);
}
void positionchange(){
tempx=int(random(1,xsize));
tempy=int(random(1,ysize));
temppixel=(tempx+(tempy\*xsize));
pixheight=red(pg.pixels[temppixel]);
println(temppixel);
if (pixheight==0); {
positionchange();
}
}
---
### Author:  [@CodeMasterX](https://discourse.processing.org/u/CodeMasterX)
#### Post date: [January 20, 2021, 5:17pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/2 "2021-01-20T17:17:17Z")
> [@IRIGIMA](#):
>
> if (pixheight==0); {
> positionchange();
> }
you loop it too much. Find another way to do it.
---
### Author:  [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)
#### Post date: [January 20, 2021, 5:22pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/3 "2021-01-20T17:22:56Z")
How though?? It’s sooooo simple but can’t think how ???
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### Author:  [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)
#### Post date: [January 20, 2021, 5:25pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/4 "2021-01-20T17:25:04Z")
But it has to be looped until the centre point is found
---
### Author:  [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)
#### Post date: [January 20, 2021, 5:32pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/5 "2021-01-20T17:32:30Z")
Code in other language:
position:
randomize
x=(int(rnd(xmax)))
y=(int(rnd(ymax)))
get pixel x,y color r2,g2,b2
if r2=0 then goto position
return
---
### Author:  [@CodeMasterX](https://discourse.processing.org/u/CodeMasterX)
#### Post date: [January 20, 2021, 5:34pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/6 "2021-01-20T17:34:15Z")
you need to add a way to find if the pixel has been checked yet.
What I am trying to signal in this image is that you go over the previously checked squares. In results in an infinite loop
---
### Author:  [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)
#### Post date: [January 20, 2021, 5:54pm UTC](https://discourse.processing.org/t/help-needed-please-in-code/27241/7 "2021-01-20T17:54:56Z")
Why is something so difficult so hard within Processing!! ??
Ok.
Using PG graphics.
Everything is black apart from middle point.
Go to a routine that randomly finds that point and re-iterates till it’s done.
Once done, display the point found (middle) on screen.