Processing: starting screen background error

I am trying to create a starting screen background for my first game in Processing and it keeps erroring with the following message:

>When not using the PDE, size() can only be used inside settings().
Remove the size() method from setup(), and add the following:
public void settings() {
  size(800, 800);
}
IllegalStateException: size() cannot be used here, see https://processing.org/reference/size_.html
Could not run the sketch (Target VM failed to initialize).
For more information, read revisions.txt and Help ? Troubleshooting.

I’ve tried to solve the problem by following the message and by searching around but I don’t manage to solve it.

this is the part for the background:

```
void setup() { 

bg = loadImage("rot.png");
size(800, 800);
strokeWeight( 10 );
frameRate( 30 );
background(bg);


```

If needed I’ll send the whole part but this is where I believe the problem exist

thanks in advance

Answer

The settings() method in processing has only been added in 3.0, and a lot of people just ignore it’s existence. It’s a great add, though, which permits stuff which the setup() method didn’t (such as defining the window size using variables, for example).

Just move your size() line in a new settings() method, exactly as the program says.

(Also, if you are animating the sketch, you should draw the background in the draw() loop.)

PImage bg;

void settings() {
  size(800, 800);
}

void setup() { 
  bg = loadImage("rot.png");
}

void draw() {
  background(bg);
}

Have fun!