Multiple variables in one for loop?

Processing Beginners
1

Is it possible to use two variables in a single for loop? Here’s my non-working code:

void sqrNew() {
      for (float x = random(295,300),float y = random(355,360); x < 700 && y < 700; x = x + 55, y = y + 55) {
        noStroke();
        fill(random(255),random(255),random(255));
        rect(x,y,random(40,53),random(40,53));
        println(x + " " + y);
      }
}

I keep getting syntax errors. Is there a way to make this work, or are multiple variables in a single for loop not possible?

Thanks!

1 Like
2

@sleepycode remove the second float declaration in the for loop

void sqrNew() {
      for (float x = random(295,300), y = random(355,360); x < 700 && y < 700; x = x + 55, y = y + 55) {
        noStroke();
        fill(random(255),random(255),random(255));
        rect(x,y,random(40,53),random(40,53));
        println(x + " " + y);
      }
}
4 Likes
3

Hi @sleepycode can you mark it as solved if it helped, thanks

4

Oops yes, sorry. Just marked as solved.

2 Likes
5

That’s still bad code in my opinion.

For example the for loop will probably never end.

You can’t tell, how often the for loop runs.

Much better would be an i with i++, for example with an upper boundary that’s random

And x and y in separate lines

2 Likes
6

I agree, they wanted to know the issue they were having with the for loop, i just pointed it out

2 Likes
7

I agree with bad code but this imho isn’t true

as in this case x and y steadily increasing, so it will be definitely hitting the end conditions… :slight_smile:

Cheers
— mnse

2 Likes
8

Oh, that’s right. Thanks!