mousePressed not updating in while loop

Processing Beginners
3

I’m equally confused by your confusion.

The code snippet is not meant to be complete or even functional, its merely an example to show (what I think is) anomalous behavior. Instead of dumping my entire code here, I’ve done my homework and posted just a summary of my problem. I couldn’t find any documentation about how the mousePressed variable actually updates, which is why i’m posting here.

Now I understand there are probably twenty easier ways to register a mouse click, but for now I’m trying to understand why this particular way doesn’t work.

Hope this clears things up.

  1. You might have guessed, but the delay(10000) is throwaway. It only exists to make execution success (print “OK”) easier for me to observe.
  2. Best coding practices aside, there is no reason why I can’t break a while loop with break. In fact, the following doesn’t work as well:
void draw(){
  while (mousePressed == false) {
    println("Still False");
    delay(100);
  }
  println("Now True");
  delay(10000);
}

Is there documentation somewhere I can refer to for this?

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