Hi,

I have a function that draw a point with one random line starting from the same point

1. // add point with line
2. void add(float x, float y) {
3.   int o = random(14 * 2), u = random(Math.PI * 2);
4.   stroke(255, 255, 255, 90);
5.   point(x,y);
6.   stroke(140, 200, 255, 10);
7.   line(x, y, x + o * Math.cos(u), y + o * Math.sin(u));
8. }

This function can be called infinite times...

1. add(10.20, 300.10);
2. add(100.00, 10.34);
3. add(95.50, 31.21);
4. add(320.10, 60.97);
5. add(10.20, 300.10);
6. ...

I want to remove - by fading out if it's possible - each point/line older than 2 minutes but I can't' find the correct way... I'm absolutely new to Processing language

Thanks in advance

cri