Anyone know how to get multiple circles to fall from the top of the screen on a mouse/key press?

Andreamauro

I'm trying to create a showerhead effect where small blue circles fall from a static bigger "hose," but as a new coder, I am unsure as to how to get simple shapes to fall from the top of the screen on a mouse press. It would be ideal if it were possible to mouse press on a specific region of the screen for the circles to start falling. Any advice??

TfGuy44

Post your code.

Here's my code.

class Dot {
  float x, y, dx, dy;
  Dot(int i){
    y = -200;
  }
  void draw(){
    x+=dx;
    y+=dy;
    fill(128,128,255);
    noStroke();
    ellipse(x,y,10,10);
  }
  void reset(){
    x = width/2;
    y = -20;
    dx = random(-.4,.4);
    dy = random(2);
  }
}

ArrayList<Dot> dots = new ArrayList();

void setup(){
  size(200,600);
  for( int i = 0; i < 100; dots.add( new Dot(i++) ));
}

void draw(){
  background(0);
  for( Dot d : dots ){ d.draw(); }
}

void mousePressed(){
  for( Dot d : dots ){ d.reset(); }
}

koogs

Look at mousePressed() in the reference and the Simple Particle System example on the website

Andreamauro

thanks so much!