Experiment - Particles - OpenProcessing

sketch154193
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Mover[] m1 = new Mover[100];
​
void setup(){
  size(640, 480);
  background(0);
  for (int i = 0; i < 100; i++)
  {
    m1[i] = new Mover(int(random(width)), int(random(height)), int(random(7)+1));
  }
}
​
void draw(){
  background(0);
  for (int i = 0; i < 100; i++)
  {
    m1[i].display();
  }
}
​
class Mover {
​
  int x;
  int y;
  int speed;
  int diameter = 13;
​
  Mover(int _x, int _y, int _speed) {
    x = _x;
    y = _y;
    speed = _speed;
  }
​
  void display() {
    if(x<0 || x>width){
      speed *= -1;
    }
    
    if(dist(x, y, mouseX, mouseY)<100)
    {
      diameter +=1;
    }
    else{
      diameter = 13;
    }
    
    x = x + speed;
    stroke(100, 50, 0);
    fill(random(50, 255), random(50, 255), random(50, 255));
    //fill(200, 100, 0);
    ellipse(x,y,diameter,diameter);
  }
​
}