class Fly {
  float xpos, ypos, xspeed, yspeed;
  int xdir = 1;
  int ydir = 1;
  int size = 70;
  int w = 70;
  int h = 30;

  Fly(float tempXpos, float tempYpos, float tempXspeed, float tempYspeed) {
    xpos = tempXpos;
    ypos = tempYpos;
    xspeed = tempXspeed; 
    yspeed = tempYspeed;
  }

  void display() {
    fill(random(0),random(255),random(255),50);

    ellipseMode(CENTER);
    ellipse(xpos,ypos, random(w), random(h)); //random w&h create flapping effect
  }

  void go() {
    xpos += random(xspeed*xdir); 
    ypos += random(yspeed*ydir);
    
    //Tells shapes to stay within screen boundaries
    if(xpos > width-size || xpos < 0 ) {
      xdir *= -1; 
    } 
    if (ypos > height-size || ypos < 0) {
      ydir *= -1;    
    }
  }
}

  Fly[] fly1;
int numFly1 = 800;
More[] more;
int numMore = 50;

//variables declared globally, not in draw
float xpos =30;
float ypos = 40;
float xspeed = 15.0;
float yspeed = 10.0;

void setup() {
  size(1024,768);
  noCursor();
  fly1 = new Fly[numFly1];
  for(int i = 0; i < numFly1; i++){
    fly1[i] = new Fly(xpos,ypos,xspeed, yspeed);
  }
  
  //belong in separate for loopss
  more = new More[numMore];
  for(int j=0; j< numMore; j++) {
    more[j] = new More(xpos,ypos,xspeed,yspeed); 
  }

}

void draw() {

  smooth();
  noStroke();
  background(0);
  for(int i = 0; i < numFly1; i++){
    fly1[i].display();
    fly1[i].go();
  }

  for(int j=0; j < numMore; j++) {
    more[j].display();
    more[j].go();
  }
}

  class More extends Fly {
  
  More(float xpos, float ypos, float xspeed, float yspeed) {
    super(xpos, ypos, xspeed, yspeed);
  }
 
  void display() {
    fill(random(255),random(255),random(0),100);
    
    ellipseMode(CENTER);
    ellipse(xpos,ypos, random(w-10), random(h-10));
  }

  void go() {
    xpos += (random(xdir*yspeed))*-10 ; 
    ypos += (random(ydir*xspeed))*-1 ;
    if(xpos > width-size || xpos < 0 ) {
      xdir *= -1; 
    } 
    if (ypos > height-size || ypos < 0) {
      ydir *= -1;    
    }
  } 
}