Las luciérnagas

class Noisy { 

  PVector vec[];

  float noiseValueX = 0.02;

  float noiseValueY = 0.02;

  int n = 400;

  float speed =0.02;

​

  Noisy() {

    vec = new PVector[n];

​

    for (int i =0; i < n; i++) {

      vec[i]  = new PVector(random(width), random(height));

    }

  }

​

  void draw(int px, int py) {

    float posx = 0;

    float posy = 0;

    for (int i =0; i < n; i++) {

      posx = noise(noiseValueX,  speed);//*rand[i].x;

      posy = noise(noiseValueY,  speed);//*rand[i].y;

      vec[i].x += posx*tan(speed)*10;

      vec[i].y += posy*cos(speed)*10;

      noStroke();

      if(i > n/1.3)

        fill(140, 140, 40, 30);

      else

        fill(0, 100, 50, 50);

      ellipse(vec[i].x, vec[i].y, 7, 7);

​

      if(vec[i].x > width ||  vec[i].x < 0)

        vec[i].x  = width/2;

     if(vec[i].y > height ||  vec[i].y < 0)

        vec[i].y  = height/2; 

      update();

    }

  }

​

  void update() {

    noiseValueX += 0.01;

    noiseValueY += 0.02;

​

    speed +=0.02;

  }

}

​

​