tendrils

Particle[] p = new Particle[400];

void setup() {

  size(800, 800);

  noStroke();

  background(255);

}

​

void draw() {

  // fill(255,255,255,5);

  // rect(0,0,width,height);

  // background(255);

  if (p[0]!=null) {

​

    for (int i=0;i<p.length;i++) {

      p[i].move();

    }

  }

}

​

void mousePressed() {

  for (int i=0;i<p.length;i++) {

​

​

    p[i]=new Particle(mouseX, mouseY);

  }

}

​

​

class Particle {

  color c;

  float x=0;

  float y=0;

  float a=0;

  float aInc=0;

  float s=1;

​

  float driftAngle = 0;

​

  int totalTicks = 100;

  int tick=0;

​

  public Particle(float x, float y) {

    c = color(random(255), random(255), random(255), 40);

    float grey = random(255);

    c = color(grey, grey, grey, 40);

    this.x=x;

    this.y=y;

    aInc= random(-4, 4);

​

    driftAngle = random( 360);

  }

​

  public void move() {

    if ( tick++ < totalTicks) {

​

​

      x += cos( radians( a ) ) * s;

      y += sin( radians( a+=aInc ) ) * s ;

​

      x += cos( radians( driftAngle ) ) * 2;

      y += sin( radians( driftAngle ) ) * 2;

​

      stroke(c);

      strokeWeight(map(tick, 0, totalTicks, 15, 0.1) );

      point(x, y);

    }

  }

}

​