RandomWalkerWithParticleSystem

class Particle {

​

  // Variables for location of particles

  float x, y;

​

  // constructor

  Particle(float x, float y) {

    this.x = x;

    this.y = y;

  }

​

  // Functions of particles

  void run() {

    walk();       // Move particles

    draw();       // Display particles

  }

​

  // move particles

  void walk() {

    this.x += random(-0.947, 1);

    this.y += random(-0.87, 1);

​

    // change location if particles reach edge

    if (this.x < 0) {

      this.x = width;

    }

    if (this.y < 0) {

      this.y = height;

    }

    if (this.x > width) {

      this.x = 0;

    }

    if (this.y > height) {

      this.y = 0;

    }

  }

​

  // display particles

  void draw() {

    noStroke();

    fill(255);

    ellipse(x, y, 1, 1);

  }

}

​

​