RotatingParticle.random constructor

RotatingParticle.random(Size area)

Implementation

factory RotatingParticle.random(Size area) {
  Vector2 velocity = randomVector(-2, 2);
  // change this for more strange effect
  final minRadius = min(area.width, area.height) * 0.1;
  // change this for more strange effect
  final minPosition = min(area.width, area.height) * 0.2;

  Vector2 position = Vector2(area.width / 2, area.height / 2) +
      Vector2(randomDouble(-minPosition, minPosition),
          randomDouble(-minPosition, minPosition));
  double radius = minRadius + Random().nextDouble() * minRadius;

  return RotatingParticle(
    area: area,
    center: Vector2(area.width / 2, area.height / 2),
    basePosition: position.clone(),
    position: position.clone(),
    velocity: velocity,
    radius: radius,
    baseRadius: radius,
    angle: 0,
    angleVelocity: 0,
    angleAcceleration: 0.05,
  );
}