pub struct Rain<'a>{
  pub blobs: Vec<Blob>,
  ctx: &'a Context
}

impl Rain<'_>{
  fn new(ctx: &mut Context, maxCount: isize)->Rain{
    Rain {
      blobs: (1..maxCount).map(|_x| Blob::new()).collect::<Vec<Blob>>(),
      ctx
    }
  }

  fn draw(&mut self){
    for blob in &self.blobs {
      let circle = graphics::Mesh::new_circle(
        self.ctx,
        graphics::DrawMode::fill(),
        na::Point2::new(blob.position.x, blob.position.y),
        blob.radius,
        0.1,
        graphics::WHITE,
      );
      // graphics::draw(ctx, &circle, (na::Point2::new(pool.position.x, pool.position.y),))?;
    }
  }
}



error[E0308]: mismatched types
  --> src/rain.rs:43:9
   |
43 |         self.ctx,
   |         ^^^^^^^^ types differ in mutability
   |
   = note: expected type `&mut ggez::context::Context`
              found type `&ggez::context::Context