[fowlplay4]

Is this the effect you're looking for..?

PHP Code:

//#CLIENTSIDE

function onCreated() {
  with (findimg(200)) {
    image = "block.png";
    x = player.x;
    y = player.y;
    this.origx = x;
    this.origy = y;
  } 
  setTimer(0.05);
}

function onTimeout() {
  onAdjustZoom();
  setTimer(0.05);
}

function onAdjustZoom() {
  with (findimg(200)) {
    zoom = 1 + cos(thiso.angle) * 0.5;
    y = this.origy - (getimgheight(image) / (layer >= 4 ? 2 : 32)) * zoom;
  }
  this.angle += pi / 32;
} 


I just used the cos to zoom the image in and out to test it.