Le Scaphandrier

[tykel]

What tykel's saying is that making the sprite bob by drawing it at a different position at runtime or at every other frame would be too expensive in terms of resources.

It's two calculations extra each frame; something like this isn't that expensive. Actually modifying the image is.

Yes, that's right. I misunderstood, I thought Sploder meant modifying the head's position in the sprite every frame. Sorry
That said, what you save in graphics you make up for in code to a certain extent. Given the saving isn't that big, I think it's simpler to just go with multiple frames for now.