Here is the link: Note its not completely finished I really should start writing some more lessons

http://ourl.ca/4279/79303

As for the fluid dynamics, of course it isn't completely far away from realistic physics, it isn't exactly very realistic either.  Pressure is ignored completely, as is illustrated in the diagram below.  In real world physics, the water line would be even, but the physics I implemented would leave the water at levels similar to the diagram.  Then again, while it may not be realistic when it comes into the actual equations and things like viscosity and pressure, it does present a very nice and quick method for on calc simulation There might even be some other sets of rules that are equally simple and result in better fluid movement.

On the subject of physics, I just had an idea for physics for sand in your game.  Here would be the rules, with lower rule numbers being higher priority:
1) If block below is empty, move down
2) If block below is fluid, swap fluid and this block
3) If block to the right/left and down is empty, move to that position

Maybe instead of a fluid dynamics, I could write about the power of pixel based physics for simulating large physical elements

wow that sounds complicated I hope you can get it all working

Ahhh thats an interesting take on RLE, I was assuming you were doing it pixel by pixel, not byte by byte.  I wonder what the size difference is between the two o.O There is always Huffman coding, although I have a feeling it would be not very well suited for video.  Hmmm there is some sort of expansion on RLE but I don't remember what it's called, something with a 7.  By its nature, it is a RLE but it is also more...

I'm glad you found it freaky I'm in the middle of working on some enemies, and that should add a whole new dimension to the game

Weird, I just downloaded it myself and got no problem Hmmmm..... i'll have to see what i can do

Right, by dithering you are adding more complexity, and so RLE will not work as well.  Btw how are you doing your RLE?

I kinda did, but the physics for this sand wouldn't be covered in it, as it is just pseudo-physics, a simple algorithm that really has no basis in real fluid dynamics