Using xLib, I wrote a pretty straightforward program that simulates an object floating in water. Not only does this object have bouyancy, but it also simulates the effect of surface tension.

In addition, I adapted my buoyancy code to create interesting permeable barriers that allow objects in, but quickly "bounce" them out. Such an effect could be easily applied to games in order to add variety to the composition of landscapes.

Very nicely done, rthprog! It's impressive either way, but did you use the actual equations for buoyancy and surface tension, or did you derive a "reasonable" approximation based on observation and trial and error?

I imagine he wrote it himself, citing a <a href="http://twitter.com/rthprog/status/17050594984">twitter update</a>.

Thanks The latter; it's all done through logic statements, albeit fairly lengthy ones.

Any interest in having the SourceCoder bot post up some code so that we can critique and optimize with you?

Cool! It reminds me of Builderboy's Zed Physics Engine. He did something similar with buoyancy and supported other neat stuff too. Good job, I'm surprised you were able to pull it off with xLib.

Good call, and nifty link there, I'll have to look at that Zedd engine a little more closely.

Looking great there, rthprog. Awesome program!

I can think of quite a few different ways this could be applied to games

Definitely! Actually, I could see a couple of games being created almost directly from this demo without much modification. How about a game where things fly right over the water, right under the water, and fall into the water, and you have to avoid them all?

Of course!

Variables:
H= Horizontal Velocity
V= Vertical Velocity
S= Position along the x-axis
T= Position along the y-axis
K= keystroke

I often use S and T instead of X and Y because X and Y have a tendency to be overwritten.


Code:


Exactly; it could be done very easily. The only real issue would be to keep the game going at a speed adequate for TI83+s