Thursday, September 29, 2011

In Profundis Progress 9/29

Ah, been slow going for a couple of weeks I'm sorry to say.  I keep getting caught up by stupid bugs.  This time, it was an out-of-bounds error that turned out to be caused by some debug code I had put in and forgotten about.

In positive news, a change to the way the game decides which cells to calculate has increased the range it looks at while simultaneously bringing a framerate improvement.  The change was actually suggested by someone in the comments to Gamasutra article I wrote about cellular automation; specifically, not to calculate every cell around the focus, but just those in a checkerboard pattern around it.  Reverse polarity of the checkerboard every turn.  Calculating fewer cells means I can calculate a further range, but the result isn't a noticeable decrease in fluid flow speed because I was already ignoring cells after they flowed one space until the next frame anyway, so as to prevent moving objects from teleporting.  I think even now fluids might be flowing a bit too quickly, so I might ease up on spending so many cycles on calculating.  Having a better frame rate means I can put in more gameplay features and/or graphic effects, so it's a very good thing.

1 comment:

  1. hey john. i appear to have arrived a little late at the discovery of this creation. i have to say In Profundis looks every bit like the game i've been dreaming of forever! Less focus on bad guys, more on raw exploration against the elements. How can i obtain a copy to join in to this beast. I have been into gaming since late 70's and from the graphics i've seen you've managed to capture an essence of the last 30 odd years.