Re: [stella] JoustPong: maybe ditch "poorlords" wall

Subject: Re: [stella] JoustPong: maybe ditch "poorlords" wall
From: "Thomas Jentzsch" <tjentzsch@xxxxxx>
Date: Mon, 12 Jan 2004 17:35:20 +0100
Kirk Israel wrote:
> Er, method for what?

Ball and flap movement, I suppose.


> I've started to do some frame-by-frame analysis of Joust.  
> At first I thought they were using some speed limitators, but
> maybe it just is a nicely divorced-from-pixels speed thingy

You can get a speed limitation by adding some speed based friction 
to the movement.

E.g. for each frame do:
  y-speed (old)
- gravity (constant)
+ flapping (if done)
- y-speed/16 (16 is just an example)
= y-speed (new)

You can find this kind of code in my Cave1K source. Without friction the 
helicopter become almust uncontrolable. There is IFDEF, so you can easily
test the effect.   

Have?fun!
Thomas
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