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.   


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