Re: [stella] MultiSpriteDemo update (source+binary)

Subject: Re: [stella] MultiSpriteDemo update (source+binary)
From: Piero Cavina <p.cavina@xxxxxxxxxxxxx>
Date: Fri, 4 Apr 1997 12:28:12 +0200 (METDST)
At 12.11 03/04/97 -0800, Glenn Saunders wrote:

>Ah, much better.  Rock solid display on a real NTSC VCS.  It's a pretty
>hypnotizing demo the way the ball collisions are coded.

Please note that thanks to collision registers the 'bouncing' effect wasn't
really difficult to obtain. I didn't even have to compare player and
obstacles coordinates.

>I suppose the next logical step up from here is animated player shapes and

Not really, first I must find the way to add a missile.
Here's what I'm thinking for the game:

- the sprite replication feature will be added to the horizontally moving
obstacles-enemies, this way there will be much more of them. 

- player will control the big 'ball', which will become a spaceship, or a
tank, or whatever... :) 
I still don't know exactly how it will be controlled, but it must be
something easy to master. Some kind of acceleration/deceleration in its
movement would make things more interesting.
(BTW... I think that a good player's control is one of the most important
things in a game. For example, consider Activison's "Frostbite". I love how
the little guy behaves.)
Obviously, player must not hit the obstacles. I think that he should not die
immediately when hit, instead he could start bouncing losing energy...

- there will be a 'missile' (but it will be Stella's 'ball') bouncing
around, just like the big ball in the demo.
Player must chase it and collect a number of them.
When enough missiles have been collected, he will be able to fire them
against the enemies! Enemies may chase the player moving to free 'slots'
towards him.

Any help from list members in defining these concepts will be appreciated.

>The 2600 really does move objects so smoothly, it's like butter.  I doubt
>most people running this program on their emulator next to a real 2600
>would consider the animation as smooth as the real deal.

Atari 2600: Fast & Smooth & Fun... :)


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