Or. You could use .setFrequency and change it that way.
-----Original Message-----
From: Phil Vlasak [mailto:[EMAIL PROTECTED]
Sent: Monday, October 30, 2006 7:39 AM
To: Gamers Discussion list
Subject: Re: [Audyssey] Accessible Asteroids (was Game
programmingeducationproject.)
Hi Nolan,
I found that my Super Dogs Bone Hunt had a similar problem when all the
bones made the same sound as your Asteroids do.
I came up with ten variations on the bell sound at different pitches and
rates and saved each as a sound file then had the game pick one at random
for each bone.
Then I determined the distance to each from you and turned off the sound of
those beyond a certain distance.
Hope this helps,
Phil
[EMAIL PROTECTED]
----- Original Message -----
From: "Nolan Darilek" <[EMAIL PROTECTED]>
To: "Gamers Discussion list" <gamers@audyssey.org>
Sent: Sunday, October 29, 2006 5:20 PM
Subject: [Audyssey] Accessible Asteroids (was Game programming
educationproject.)
>
> On Oct 29, 2006, at 3:35 PM, AudioGames.net wrote:
>
>> Programming an accessible Asteroids game is one thing, but I'm
>> wondering about the *design* of an accessible Asteroids game? Did you
>> already think about that or are you still considering another
>> 'classic' game instead? The reason I ask is because I'm extremely
>> interested in your project
>> *IF* you
>> decide to somehow document all design decisions that would make an
>> otherwise inaccessible video game accessible for the blind (assuming
>> that is what you mean with 'accessible' of course * ;)
>
>
> Barring any unforseen disasters, I'm very close to releasing
> soundclips of my accessible Asteroids-like shooter. I was working on
> it last year, but getting a job pulled me away, then I ran into some
> limitations that a 2-D trig-based engine couldn't resolve, so I went
> fully 3-D with semi-realistic physics. I don't want to get too
> technical, but here's basically how the design works:
>
> All objects emit sounds, and to aim at/navigate toward asteroids one
> need only follow their positional, dopplering whoosh. To shoot an
> asteroid, the player aims at the sound and the targeting system begins
> to ping, with different tonal qualities conveying different meanings.
> High C means that the target is ahead but not in range, an ascending
> tone indicates that the ship is closing, a descending tone indicates
> evasion, etc. So, to successfully shoot an asteroid, the player lines
> up with it and begins accelerating until the targeting system
> indicates that weapon range has been reached.
>
> There were a few considerations that complicated the design. At higher
> levels (or even at lower levels at "insane" difficulty :) there may be
> 30 or more targets in the playing field. As such, the asteroid
> whooshes tended to blend together into one long string of white noise.
> I resolved this partially by implementing what I called the "audio
> HUD." Objects attenuate over distance, but it was often difficult to
> pick the most significant targets (I.e. the closest) from the noise.
> The HUD highlights closer objects by increasing what OpenAL calls
> their "reference distance," the distance at which an object's volume
> is decreased by half, when they're within a configurable range. This
> made nearer objects become more noticeable, but it still posed a
> problem when there were many "near" objects. I resolved this further
> by implementing HUD modes, renaming the former mode "panoramic" and
> adding a second mode, "seek and destroy," which only highlights the
> closest object, regardless of range. The result was rather
> interesting--a wall of white noise that shifted and became audibly
> louder in the direction of the closest target. Sounds like it might
> not be much of an improvement, but I found myself able to orient and
> fire onto closer targets by simply paying attention to the shifting
> field and noting louder areas. And this effect was only an issue when
> the ship was in the center of a thick cluster of asteroids--not
> exactly a desirable position in which to find yourself. :) Itt'd
> lessen as I'd shoot my way clear, or as asteroids bounced/floated free
> of the cluster.
>
> Today I'm working on a collision alert system. Asteroids were zipping
> in and smashing me at extremely high speeds, and taking evasive action
> was proving to be incredibly difficult. My current system adds an
> extra sound to the oncoming target which informs the player of both
> the nature and direction of the threat. Seems to be working reasonably
> well, though I'm not entirely certain that it's as accurate as it
> could be.
>
> I need to add a few more cues into the sound index, purchase new music
> and figure out the best way to record gameplay on a mac (yes, it's
> cross-platform and OS X is the primary development platform :) but
> with any luck there'll be something up in the next week or two.
>
>
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