Weird ... it shows up in your post, but not mine Not for me, anyway. Doubly weird because I can see my Kefka. Oh well. EDIT: I just realized that smiley has a different url

Matthew's #4!?!
O__________-_-_-_-_-_-_-__________O

heh. just use my link, I think I have enough bandwidth. Like I care.

I'm getting close to 4000 posts. heh.

edit: Dude ben! Not bad, though, after a few seconds theres no more moving stars.. Thats a fairly lame screen saver http://strangesoft.net/Evil.gif

I say screen saver cause somehow the keys do nothing, and well... I see no ship.

edit2:

MUAHAHAHAHAHA!!!!!

edit3: OOOOHhhhhh.. the mouse.. heh. ooops.

I much prefer a keyboard interface! Or maybe a joystick. (or my Sidewinder... )

maybe rename the immage? so its not a capital E? I don't know.

w0w. not a clue. hah. thats weird. could it be Matthews go.php? or the anonymizer? Or just more lame geocities crap?

edit: #includes didn't count for this contest, why should it for another? I dont think #includes should be counted. #defines yes. But #includes no.

heh. About your note about the sfx... You should keep it real time, and mix the shots in real time so they echo and do all sorts of cool stuff! Sure youd need a Quad Hammer system... But It'd at least sound cool

nooooo... a nice echo, 3d sound that will work with my 4.1 setup! now that would be cool. Especially with this new game! you turn around, and your laser ball sounds like its coming from behind you!!!! Shweeeeet. You know, but dynamic like, so as you turn its "panned" between my 2 stereo channels!!! MAUAUAUAUHAHAHAhackcooughhhwheezzzseeee... hm.

VERY NICE BP!!! I especially like the 'milky way' strip of higher star density. Nice. I was waithing for some one to use the allegro 3d math routines (did everyone forget about the polygon drawing routines too??)

ben.. I need a favor... I want to know how to mix samples correctly, and other DSP stuff.. I was playing a little while ago with getting my audio player to do some funky fx, but I never did get it right... could you explain some of this stuff to me?

Tom, that's a big, big subject... I can tell you how to mix, change volume, and resample (cheaply), but anything more complicated would require more than one post on allegro.cc. This could help immensely.

To mix (assuming 16-bit signed values):

for (i = 0; i < length; i++)
    dest<i> = MID(-0x8000, src1<i> + src2<i>, 0x7FFF); /* Ask Bob about more efficient ways to clip */

To convert to/from unsigned, which Allegro wants:

for (i = 0; i < length; i++)
    dest<i> ^= 0x8000;

To change volume:

for (i = 0; i < length; i++)
    dest<i> = src<i> * volume_factor;

Note that if you halve the volume, you actually quarter the energy present in the wave.

To resample:

float j = 0;
for (i = 0; i < dest_length; i++) {
    dest<i> = src[(int)j];
    j += delta; /* 1.0 identity; 0.5 halve speed / one octave down; 2.0 double speed / one octave up */
}

That'll sound pretty rough, and you can improve it with linear interpolation and stuff. Hope that helps a bit

Hein: full marks for originality. It's quite hard [EDIT] Forgot to say, your code is a hell of a lot more readable than mine

hmmm... so, what if I want to have the intensity (volume whatever) of one to be more than the other? Kinda like one is fading out or in?

edit:
Oh, and since Its for my 1337 audio player lib, the input plugin gets to set the output plugin's format.. so depending on the file (or input plugin... only the ogg and wav input plugins currently set a mode different than 44.1khtz 16bit signed stereo), we can have a 44.1 khtz 16bit unsigned Stereo pcm stream, or a 8 khtz 8bit signed mono pcm stream.

um... you've seen my math skills. Look at my awesome collision detection above.

edit2: uugghhh... math notation hurts my head... (all those phunky symbols at the dsp link...)

Headers don't count

Ja. Look at my originality! Its pong, just with more bugs!

eh. this was 20 lines of code. the contents of the header should be included in the 20 lines. And anyways who posted an entry with that? I could swear I have all of them...