Because of copyright issues with sounds, Spy vs BoB doesn't come with
any of the sounds used.  here's how to use your own:


audio.c includes 5 sounds as headers.  these can be created by soundtoh.

here's what i use.  you can choose whatever you want.

crash	- smashing glass
ledge	- Bill & Ted saying "Excellent!"
vator	- water drop
gift	- the Roadrunner's "Meep Meep!"
level	- kookbaura's call

there's also the background sound file, which is played all through
the game.  i use a large chunk of James Bond theme music.  change
the variable bg_filename to be whatever you want to use.


Rationale: headers vs filenames

the game uses both code and file-based sounds.  the reasons behind
them aren't terribly clear, but the main reason is that i prefer to use
code whenever possible, because it doesn't require lots of installation
hassles, which i find especially annoying when its just a silly game.
however, the background theme i use is 800k in binary -- the code version
is over 5 meg.  even the smaller headers add 60k of data to the game.

