Moon Patrol Hack for Sound

[+doctorclu]

Hey all source hackers, is there any way we could make two versions of Moon Patrol:

 

1) Music only.

2) Sound only.

 

I'm trying to narrow it down to those two for capturing sounds.

 

Thanks!

 

Doctor Clu

[emkay]

Why changing a game that is perfect as it is ?

[Rybags]

Likely the game uses an engine that would be similar in function to VBXE - ie a regular VBlank call that allows music + sound processing on an ongoing basis. On demand sound effects usually initiated by a seperate call with parameter/s.

If you want to record sound you can selectively disable voices in Altirra. From a quick look it seems like Moon Patrol uses Voice 2 for the sound effects though it's possible music borrows it as well and effects might occasionally use others.

[+doctorclu]

I like the Altirra suggestion. I will have to try that when I get home. What options do you use in Altirra to turn the voice channels off or on?

[Mclaneinc]

Ctrl + Alt + 1 for turning channel 1 off and on, 2 - 4 for the other channels

[+doctorclu]

Got Altirra working on my OS X.11 Mac using wine bottler.

 

Managed to turn off the tracks. Nice!

 

Now if I can just get an image to run past check point A and figure out how to mimic joystick controls and we'll be all set. Altirra is quite nice. Never had a reason to set this up before now.

[+doctorclu]

Ok three questions:

 

1) Why is Moon Patrol playing on auto play? The buggy is jumping over craters by itself.

2) Why is Moon Patrol only getting to level A and restarting?

3) How can I use some keyboard control to play the game?

 

(And I figured this out enough for effect. Basically like shift 2 to turn off auto play mode. Once in manual play mode it gets past level A. Select keyboard entry from the pull down menus.)

 

(Cool emulator!)

Edited December 8, 2015 by doctorclu

[+doctorclu]

Attached are the sound files I was able to create from this thread. Thanks all!

MP Sounds 8-bit.zip