llCollisionSound for Attachments?

Hi. This is my first script and isn't working as I hoped. My goal is to have an object that is attached to me, make a sound when it collides with either another object or the ground. I can make the llcollisionsound but when i attach the object to me, it will not make the sound. Here's the script as it is so far. Any pointers on this?

string impact_sound = "bicyclebell";
float impact_volume = 1.0;

default
{
state_entry()
{
llCollisionSound(impact_sound, impact_volume);
}
}

Attachments do not (properly) call collision events themselves - they receive events from the avatar. Supposedly there was a bug with llVolumeDetect that would pass collisions directly, but I consider that a tad dubious.

Alternately, you could do this:

string impact_sound = "bicyclebell"; // Sound file
float time = 3.0; // Time between collision events
float vel = 5.0; // Minimum velocity needed to trigger a collision sound
float range = 20.0; // Range between lowest and highest collision volume

default
{
    state_entry()
    {
         llMinEventDelay(time);
    }

    collision_start(integer total_number)
    {
         float speed = llVecMag(llGetVel());
         if(speed > vel)
         {
             float volume = (speed - vel) / range;
             
             if(volume > 1.0) volume = 1.0;

             llCollisionSound(impact_sound, volume);
         }
    }

    land_collision_start(vector pos)
    {
         float speed = llVecMag(llGetVel());
         if(speed > vel)
         {
             float volume = (speed - vel) / range;
             
             if(volume > 1.0) volume = 1.0;

             llCollisionSound(impact_sound, volume);
         }
    }
}

Since collision events are passed from the avatar itself here, not the attachments, this will be called every time your avatar hits something and moves about. You have been warned.

Jeffrey and whomever is fascinated with this thread...

that script returns a type mismatch error in the space between the ) and the ; in the first llgetvel line. if i add the line again, the error moves to the second line, same space. any ideas?

That's becasue llGetVel() returns a vector, not a float. I think the line should read:

float speed = llVecMag(llGetVel());

thanks Jillian.. that fixed the error.

script compiled fine. no sound though. but i'm learning!

Yeah. Occasionally I slip up. I'll edit the code.

This doesn't work at all. I had to completely remove the velocity checks for it to even work detached.

It's not ment to be used detached. You would have to remove the velocity checks for it to work detached.
At that point it would just be smarter to set the collision sound llCollisionSound if your going to use it dettached.

Um, duh, Strife, but I'm saying it doesn't work ATTACHED either WITH the velocity checks...