Playing sound with a sensor?

Have been trying to put together a script that set off a sounds when someone gets close to a object, but it only works now and again, and also only seem to react to me, and no one else.

float LOUDNESS = 0.5;
float sensorRange = 5.0;

default
{
state_entry()
{
llSensorRepeat("", NULL_KEY, AGENT, sensorRange, TWO_PI, 10);
}



sensor(integer num_detected)
{
integer sounds = llGetInventoryNumber(INVENTORY_SOUND);

if ( sounds <= 0 ) return;

string soundname = llGetInventoryName( INVENTORY_SOUND, llFloor(llFrand(sounds)) );
if ( soundname != "" )
{
llPlaySound( soundname, LOUDNESS );
}

}
}

Any ideas what can be done?

Thanks

It takes time to download any sound to the client, could have something to do with it. Each new sound takes a new download and any new client need to download before the sound is played.

Not sure if it'll help but I think you need llPreloadSound(string sound)

That is a good idea. Will try to put it in there. But still it only seem to work for me and noone else??

edit: never played with sounds - sorry, can't help there..

I wouldn't go hitting up the inventory on every single sensor return.. Just have a global for the number of sounds and update it when the inventory changes..

Maybe something like this:

float LOUDNESS = 0.5;
float sensorRange = 5.0;
float sensorRate = 10.0;
integer soundCount;

default
{
	state_entry()
	{
		llSensorRepeat("", NULL_KEY, AGENT, sensorRange, TWO_PI, sensorRate);
		soundCount = llGetInventoryNumber(INVENTORY_SOUND);
	}

	changed (integer mask)
	{
		if (mask & CHANGED_INVENTORY)
		{
			soundCount = llGetInventoryNumber(INVENTORY_SOUND);
		}
	}

	sensor(integer num_detected)
	{
		if (soundCount <= 0)
		{
			return;
		}

		string soundname = llGetInventoryName( INVENTORY_SOUND, llFloor(llFrand(soundCount)));
		if ( soundname != "" )
		{
			llPlaySound( soundname, LOUDNESS );
		}
	}
}

hmm, the preload sound looks like it might be an ok funtion if you were using only a couple certain sounds. but you're wanting to play a random sound on each sensor event.
while a sensor is already hell on the server, preloading a long list of sounds probably isn't good for it either. also the index for the first sound is always 0. but you're basing the random number on how many sounds are in the list. so if you have 1 sound in the list and it happens to choose 1 instead of 0 on the random number, it won't play anything. so it should be:

string soundname = llGetInventoryName( INVENTORY_SOUND, llFloor(llFrand(soundCount-1)));//adding minus 1 to the soundcount makes it choose a number betweeen 0 and the last index number instead of 0 and the number of sounds

Got it working now. Thanks for all the help I got from you guys!!

this should work hopefully

I was looking for a similar script to this for some Halloween objects. Ruthven's script works but the sound keeps repeating. Is it possible to play the sound only once while the avi is in range - so they have to move to trigger it again? Thanks

that would be a little more complicated as far as using the sensor is concerned. you would need to record the avi's position, and then if they're picked up in the sensor again, check to see if it's the same position or not. you could try a flat prim they have to walk on and use a collision event

Ah ok, well I will put this at the bottom of my to-do list then. Thanks Ruthven )

are collisions reliable again?