Sensing two different objects

[LissomePrey]

I want to detect the presence of either of two different objects but llSensor appears to restrict you to one.

Can I have two sensors outstanding at the same time or is it better to have one and switch the search between the two objects on a timed basis?

If the latter can I still use llSensorRepeat if the name parameter is a variable that I change in the event handling?

[Wulfie Reanimator]

The simplest solution would be to use a timer-event to call llSensor separately for each object. (Not llSensorRepeat)

The another solution could be to construct a filter that covers both objects, and ignore any uninteresting results in the sensor-event.

[Quistess Alpha]

Reading a bit on the wiki, it does seem you can only have one llSensorRepeat() active at any time. @Wulfie beat me to the solutions I would suggest.

[LissomePrey]

Thanks both.

By 'filter' do you mean use the type parameter, in my case it would be SCRIPTED? I was worried that might produce too many results.

[Quistess Alpha]

Yeah, basically that. you could also name your objects the same, and 'filter' based on name though.

Another thing you might keep in mind is if you expect the object you're scanning for to /not/ be there most of the time, it might be nicer on the server to implement a messaging protocol with llShout() or llRegionSay() and llListen(), for example having the 'sensor object' say "PING" on a timer, and the thing you're detecting say "PONG" if it hears the ping and is within the correct range.

[Rolig Loon]

One type of filter:

llSensor("My Object","",ACTIVE|PASSIVE, 20.0, PI);

sensor(integer num)
{
    while (~num)
    {
        string Desc = llList2String( llGetObjectDetails(llDetectedKey(num),[OBJECT_DESC]),0);
        if (Desc == "Type A")  { //do type A stuff}
        else if (Desc == "Type B") { //do type B stuff}
        --num;
    }
}