speaking to only an object that touched it

i am curious is it possible to create an object that can communicate in a public channel - not to the owner - to anyone

that if touched can tell that object to carry out a task but not affect those around it

a perfect example would be puddle

if you drive through it on a bicycle or any vehicle for that matter the puddle say splash - which make the script on the bicycle splash (trigger its particle script)

but the other bicycles in listening distance do not trigger even though they heard the command

is it possible to make a collision script talk to everyone but on alter what collides with it

the problem i have is i collide with it but it also makes the sprays on the other bicycles trigger their sprays too at the same time

this has to be open and not owner or group - openly speak on a channel that all the open free bikes can use

You could at lease llWhisper instead of llSay to reduce the noise....

llInstantMessage?

Perhaps, instead of whispering "splash", the puddle whispers "splash|"+llDetectedKey() inside the collision_start event, and the bicycles listen for "splash|"+llGetKey() ?

You don't have to do this in an open chat. I can think of a few ways off the top of my head. Try..

(1) Puddle detects collision with bicycle, gets bicycle owner's UUID.
(2) Puddle creates a trigger based on the UUID (llGetSubString(UUID,-8,-1), for example) and sends it as a message on a private channel.
(3) All bicycles in the region hear the message and filter it, listening for only the trigger that matches their own owner's UUID, as in ....

string UKey = llGetSubString((string)llGetOwner(),-8,-1);
integer handle = llListen(-987654,"","",UKey);

ETA: Qie's suggestion is even easier.
ETA (again): Obviously, if you do it my way you can also whisper "Splash" at the same time if you wish. Just don't let that word trigger anything.

Whisper the ID of the object that collided along with the message.

eg: llSay(MAGIC_NUMBER, (string)llDetectedKey(0) + " splash";

Then in the listener:

if(llGetKey() == (key)message && llGetSubString(message, 37, -1) == "splash" { ... }

Did I miss something?
Why don't you let the collision event in the bicycle trigger the splash?
To make sure it is a dog you hit you could check its name with:
if ( llDetectedName(0) == "pluto" ) splash(); // pluto is not with us anymore...

LOL .... Good plan, Dora. If the OP really needs to hear the word "Splash" in chat, there's no reason why he can't just include llWhisper(0,"Splash!" in the splash() function and still send the particle-triggering message in a private channel. The message can simply be llDetectedKey(0) itself, so the bicycle listens for ....

llListen (-987654,puddle,"",(string)llGetOwner())

it might be better to use llDetectedOwner for the message so that if the puddle detects the vehicle and not the owner, then it will still say the right key that the vehicle is listening for.

also white not make the puddle do the splashing? like the splashable water systems?

YEAH the bikes are free and can be borrowed and not owned by the people using them so owner has to be avoided - as they can have their own free bikes too but they dont own the puddle? so it will not hear the puddle surely?

and i tried the whisper event its just too quiet the say event works but that triggers all the other bikes in say distance when i just want that single individual bike to be affected

Oh, well in that case instead of using the owner's key as the trigger, you use the key of the bicycle itself. In the puddle object's collision_start event you include the line

llSay(-987654,(string)llDetectedKey(0));

and in the bicycle, you use

llListen(-987654,puddle,"",(string)llGetKey());

The listen event in your bicycle will only hear the puddle speak if it was the bicycle that collided with the puddle. Other bicycles nearby, all listening on the same private channel, won't hear a thing.

It ought to work.

thanks thats great )) )))PPPP