Difference between revisions of "Listen"
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Omei Qunhua (talk | contribs) (Removed largely irrelevant rambling example. Examples for specific language elements should be concise and focussed.) |
Lady Sumoku (talk | contribs) m (Replaced old <LSL> block with <source lang="lsl2">) |
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{{LSL Tip|Please make sure that you close open listeners where possible. You'll make the Second Life experience so much better when paying attention to details here.}} | {{LSL Tip|Please make sure that you close open listeners where possible. You'll make the Second Life experience so much better when paying attention to details here.}} | ||
Trivial example to listen to any chat from the object owner and respond once. To reduce lag and avoid spamming surrounding users, it is vastly preferable to listen on channels other than 0 and to trigger the listen event by chatting on an alternative channel such as '/5 hello'. | Trivial example to listen to any chat from the object owner and respond once. To reduce lag and avoid spamming surrounding users, it is vastly preferable to listen on channels other than 0 and to trigger the listen event by chatting on an alternative channel such as '/5 hello'. | ||
< | <source lang="lsl2"> | ||
// says beep to owner the first time owner says something in main chat; | // says beep to owner the first time owner says something in main chat; | ||
integer listen_handle; | integer listen_handle; | ||
| Line 43: | Line 43: | ||
} | } | ||
} | } | ||
}</ | }</source> | ||
|helpers | |helpers | ||
Revision as of 00:23, 22 January 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
| Channel Constant | Description | |
|---|---|---|
| DEBUG_CHANNEL | 0x7FFFFFFF | Chat channel reserved for script debugging and error messages, broadcasts to all nearby users. |
| PUBLIC_CHANNEL | 0x0 | Chat channel that broadcasts to all nearby users. This channel is sometimes referred to as: open chat, local chat and public chat. |
Caveats
- On state change or script reset all listens are closed automaticaly.
- When an object changes owner any listen registered with llGetOwner will not automatically update itself until the script is reset. The scripter can catch this scenario per the example below.
- If a message satisfies the filters of multiple llListens registered by the script, only one event will be raised.
- A prim cannot hear/listen to chat it generates.
- The location of the listen is not at the listening prim's location but at the root prim's location. This is to deter people using child prims for spying over parcel boundaries. Chat generating functions on the other hand generate chat at the calling prim's location (and not at the root prim's location).
Examples
 |
Important: Please make sure that you close open listeners where possible. You'll make the Second Life experience so much better when paying attention to details here. |
Trivial example to listen to any chat from the object owner and respond once. To reduce lag and avoid spamming surrounding users, it is vastly preferable to listen on channels other than 0 and to trigger the listen event by chatting on an alternative channel such as '/5 hello'.
// says beep to owner the first time owner says something in main chat;
integer listen_handle;
default
{
state_entry()
{ //Registers the listen to the owner of the object at the moment of the call. This does not automatically update when the owner changes.
// Change 0 to another positive number to listen for '/5 hello' style of chat.
listen_handle = llListen(0, "", llGetOwner(), "");
}
listen( integer channel, string name, key id, string message )
{
llOwnerSay("beep");
// Stop listening until script is reset
llListenRemove(listen_handle);
}
changed(integer mask)
{ //Triggered when the object containing this script changes owner.
if(mask & CHANGED_OWNER)
{
llResetScript(); // This will ensure the script listens to the new owner, and doesn't continue listening to the creator.
}
}
}
See Also
Functions
| • | llListen | |||
| • | llListenControl | |||
| • | llListenRemove | |||
| • | llDialog | |||
| • | llOwnerSay | – | Sends chat to the owner only to avoid spamming the PUBLIC_CHANNEL | |
| • | llWhisper | – | Sends chat limited to 10 meters | |
| • | llSay | – | Sends chat limited to 20 meters | |
| • | llShout | – | Sends chat limited to 100 meters | |
| • | llRegionSay | – | Sends chat limited to region |
Deep Notes
Issues
All Issues
~ Search JIRA for related Issues
|
|
SVC-92 | A | llTargetSay() - region-wide direct communication |
Signature |
|---|
event void listen( integer channel, string name, key id, string message ); |