Template:Needs Translation/
| 函数名
|
| Function: key llAvatarOnSitTarget( );
|
| 返回一个密钥，该密钥是位于prim上的用户的UUID。
|
| 如果prim缺少一个sit目标或者没有化身坐在prim上，则返回空密钥。
|
| 注意事项
|
| prim没有sit目标，除非使用非零向量作为第一个参数调用llSitTarget。
如果prim缺少一个sit目标，或者avatar位于另一个prim上，则确定对象上有多少个avatar以及哪些avatar的唯一方法是扫描链接集（例如，请参见llGetNumberOfPrims）。
|
| 示例
|
default
{
state_entry()
{
// set sit target, otherwise this will not work
llSitTarget(<0.0, 0.0, 0.1>, ZERO_ROTATION);
}
changed(integer change)
{
if (change & CHANGED_LINK)
{
key av = llAvatarOnSitTarget();
if (av) // evaluated as true if key is valid and not NULL_KEY
{
llSay(0, "Hello " + llKey2Name(av) + ", thank you for sitting down");
}
}
}
}
有用的片段
/Gets the link number of a seated avatar
integer GetAgentLinkNumber(key avatar)
{
integer link_num = llGetNumberOfPrims();
while (link_num > 1) // Check only child prims.
{
if (llGetLinkKey(link_num) == avatar) // If it is the avatar we want
{
return link_num; // then return the link number
}
--link_num; // else go on with next child.
}
// Avatar wasn't found
return FALSE; // 0 (zero) for easy testing.
}
//It's sometimes useful to use a state change
//useful when the prim is linked to an other prim
//and useful with a dialog box
default
{
state_entry()
{
//"Sit target is a prim property."
llSitTarget(<0.0, 0.0, 0.1>, ZERO_ROTATION);
}
changed(integer change)
{
if (change & CHANGED_LINK)
{
key av_sit = llAvatarOnSitTarget();
if (av_sit)
{
//Someone is on the sit target.
state sitting;
}
}
}
}
state sitting
{
state_entry()
{
//Open a dialog box when an avatar is sitting on the prim
key av_menu = llAvatarOnSitTarget();
llListen(-99, "", av_menu, "Yes");
llDialog(av_menu, "\nDo you like this example?", ["Yes", "No" ] , -99);
}
changed(integer change)
{
if (change & CHANGED_LINK)
{
key av_unsit = llAvatarOnSitTarget();
if (av_unsit == NULL_KEY)
{
//No one is on the sit target.
//"On state change all listens are removed automatically."
state default;
}
}
}
listen(integer chan, string name, key id, string msg)
{
// If the user clicked the "Yes" button
llWhisper(0, "Thank you");
}
}
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