Difference between revisions of "LlSitTarget"
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| Line 63: | Line 63: | ||
list GetSitTarget(integer prim, key av) | list GetSitTarget(integer prim, key av) | ||
{//WARNING: llGetObjectDetails can introduce an error that goes as far as the 5th decimal place. | {//WARNING: llGetObjectDetails can introduce an error that goes as far as the 5th decimal place. | ||
integer this = llGetLinkNumber(); | |||
if(prim == LINK_THIS) | if(prim == LINK_THIS) | ||
prim = | prim = this; | ||
else if(prim == LINK_ROOT) | else if(prim == LINK_ROOT) | ||
prim = !! | prim = !!this; | ||
list details = [OBJECT_POS, OBJECT_ROT]; | list details = [OBJECT_POS, OBJECT_ROT]; | ||
Revision as of 22:09, 31 August 2007
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: llSitTarget( vector offset, rotation rot );| 238 | Function ID |
| 0.0 | Forced Delay |
| 10.0 | Energy |
Set the sit location for this object (if offset == <0.0, 0.0, 0.0> clear it)
| • vector | offset | |||
| • rotation | rot |
Caveats
Examples
default
{
state_entry()
{
llSitTarget(<0.0, 0.0, 1.0>, ZERO_ROTATION); //The vector's components must not all be set to 0 for effect to take place.
}
}
Useful Snippets
//Sets / Updates the sit target moving the avatar on it if necessary.
UpdateSitTarget(vector pos, rotation rot)
{
llSitTarget(pos, rot);//Set the sit target
key user = llAvatarOnSitTarget();
if(user)//true if there is a user seated on the sittarget, if so update their position
{
vector size = llGetAgentSize(user);
if(size)//This tests to make sure the user really exists.
{
//We need to make the position and rotation local to the current prim
rotation localrot = ZERO_ROTATION;
vector localpos = ZERO_VECTOR;
if(llGetLinkNumber() > 1)//only need the local rot if it's not the root.
{
localrot = llGetLocalRot();
localpos = llGetLocalPos();
}
pos.z += 0.4;
integer linkNum = llGetNumberOfPrims();
do{
if(user == llGetLinkKey( linkNum ))//just checking to make sure the index is valid.
{
llSetLinkPrimitiveParams(linkNum,
[PRIM_POSITION, ((pos - (llRot2Up(rot) * size.z * 0.02638)) * localrot) + localpos,
PRIM_ROTATION, rot * localrot / llGetRootRotation()]);
jump end;//cheaper but a tad slower then return
}
}while( --linkNum );
}
else
{//It is rare that the sit target will bork but it does happen, this can help to fix it.
llUnSit(user);
}
}
@end;
}//Written by Strife Onizuka, size adjustment provided by Escort DeFarge
list GetSitTarget(integer prim, key av)
{//WARNING: llGetObjectDetails can introduce an error that goes as far as the 5th decimal place.
integer this = llGetLinkNumber();
if(prim == LINK_THIS)
prim = this;
else if(prim == LINK_ROOT)
prim = !!this;
list details = [OBJECT_POS, OBJECT_ROT];
vector tp = llGetAgentSize(av);
rotation f = llList2Rot(details = (llGetObjectDetails(llGetLinkKey(prim), details) + llGetObjectDetails(av, details)), 1);
rotation r = llList2Rot(details, 3) / f;
return [((llList2Vector(details, 2) - llList2Vector(details, 0)) / f) + (llRot2Up(r) * tp.z * 0.02638) - <0.0, 0.0, 0.4>, r];
}//Written by Strife Onizuka