llTarget
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Summary
Function: integer llTarget( vector position, float range );66 | Function ID |
0.0 | Forced Delay |
10.0 | Energy |
This function is to have the script know when it has reached a position.
It registers a position with a range that triggers at_target and not_at_target events continuously until unregistered.
Returns a handle (an integer) to unregister the target with llTargetRemove.
• vector | position | – | position in region coordinates | |
• float | range |
A similar function exists for rotations: llRotTarget
This function does not move the object, to do that use llSetPos or llMoveToTarget.
Caveats
- The position always references the current region. If you set llTarget to <100, 100, 100> while in Region A and then move the object to region B, the target automatically becomes <100, 100, 100> in Region B.
- The position can be set outside the region boundaries, but at_target can only happen if the range extends into the current region. The part of the range outside the current region will not activate at_target.
- Only 8 targets can be active to a script. Additional llTarget will remove the oldest target set.
Examples
integer target_id;
vector target_pos;
default
{
state_entry()
{
target_pos = llGetPos() + <1.0, 0.0, 0.0>;
target_id = llTarget(target_pos, 0.5);
}
at_target(integer tnum, vector targetpos, vector ourpos)
{
if (tnum == target_id)
{
llOwnerSay("object is within range of target");
llOwnerSay("target position: " + (string)targetpos + ", object is now at: " + (string)ourpos);
llOwnerSay("this is " + (string)llVecDist(targetpos, ourpos) + " meters from the target");
llTargetRemove(target_id);
}
}
not_at_target()
{
llOwnerSay(
"not there yet - object is at " + (string)llGetPos() +
", which is " + (string)llVecDist(target_pos, llGetPos()) +
" meters from the target (" + (string)target_pos + ")"
);
}
}
See Also
Events
• at_target | not_at_target | – | positional target events | |
• at_rot_target | not_at_rot_target | – | rotational target events |
Functions
• | llTargetRemove | – | Cancel a target position | |
• | llRotTarget | – | Register a target rotation | |
• | llRotTargetRemove | – | Cancel a target rotation |