Difference between revisions of "LlTarget"
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|func=llTarget|sort=Target | |func=llTarget|sort=Target | ||
|return_type=integer | |return_type=integer | ||
|return_subtype=handle | |||
|p1_type=vector|p1_name=position | |p1_type=vector|p1_name=position | ||
|p2_type=float|p2_name=range | |p2_type=float|p2_name=range | ||
|func_footnote=A similar function exists for rotations: {{LSLG|llRotTarget}}<br/>This function does not move the object, to do that use {{LSLG|llSetPos}} or {{LSLG|llMoveToTarget}}. | |func_footnote=A similar function exists for rotations: {{LSLG|llRotTarget}}<br/>This function does not move the object, to do that use {{LSLG|llSetPos}} or {{LSLG|llMoveToTarget}}. | ||
|func_desc=This function is to have the script know when it has reached a position.<br/>It registers a {{LSLP|position}} with a {{LSLP|range}} that triggers {{LSLG|at_target}} and {{LSLG|not_at_target}} events continuously until unregistered. | |func_desc=This function is to have the script know when it has reached a position.<br/>It registers a {{LSLP|position}} with a {{LSLP|range}} that triggers {{LSLG|at_target}} and {{LSLG|not_at_target}} events continuously until unregistered. | ||
|return_text= | |return_text=to unregister the target with {{LSLG|llTargetRemove}}. | ||
|spec | |spec | ||
|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. | |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. | ||
Revision as of 12:04, 30 December 2013
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: integer llTarget( vector position, float range );| 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
<lsl> 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 + ")"
);
}
}
</lsl>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 |
Deep Notes
Signature |
|---|
function integer llTarget( vector position, float range ); |