LlMoveToTarget

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/LSL

MoveToTarget

llMoveToTarget

Summary

1 Bug

Function: llMoveToTarget( vector target, float tau );

0.0	Forced Delay
10.0	Energy

Critically damp to target in tau seconds (if the script is physical)

• vector	target	–	region position
• float	tau	–	seconds to critically damp in

To stop the object from maintaining the target positions use llStopMoveToTarget
To change the rotation in the same manner use llLookAt or llRotLookAt.

Caveats

• Only works in attachments and physics-enabled objects.
• When slowly moving to a lower Z value, beware of SVC-2441 - the sim will incorrectly move the object down faster than it should. That is, if you try moving to llGetPos() + <10, 10, -10>, you can end up at .z-10 several meters before getting to .x-10 and .y-10. There is a demo object in the JIRA which shows this effect.
• A llMoveToTarget call seems to persist even if physics is turned off. This is a useful trick on sluggish sims where the object can drop a bit between the call to enable physics and the call to llMoveToTarget - just do the llMoveToTarget before setting the object to physical.
• llVecDist(llGetPos(), target) must be less than 65, or no movement will occur.
• Calling llMoveToTarget with a tau of 0.0 will silently fail, and do nothing.

Examples

Drop this script in a prim to have it follow the prim owner. <lsl> default {

   state_entry()
   {
       vector pos = llGetPos();
       llSetStatus(STATUS_PHYSICS, TRUE);
       // Little pause to allow server to make potentially large linked object physical.
       llSleep(0.1);
       llMoveToTarget(pos,0.4);
       // Look for owner within 20 meters in 360 degree arc every 1 seconds.
       llSensorRepeat("", llGetOwner(), AGENT, 20.0, PI,1.0);
   }
   sensor(integer total_number)
   {
       // Get position of detected owner
       vector pos = llDetectedPos(0);
       // Offset back one metre in X and up one metre in Z based on world coordinates.
       vector offset =<-1,0,1>;

// offset = offset*llDetectedRot(0); //Adding this line will orient the follower relative to the owner's position.

       pos+=offset;
       llMoveToTarget(pos,0.4);     
   }

}

</lsl>

See Also

Functions

•	llStopMoveToTarget
•	llLookAt
•	llRotLookAt
•	llTarget

Deep Notes

Signature
function void llMoveToTarget( vector target, float tau );