llRotTarget

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/LSL

RotTarget

llRotTarget

Summary

Function: integer llRotTarget( rotation rot, float error );

68	Function ID
0.0	Forced Delay
10.0	Energy

This function is to have the script know when it has reached a rotation.
It registers a rot with a error that triggers at_rot_target and not_at_rot_target events continuously until unregistered.
Returns a handle (an integer) to unregister the target with llRotTargetRemove

• rotation	rot	–	target rotation
• float	error	–	angle in radians, defines when rot has been reached

A similar function exists for positions: llTarget
This function does not rotate the object, to do that use llSetRot, llRotLookAt or llLookAt.

Caveats

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Examples

<lsl> vector standrot = <0.0, 0.0, 0.0>; vector fliprot = <45.0, 0.0, 0.0>;

// simple two-state rot target detection and rotation by Hypatia Callisto // works, to detect a rotation target. An example I wrote // since there is almost zilch for clean examples for // at_rot_target, not_at_rot_target, llRotTarget, llRotTargetRemove

integer rottarget;

default {

   state_entry(){ 
       rottarget = llRotTarget(llEuler2Rot(fliprot*DEG_TO_RAD), 0.1);
       llSetPrimitiveParams ([PRIM_ROTATION, llEuler2Rot(standrot*DEG_TO_RAD)]); // rotate to starting point
   }

   not_at_rot_target()
   { 
       llRotTargetRemove( rottarget );
       llOwnerSay("not there"); //not at target
   }
       
   touch_start (integer total_number)
   {
       state rotatestate; // change to state for new position
   }

}

state rotatestate {

   state_entry(){ 
       rottarget = llRotTarget(llEuler2Rot(fliprot*DEG_TO_RAD), 0.1);
       llSetPrimitiveParams ([PRIM_ROTATION, llEuler2Rot(fliprot*DEG_TO_RAD)]); // rotate to new point
   }
   
   at_rot_target(integer tnum, rotation targetrot, rotation ourrot)
   { 
       llRotTargetRemove( rottarget );
       llOwnerSay("there"); //reached the target
   }

   touch_start(integer touched){ 
       state default; 
   }
   

}

</lsl>

See Also

Events

• at_rot_target	not_at_rot_target	–	rotational target events
• at_target	not_at_target	–	positional target events

Functions

•	llRotTargetRemove	–	Cancel a target rotation
•	llTarget	–	Register a target position
•	llTargetRemove	–	Cancel a target position

Deep Notes

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Signature
function integer llRotTarget( rotation rot, float error );