Timer vs. Sleep AND cyclic linear motion

I want to llSetPos every .2 seconds (because there is a .2 second sleep with each call of the function.

Since I call this in a timer event, do I set the timer event to fire every .2 seconds? Or every .0001 second? Does the .2sec sleep affect the timer frequency?

Oh, and what I *really* want to do is call llSetPos more than once every .2 seconds. Any simple tips for using multiple scripts to call it, way, every .05 seconds? I want to move something like a piston, in a cyclic motion (but in a straight line).

Thanks,
Baron

Timers run asynchronously with the script, so with the 0.2 second built-in sleep, there'd be no point in setting the timer interval any smaller than 0.2 seconds.

The general pattern for multiple scripts is just to llMessageLinked to LINK_THIS, where the slave scripts trigger by matching "their" number as the integer part of the link_message. One might use the string part to pass the motion parameters the script should execute.

Depending what's actually intended for the motion, a little experimenting with llMoveToTarget may possibly be worthwhile. It gives smoother motion than a bunch of calls to llSetPos, if that happens to be the objective.

title your scripts "piston 0", "piston 1", etc

then try this

 integer vIntPiston = (float)llGetSubString( llGetScriptName(), 7, 7 );
  //-- change these to suit you
 vector CONSTANT_THAT_EQUALS_POSITION = <0,0,0>;
 vctor CONSTANT_THAT_EQUALS_REST_POSITION = <0,0,0>;
 
 default{
   state_entry(){
   }
 
   link_message( integer vIntNull, integer vIntCode, string vStrNull, key vKeyNull){
 	if (vIntCode == 123){
 	  llSleep( gIntPiston / 4.0
 	  llSetPos( CONSTANT_THAT_EQUALS_POSITION );
 	  llSetPos( CONSTANT_THAT_EQUALS_REST_POSITION );
 	}
 
 }

and in your main script

 default{
   state_entry(){
 	llSetTimerEvent( 0.4 );
   }
 
   timer(){
 	llMessageLinked( LINK_ROOT, 123, "", "" );
   }
 }

any faster and you'll need to have a seperate script for both up and down states

Ahhh, thank you. Was trying to do this nearly in sleep . . . tried using one link message and various sleeps in the child scripts. That did not work. But I see now, multiple link messages sound like they will do what I want.

I tried using llMoveToTarget, but because of overlapping prims, I cannot make it physical.

I will try this . . . thanks!!!