Difference between revisions of "No Limit Teleporter"

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<lsl>
<lsl>
if(llGetPos() != dest)
if(llGetPos() != dest)
//is bad<br>
//is bad
</lsl>
</lsl>
<lsl>
<lsl>
if(llVecDist(llGetPos(),dest)<0.001)
if(llVecDist(llGetPos(),dest)<0.001)
//is MUCH better<br>
//is MUCH better
</lsl>
</lsl>
ie:
ie:

Revision as of 12:02, 4 October 2009

Simple Teleporter - No Limitation


Zero - Lag
You can do anything, change the code and all more... To use:
[+] Set stapos (end of script) to the object position (where to back when the destination is reach).
[+] Set dest (end of script) to the object destination.


<lsl> //Leave that here //Script created by Morgam Biedermann vector posnow; vector stapos; rotation rotnow; teleport(vector dest) {

   if(llGetPos() != dest)
   {
       llSetPos(dest);
       teleport(dest);
   }
   else
   {
       llUnSit(llAvatarOnSitTarget());
       teleports(stapos);
   }

} teleports(vector dest) {

   if(llGetPos() != stapos)
   {
       llSetPos(stapos);
       teleports(stapos);
   }

} default {

   state_entry()
   {
       stapos = <141,19,30>;
   }
   touch_start(integer vez)
   {
       if(llDetectedKey(0) == llGetOwner())
       teleport(<141,19,505>);
   }

} </lsl> The above example is a really bad approach to use for many reasons. Not least of which is that lag is precisely what it *will* generate.

An equivalency check that respects SLs somewhat wiggly precision system, and isn't trying to match a movement to EXACTLY 6 decimal places of precision is needed.
<lsl> if(llGetPos() != dest) //is bad </lsl> <lsl> if(llVecDist(llGetPos(),dest)<0.001) //is MUCH better </lsl> ie: <lsl> teleports(vector dest) { // if(llGetPos() != stapos) // This an inherently bad approach; given 6 decimal places on 3 floats in a vector its // very UNlikely the equivalency will be precisely equal even if its VERY close, this // will become especially evident at high altitude. It'll look like its stopped, // but the llSetPos() will be still thrashing away. Possibly for quite some time/forever. // // the below will stop in a timely manner.

   if(llVecDist(llGetPos(),dest) <= 0.001)
   {   llSetPos(dest); //corrected variable
       teleports(dest); //corrected variable
   }

} </lsl> And a system that has a user function call itself from within itself is probably not good. This is MUCH Better. [MUST be compiled in MONO] <lsl> teleports(vector dest) { list l=[PRIM_POSITION,dest];

   l+=l;l+=l;l+=l;l+=l;l+=l;l+=l;l+=l;l+=l;l+=l;
   llSetPrimitiveParams(l);

} </lsl>