Collision events question.

Howdy all!

Been working on a security system, which works fine now, but with improving it's system usage in mind had a question about it. Keep in mind this was designed to keep out sithackers.

I'm using llCollisionStart on a relatively thin prim which covers the width of the room, then using a timer it repositions itself to two other spots... just to make sure it will collide with anyone flying or sitting above the ground.

Now my question is this... would it work just as well to have a prim that covers the entire room, vertically and horizontally, that way there's no timer event? Would someone sithacking into the middle of the room avoid the collision, or is just being in the middle of the prim enough to trigger it?

Thanks all! Know if I can get rid of the timers it would be a good thing.

#1. Trying to avoid people who use sit to move in is stupid. We already have enough stupid security systems to deal with, please don't give us another one.

But, assuming that you actually have a decent reason for this... Use a sensor. It's much more reliable than a collision event, and with a bit of math, you could have a square zone that would be out-of-bounds.

Didn't I read that in 1.7, LL has blocked the sit-move technique for going through solid walls? This area of endeavor might be moot when 1.7 comes out.

I do hope they have found a way to remove sithacking... while I'm sure some people enjoy it, it's a pain in my butt

Really though, I've treid to make this system very reasonable. It only works in the exact area that supposed to be pay to enter. So anyone not paying.. well they just get booted home. Seems fair to me.

I would gladly use sensors. but the rooms are not exactly square. They're 20x20 with a 10x5 "balcony".

Does anyone have some good info on when collisons do, and do not work? Seems to me that if someone is sitting, it doesn't quite work. I'm not quite sure of this though, as maybe llTeleportHome may not work on someone sitting? I've read the wiki's and all, done my research, but some things just don't seem to be exactly covered.

Again wondering if I should switch from collison_start, to just plain collison, but wouldn't this create a lot of hits(other objects in the room constantly colliding)?

Anywho, thanks for responding!! This has been sitting around for a while

No - it's something they will eventually be able to do with Havock 2.

Just have it check the llDetectedPos against your bounding box...

i.e.

upperCorner = <30,30,30>;   //Every number in this should be larger than smallerCorner
smallerCorner = <20,20,20>;

integer isWithinBox( vector t )
{
    vector u = upperCorner;
    vector s = smallerCorner;
    if ( 
		( t.x <= u.x ) && ( t.x >= s.x ) &&	//Validate x coordinates
		( t.y <= u.y ) && ( t.y >= s.y ) &&	//Validate y coordinates
		( t.z <= u.z ) && ( t.z >= s.z ) )	//Validate z coordinates
			return TRUE;	//This was inside the bounding box
	return FALSE;	//It was not within the bounding box
}

Yes, I searched this forum for threads with no responses

nevermind

Security in SL is non existent. Like in real life, if someone is persistent they will find away around it. It's amazing what you can see from 3/4 of a sim away. The art/science of spying in SL isn't difficult to master. You can either be paranoid or not let it bother you. Realistically there is no way (short of 'Trusted Computing') to secure SL.

If your selling a product or service that relies on security (short of selling security systems) then you probably won't make money.

If you want privacy A) buy an island B) borrow some space on someones island. Thats the only way you will get it.

Use a sensor to detect people.