falling then floating script

does anyone know how to script something that will fall once launched from a base then hit water then float. after that it will also need to explode(destroy) itself. this script will go towards building lifeboat rafts and also boats dropped from planes. it will also be here for other peoples future references

Falling... make it physical.

Floating... have a check for the height component of llGetPos() and compare to llWater(). When it gets to the height of the water you'll probably want to look at the vehicle code for a boat. If you just want it to float there, make it non-physical.

ok then so physical thing is in where?

and please provide the full script for the float.

also i want to launch it from a base on my plane then it drops.

or do i put a script that creates it?

also i want want it to fall then float not do 2 seperate things

also if it is the same object if you set it as physical it will fall but if you set it as non physical it wont but i don't know how to script so it changes them

Provide full scripts, sure for a reasonable fee, and a complete spec. Although you should be asking in products wanted not here.

Scripting tips gives people the chance to ask for help with their scripting problems, and advice on how to script better. Sometimes that results in full scripts, sometimes not.

The functions you're after are llSetStatus() to toggle physical on and off, using the STATUS_PHYSICS and TRUE and FALSE parameters.

vector pos=llGetPos();
float height = pos.z;

will let you get the object's current height. Something like a fast timer - llSetTimerEvent(0.05) - say, and then

timer()
{
    float water = llWater(ZERO_VECTOR);
    if(height<water) 
    {
        llSetTimerEvent(0.0);
        llSetStatus(STATUS_PHYSICS, FALSE);
        pos = llGetPos();
        pos.z = water;
        llSetPos(pos);
     }
}

will let you splash down and then bob back up (approximately) to the surface. Fast timers are heavy on the sim, but this one won't be on for that long, so it's not too dire. NB, I'd declare the float water as a global and grab it up in an on_rez event or similar, since it's never going to change, so you might as well grab it only the once.

script is a little bit wrong because it says sintax error on the top part that you have given me

No, it's not wrong, it's an incomplete script fragment.

then please could you put the full script down

If you want a full, working script, you can pay me or another scripter a fee to write it for you. I doubt that busy scripters will write you a full and complete script for free.