Building Jet Packs in Second Life

Jet Packs can be very useful in Second Life. A jet pack allows you to fly much higher than Second Life normally allows. This video tutorial shows how to create a jet pack that not only allows you to fly higher than the limits imposed by Second Life, but also includes a hover feature that holds your avatar in place when it is high up.

Get The Jet Pack Here

http://slurl.com/secondlife/Encogia/157/233/23

Script Code

// From the book:
//
// Scripting Recipes for Second Life
// by Jeff Heaton (Encog Dod in SL)
// ISBN: 160439000X
// Copyright 2007 by Heaton Research, Inc.
//
// This script may be freely copied and modified so long as this header
// remains unmodified.
//
// For more information about this book visit the following web site:
//
// http://www.heatonresearch.com/articles/series/22/

integer locked; 
float LOCKTIME = 1.0; 

displayAltitude()
{
    vector pos = llGetPos();
    llSetText("Altitude: " + (string)((integer)pos.z), <0,1,0>, 1 );
}

vector getVelocity()
{
    rotation rot = llGetRot();               
    vector vel = llRot2Fwd(rot);  
            
    if( llGetAgentInfo(llGetOwner()) & AGENT_FLYING )
        vel*=4;    
    else
        vel/=2;
    return vel;
}

default
{
    state_entry()
    {
        llReleaseControls();
        locked = FALSE;
        displayAltitude();
    }
    
    attach(key id)
    {
        if(id)
        {
            state attached;
        }
    }
}

state attached
{    
    state_entry()
    {
        llSetTimerEvent(1);
        locked = FALSE;
        displayAltitude();
    }
    
    attach(key id)
    {
        if(id==NULL_KEY)
        {
            state default;
        }
    }
    
    timer()
    {
        if (llGetAgentInfo(llGetOwner()) & AGENT_FLYING) 
        {
            state flying;
        }
    }   
}

state flying
{    
    state_entry()
    {        
        llRequestPermissions(llGetOwner(), PERMISSION_TAKE_CONTROLS);
        llSetTimerEvent(1);
        locked = FALSE;
    }
    
    run_time_permissions(integer perm)
    {
        if (perm & PERMISSION_TAKE_CONTROLS) {
            llTakeControls(CONTROL_UP|CONTROL_DOWN|CONTROL_FWD|CONTROL_BACK, TRUE, FALSE);
        }
    }
    
    attach(key id)
    {
        if(id==NULL_KEY)
        {
            state default;
        }
    }
    
    timer()
    {
        displayAltitude();
        
        if (!(llGetAgentInfo(llGetOwner()) & AGENT_FLYING)  ) 
        {
            llReleaseControls();
            state attached;
        }    
        
        if ((!locked) && (llGetTime() > LOCKTIME))
        {
            llMoveToTarget(llGetPos(), 0.2);
            locked = TRUE;
        }    
    }
    
    control(key id, integer held, integer change)
    {
        if (locked)
        {
            llStopMoveToTarget();
            locked = FALSE;
        }
        
        if (held & CONTROL_UP)
        {
            llPushObject(llGetOwner(), <0,0,2>, ZERO_VECTOR, FALSE);
        }
        else if (held & CONTROL_DOWN)
        {
            llPushObject(llGetOwner(), -<0,0,2>, ZERO_VECTOR, FALSE);
        }
        else if (held & CONTROL_FWD)
        {
            llPushObject(llGetOwner(), getVelocity(), ZERO_VECTOR, FALSE);
        }
        else if (held & CONTROL_BACK)
        { 
            llPushObject(llGetOwner(), -getVelocity(), ZERO_VECTOR, FALSE);
        }
        
        llResetTime();
    }
}