// Ferd Frederix


integer debug = 0;

float TIME = 6.0;
integer channel;       // listener from other prim
integer listener;               // channel handle 

float oldDist;

vector StartSeatedRotation = <0, 0, 0>;      // animation start rotation
vector StopSeatedRotation = <0, 0, 180>;      // animation stop rotation 

vector StartSeatedOffset = <0, 0, 0.5>;     // where we sit to start    
vector StopSeatedOffset = <.5, 0, 0.2>;     // where we end up after teleport

vector DestPosition;            // calculated offset to the other door
rotation DestRotation;          // calculated rotation when we get there
string animation ;              // calculated animation name

key AvatarKey;                // key of who touched the door



BootUp(integer newchannel)
{
    oldDist = 0;
    channel = newchannel;
    
    if (debug) llOwnerSay("Channel=" + (string) channel);
    listener = llListen(channel,"","","");
    
    rotation SeatedRotation = llEuler2Rot( StartSeatedRotation * DEG_TO_RAD) * llGetRot();
    //llOwnerSay("bootup=" + (string) StartSeatedOffset+ "..." + (string) SeatedRotation);
    llSitTarget(StartSeatedOffset, <0,0,0,1>);
    
    animation = llGetInventoryName(INVENTORY_ANIMATION,0);
    llSetSitText("Enter");

    llRegionSay(channel,"reset");  
  
    llSetTimerEvent(30);     // die when the door shuts
        
}


MovePrim(float dir)
{
    
    vector   vPosOffset     = <dir, 0.0, 0.0>; //-- creates an offset one tick  in the positive X direction.
    integer i = 0;
    for (i = 0; i < 20; i++)
    {
        vector   vPosRotOffset  = vPosOffset * llGetRot(); //-- rotate the offset to be relative to objects rotation
        vector   vPosOffsetIsAt = llGetPos() + vPosRotOffset; //-- get the region position of the rotated offset
        llSetPos(vPosOffsetIsAt);
    }
}


 
Go()
{   
    if (debug) llOwnerSay("starting animation");
    llStartAnimation(animation);
    MovePrim(.1);

    if (debug) llOwnerSay("starting movement to " + (string )DestPosition);
    warpPos();
    
    MovePrim(.1);
    if (debug) llOwnerSay("ending  animation");

    llStopAnimation(animation);
    llUnSit(AvatarKey);
     
    if (! debug)
        llDie();

}

 warpPos() 
 {   //R&D by Keknehv Psaltery, 05/25/2006
     //with a little poking by Strife, and a bit more
     //some more munging by Talarus Luan
     //Final cleanup by Keknehv Psaltery
     //Changed jump value to 411 (4096 ceiling) by Jesse Barnett
     // Compute the number of jumps necessary
     // rotated by Ferd Frederix
     //llSitTarget(destpos, ROT);//Set the sit target
     integer jumps = (integer)(llVecDist(DestPosition, llGetPos()) / 10.0) + 1;
     // Try and avoid stack/heap collisions
     if (jumps > 411)
         jumps = 411;
     list rules = [ PRIM_POSITION, DestPosition ];  //The start for the rules list
     integer count = 1;
     while ( ( count = count << 1 ) < jumps)
         rules = (rules=[]) + rules + rules;   //should tighten memory use.
     llSetPrimitiveParams( rules + llList2List( rules, (count - jumps) << 1, count) );
     if ( llVecDist( llGetPos(), DestPosition ) > .001 ) //Failsafe
         while ( --jumps ) 
             llSetPos( DestPosition );
             
             
     DestRotation = llEuler2Rot( StopSeatedRotation * DEG_TO_RAD) * DestRotation  ;    // maybe rotate
     //DestRotation = llGetRot()  * DestRotation  ;    // maybe rotate
                     
     llSetRot(DestRotation);          // set dest rotation

     llWhisper(channel,"open");
     llSleep(1.0);
    
 }



default
{
    state_entry()
    {
        BootUp((integer) llGetObjectDesc());
    }
    
    changed (integer what)
    {
        if (what & CHANGED_LINK)
        {
            if (debug) llOwnerSay("changed");
            AvatarKey = llAvatarOnSitTarget();
            if (AvatarKey != NULL_KEY) 
            { 
                if (DestPosition != <0,0,0>)
                {
                    if (debug) llOwnerSay("request perms");
                    llRequestPermissions(AvatarKey,PERMISSION_TRIGGER_ANIMATION );
                }
                else
                {
                    llOwnerSay("Did not locate a second door by the same number!");
                    llUnSit(AvatarKey);
                }
            }
            
        }
        else
        {
            animation = llGetInventoryName(INVENTORY_ANIMATION,0);
        }
           
    }

    

    run_time_permissions(integer perm)
    {
        if(PERMISSION_TRIGGER_ANIMATION & perm)
        {
            if (debug) llOwnerSay("perms granted");
            Go();
        }
    }
    
    on_rez(integer p)
    {
        BootUp(p);  
    }

    timer()
    {
        llSetTimerEvent(0);
        if (! debug)
            llDie();
        
        
    }
    
    listen(integer channel,string name, key id, string message)
    {
        if(debug) llOwnerSay("Heard:" + message);
        if (id == llGetKey())
            return;
        if (message == "reset")
            return;
        if (message == "open")
            return;
        
        list params = llParseString2List(message,["|"],[""]);
        vector DestPositionproto = (vector) llList2String(params,0);
        
        rotation DestRotationproto = (rotation) llList2String(params,1);
        
        // remember the furthest prim that responds
        float dist = llVecDist(DestPositionproto,llGetPos());
        if (dist  > oldDist)
        {
            DestRotation = DestRotationproto;;
            DestPosition = DestPositionproto;
            oldDist = dist;
        }
        if (debug) llOwnerSay("Located:" + (string) DestPosition + " rot:" + (string) DestRotation);
        
        vector   vPosRotOffset  = StopSeatedOffset * DestRotation; //-- rotate the offset to be relative to objects rotation
        DestPosition = DestPosition + vPosRotOffset; //-- get the region position of the rotated offset
        
        
        if (debug) llOwnerSay("Set Pos:" + (string) DestPosition + " rot:" + (string) DestRotation);
   
    }
}