Direction Detector

[Casdon12]

I just got back into SL resently and was wanting to get back into scripting and wanted to have an object to where if i walk in one direct with it having a certain radius it plays one sound and play a completely different sound in the opposite direction just as if I'm entering and exiting a door.

Somone please reply I really want to know how to do this.

[Xiija]

this is just basic direction based on zero rotation,

you can mod it to fit your needs?

...you would probably use a timer instead of a touch

event , mebbe check llGetAgentInfo for walking?

default{    state_entry()    {          }    touch_start(integer total_number)    {         vector angle =  llRot2Euler(llGetRot());         float z = angle.z;         if(z >= - PI_BY_TWO  && z <=  PI_BY_TWO )         {             llOwnerSay(" forward");
            llPlaySound("open",1.0);         }         else         {             llOwnerSay(" backward");
             llPlaySound("close",1.0);         }    }}

  eta: oops, dunno why i thought it was for an attatchment

[Miranda Umino]

I assume you are talking about an object on the ground  , not an attachement :

 

If you want the direction of the move of the avatar ( to know if the avatar goes closer or not)

You will need the velocity vector of the avatar :
you may use llDetectedVel ( if you use a sensor ) or llGetObjectDetails(key_avatar, [OBJECT_VEL]) ( if you don t use it)

f you want the direction of the avatar even when he turns on himselfwithout changing his position, use llDetectedRot or llGetObjectDetails(key_avatar, [OBJECT_ROT]) . You will need to divide by the rotation of your prim or your object . ( if you want the direction of the avatar relative to the object or prim)

 

If you want the direction of the avatar of his position ( to know if the avtar has crossed your door or not )

The same with llDetectedPos or llGetObjectDetails(key_avatar, [OBJECT_POS]) .

Substract the position of the prim or object

Divide eventually by the rotation o the object if you want a relative position

[Innula Zenovka]

This is how I would do the calculation, assuming you want to know your position relative to a conventional box prim -- that is, if you are facing side 2 of the prim it will say "In front" and if you are facing side 4 it will say "behind".

default{    state_entry()    {       // llSay(0, "Hello, Avatar!");    }    touch_start(integer total_number)    {         vector pos = (llDetectedPos(0)- llGetPos())/llGetRot();         if(pos.x>0){             llOwnerSay("In Front");        }        else {            llOwnerSay("Behind");        }    }}

 ETA -- more accurately, it says "In Front" or "Behind" according to where you are on the prim's x axis.