[Tigerkiller]

Hello Community,
im searching for an Solution:

How can i Create a Object behind a Dune ?
So its wayne if i stay to North or S ?

I tryed it abit but failed
can someone help me ?
It's for a Lazeret Script

pawn Код:

stock CreateLazeret(playerid, Float:vehiclelength)
{
    new Float:x,Float:y,Float:z,Float:a;
    new vID = GetPlayerVehicleID(playerid);
    GetVehiclePos(vID, x, y, z);
    GetPlayerFacingAngle(vID, a);
    x += (vehiclelength* floatsin(-a, degrees));
    y += (vehiclelength* floatcos(-a, degrees));
    Object = CreateDynamicObject(1997, x, y-5.5, z-2.20, 0.0, 0.0, a, 0, 0);
    //return IsPlayerInRangeOfPoint(playerid,radius,x,y,z);
    return 1;
}