function with tag result used before definition, forcing rep

stock Float:GetXYInFrontOfPlayer(playerid, &Float:x, &Float:y, Float:distance)
{
    new Float:a;
    GetPlayerPos(playerid, x, y, a);
    if (IsPlayerInAnyVehicle(playerid))
        GetVehicleZAngle(GetPlayerVehicleID(playerid), a);
    else
        GetPlayerFacingAngle(playerid, a);
    x += (distance * floatsin(-a, degrees));
    y += (distance * floatcos(-a, degrees));
    return a;
}