/**
     *
     * Manage PlayerToggleFlightEvent for DoubleJumpListener
     *
     * @param e (Event)
     */

    @EventHandler
    public void onToggleFly(PlayerToggleFlightEvent e) {
        Player p = e.getPlayer();
        if(p.hasMetadata("spec")) return;
        if (p.hasMetadata("pvp") || p.hasMetadata("loading")) {
            e.setCancelled(true);
            return;
        }
        if (p.getGameMode() == GameMode.SURVIVAL) {
            if(p.hasPermission("lobby.doublejump")) {
                if(YourProfile.instance.getSettings(p, Settings.DOUBLE_JUMP)) {
                    e.setCancelled(true);
                    p.setAllowFlight(false);
                    p.setFlying(false);
                    p.setVelocity(p.getLocation().getDirection().multiply(1).add(new Vector(0, 1, 0)));
                    EVPD.getSpigotCore().playSound().defined(p, Sound.ENDERDRAGON_WINGS);
                }
            } else {
                e.setCancelled(true);
                p.setAllowFlight(false);
            }
        }
    }

    /**
     *
     * Handle move event for accepting player for next double jump
     *
     * @param e (Event)
     */

    @EventHandler
    public void onMove(PlayerMoveEvent e) {
        Player p = e.getPlayer();
        if(p.hasMetadata("spec")) return;
        if(!p.hasPermission("lobby.doublejump")) return;
        if (checkDoubleJumpConditions(p)) p.setAllowFlight(true);
    }

    /**
     *
     * Check conditions for accepting player for next double jump
     *
     * @param p (Player object)
     */

    private boolean checkDoubleJumpConditions(Player p) {
        return (p.getGameMode() == GameMode.SURVIVAL
                && (p.getLocation().add(0.0D, -1.0D, 0.0D).getBlock().getType() != Material.AIR)
                && !p.hasMetadata("pvp") && !p.hasMetadata("loading")
                && YourProfile.instance.getSettings(p, Settings.DOUBLE_JUMP));
    }