Teleporting players on horses not working!

I made a custom server with a few of my friends. And on it I want helicopters so I started by making a horse with the name heli, invisibility and no gravity then I did this code inside a player interact event:

Code:

if(player.getInventory().getItemInMainHand().getType() == Material.LEVER && player.getInventory().getItemInMainHand().getItemMeta().getDisplayName().equalsIgnoreCase("Joystick"))
        {
            for(Entity e : player.getNearbyEntities(10, 10, 10))
            {
                if(e.getCustomName().equalsIgnoreCase("heli") && e.getType() == EntityType.HORSE)
                {
                    e.eject();
                    e.teleport(e.getLocation().add(0.0, 0.25, 0.0));
                    e.addPassenger(player);
                }
            }
        }

And it it should check if the player is holding a lever named "Joystick" and get all the horses nearby, That works but when I teleport it it doesn't work.
Any help would be great!

 

@MrTurtle2005
Currently, this does not check if the player was teleported. Add a check to see if the player teleported away from the helecopter. If so, teleport the heli to the player.

 

What do you mean?

 

@MrTurtle2005
When your plugin/a plugin tries to teleport the player, make sure the player has been ejected from the heli. Then, listen to PlayerTeleportEvent. If the player teleported more than 10 blocks away, then find a helicopter where the player was originally and teleport it to the new location.

 

@Zombie_Striker
I changed the code a bit but its still not working.

Code:

if(player.getInventory().getItemInMainHand().getType() == Material.LEVER && player.getInventory().getItemInMainHand().getItemMeta().getDisplayName().equalsIgnoreCase("Joystick"))
        {
            for(Entity e : player.getNearbyEntities(10, 10, 10))
            {
                if(e.getCustomName().equalsIgnoreCase("heli") && e.getType() == EntityType.HORSE)
                {
                    e.eject();
                    player.teleport(player.getLocation().add(0.0, 0.25, 0.0));
                    e.teleport(player);
                    e.addPassenger(player);
                }
            }
        }

 

@MrTurtle2005
Well, you're still only checking if there is a helicopter close to the player's current position. This is why you need to listen to PlayerTeleportEvent as well.

 

your teleporting the helicopter 0.25 units up from itself not 0.25 units up from the player
e.teleport(player.getLocation().add(0.0, 0.25, 0.0));

 

Ok that works! (Sorry for the late reply) But how would I make that go down?
I tried e.teleport(player.getLocation().subtract(0.0,0.25,0.0) but it doesn’t work any ideas?