Throw item, stop player form picking it up, and despawn it

How would I go about allowing a player to throw an item, such as an ender eye (or any item that can be thrown in a similar manner), stop players from picking up that specific item, and then despawn it after a specified amount of time?

That was the longest question ever. I know how to use timers and such in Bukkit, so I dont really need to know how to use that portion.

Ah I think I figured out how to despawn an item now...

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

For stopping pickup, I would save the item's UUID to a list and then check if the list contains the picked up item's UUID, if so, cancel the event.

 

Ah. So I'll need to create a listener, PlayerPickupEvent (dunno if thats the exact event), and then create an if statement that checks if the items UDID is in the ArrayList, and event.cancel()?

Also, how do I cancel an enderpearl's teleport? I think thats one of the other main things I need to know.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Simplest is to check the PlayerInteractEvent and cancel the event if they are using the right mouse button and the ender pearl is selected.

 

Code:java

 
@EventHandler
public void onPlayerInteract(PlayerInteractEvent e){
Player p = e.getPlayer();
Material clickedItem = e.getMaterial();
if(clickedItem == Material.ENDER_PEARL) {
if(!p.hasPermission("test.test"){
e.setCancelled(true);
p.sendMessage(ChatColor.DARK_RED + "You do not have Permission to teleport with Ender Pearls :)");
} else if(p.hasPermission("test.test"){
e.setCancelled(false);
}
}
}
 

That works for me

It basically cancels the teleportation and gives the item back to you

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Thanks! But I didn't actually want to fully cancel throwing the ender pearl. I just want to cancel the teleporting portion of it. I can't quite find anything that allows that...

 

I dont really think thats Possible

 

danggg. Is there any way I can throw an item and make it mimic the "throwing" qualities of an enderpearl?

 

You can listen for PlayerTeleportEvent, and check the cause, and cancel it if it's from an ender pearl

 

Yes it is . ProjectileHitEvent, check if the entity is an ender pearl, check if the shooter is a player, check if the player has a specific permission, if not, cancel the event. (Kind of hard to write code on an iPad...)

 

Ok

 

Thanks so much guys, I'll try it!

There doesn't appear to be a way to cancel the event. My parameter is (ProjectileHitEvent event), and then I type "event." (expecting to see a cancel method, but none appears). I'll take a look at the JavaDoc and see if there is anything there.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

You can't cancel projectile hit event. Just cancel teleport event.

if(teleport cause == TeleportCause.ENDER_PEARL)

 

Will try it. Thank you.