how to give an item as soon a he joins when the player is offline

[TheRPGAdventurer]

Hi everyone, i want a simple question, WHen a dragon dies there are some changes, now instead of dropping their dragon essence (used to revive them) and get burned to dust, how about theyre given in the players inventory with:

boolean flag = entityplayer.inventory.addItemStackToInventory(amulet);

 

But what if the player is offline when the dragon dies? what method should i put when the player goes online and gives the item to it? does it happen on already when joining while calling this method, or i need to call an event to check whether the player is there and just give it to him/her.

[Cadiboo]

You could save a the player’s dragon died in a file (as a list of players and dragons) and then periodically check that file and act on it if the player is online

[TheRPGAdventurer]

ok what method should i call to get the player online boolean, wdym saving it on a file how do i do that?  aslo what kind of file? Is there an example?

[TheRPGAdventurer]

where would i find such examples?