Good way of doing Duels

I've been using just a regular Hashmap to do this but as I progressed into the plug-in I realized that something's we're just wrong. I'm asking for guidance.

 

What is wrong? We can't help you without knowing what's wrong.

 

https://bukkit.org/threads/read-me-first-how-to-make-a-plugin-development-thread.395844/

 

I suggest that you use a separate class for duels, and store those classes in a HashMap for players (I.e., you can retrieve someone's Duel through their player UUID, if they're currently in a duel).

If you need pointers on how to make and use separate classes for storing data, feel free to ask and I can give you the answer or some headers.

Example:

HashMap<UUID, Duel> duels = new HashMap<UUID, Duel);

Duel methods:

UUID getP1()
UUID getP2()
void start()
void finish(UUID winner)

 

additional :

set the UUID player1 and player 2's location to their own spawn.

the one who is dead lost then get the killer for winner