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+package me.stefvanschie;%0A%0Aimport java.util.HashMap;%0A%0Apublic enum GameState %7B%0A%0A%09In_Game(),%0A%09Full(),%0A%09Starting(),%0A%09Waiting();%0A%09%0A%09static HashMap%3CString, GameState%3E gameStates = new HashMap%3CString, GameState%3E();%0A%09%0A%09public static GameState getState(String arena) %7B%0A%09%09return gameStates.get(arena);%0A%09%7D%0A%09public static void setState(String arena, GameState state) %7B%0A%09%09gameStates.put(arena, state);%0A%09%7D%0A%7D%0A

Create GameState.java