--- title: 各物件的資料結構 tags: content, MCEA, technology --- # 資料結構 ```java 儲存實體：ArrayList <T extend Entity> 儲存玩家：ArrayList <ServerPlayerEntity> 儲存function：ImmutableHashMap 儲存scoreboard：HashSet <ScoreObjective> 儲存scoreboard的username：HashMap <String, HashMap <ScoreObjective, Score> > 儲存teams：HashSet (請注意：記分板的username與player-list的username不同，應當有所區分) ```