オフラインのプレイヤーは無効 観戦者として扱いにする

Author: Elic0de

src/main/java/com/github/elic0de/hungergames/game/HungerGame.java

@@ -211,6 +211,7 @@ public boolean checkTeamDead(GameUser user) {
         if (getUserTeam(user).isPresent()) {
             final Team team = getUserTeam(user).get();
             for (String name : team.getEntries()) {
+                if (Bukkit.getPlayer(name) == null) continue;
                 if (deadPlayers.contains(name)) continue;
                 return false;
             }