Add more events

src/main/java/emu/grasscutter/plugin/api/ServerHook.java

@@ -0,0 +1,41 @@
+package emu.grasscutter.plugin.api;
+
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.server.game.GameServer;
+
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * Hooks into the {@link GameServer} class, adding convenient ways to do certain things.
+ */
+public final class ServerHook {
+    private static ServerHook instance;
+    private final GameServer server;
+
+    /**
+     * Gets the server hook instance.
+     * @return A {@link ServerHook} singleton.
+     */
+    public static ServerHook getInstance() {
+        return instance;
+    }
+
+    /**
+     * Hooks into a server.
+     * @param server The server to hook into.
+     */
+    public ServerHook(GameServer server) {
+        this.server = server;
+        
+        instance = this;
+    }
+
+    /**
+     * Gets all online players.
+     * @return Players connected to the server.
+     */
+    public List<GenshinPlayer> getOnlinePlayers() {
+        return new LinkedList<>(this.server.getPlayers().values());
+    }
+}