Initial commit: EssentialsC v1.1.0

src/main/java/cn/infstar/essentialsC/commands/VanishCommand.java

@@ -0,0 +1,55 @@
+package cn.infstar.essentialsC.commands;
+
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+public class VanishCommand extends BaseCommand {
+    
+    private static final Set<UUID> vanishedPlayers = new HashSet<>();
+    
+    public VanishCommand() {
+        super("essentialsc.command.vanish");
+    }
+    
+    @Override
+    protected boolean execute(@NotNull Player player, String[] args) {
+        UUID uuid = player.getUniqueId();
+        
+        if (vanishedPlayers.contains(uuid)) {
+            // 取消隐身
+            vanishedPlayers.remove(uuid);
+            showPlayerToAll(player);
+            player.sendMessage(getLang().getString("messages.vanish-disabled"));
+        } else {
+            // 开启隐身
+            vanishedPlayers.add(uuid);
+            hidePlayerFromAll(player);
+            player.sendMessage(getLang().getString("messages.vanish-enabled"));
+        }
+        return true;
+    }
+    
+    private void hidePlayerFromAll(Player player) {
+        for (Player online : player.getServer().getOnlinePlayers()) {
+            if (online != player) {
+                online.hidePlayer(plugin, player);
+            }
+        }
+    }
+    
+    private void showPlayerToAll(Player player) {
+        for (Player online : player.getServer().getOnlinePlayers()) {
+            if (online != player) {
+                online.showPlayer(plugin, player);
+            }
+        }
+    }
+    
+    public static boolean isVanished(Player player) {
+        return vanishedPlayers.contains(player.getUniqueId());
+    }
+}