修复peek状态下的观察者传送

由于folia没有teleport event，所以采用拦截发包

Author: MineSunshineone

pom.xml

@@ -6,10 +6,10 @@
 
     <groupId>ict.minesunshineone</groupId>
     <artifactId>peek</artifactId>
-    <version>2.8</version>
+    <version>2.9</version>
 
     <properties>
-        <maven.compiler.release>21</maven.compiler.release>
+        <maven.compiler.release>17</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -23,6 +23,10 @@
             <id>papermc</id>
             <url>https://repo.papermc.io/repository/maven-public/</url>
         </repository>
+        <repository>
+            <id>dmulloy2-repo</id>
+            <url>https://repo.dmulloy2.net/repository/public/</url>
+        </repository> 
     </repositories>
 
     <dependencies>
@@ -44,7 +48,12 @@
             <version>2.11.6</version>
             <scope>provided</scope>
         </dependency>
-
+        <dependency>
+            <groupId>com.comphenix.protocol</groupId>
+            <artifactId>ProtocolLib</artifactId>
+            <version>5.3.0</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/ict/minesunshineone/peek/PeekPlugin.java

@@ -13,6 +13,7 @@
 import ict.minesunshineone.peek.handler.PeekTargetHandler;
 import ict.minesunshineone.peek.listener.PeekInteractionListener;
 import ict.minesunshineone.peek.listener.PeekListener;
+import ict.minesunshineone.peek.listener.PeekPacketListener;
 import ict.minesunshineone.peek.manager.CooldownManager;
 import ict.minesunshineone.peek.manager.PrivacyManager;
 import ict.minesunshineone.peek.manager.StateManager;
@@ -32,6 +33,7 @@ public class PeekPlugin extends JavaPlugin {
     private CooldownManager cooldownManager;
     private PrivacyManager privacyManager;
     private StatisticsManager statisticsManager;
+    private PeekPacketListener packetListener;
 
     @Override
     public void onEnable() {
@@ -48,6 +50,12 @@ public void onEnable() {
         this.privacyManager = new PrivacyManager(this);
         this.statisticsManager = new StatisticsManager(this);
 
+        // 如果服务器有ProtocolLib，初始化数据包监听器
+        if (getServer().getPluginManager().getPlugin("ProtocolLib") != null) {
+            this.packetListener = new PeekPacketListener(this);
+            getLogger().info("已启用ProtocolLib支持！");
+        }
+
         // 注册命令
         PeekCommand peekCommand = new PeekCommand(this);
         var cmd = getCommand("peek");
@@ -89,6 +97,10 @@ public void onDisable() {
             privacyManager.savePrivacyStates();
         }
 
+        if (packetListener != null) {
+            packetListener.unregisterPacketListeners();
+        }
+
         getLogger().info("Peek插件已禁用！");
     }
 

src/main/java/ict/minesunshineone/peek/listener/PeekPacketListener.java

@@ -0,0 +1,45 @@
+package ict.minesunshineone.peek.listener;
+
+import org.bukkit.GameMode;
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolManager;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketEvent;
+
+import ict.minesunshineone.peek.PeekPlugin;
+
+public class PeekPacketListener {
+
+    private final PeekPlugin plugin;
+    private final ProtocolManager protocolManager;
+
+    public PeekPacketListener(PeekPlugin plugin) {
+        this.plugin = plugin;
+        this.protocolManager = ProtocolLibrary.getProtocolManager();
+        registerPacketListeners();
+    }
+
+    private void registerPacketListeners() {
+        // 监听观察者模式传送数据包
+        protocolManager.addPacketListener(new PacketAdapter(plugin, PacketType.Play.Client.SPECTATE) {
+            @Override
+            public void onPacketReceiving(PacketEvent event) {
+                Player player = event.getPlayer();
+
+                // 检查玩家是否在peek状态
+                if (((PeekPlugin) plugin).getStateHandler().getActivePeeks().containsKey(player.getUniqueId())
+                        && player.getGameMode() == GameMode.SPECTATOR) {
+                    // 取消数据包，阻止传送
+                    event.setCancelled(true);
+                }
+            }
+        });
+    }
+
+    public void unregisterPacketListeners() {
+        protocolManager.removePacketListeners(plugin);
+    }
+}

src/main/resources/plugin.yml

@@ -6,7 +6,7 @@ authors: [MineSunshineOne]
 description: 一个允许玩家观察其他玩家的插件
 website: https://github.com/MineSunshineOne/Peek
 folia-supported: true
-softdepend: [PlaceholderAPI] 
+softdepend: [PlaceholderAPI, ProtocolLib]
 
 commands:
   peek: