一个里程碑（可以联机了）

src/main/java/uno/mloluyu/network/NetworkManager.java

@@ -1,18 +1,20 @@
 package uno.mloluyu.network;
 
 import com.badlogic.gdx.Gdx;
-import java.util.ArrayList;
-import java.util.List;
 
-/**
- * 网络管理器，协调服务器和客户端通信
- */
+import java.util.HashMap;
+import java.util.Map;
+
 public class NetworkManager {
     private static NetworkManager instance;
     private ConnectServer server;
     private ConnectClient client;
     private boolean isHost = false;
-    private List<String> playerPositions = new ArrayList<>();
+
+    private String localPlayerId;
+    private String localCharacter;
+    private final Map<String, float[]> playerPositions = new HashMap<>();
+    private final Map<String, String> playerCharacters = new HashMap<>();
 
     public static NetworkManager getInstance() {
         if (instance == null) {
@@ -21,67 +23,91 @@ public class NetworkManager {
         return instance;
     }
 
-    /**
-     * 创建房间（作为主机）
-     */
+    public void setLocalPlayerId(String id) {
+        this.localPlayerId = id;
+    }
+
+    public String getLocalPlayerId() {
+        return localPlayerId;
+    }
+
     public void createRoom() {
         isHost = true;
         server = new ConnectServer(11455);
         new Thread(server).start();
-        Gdx.app.log("Network", "房间创建成功，等待其他玩家加入...");
+        Gdx.app.log("Network", "房主模式：服务器已启动");
     }
 
-    /**
-     * 加入房间（作为客户端）
-     */
     public void joinRoom(String ip) {
         isHost = false;
         client = new ConnectClient(ip, 11455);
-        Gdx.app.log("Network", "正在加入房间: " + ip);
+        Gdx.app.log("Network", "客户端模式：连接到房主 " + ip);
     }
 
-    /**
-     * 发送玩家位置信息
-     */
     public void sendPosition(float x, float y) {
+        String msg = "POS:" + localPlayerId + "," + x + "," + y;
+        Gdx.app.log("Network", "发送位置消息: " + msg);
         if (isHost && server != null) {
-            // 主机直接广播位置
-            broadcastMessage("POS:" + x + "," + y);
+            server.broadcastToOthers(null, msg);
+            receiveMessage(msg); // 房主自己也处理
         } else if (client != null) {
-            // 客户端发送位置到服务器
-            client.sendMessage("POS:" + x + "," + y);
+            client.sendMessage(msg);
         }
     }
 
-    /**
-     * 广播消息（主机使用）
-     */
-    private void broadcastMessage(String message) {
-        // 这里需要实现广播逻辑
-        Gdx.app.log("Network", "广播消息: " + message);
+    public void sendCharacterSelection(String character) {
+        this.localCharacter = character;
+        String msg = "SELECT:" + localPlayerId + "," + character;
+        Gdx.app.log("Network", "发送角色选择消息: " + msg);
+        if (isHost && server != null) {
+            server.broadcastToOthers(null, msg);
+            receiveMessage(msg);
+        } else if (client != null) {
+            client.sendMessage(msg);
+        }
     }
 
-    /**
-     * 获取其他玩家位置
-     */
-    public List<String> getOtherPlayerPositions() {
+    public void receiveMessage(String message) {
+        Gdx.app.log("Network", "收到消息: " + message);
+
+        if (message.startsWith("POS:")) {
+            String[] parts = message.substring(4).split(",");
+            if (parts.length == 3) {
+                String playerId = parts[0];
+                try {
+                    float x = Float.parseFloat(parts[1]);
+                    float y = Float.parseFloat(parts[2]);
+                    playerPositions.put(playerId, new float[]{x, y});
+                    Gdx.app.log("Network", "位置更新: " + playerId + " -> " + x + "," + y);
+                } catch (NumberFormatException e) {
+                    Gdx.app.error("Network", "位置解析失败: " + message);
+                }
+            } else {
+                Gdx.app.error("Network", "位置消息格式错误: " + message);
+            }
+        } else if (message.startsWith("SELECT:")) {
+            String[] parts = message.substring(7).split(",");
+            if (parts.length == 2) {
+                String playerId = parts[0];
+                String character = parts[1];
+                playerCharacters.put(playerId, character);
+                Gdx.app.log("Network", "角色选择: " + playerId + " -> " + character);
+            } else {
+                Gdx.app.error("Network", "角色选择消息格式错误: " + message);
+            }
+        } else if (message.equals("READY")) {
+            Gdx.app.log("Network", "收到准备信号");
+        } else {
+            Gdx.app.log("Network", "未知消息类型: " + message);
+        }
+    }
+
+    public Map<String, float[]> getPlayerPositions() {
         return playerPositions;
     }
 
-    /**
-     * 断开连接
-     */
-    public void disconnect() {
-        if (server != null) {
-            server.dispose();
-            server = null;
-        }
-        if (client != null) {
-            client.disconnect();
-            client = null;
-        }
-        playerPositions.clear();
-        Gdx.app.log("Network", "网络连接已断开");
+    public Map<String, String> getPlayerCharacters() {
+        return playerCharacters;
     }
 
     public boolean isHost() {
@@ -92,15 +118,17 @@ public class NetworkManager {
         return server != null || client != null;
     }
 
-    public void updatePlayerPosition(String positionData) {
-        // 简单实现：直接存储位置数据
-        playerPositions.add(positionData);
-
-        // 限制位置列表大小，避免内存泄漏
-        if (playerPositions.size() > 10) {
-            playerPositions.remove(0);
+    public void disconnect() {
+        if (server != null) {
+            server.dispose();
+            server = null;
         }
-
-        Gdx.app.log("Network", "更新其他玩家位置: " + positionData);
+        if (client != null) {
+            client.disconnect();
+            client = null;
+        }
+        playerPositions.clear();
+        playerCharacters.clear();
+        Gdx.app.log("Network", "已断开连接");
     }
 }