完善联机框架

src/main/java/com/example/catchTheLetters/entity/GameRoom.java

@@ -2,6 +2,7 @@ package com.example.catchTheLetters.entity;
 
 import cn.hutool.core.collection.ConcurrentHashSet;
 import com.example.catchTheLetters.enums.RoomStatus;
+import com.example.catchTheLetters.model.vo.Letter;
 import lombok.Data;
 import org.springframework.web.socket.WebSocketSession;
 
@@ -23,6 +24,8 @@ public class GameRoom {
     private WebSocketSession host;
     // 单词 : 目前在拼这个单词的玩家数
     private final Map<String, Integer> words = new ConcurrentSkipListMap<>();
+    // 字母id : 字母
+    private final Map<Long, Letter> letters = new ConcurrentHashMap<>();
 
     public GameRoom(WebSocketSession host, PlayerInGame player) {
         this.roomId = UUID.randomUUID().getLeastSignificantBits();

src/main/java/com/example/catchTheLetters/entity/LetterAction.java

@@ -16,4 +16,19 @@ public class LetterAction implements Serializable {
     private LetterActionType type;
     private Letter letter;
     private String userId;
+    private long letterId;
+
+    public LetterAction() {
+    }
+
+    public LetterAction(LetterActionType type, Letter letter, String userId) {
+        this.type = type;
+        this.letter = letter;
+        this.userId = userId;
+    }
+
+    public LetterAction(LetterActionType type, Letter letter) {
+        this.type = type;
+        this.letter = letter;
+    }
 }

src/main/java/com/example/catchTheLetters/entity/PlayerInGame.java

@@ -26,4 +26,20 @@ public class PlayerInGame implements Serializable {
         this.currentWord = "";
         this.currentAnswer = "";
     }
+
+    public void addScore(int score) {
+        this.score += score;
+    }
+
+    public void reduceHealth(int health) {
+        this.health = Math.max(0, this.health - health);
+    }
+
+    public void setCurrentAnswer(String letter) {
+        this.currentAnswer += letter;
+    }
+
+    public void clearCurrentAnswer() {
+        this.currentAnswer = "";
+    }
 }

src/main/java/com/example/catchTheLetters/entity/RoomAction.java

@@ -13,4 +13,28 @@ public class RoomAction implements Serializable {
     // 房主踢出玩家时或被邀请的玩家ID
     private String userID;
     private long roomID;
+
+    public RoomAction() {
+    }
+
+    public RoomAction(RoomActionType type, String token, String userID, long roomID) {
+        this.type = type;
+        this.token = token;
+        this.userID = userID;
+        this.roomID = roomID;
+    }
+
+    public RoomAction(RoomActionType type, String userID) {
+        this.type = type;
+        this.userID = userID;
+    }
+
+    public RoomAction(RoomActionType type, long roomID) {
+        this.type = type;
+        this.roomID = roomID;
+    }
+
+    public RoomAction(RoomActionType type) {
+        this.type = type;
+    }
 }

src/main/java/com/example/catchTheLetters/enums/MessageType.java

@@ -11,5 +11,7 @@ public enum MessageType {
     LETTER,
     SCORE,
     HEALTH,
-    ERROR
+    ERROR,
+    LOGIN,
+    LOGOUT
 }

src/main/java/com/example/catchTheLetters/enums/RoomActionType.java

@@ -11,5 +11,7 @@ public enum RoomActionType {
     KICK,
     LEAVE,
     START,
-    INVITE
+    CANCEL_START,
+    INVITE,
+    END
 }

src/main/java/com/example/catchTheLetters/handler/WebSocketHandler.java

@@ -1,7 +1,10 @@
 package com.example.catchTheLetters.handler;
 
 import com.example.catchTheLetters.entity.GameMessage;
+import com.example.catchTheLetters.entity.LetterAction;
 import com.example.catchTheLetters.entity.PlayerInput;
+import com.example.catchTheLetters.entity.RoomAction;
+import com.example.catchTheLetters.enums.LetterActionType;
 import com.example.catchTheLetters.enums.MessageType;
 import com.example.catchTheLetters.service.RoomService;
 import com.fasterxml.jackson.core.JsonProcessingException;
@@ -13,7 +16,7 @@ import org.springframework.web.socket.TextMessage;
 import org.springframework.web.socket.WebSocketSession;
 import org.springframework.web.socket.handler.TextWebSocketHandler;
 
-import java.io.IOException;
+import java.util.Objects;
 
 /**
  * WebSocket 处理器
@@ -46,15 +49,49 @@ public class WebSocketHandler extends TextWebSocketHandler {
                 break;
             case ROOM:
                 // 处理房间消息
+                var roomData = (RoomAction) gameMessage.getData();
+                switch (roomData.getType()) {
+                    case CREATE:
+                        roomService.createRoom(session, roomData.getToken());
+                        break;
+                    case JOIN:
+                        roomService.addPlayer(gameMessage.getRoomId(), session, roomData.getToken());
+                        break;
+                    case LEAVE:
+                        roomService.removePlayer(gameMessage.getRoomId(), session);
+                        break;
+                    case KICK:
+                        roomService.kickPlayer(gameMessage.getRoomId(), session, roomData.getUserID());
+                        break;
+                    case START:
+                        roomService.startGame(gameMessage.getRoomId(), session);
+                        break;
+                    case CANCEL_START:
+                        roomService.cancelStartGame(gameMessage.getRoomId(), session);
+                        break;
+                    case END:
+                        roomService.endGame(gameMessage.getRoomId());
+                        break;
+                    default:
+                        roomService.sendMessage(session, new GameMessage<>(MessageType.ERROR, "未知的房间操作"));
+                }
                 break;
             case LETTER:
                 // 处理字母消息
+                var letterData = (LetterAction) gameMessage.getData();
+                if (Objects.requireNonNull(letterData.getType()) == LetterActionType.GET)
+                    // 获取字母
+                    roomService.getLetter(gameMessage.getRoomId(), session, letterData.getLetterId());
+                else
+                    roomService.sendMessage(session, new GameMessage<>(MessageType.ERROR, "未知的字母操作"));
                 break;
-            case SCORE:
+            case LOGIN:
-                // 处理分数消息
+                // 处理登录消息
+                roomService.connect(session, (String) gameMessage.getData());
                 break;
-            case HEALTH:
+            case LOGOUT:
-                // 处理生命值消息
+                // 处理登出消息
+                roomService.disconnect((String) gameMessage.getData());
                 break;
             default:
                 roomService.sendMessage(session, new GameMessage<>(MessageType.ERROR, "未知的消息类型"));

src/main/java/com/example/catchTheLetters/model/vo/Letter.java

@@ -9,6 +9,8 @@ import lombok.Data;
  */
 @Data
 public class Letter {
+    private long id;
+
     // 字母值，如果是10则是加血
     private String letterVal;
 
@@ -18,12 +20,14 @@ public class Letter {
     // 字母的x坐标，0-1之间
     private float x;
 
-    public Letter(String letterVal, float x) {
+    public Letter(long id, String letterVal, float x) {
+        this.id = id;
         this.letterVal = letterVal;
         this.x = x;
     }
 
-    public Letter(String letterVal, float x, float speed) {
+    public Letter(long id, String letterVal, float x, float speed) {
+        this.id = id;
         this.letterVal = letterVal;
         this.x = x;
         this.speed = speed;

src/main/java/com/example/catchTheLetters/service/RoomService.java

@@ -101,4 +101,12 @@ public interface RoomService {
      * @param <T> 消息类型
      */
     <T> void sendMessage(WebSocketSession session, T message);
+
+    /**
+     * 玩家获得了字母
+     * @param roomId 房间号
+     * @param session WebSocket 会话
+     * @param letterId 字母ID
+     */
+    void getLetter(long roomId, WebSocketSession session, long letterId);
 }

src/main/java/com/example/catchTheLetters/service/impl/RoomServiceImpl.java

@@ -1,6 +1,7 @@
 package com.example.catchTheLetters.service.impl;
 
 import com.example.catchTheLetters.entity.*;
+import com.example.catchTheLetters.enums.LetterActionType;
 import com.example.catchTheLetters.enums.MessageType;
 import com.example.catchTheLetters.enums.RoomActionType;
 import com.example.catchTheLetters.enums.RoomStatus;
@@ -17,6 +18,7 @@ import org.springframework.web.socket.WebSocketSession;
 import java.io.IOException;
 import java.util.Map;
 import java.util.Random;
+import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
 
 /**
@@ -60,23 +62,30 @@ public class RoomServiceImpl implements RoomService {
         }
         players.put(session, player);
 
-        // TODO 发送消息通知其他玩家有人加入了
+        // 发送消息通知其他玩家有人加入了
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.JOIN, player.getUserId()));
+        for (var playerEntry : players.entrySet())
+            if (playerEntry.getKey() != session)
+                sendMessage(playerEntry.getKey(), message);
     }
 
     @Override
     public void removePlayer(long roomId, WebSocketSession session) {
         var room = rooms.get(roomId);
         var players = room.getPlayers();
-        players.remove(session);
+        var removed = players.remove(session);
         // 如果是房主退出，更换房主，否则关闭房间
         if (session == room.getHost()) {
-            if (!players.isEmpty()) {
+            if (!players.isEmpty())
                 room.setHost(players.keySet().iterator().next());
-            } else {
+            else
                 rooms.remove(roomId);
-            }
         }
-        // TODO 发送消息通知其他玩家有人退出了
+        // 发送消息通知其他玩家有人退出了
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.LEAVE, removed.getUserId()));
+        for (var player : players.keySet())
+            if (player != session)
+                sendMessage(player, message);
     }
 
     @Override
@@ -88,13 +97,15 @@ public class RoomServiceImpl implements RoomService {
             return;
         }
         var players = room.getPlayers();
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.KICK, playerID));
+        WebSocketSession aimSession = null;
         for (var player : players.entrySet()) {
-            if (player.getValue().getUserId().equals(playerID)) {
+            if (player.getValue().getUserId().equals(playerID))
-                players.remove(player.getKey());
+                aimSession = player.getKey();
-                // TODO 发送消息通知有玩家被踢出了
+            // 发送消息通知有玩家被踢出了
-                break;
+            sendMessage(player.getKey(), message);
-            }
         }
+        players.remove(aimSession);
     }
 
     @Override
@@ -103,10 +114,17 @@ public class RoomServiceImpl implements RoomService {
         var players = room.getPlayers();
         var readyPlayers = room.getReadyPlayers();
         readyPlayers.add(session);
-        // TODO 发送消息通知其他玩家有人准备好了
+        // 发送消息通知其他玩家有人准备好了
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.START, session.getId()));
+        for (var player : players.keySet())
+            if (player != session)
+                sendMessage(player, message);
         // 如果所有玩家都准备好了，开始游戏
         if (readyPlayers.size() == room.getPlayers().size()) {
-            // TODO 发送消息通知所有玩家游戏开始
+            // 发送消息通知所有玩家游戏开始
+            var startMessage = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.START, session.getId()));
+            for (var player : players.keySet())
+                sendMessage(player, startMessage);
             readyPlayers.clear();
             room.setStatus(RoomStatus.PLAYING);
             gameLogic(room);
@@ -118,14 +136,21 @@ public class RoomServiceImpl implements RoomService {
         var room = rooms.get(roomId);
         var readyPlayers = room.getReadyPlayers();
         readyPlayers.remove(session);
-        // TODO 发送消息通知其他玩家有人取消准备
+        // 发送消息通知其他玩家有人取消准备
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.CANCEL_START, session.getId()));
+        for (var player : room.getPlayers().keySet())
+            if (player != session)
+                sendMessage(player, message);
     }
 
     @Override
     public void endGame(long roomId) {
         var room = rooms.get(roomId);
         room.setStatus(RoomStatus.WAITING);
-        // TODO 发送消息通知所有玩家游戏结束
+        // 发送消息通知所有玩家游戏结束
+        var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.END));
+        for (var player : room.getPlayers().keySet())
+            sendMessage(player, message);
     }
 
     @Override
@@ -133,8 +158,10 @@ public class RoomServiceImpl implements RoomService {
         var message = new GameMessage<>(MessageType.INPUT, input);
         var room = rooms.get(roomId);
         var players = room.getPlayers();
+        // 发送消息通知其他玩家有人输入了
         for (var player : players.keySet())
-            if (player != session) sendMessage(player, message);
+            if (player != session)
+                sendMessage(player, message);
     }
 
     @Override
@@ -143,6 +170,8 @@ public class RoomServiceImpl implements RoomService {
         var player = new PlayerInGame(user.getId(), user);
         var room = new GameRoom(session, player);
         rooms.put(room.getRoomId(), room);
+        // 发送消息通知玩家创建房间成功
+        sendMessage(session, new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.CREATE, room.getRoomId())));
     }
 
     @Override
@@ -150,8 +179,9 @@ public class RoomServiceImpl implements RoomService {
         // 如果房间内还有玩家，全部移除
         var room = rooms.get(roomId);
         var players = room.getPlayers();
-        for (var player : players.keySet()) {
+        for (var player : players.entrySet()) {
-            // TODO 发送消息通知所有玩家房间已解散
+            // 发送消息通知所有玩家房间已解散
+            sendMessage(player.getKey(), new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.KICK, player.getValue().getUserId())));
         }
         rooms.remove(roomId);
     }
@@ -203,6 +233,24 @@ public class RoomServiceImpl implements RoomService {
         }
     }
 
+    @Override
+    public void getLetter(long roomId, WebSocketSession session, long letterId) {
+        var room = rooms.get(roomId);
+        var letter = room.getLetters().get(letterId);
+        // 如果没有这个字母，代表被其他玩家拿走了
+        if (letter == null) return;
+
+        var players = room.getPlayers();
+        var player = players.get(session);
+        // 发送消息通知其他玩家有人获得了字母
+        var message = new GameMessage<>(MessageType.LETTER, new LetterAction(LetterActionType.GET, letter, player.getUserId()));
+        for (var playerEntry : players.entrySet())
+            sendMessage(playerEntry.getKey(), message);
+        // TODO 字母校验和加分、改变血量逻辑
+        //  玩家接取字母时，向玩家当前答案中添加字母，如果单词拼完，给玩家加5*word.length的分和10滴血，如果单词拼错，每秒扣5滴血，如果玩家血量为0，则死亡
+        //  如果接取的是回血爱心，给玩家加10滴血
+    }
+
     private void generateLetter(GameRoom room) {
         var players = room.getPlayers();
         var words = room.getWords();
@@ -211,23 +259,25 @@ public class RoomServiceImpl implements RoomService {
         if (words.size() <= 5) getWords(words);
 
         Letter letter;
+        var id = UUID.randomUUID().getLeastSignificantBits();
 
         var val = random.nextInt(100);
 
         // 在80%概率当前单词的字母中随机选择一个，19%随机生成一个字母，1%是回血爱心。选定后随机赋值2f到6f的下落速度
         if (val == 0)
             // 回血爱心
-            letter = new Letter("10", random.nextFloat(1), random.nextFloat(2, 6));
+            letter = new Letter(id, "10", random.nextFloat(1), random.nextFloat(2, 6));
         else if (val <= 81)
             // 从当前单词中随机选择一个字母
-            letter = new Letter(words.keySet().toArray()[random.nextInt(words.size())].toString(), random.nextFloat(1), random.nextFloat(2, 6));
+            letter = new Letter(id, words.keySet().toArray()[random.nextInt(words.size())].toString(), random.nextFloat(1), random.nextFloat(2, 6));
         else
             // 随机生成一个字母
-            letter = new Letter(String.valueOf((char) (random.nextInt(26) + 'a')), random.nextFloat(1), random.nextFloat(2, 6));
+            letter = new Letter(id, String.valueOf((char) (random.nextInt(26) + 'a')), random.nextFloat(1), random.nextFloat(2, 6));
 
+        room.getLetters().put(id, letter);
         // 给所有玩家发送字母
         for (var player : players.keySet())
-            sendMessage(player, new GameMessage<>(MessageType.LETTER, letter));
+            sendMessage(player, new GameMessage<>(MessageType.LETTER, new LetterAction(LetterActionType.CREATE, letter)));
     }
 
     private void getWords(Map<String, Integer> words) {
@@ -236,6 +286,9 @@ public class RoomServiceImpl implements RoomService {
 
     private void gameLogic(GameRoom room) {
         getWords(room.getWords());
-        // TODO 从300秒开始倒计时，每秒调用一次generateLetter方法，如果时间到了，调用endGame方法，如果当前单词被某玩家拼完，Map对应单词的value++，如果value>=玩家数（有可能中途有人退出），目前单词出队列，继续下一个单词
+        // TODO 从300秒开始倒计时，每秒调用一次generateLetter方法，如果时间到了，调用endGame方法
+        //  如果当前单词被某玩家拼完，Map对应单词的value++，如果value>=玩家数（有可能中途有人退出），目前单词出队列，继续下一个单词
+        //  游戏结束后需要向玩家发送排行榜数据（用户ID、分数、排名）
+        //  最大的问题：丢包后如何处理？比如其他玩家按下按键后，自己没有接收到松开消息，导致其他玩家在画面中一直持续运动，网络连接稳定后，不同C端的玩家位置不一致
     }
 }

src/main/java/com/example/catchTheLetters/utils/GameMessageDeserializer.java

@@ -30,6 +30,9 @@ public class GameMessageDeserializer extends JsonDeserializer<GameMessage<?>> {
             case "LETTER" -> new GameMessage<>(MessageType.LETTER, objectMapper.treeToValue(data, LetterAction.class));
             case "SCORE" -> new GameMessage<>(MessageType.SCORE, objectMapper.treeToValue(data, ScoreAction.class));
             case "HEALTH" -> new GameMessage<>(MessageType.HEALTH, objectMapper.treeToValue(data, HealthAction.class));
+            case "ERROR" -> new GameMessage<>(MessageType.ERROR, objectMapper.treeToValue(data, String.class));
+            case "LOGIN" -> new GameMessage<>(MessageType.LOGIN, objectMapper.treeToValue(data, String.class));
+            case "LOGOUT" -> new GameMessage<>(MessageType.LOGOUT, objectMapper.treeToValue(data, String.class));
             default -> throw new IllegalArgumentException("未知的消息类型");
         };
     }