307 lines
13 KiB
Java
307 lines
13 KiB
Java
package com.example.catchTheLetters.service.impl;
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import com.example.catchTheLetters.entity.*;
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import com.example.catchTheLetters.enums.*;
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import com.example.catchTheLetters.model.vo.Letter;
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import com.example.catchTheLetters.service.AuthService;
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import com.example.catchTheLetters.service.RoomService;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import jakarta.annotation.Resource;
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import org.springframework.data.mongodb.core.MongoTemplate;
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import org.springframework.stereotype.Service;
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import org.springframework.web.socket.TextMessage;
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import org.springframework.web.socket.WebSocketSession;
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import java.io.IOException;
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import java.util.Map;
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import java.util.Random;
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import java.util.UUID;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* 房间服务实现类
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*
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* @author spyn
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*/
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@Service
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public class RoomServiceImpl implements RoomService {
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// 房间列表
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private final ConcurrentHashMap<Long, GameRoom> rooms = new ConcurrentHashMap<>();
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// 玩家列表
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private final ConcurrentHashMap<String, WebSocketSession> playerInGame = new ConcurrentHashMap<>();
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private final ObjectMapper objectMapper = new ObjectMapper();
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private final Random random = new Random();
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@Resource
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private MongoTemplate mongoTemplate;
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@Resource
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private AuthService authService;
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@Override
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public void addPlayer(long roomId, WebSocketSession session, String token) {
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var room = rooms.get(roomId);
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var players = room.getPlayers();
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var user = authService.verify(token);
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var player = new PlayerInGame(user.getId(), user);
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// 如果玩家已经在房间中，更新他们的WebSocketSession
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for (var entry : players.entrySet()) {
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if (entry.getValue().getUserId().equals(user.getId())) {
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player = entry.getValue();
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players.remove(entry.getKey());
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break;
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}
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}
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players.put(session, player);
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// 发送消息通知其他玩家有人加入了
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.JOIN, player.getUserId()));
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for (var playerEntry : players.entrySet())
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if (playerEntry.getKey() != session)
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sendMessage(playerEntry.getKey(), message);
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}
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@Override
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public void removePlayer(long roomId, WebSocketSession session) {
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var room = rooms.get(roomId);
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var players = room.getPlayers();
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var removed = players.remove(session);
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// 如果是房主退出，更换房主，否则关闭房间
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if (session == room.getHost()) {
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if (!players.isEmpty())
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room.setHost(players.keySet().iterator().next());
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else
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rooms.remove(roomId);
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}
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// 发送消息通知其他玩家有人退出了
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.LEAVE, removed.getUserId()));
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for (var player : players.keySet())
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if (player != session)
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sendMessage(player, message);
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}
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@Override
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public void kickPlayer(long roomId, WebSocketSession session, String playerID) {
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var room = rooms.get(roomId);
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// 如果不是房主，返回错误信息
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if (session != room.getHost()) {
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sendMessage(session, new GameMessage<>(MessageType.ERROR, "你不是房主"));
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return;
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}
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var players = room.getPlayers();
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.KICK, playerID));
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WebSocketSession aimSession = null;
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for (var player : players.entrySet()) {
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if (player.getValue().getUserId().equals(playerID))
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aimSession = player.getKey();
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// 发送消息通知有玩家被踢出了
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sendMessage(player.getKey(), message);
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}
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players.remove(aimSession);
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}
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@Override
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public void startGame(long roomId, WebSocketSession session) {
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var room = rooms.get(roomId);
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var players = room.getPlayers();
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var readyPlayers = room.getReadyPlayers();
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readyPlayers.add(session);
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// 发送消息通知其他玩家有人准备好了
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.START, session.getId()));
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for (var player : players.keySet())
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if (player != session)
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sendMessage(player, message);
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// 如果所有玩家都准备好了，开始游戏
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if (readyPlayers.size() == room.getPlayers().size()) {
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// 发送消息通知所有玩家游戏开始
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var startMessage = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.START, session.getId()));
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for (var player : players.keySet())
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sendMessage(player, startMessage);
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readyPlayers.clear();
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room.setStatus(RoomStatus.PLAYING);
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gameLogic(room);
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}
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}
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@Override
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public void cancelStartGame(long roomId, WebSocketSession session) {
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var room = rooms.get(roomId);
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var readyPlayers = room.getReadyPlayers();
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readyPlayers.remove(session);
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// 发送消息通知其他玩家有人取消准备
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.CANCEL_START, session.getId()));
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for (var player : room.getPlayers().keySet())
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if (player != session)
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sendMessage(player, message);
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}
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@Override
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public void handleInput(long roomId, WebSocketSession session, PlayerInput input) {
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var message = new GameMessage<>(MessageType.INPUT, input);
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var room = rooms.get(roomId);
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var players = room.getPlayers();
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if (input.getKey() == InputKeyType.SPACE) {
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var player = players.get(session);
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// 如果是空格，按下则记录，松开则获取记录时间并判断是否有1秒，有则对玩家发送清空答案的消息，并清空答案
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if (input.getState() == InputState.PRESS)
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player.setDropTime(System.currentTimeMillis());
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else {
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var dropTime = player.getDropTime();
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if (System.currentTimeMillis() - dropTime >= 1000) {
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player.clearCurrentAnswer();
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sendMessage(session, new GameMessage<>(MessageType.LETTER, new LetterAction(LetterActionType.CLEAR)));
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}
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}
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} else {
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// 如果是移动，发送消息通知其他玩家有人输入了
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for (var player : players.keySet())
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if (player != session)
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sendMessage(player, message);
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}
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}
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@Override
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public void createRoom(WebSocketSession session, String token) {
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var user = authService.verify(token);
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var player = new PlayerInGame(user.getId(), user);
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var room = new GameRoom(session, player);
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rooms.put(room.getRoomId(), room);
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// 发送消息通知玩家创建房间成功
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sendMessage(session, new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.CREATE, room.getRoomId())));
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}
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@Override
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public void removeRoom(long roomId) {
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// 如果房间内还有玩家，全部移除
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var room = rooms.get(roomId);
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var players = room.getPlayers();
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for (var player : players.entrySet()) {
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// 发送消息通知所有玩家房间已解散
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sendMessage(player.getKey(), new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.KICK, player.getValue().getUserId())));
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}
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rooms.remove(roomId);
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}
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@Override
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public void invitePlayer(long roomId, WebSocketSession session, String playerID) {
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var roomAction = new RoomAction();
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roomAction.setType(RoomActionType.INVITE);
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roomAction.setRoomID(roomId);
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roomAction.setUserID(playerID);
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var aimSession = playerInGame.get(playerID);
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// 如果玩家在线，发送邀请消息
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if (aimSession != null) sendMessage(session, new GameMessage<>(MessageType.ROOM, roomAction));
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else sendMessage(session, new GameMessage<>(MessageType.ERROR, "玩家不在线"));
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}
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@Override
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public void connect(WebSocketSession session, String token) {
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var player = authService.verify(token);
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playerInGame.put(player.getId(), session);
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}
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@Override
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public void disconnect(String token) {
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var player = authService.verify(token);
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var session = playerInGame.remove(player.getId());
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try {
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session.close();
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} catch (IOException e) {
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throw new RuntimeException("关闭WebSocket会话失败", e);
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}
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}
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@Override
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public <T> void sendMessage(WebSocketSession session, T message) {
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String json;
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if (!(message instanceof String)) {
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try {
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json = objectMapper.writeValueAsString(message);
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} catch (Exception e) {
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throw new RuntimeException("消息转为JSON字符串操作失败", e);
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}
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} else json = (String) message;
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try {
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session.sendMessage(new TextMessage(json));
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} catch (IOException e) {
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throw new RuntimeException("发送消息失败", e);
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}
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}
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@Override
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public void getLetter(long roomId, WebSocketSession session, long letterId) {
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var room = rooms.get(roomId);
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var letter = room.getLetters().get(letterId);
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// 如果没有这个字母，代表被其他玩家拿走了
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if (letter == null) return;
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var players = room.getPlayers();
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var player = players.get(session);
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// 发送消息通知其他玩家有人获得了字母
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var message = new GameMessage<>(MessageType.LETTER, new LetterAction(LetterActionType.GET, letter, player.getUserId()));
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for (var playerEntry : players.entrySet())
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sendMessage(playerEntry.getKey(), message);
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// TODO 字母校验和加分、改变血量逻辑
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// 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
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// 如果接取的是回血爱心，给玩家加10滴血
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}
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private void generateLetter(GameRoom room) {
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var players = room.getPlayers();
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var words = room.getWords();
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// 如果words长度<=5，从数据库中再获取一批随机单词
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if (words.size() <= 5) getWords(words);
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Letter letter;
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var id = UUID.randomUUID().getLeastSignificantBits();
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var val = random.nextInt(100);
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// 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
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if (val == 0)
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// 回血爱心
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letter = new Letter(id, "10", random.nextFloat(1), random.nextFloat(2, 6));
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else if (val <= 81)
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// 从当前单词中随机选择一个字母
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letter = new Letter(id, words.keySet().toArray()[random.nextInt(words.size())].toString(), random.nextFloat(1), random.nextFloat(2, 6));
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else
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// 随机生成一个字母
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letter = new Letter(id, String.valueOf((char) (random.nextInt(26) + 'a')), random.nextFloat(1), random.nextFloat(2, 6));
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room.getLetters().put(id, letter);
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// 给所有玩家发送字母
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for (var player : players.keySet())
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sendMessage(player, new GameMessage<>(MessageType.LETTER, new LetterAction(LetterActionType.CREATE, letter)));
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}
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private void getWords(Map<String, Integer> words) {
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// TODO 从数据库中获取一批随机单词，然后放入words中，并把单词数组推送给所有玩家
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}
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private void gameLogic(GameRoom room) {
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getWords(room.getWords());
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// 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
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// 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
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// 游戏结束后需要向玩家发送排行榜数据（用户ID、分数、排名）
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// 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
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}
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public void endGame(long roomId) {
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var room = rooms.get(roomId);
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room.setStatus(RoomStatus.WAITING);
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// 发送消息通知所有玩家游戏结束
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var message = new GameMessage<>(MessageType.ROOM, new RoomAction(RoomActionType.END));
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for (var player : room.getPlayers().keySet())
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sendMessage(player, message);
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// TODO 初始化玩家数据
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}
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}
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