private void StartRecv()
{
server.Close();
server = new UdpClient(localEndPoint);
UdpState recvState = new UdpState(server);
server.BeginReceive(new AsyncCallback(recvCallBack), recvState);
}
private void sendCallBack(IAsyncResult res)
{
sendCallBackWithoutRecv(res);
server = new UdpClient(localEndPoint);
UdpState recvState = new UdpState(server);
server.BeginReceive(new AsyncCallback(recvCallBack), recvState);
}
private void SendResponseWithoutRecv(string type, string content, UdpState recvState)
{
MpTextMessage response = new MpTextMessage(type, content);
byte[] sendBuffer = response.GetBytes();
//发送回复
try
{
server.Connect(recvState.remoteEndPoint);
}
catch
{
Log("无法建立到客户端: " + recvState.remoteEndPoint.ToString() + " 的连接。");
}
server.BeginSend(sendBuffer, sendBuffer.Length, sendCallBackWithoutRecv, new UdpSendState(server, response.ToString()));
}
private void btn_start_Click(object sender, EventArgs e)
{
if (txt_port.Text.Length > 0)
{
int port = int.Parse(txt_port.Text);
if (port <= 65535)
{
if (server == null)
{
//初始化数据
roomList = new List <Room>();
playerList = new List <Player>();
currentRoomId = 0;
//启动服务器
localEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), port);
server = new UdpClient(localEndPoint);
UdpState recvState = new UdpState(server);
server.BeginReceive(new AsyncCallback(recvCallBack), recvState);
Log("服务器已启动，正在接收消息……");
//ui
this.btn_stop.Enabled = true;
this.btn_start.Enabled = false;
}
else
{
MessageBox.Show("服务运行中。", "错误");
}
}
else
{
MessageBox.Show("请输入合法端口号。", "错误");
}
}
else
{
MessageBox.Show("请输入端口号。", "错误");
}
}
private void recvCallBack(IAsyncResult res)
{
UdpState recvState = res.AsyncState as UdpState;
if (res.IsCompleted)
{
string message = null;
try
{
byte[] recvBytes = recvState.client.EndReceive(res, ref recvState.remoteEndPoint);
message = Encoding.UTF8.GetString(recvBytes);
}
catch
{
//do nothing
}
try
{
if (message != null)
{
Log("收到消息: " + message);
JObject jObject = (JObject)JsonConvert.DeserializeObject(message);
string msgType = jObject["type"].ToString();
switch (msgType)
{
//连接
case "connect":
string[] contents = jObject["content"].ToString().Split(',');
string playerName = "";
string playerGuid = "";
try
{
playerName = contents[0].Trim();
playerGuid = contents[1].Trim();
} catch (Exception ex)
{
Log("解析消息出现问题: " + ex.Message);
}
Log("新玩家加入大厅：" + playerName + "(" + playerGuid + "):" + recvState.remoteEndPoint.ToString());
//加入到玩家列表
Player player = new Player(playerGuid, playerName, recvState.remoteEndPoint);
playerList.Add(player);
SendResponse("connect", "success", recvState);
break;
//断开连接
case "disconnect":
//传入内容为playerGuid
playerGuid = jObject["content"].ToString();
foreach (Player p in playerList)
{
if (p.GUID == playerGuid)
{
playerList.Remove(p);
break;
}
}
break;
//房间列表
case "room_list":
List <RoomInfo> avaliableRooms = new List <RoomInfo>();
foreach (Room r in roomList)
{
if (r.status == 0)
{
//新建roominfo
RoomInfo info = new RoomInfo();
info.id = r.id;
info.name = r.name;
info.playerCount = r.playerCount;
info.capacity = r.capacity;
avaliableRooms.Add(info);
}
}
SendResponse("room_list", JsonConvert.SerializeObject(avaliableRooms), recvState.remoteEndPoint);
break;
//创建房间
case "create_room":
playerGuid = jObject["content"].ToString();
//新建房间
Room room = new Room("游戏房间", 4); //默认设置
room.level = "l_1";
//获取玩家
player = playerList.Find(p => p.GUID.Equals(playerGuid));
if (player == null)
{
//没有找到Guid匹配的玩家
SendResponse("create_room", "failed", recvState);
Log("创建房间失败: " + playerList.ToString());
}
else
{
//使用递增的id
room.id = currentRoomId;
currentRoomId++;
//设置玩家
room.players[0] = player;
room.holder = 0;
room.playerCount++;
player.isInLobby = true;
//加入到列表
roomList.Add(room);
//回传数据，格式为 success,roomId
SendResponse("create_room", "success," + room.id.ToString(), recvState);
}
break;
//房间容量调整
case "room_changeCapacity":
//传入内容为roomId,newCapacity
contents = jObject["content"].ToString().Split(',');
long roomId = long.Parse(contents[0]);
int newCapacity = Convert.ToInt32(contents[1]);
//判断容量是否合法
if (newCapacity > 4 || newCapacity <= 1)
{
SendResponse("room_changeCapacity", "failed", recvState);
break;
}
room = roomList.Find(r => r.id.Equals(roomId));
if (room == null)
{
SendResponse("room_changeCapacity", "failed", recvState);
break;
}
else
{
room.capacity = newCapacity;
//给请求的玩家发送回复
SendResponse("room_changeCapacity", "success", recvState);
//给房间内的其他玩家发送更改消息
foreach (Player p in room.players)
{
SendResponseWithoutRecv("room_changeCapacity", newCapacity.ToString(), p.EndPoint);
}
}
break;
//房间关卡调整
case "room_changeLevel":
break;
//房间名称调整
case "room_changeName":
//传入内容为roomId,newTitle
contents = jObject["content"].ToString().Split(',');
roomId = long.Parse(contents[0]);
string newTitle = contents[1];
room = roomList.Find(r => r.id.Equals(roomId));
if (room == null)
{
break;
}
else
{
room.name = newTitle;
//给房间内的其他玩家发送更改消息
for (int i = 0; i < room.players.Length; i++)
{
if (room.players[i] != null && i != room.holder)
{
SendResponseWithoutRecv("room_changeName", roomId.ToString() + "," + newTitle, room.players[i].EndPoint);
}
}
}
StartRecv();
break;
//加入房间
case "join_room":
break;
//离开房间
case "leave_room":
//传入内容为roomId,newLevel
contents = jObject["content"].ToString().Split(',');
roomId = long.Parse(contents[0]);
playerGuid = contents[1];
Log("玩家[" + playerGuid + "]离开了房间[" + roomId.ToString() + "]");
//获取玩家
player = playerList.Find(p => p.GUID.Equals(playerGuid));
room = roomList.Find(r => r.id.Equals(roomId));
if (player != null && room != null)
{
room.playerCount--;
if (room.playerCount > 0)
{
for (int i = 0; i < room.players.Length; i++)
{
if (room.players[i].GUID.Equals(playerGuid))
{
//判断玩家是否为房主，若是，则寻找新的房主
if (room.holder == i)
{
//设置新房主
for (int j = 0; j < room.players.Length; j++)
{
if (room.players[j] != null && j != i)
{
room.holder = j;
}
}
}
room.players[i] = null;
}
}
}
else
{
roomList.Remove(room);
}
}
StartRecv();
break;
//准备
case "game_ready":
break;
//开始
case "game_start":
break;
//读取完成
case "load_completed":
break;
default:
Log("消息类别不明: " + message);
StartRecv();
break;
}
}
}
catch (Exception e)
{
if (message != null)
{
Log("无法解析收到的消息: " + e.Message + " @ " + message);
}
else
{
Log("无法解析收到的消息: " + e.Message);
}
}
}
}