gaple/gaple_net.pas at master · git-bee/gaple · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
(* NETWORK ROUTINES *)

{ client side }

procedure TFormGaple.ClientSocketConnecting(Sender: TObject; Socket: TCustomWinSocket);
begin
  with FormNew do
  begin
    // disable control while connecting
    cbKind.Enabled := false;
    EditName.Enabled := false;
    EditIP.Enabled := false;
    cbPlayer2.Enabled := false;
    cbPlayer3.Enabled := false;
    cbPlayer4.Enabled := false;
    EditMsg.Enabled := false;
    ButtonMsg.Enabled := false;

    ButtonClient.Caption := '&Abort';
    MemoMsg.Lines.Add('Connecting to server...');
  end;
end;

procedure TFormGaple.ClientSocketConnect(Sender: TObject; Socket: TCustomWinSocket);
begin
  with FormNew do
  begin
    cbKind.Enabled := false;
    EditName.Enabled := false;
    EditIP.Enabled := false;
    EditMsg.Enabled := true;
    ButtonMsg.Enabled := true;

    ButtonClient.Caption := '&Abort';
    MemoMsg.Lines.Add('Connected to server.');

    // send client player info after connected
    Socket.SendText('INFO:Name='+EditName.Text);
  end;
end;

procedure TFormGaple.ClientSocketDisconnect(Sender: TObject; Socket: TCustomWinSocket);
begin
  with FormNew do
  begin
    // enable control after disconnecting
    cbKind.Enabled := true;
    EditName.Enabled := true;
    EditIP.Enabled := true;
    EditMsg.Enabled := false;
    ButtonMsg.Enabled := false;

    ButtonClient.Caption := '&Join';
    MemoMsg.Lines.Add('Join game has aborted.');
  end;
end;

procedure TFormGaple.ClientSocketError(Sender: TObject; Socket: TCustomWinSocket; ErrorEvent: TErrorEvent; var ErrorCode: Integer);
begin
  with FormNew do
  begin
    // enable control on error
    cbKind.Enabled := true;
    EditName.Enabled := true;
    EditIP.Enabled := true;
    EditMsg.Enabled := false;
    ButtonMsg.Enabled := false;

    ButtonClient.Caption := '&Join';
    MemoMsg.Lines.Add('Unable to connect to server.');

    ErrorCode := 0;
  end;
end;

// read from server
procedure TFormGaple.ClientSocketRead(Sender: TObject; Socket: TCustomWinSocket);
var
  data_text: string;
  cmd_text: string;
  cmd_del_pos: integer;
begin
  data_text := Socket.ReceiveText;
  cmd_del_pos := Pos(':',data_text);
  cmd_text := Copy(data_text,1,cmd_del_pos-1);
  data_text := Copy(data_text,cmd_del_pos+1,Length(data_text));

  if (cmd_del_pos > 0) and (cmd_del_pos < 9) then
  begin
    // read server banner
    if cmd_text = 'BANNER' then
      FormNew.MemoMsg.Lines.Add(data_text);
  end
  else
    FormNew.MemoMsg.Lines.Add(data_text);
end;

{ server side }

procedure TFormGaple.ServerSocketClientConnect(Sender: TObject; Socket: TCustomWinSocket);
begin
  // send server banner to connected client
  if ServerSocket.Socket.ActiveConnections <= NetworkPlayers then
    Socket.SendText(ConfigFile.ReadString('NETWORK','Greeting','Welcome to Gaple server.'))
  else
  // reject client if server is full
  begin
    Socket.SendText('Game server is full.');
    Socket.Disconnect(Socket.SocketHandle);
  end;
end;

procedure TFormGaple.ServerSocketClientDisconnect(Sender: TObject; Socket: TCustomWinSocket);
begin
  FormNew.MemoMsg.Lines.Add('A player has been disconnected.');
end;

// read from client
procedure TFormGaple.ServerSocketClientRead(Sender: TObject; Socket: TCustomWinSocket);
var
  data_text: string;
  cmd_text: string;
  i,cmd_del_pos: integer;
begin
  data_text := Socket.ReceiveText;
  cmd_del_pos := Pos(':',data_text);
  cmd_text := Copy(data_text,1,cmd_del_pos-1);
  data_text := Copy(data_text,cmd_del_pos+1,Length(data_text));

  if (cmd_del_pos > 0) and (cmd_del_pos < 9) then
  begin
    // send new player info to network
    if cmd_text = 'INFO' then
    begin
      FormNew.MemoMsg.Lines.Add(data_text+' connected.');

      for i := 0 to ServerSocket.Socket.ActiveConnections-1 do
        ServerSocket.Socket.Connections[i].SendText(data_text+' connected.');
    end;
  end
  else
  begin
    FormNew.MemoMsg.Lines.Add(data_text);

    for i := 0 to ServerSocket.Socket.ActiveConnections-1 do
      ServerSocket.Socket.Connections[i].SendText(data_text);
  end;
end;