blob: 455c03dd2c55a3c9fff9206402ae55e424033c4c (
plain)
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
net/netconnection.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#include <sstream>
#include "sys/sys.h"
#include "net/net.h"
#include "core/application.h"
#include "core/gameconnection.h"
#include "core/netconnection.h"
#include "core/player.h"
namespace core
{
NetConnection::NetConnection()
{
}
NetConnection::~NetConnection()
{
}
void NetConnection::connect(std::string const &to_host, int to_port)
{
TCPConnection::connect(to_host, to_port);
if(connected()) {
FD_ZERO(&clientset);
FD_SET(fd(), &clientset);
}
std::ostringstream osstream;
osstream << "pif ";
game()->localplayer()->serialize_client_update(osstream);
osstream << '\n';
send(osstream.str());
}
void NetConnection::disconnect()
{
TCPConnection::disconnect();
FD_ZERO(&clientset);
}
bool NetConnection::has_messages() const
{
return (recvq.size() > 0);
}
void NetConnection::retreive(std::string & message)
{
if (recvq.size() > 0) {
message.assign(recvq.front());
recvq.pop_front();
} else {
message.clear();
}
}
// receive data and decode it into lines
void NetConnection::receive()
{
// TODO: binary mode data transfer
std::string datablock;
TCPConnection::receive(datablock);
if (error())
return;
while (datablock.size() > 0) {
// scan the datablock for enters
if (datablock[0] == '\n' || datablock[0] == '\r') {
if (messageblock.size() > 0) {
recvq.push_back(messageblock);
messageblock.clear();
}
} else {
if (messageblock.size() < net::FRAMESIZE) {
messageblock.append(datablock.substr(0,1));
} else {
con_warn << "Network message exceeds " << net::FRAMESIZE << " bytes!" << std::endl;
messageblock.clear();
}
}
datablock.erase(0,1);
}
datablock.clear();
}
void NetConnection::frame(float seconds)
{
timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 0;
fd_set readset = clientset;
int nb = select(fd()+1, &readset, NULL, NULL, &timeout);
if (nb == 0)
return;
if (nb == -1) {
con_error << "Network error on select()" << std::endl;
//perror("select");
abort();
}
if (FD_ISSET(this->fd(), &readset) && !error()) {
receive();
while (has_messages()) {
std::string message;
retreive(message);
parse_incoming_message(message);
}
}
}
// parse incoming client messages
/**
* The following incoming messages are parsed;
*
* msg info <text>
* msg public <name> <text>
* die
* ent
* sup
* pif
*/
void NetConnection::parse_incoming_message(const std::string & message)
{
std::istringstream msgstream(message);
std::string command;
msgstream >> command;
if (command == "msg") {
std::string level;
if (msgstream >> level) {
if (level =="info") {
if (message.size() > 9) {
con_print << message.substr(9) << std::endl;
}
} else if (level == "public") {
// FIXME - separate sender nickname
if (message.size() > 11) {
con_print << message.substr(11) << std::endl;
}
}
}
} else if (command == "die") {
unsigned int id;
msgstream >> id;
Entity *e = Entity::find(id);
con_debug << "Received die entity id " << id << "\n";
if (localcontrol() == e)
localplayer()->player_control = 0;
if (e)
Entity::remove(id);
} else if (command == "ent") {
unsigned int type;
msgstream >> type;
con_debug << "Received create entity type " << type << "\n";
switch (type)
{
case Entity::Default:
new Entity(msgstream);
break;
case Entity::Dynamic:
new EntityDynamic(msgstream);
break;
case Entity::Controlable:
new EntityControlable(msgstream);
break;
default:
break;
}
} else if (command == "sup") {
unsigned int id;
if (msgstream >> id) {
Entity *entity = Entity::find(id);
if (!entity) {
con_warn << "Update for unknown entity " << id << "\n";
} else
entity->recieve_server_update(msgstream);
}
return;
} else if (command == "pif") {
connection()->localplayer()->recieve_server_update(msgstream);
}
}
}
|
