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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
|
#include "server.h"
#include <QtNetwork/QTcpServer>
#include <QtNetwork/QTcpSocket>
#include "util.h"
#include "pacman.pb.h"
#include "block.h"
Server::Server(QWidget *parent)
: SceneHolder(parent)
{
qDebug() << "[Server] Waiting for clients";
waitForClientConnections();
qDebug() << "[Server] All Clients connected";
Transmission::map_t map = Util::createDemoMap();
updateMap(map);
Util::deleteMap(map);
map = NULL;
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(tick()));
timer->start(Constants::tick);
}
void Server::tick()
{
qDebug() << "[Tick] Doing server update";
Transmission::map_t map = calculateUpdates();
updateMap(map);
sendUpdate(map);
Util::deleteMap(map);
}
Transmission::map_t Server::calculateUpdates()
{
Transmission::map_t map = Util::createEmptyMap();
//TODO: ai
//m_actorMovements[Color::blue] = Actor::Movement((qrand() % 4) + 1);
//m_actorMovements[Color::green] = Actor::Movement((qrand() % 4) + 1);
QMutableMapIterator<Color::Color, Actor::Movement> i(m_actorMovements);
while (i.hasNext())
{
i.next();
int turn = 0;
invalid_direction:
++turn;
Actor *actor = m_actors.value(i.key());
QPoint mapPosition = CoordToMapPosition(actor->pos().toPoint());
qDebug() << "[Calc] Actor wants to move: color=" << i.key()
<< "pos=" << mapPosition << "direction=" << i.value();
QPoint newMapPosition = mapPosition;
switch (i.value())
{
case Actor::Up:
newMapPosition += QPoint(0, -1);
break;
case Actor::Down:
newMapPosition += QPoint(0, 1);
break;
case Actor::Left:
newMapPosition += QPoint(-1, 0);
break;
case Actor::Right:
newMapPosition += QPoint(1, 0);
break;
case Actor::None:
break;
default:
Q_ASSERT(false);
}
if (newMapPosition.x() < 0)
newMapPosition.setX(0);
if (newMapPosition.x() >= visualMap.size())
newMapPosition.setX(visualMap.size() - 1);
if (newMapPosition.y() < 0)
newMapPosition.setY(0);
if (newMapPosition.y() >= visualMap[newMapPosition.x()].size())
newMapPosition.setY(visualMap[newMapPosition.x()].size() - 1);
// <t3h g4m3 10gic>
// TODO: support actors eating each other
// TODO: old item - REMOVE THAT?
GameEntity *oldItem = visualMap[mapPosition.x()][mapPosition.y()];
/* check if there's an item at new location of actor */
GameEntity *item = visualMap[newMapPosition.x()][newMapPosition.y()];
if (item != NULL && oldItem != item)
{
qDebug() << "[Calc] Found item at new actor location";
if (!item->checkEnter(actor))
{
/* movement invalid. e.g. move against wall */
newMapPosition = mapPosition;
qDebug() << "[Calc] Item blocks actor";
}
else
{
/* apply actions of entering this field */
bool survive = item->enter(actor);
if (!survive)
{
map[newMapPosition.x()][newMapPosition.y()] = Transmission::empty | actor->color();
}
}
}
// </t3h g4m2 10gic>
/* movement didn't work - e.g. was blocked */
if (mapPosition == newMapPosition)
{
/* */
if (turn == 1 && i.value() != actor->direction())
{
/* set direction back to last known direction and try again */
qDebug() << "[Calc] Movement was blocked. Trying last known actor direction";
m_actorMovements[i.key()] = actor->direction();
goto invalid_direction;
}
else
{
/* second turn didn't work too -> stop movement */
m_actorMovements[i.key()] = Actor::None;
qDebug() << "[Calc] No good direction known. Movement stopped";
}
}
map[newMapPosition.x()][newMapPosition.y()] |= Transmission::pacman |
i.key() | Util::actorMovementToTransmission(i.value());
/* DEBUG: uncomments to disable auto-movement */
//m_actorMovements[i.key()] = Actor::None;
if (i.value() == Actor::None)
{
/* set actor to non-moving */
m_actorMovements[i.key()] = Actor::None;
i.remove();
}
}
return map;
}
void Server::waitForClientConnections()
{
QTcpServer *tcpSrv = new QTcpServer(this);
// server must stay alive as long as sockets (qt parent mem mechanism)
tcpSrv->listen(QHostAddress::Any, Constants::Networking::port);
#define SINGLE
#ifdef SINGLE
for (unsigned int i = 0; i < 1; ++i)
{
#else
for (unsigned int i = 0; Color::order[i] != Color::none; ++i)
{
#endif
bool connectionAvailable = tcpSrv->waitForNewConnection(-1);
Q_ASSERT(connectionAvailable);
Q_UNUSED(connectionAvailable);
QTcpSocket *socket = tcpSrv->nextPendingConnection();
connect(socket, SIGNAL(readyRead()), this, SLOT(keyPressUpdate()));
/* assign color */
Color::Color color = Color::order[i];
m_clientConnections[color] = socket;
/* notify player of color */
//TODO: allocate + reuse packet
ProtoBuf::WhoAmI packet;
packet.set_color(color);
Util::sendPacket(packet, socket);
qDebug() << "[Connect] New Player: color=" << color;
}
}
void Server::sendUpdate(Transmission::map_t map)
{
ProtoBuf::MapUpdate packet;
for (unsigned int x = 0; x < Constants::map_size.width; ++x)
{
for (unsigned int y = 0; y < Constants::map_size.height; ++y)
packet.add_field(map[x][y]);
}
for(unsigned i = 0; Color::order[i] != Color::none; ++i)
{
packet.add_round_points(m_actors.value(Color::order[i])->getRoundPoints());
packet.add_game_points(m_actors.value(Color::order[i])->getGamePoints());
}
QSharedPointer<QByteArray> data = Util::createPacket(packet);
foreach(QTcpSocket *socket, m_clientConnections)
{
if (!Util::sendPacket(data.data(), socket))
{
qDebug() << "[sendUpdate] Error while sending data to client, exiting...";
qApp->quit();
}
}
}
void Server::keyPressUpdate()
{
QMapIterator<Color::Color, QTcpSocket *> i(m_clientConnections);
while (i.hasNext())
{
i.next();
Color::Color color = i.key();
QTcpSocket *socket = i.value();
QDataStream in(i.value());
while (socket->bytesAvailable() > (qint64)sizeof(qint64))
{
QSharedPointer<QByteArray> data = Util::receivePacket(socket);
//TODO: allocate + reuse packet
ProtoBuf::KeyPressUpdate packet;
bool worked = packet.ParseFromArray(data->data(), data->size());
Q_ASSERT(worked);
Q_UNUSED(worked);
Transmission::field_t direction = packet.newkey();
qDebug() << "[KeyPress] actor=" << color << "direction=" << direction;
m_actorMovements[color] = Util::transmissionMovementToActor(direction);
}
}
}
bool Constants::server = true;
int main(int argc, char ** argv)
{
/* Verify that the version of the library that we linked against is
* compatible with the version of the headers we compiled against.
*/
GOOGLE_PROTOBUF_VERIFY_VERSION;
QApplication app(argc, argv, false);
app.setApplicationName("Pacman Server");
app.setWindowIcon(QIcon(":/appicon"));
qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
Server Server;
int ret = app.exec();
/* Delete all global objects allocated by libprotobuf */
google::protobuf::ShutdownProtobufLibrary();
return ret;
}
|
