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
|
/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* The Mana World is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: messageout.cpp 2112 2006-01-22 13:31:13Z der_doener $
*/
#include "messageout.h"
#include <string>
#include <SDL.h>
#include <SDL_endian.h>
#include "network.h"
#include "packet.h"
MessageOut::MessageOut(Network *network):
mNetwork(network),
mData(0),
mDataSize(0),
mPos(0)
{
mData = mNetwork->mOutBuffer + mNetwork->mOutSize;
}
void MessageOut::writeInt8(Sint8 value)
{
mData[mPos] = value;
mPos += sizeof(Sint8);
mNetwork->mOutSize+= sizeof(Sint8);
}
void MessageOut::writeInt16(Sint16 value)
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(Sint16 *)(mData + mPos)) = SDL_Swap16(value);
#else
(*(Sint16 *)(mData + mPos)) = value;
#endif
mPos += sizeof(Sint16);
mNetwork->mOutSize += sizeof(Sint16);
}
void MessageOut::writeInt32(Sint32 value)
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(Sint32 *)(mData + mPos)) = SDL_Swap32(value);
#else
(*(Sint32 *)(mData + mPos)) = value;
#endif
mPos += sizeof(Sint32);
mNetwork->mOutSize += sizeof(Sint32);
}
void MessageOut::writeString(const std::string &string, int length)
{
std::string toWrite = string;
if (length < 0)
{
// Write the length at the start if not fixed
writeInt16(string.length());
}
else
{
// Make sure the length of the string is no longer than specified
toWrite = string.substr(0, length);
}
// Write the actual string
memcpy(&mData[mPos], (void*)toWrite.c_str(), toWrite.length());
mPos += toWrite.length();
mNetwork->mOutSize += toWrite.length();
// Pad remaining space with zeros
if (length > (int)toWrite.length())
{
memset(&mData[mPos], '\0', length - toWrite.length());
mPos += length - toWrite.length();
mNetwork->mOutSize += length - toWrite.length();
}
}
MessageOut& operator<<(MessageOut &msg, const Sint8 &rhs)
{
msg.writeInt8(rhs);
return msg;
}
MessageOut& operator<<(MessageOut &msg, const Sint16 &rhs)
{
msg.writeInt16(rhs);
return msg;
}
MessageOut& operator<<(MessageOut &msg, const Sint32 &rhs)
{
msg.writeInt32(rhs);
return msg;
}
|
