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
|
/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2017 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "net/eathena/messageout.h"
#include "net/packetcounters.h"
#include "net/eathena/network.h"
#include "logger.h"
#include "debug.h"
#ifndef SDL_BIG_ENDIAN
#error missing SDL_endian.h
#endif // SDL_BYTEORDER
namespace EAthena
{
MessageOut::MessageOut(const int16_t id) :
Net::MessageOut(id),
mNetwork(EAthena::Network::instance())
{
mNetwork->fixSendBuffer();
mData = mNetwork->mOutBuffer + CAST_SIZE(mNetwork->mOutSize);
}
MessageOut::~MessageOut()
{
DEBUGLOG2("writeEnd: ", mPos, "position after end of packet");
}
void MessageOut::expand(const size_t bytes) const
{
mNetwork->mOutSize += CAST_U32(bytes);
PacketCounters::incOutBytes(CAST_S32(bytes));
}
void MessageOut::writeInt16(const int16_t value, const char *const str)
{
expand(2);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int16_t swap = SDL_Swap16(value);
memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int16_t));
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int16_t));
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
DEBUGLOG2("writeInt16: " + toStringPrint(CAST_U32(
CAST_U16(value))),
mPos, str);
mPos += 2;
PacketCounters::incOutBytes(2);
}
void MessageOut::writeInt32(const int32_t value, const char *const str)
{
DEBUGLOG2("writeInt32: " + toStringPrint(CAST_U32(value)),
mPos, str);
expand(4);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int32_t swap = SDL_Swap32(value);
memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int32_t));
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int32_t));
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
mPos += 4;
PacketCounters::incOutBytes(4);
}
void MessageOut::writeInt64(const int64_t value, const char *const str)
{
DEBUGLOG2("writeInt64: " + toStringPrint(CAST_U32(value)),
mPos, str);
expand(8);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int32_t swap = SDL_Swap64(value);
memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int64_t));
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int64_t));
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
mPos += 8;
PacketCounters::incOutBytes(8);
}
void MessageOut::writeBeingId(const BeingId value, const char *const str)
{
writeInt32(toInt(value, int32_t), str);
}
#define LOBYTE(w) (CAST_U8(w))
#define HIBYTE(w) (CAST_U8(( \
CAST_U16(w)) >> 8))
void MessageOut::writeCoordinates(const uint16_t x,
const uint16_t y,
unsigned char direction,
const char *const str)
{
DEBUGLOG2(strprintf("writeCoordinates: %u,%u %u",
CAST_U32(x),
CAST_U32(y),
CAST_U32(direction)), mPos, str);
unsigned char *const data = reinterpret_cast<unsigned char*>(mData)
+ CAST_SIZE(mPos);
mNetwork->mOutSize += 3;
mPos += 3;
uint16_t temp = x;
temp <<= 6;
data[0] = 0;
data[1] = 1;
data[2] = 2;
data[0] = HIBYTE(temp);
data[1] = CAST_U8(temp);
temp = y;
temp <<= 4;
data[1] |= HIBYTE(temp);
data[2] = LOBYTE(temp);
direction = toServerDirection(direction);
data[2] |= direction;
PacketCounters::incOutBytes(3);
}
} // namespace EAthena
|
