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
|
/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2015 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/tmwa/messageout.h"
#include "net/packetcounters.h"
#include "net/tmwa/network.h"
#include "logger.h"
#include <SDL_endian.h>
#include "debug.h"
namespace TmwAthena
{
MessageOut::MessageOut(const int16_t id, const char *const str) :
Net::MessageOut(id),
mNetwork(TmwAthena::Network::instance())
{
mNetwork->fixSendBuffer();
mData = mNetwork->mOutBuffer + static_cast<size_t>(mNetwork->mOutSize);
// +++ can be issue. call to virtual member
writeInt16(id, str);
}
void MessageOut::expand(const size_t bytes)
{
mNetwork->mOutSize += static_cast<unsigned>(bytes);
PacketCounters::incOutBytes(static_cast<int>(bytes));
}
void MessageOut::writeInt16(const int16_t value, const char *const str)
{
DEBUGLOG2("writeInt16: " + toStringPrint(static_cast<unsigned int>(
static_cast<uint16_t>(value))),
mPos, str);
expand(2);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int16_t swap = SDL_Swap16(value);
memcpy(mData + static_cast<size_t>(mPos), &swap, sizeof(int16_t));
#else
memcpy(mData + static_cast<size_t>(mPos), &value, sizeof(int16_t));
#endif
mPos += 2;
PacketCounters::incOutBytes(2);
}
void MessageOut::writeInt32(const int32_t value, const char *const str)
{
DEBUGLOG2("writeInt32: " + toStringPrint(static_cast<unsigned int>(value)),
mPos, str);
expand(4);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int32_t swap = SDL_Swap32(value);
memcpy(mData + static_cast<size_t>(mPos), &swap, sizeof(int32_t));
#else
memcpy(mData + static_cast<size_t>(mPos), &value, sizeof(int32_t));
#endif
mPos += 4;
PacketCounters::incOutBytes(4);
}
#define LOBYTE(w) (static_cast<unsigned char>(w))
#define HIBYTE(w) (static_cast<unsigned char>(( \
static_cast<uint16_t>(w)) >> 8U))
void MessageOut::writeCoordinates(const uint16_t x,
const uint16_t y,
unsigned char direction,
const char *const str)
{
DEBUGLOG2(strprintf("writeCoordinates: %u,%u %u",
static_cast<unsigned>(x), static_cast<unsigned>(y),
static_cast<unsigned>(direction)), mPos, str);
unsigned char *const data = reinterpret_cast<unsigned char*>(mData)
+ static_cast<size_t>(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] = static_cast<unsigned char>(temp);
temp = y;
temp <<= 4;
data[1] |= HIBYTE(temp);
data[2] = LOBYTE(temp);
direction = toServerDirection(direction);
data[2] |= direction;
PacketCounters::incOutBytes(3);
}
} // namespace TmwAthena
|
