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-rw-r--r--src/net/tmwa/messageout.cpp142
1 files changed, 142 insertions, 0 deletions
diff --git a/src/net/tmwa/messageout.cpp b/src/net/tmwa/messageout.cpp
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+++ b/src/net/tmwa/messageout.cpp
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+/*
+ * The Mana Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana 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 "log.h"
+
+#include "utils/stringutils.h"
+
+#include <SDL.h>
+#include <SDL_endian.h>
+
+#include <cstring>
+#include <string>
+
+namespace TmwAthena
+{
+
+MessageOut::MessageOut(short id):
+ Net::MessageOut(id)
+{
+ mNetwork = TmwAthena::Network::instance();
+ mData = mNetwork->mOutBuffer + mNetwork->mOutSize;
+ writeInt16(id);
+}
+
+void MessageOut::expand(size_t bytes)
+{
+ mNetwork->mOutSize += static_cast<unsigned>(bytes);
+ PacketCounters::incOutBytes(static_cast<int>(bytes));
+}
+
+void MessageOut::writeInt16(Sint16 value)
+{
+ DEBUGLOG("writeInt16: " + toString((int)value));
+ expand(2);
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ Sint16 swap = SDL_Swap16(value);
+ memcpy(mData + mPos, &swap, sizeof(Sint16));
+#else
+ memcpy(mData + mPos, &value, sizeof(Sint16));
+#endif
+ mPos += 2;
+ PacketCounters::incOutBytes(2);
+}
+
+void MessageOut::writeInt32(Sint32 value)
+{
+ DEBUGLOG("writeInt32: " + toString(value));
+ expand(4);
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ Sint32 swap = SDL_Swap32(value);
+ memcpy(mData + mPos, &swap, sizeof(Sint32));
+#else
+ memcpy(mData + mPos, &value, sizeof(Sint32));
+#endif
+ mPos += 4;
+ PacketCounters::incOutBytes(4);
+}
+
+#define LOBYTE(w) ((unsigned char)(w))
+#define HIBYTE(w) ((unsigned char)(((unsigned short)(w)) >> 8))
+
+void MessageOut::writeCoordinates(unsigned short x, unsigned short y,
+ unsigned char direction)
+{
+ DEBUGLOG(strprintf("writeCoordinates: %u,%u %u", x, y, direction));
+ char *data = mData + mPos;
+ mNetwork->mOutSize += 3;
+ mPos += 3;
+
+ short temp;
+ temp = x;
+ temp <<= 6;
+ data[0] = 0;
+ data[1] = 1;
+ data[2] = 2;
+ data[0] = HIBYTE(temp);
+ data[1] = (unsigned char) temp;
+ temp = y;
+ temp <<= 4;
+ data[1] |= HIBYTE(temp);
+ data[2] = LOBYTE(temp);
+
+ // Translate direction to eAthena format
+ switch (direction)
+ {
+ case 1:
+ direction = 0;
+ break;
+ case 3:
+ direction = 1;
+ break;
+ case 2:
+ direction = 2;
+ break;
+ case 6:
+ direction = 3;
+ break;
+ case 4:
+ direction = 4;
+ break;
+ case 12:
+ direction = 5;
+ break;
+ case 8:
+ direction = 6;
+ break;
+ case 9:
+ direction = 7;
+ break;
+ default:
+ // OOPSIE! Impossible or unknown
+ direction = (unsigned char) -1;
+ }
+ data[2] |= direction;
+ PacketCounters::incOutBytes(3);
+}
+
+} // namespace TmwAthena