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-rw-r--r--net/messageout.cpp116
1 files changed, 116 insertions, 0 deletions
diff --git a/net/messageout.cpp b/net/messageout.cpp
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+++ b/net/messageout.cpp
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+/*
+ * 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;
+}