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-rw-r--r--src/net/tmwa/messagein.cpp74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/net/tmwa/messagein.cpp b/src/net/tmwa/messagein.cpp
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+++ b/src/net/tmwa/messagein.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/messagein.h"
+
+#include <SDL.h>
+#include <SDL_endian.h>
+
+#define MAKEWORD(low,high) \
+ ((unsigned short)(((unsigned char)(low)) | \
+ ((unsigned short)((unsigned char)(high))) << 8))
+
+namespace TmwAthena {
+
+MessageIn::MessageIn(const char *data, unsigned int length):
+ Net::MessageIn(data, length)
+{
+ // Read the message ID
+ mId = readInt16();
+}
+
+int MessageIn::readInt16()
+{
+ Sint16 value = -1;
+ if (mPos + 2 <= mLength)
+ {
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ Sint16 swap;
+ memcpy(&swap, mData + mPos, sizeof(Sint16));
+ value = SDL_Swap16(swap);
+#else
+ memcpy(&value, mData + mPos, sizeof(Sint16));
+#endif
+ }
+ mPos += 2;
+ return value;
+}
+
+int MessageIn::readInt32()
+{
+ Sint32 value = -1;
+ if (mPos + 4 <= mLength)
+ {
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ Sint32 swap;
+ memcpy(&swap, mData + mPos, sizeof(Sint32));
+ value = SDL_Swap32(swap);
+#else
+ memcpy(&value, mData + mPos, sizeof(Sint32));
+#endif
+ }
+ mPos += 4;
+ return value;
+}
+
+} // namespace TmwAthena