Merged with SDL_NET_TEST branch.

1 files changed, 94 insertions, 0 deletions

diff --git a/src/net/messagein.h b/src/net/messagein.h
new file mode 100644
index 00000000..9a61ce7d
--- /dev/null
+++ b/src/net/messagein.h
@@ -0,0 +1,94 @@
+/*
+ *  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
+ *
+ *  $Id$
+ */
+
+#ifndef _TMW_MESSAGEIN_
+#define _TMW_MESSAGEIN_
+
+#include <string>
+
+/**
+ * Used for parsing an incoming message.
+ */
+class MessageIn
+{
+    public:
+        /**
+         * Constructor.
+         */
+        MessageIn(const char *data, unsigned int length);
+
+        /**
+         * Returns the message ID.
+         */
+        short
+        getId() { return mId; }
+
+        /**
+         * Returns the message length.
+         */
+        unsigned int
+        getLength() { return mLength; }
+
+        char readByte();               /**< Reads a byte. */
+        short readShort();             /**< Reads a short. */
+        long readLong();               /**< Reads a long. */
+
+        /**
+         * Reads a special 3 byte block used by eAthena, containing x and y
+         * coordinates and direction.
+         */
+        void
+        readCoordinates(unsigned short &x,
+                        unsigned short &y,
+                        unsigned char &direction);
+
+        /**
+         * Reads a special 5 byte block used by eAthena, containing a source
+         * and destination coordinate pair.
+         */
+        void
+        readCoordinatePair(unsigned short &srcX, unsigned short &srcY,
+                           unsigned short &dstX, unsigned short &dstY);
+
+        /**
+         * Skips a given number of bytes.
+         */
+        void
+        skip(unsigned int length);
+
+        /**
+         * Reads a string. If a length is not given (-1), it is assumed
+         * that the length of the string is stored in a short at the
+         * start of the string.
+         */
+        std::string
+        readString(int length = -1);
+
+    private:
+        const char* mData;             /**< The message data. */
+        unsigned int mLength;          /**< The length of the data. */
+        unsigned int mPos;             /**< The position in the data. */
+        short mId;                     /**< The message ID. */
+};
+
+#endif