1 files changed, 126 insertions, 0 deletions
diff --git a/src/net/ea/messageout.cpp b/src/net/ea/messageout.cpp
new file mode 100644
index 00000000..f75dcf7e
--- /dev/null
+++ b/src/net/ea/messageout.cpp
@@ -0,0 +1,126 @@
+/*
+ *  The Mana World
+ *  Copyright (C) 2004  The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "net/ea/messageout.h"
+
+#include "net/ea/network.h"
+
+#include <SDL.h>
+#include <SDL_endian.h>
+
+#include <cstring>
+#include <string>
+
+namespace EAthena {
+
+MessageOut::MessageOut(short id):
+        Net::MessageOut(id)
+{
+    mNetwork = EAthena::Network::instance();
+    mData = mNetwork->mOutBuffer + mNetwork->mOutSize;
+    writeInt16(id);
+}
+
+void MessageOut::expand(size_t bytes)
+{
+    mNetwork->mOutSize += bytes;
+}
+
+void MessageOut::writeInt16(Sint16 value)
+{
+    expand(2);
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+    (*(Sint16 *)(mData + mPos)) = SDL_Swap16(value);
+#else
+    (*(Sint16 *)(mData + mPos)) = value;
+#endif
+    mPos += 2;
+}
+
+void MessageOut::writeInt32(Sint32 value)
+{
+    expand(4);
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+    (*(Sint32 *)(mData + mPos)) = SDL_Swap32(value);
+#else
+    (*(Sint32 *)(mData + mPos)) = value;
+#endif
+    mPos += 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)
+{
+    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;
+}
+
+}