Add basic support for eathena stable.

Can register, create char, connect to map server and get map info.

1 files changed, 309 insertions, 0 deletions

diff --git a/src/net/eathena/npchandler.cpp b/src/net/eathena/npchandler.cpp
new file mode 100644
index 000000000..8b64248e4
--- /dev/null
+++ b/src/net/eathena/npchandler.cpp
@@ -0,0 +1,309 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2004-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2012  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus 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/eathena/npchandler.h"
+
+#include "localplayer.h"
+
+#include "gui/npcdialog.h"
+#include "gui/viewport.h"
+
+#include "net/messagein.h"
+#include "net/net.h"
+#include "net/npchandler.h"
+
+#include "net/eathena/protocol.h"
+
+#include "net/ea/eaprotocol.h"
+
+#include "utils/langs.h"
+
+#include "debug.h"
+
+extern Net::NpcHandler *npcHandler;
+
+namespace EAthena
+{
+
+NpcHandler::NpcHandler() :
+    mRequestLang(false)
+{
+    static const uint16_t _messages[] =
+    {
+        SMSG_NPC_CHOICE,
+        SMSG_NPC_MESSAGE,
+        SMSG_NPC_NEXT,
+        SMSG_NPC_CLOSE,
+        SMSG_NPC_INT_INPUT,
+        SMSG_NPC_STR_INPUT,
+        SMSG_NPC_COMMAND,
+        0
+    };
+    handledMessages = _messages;
+    npcHandler = this;
+}
+
+void NpcHandler::handleMessage(Net::MessageIn &msg)
+{
+    int npcId = getNpc(msg, msg.getId() == SMSG_NPC_CHOICE
+        || msg.getId() == SMSG_NPC_MESSAGE);
+
+    if (msg.getId() != SMSG_NPC_STR_INPUT)
+        mRequestLang = false;
+
+    switch (msg.getId())
+    {
+        case SMSG_NPC_CHOICE:
+            processNpcChoice(msg);
+            break;
+
+        case SMSG_NPC_MESSAGE:
+            processNpcMessage(msg);
+            break;
+
+        case SMSG_NPC_CLOSE:
+            processNpcClose(msg);
+            break;
+
+        case SMSG_NPC_NEXT:
+            processNpcNext(msg);
+            break;
+
+        case SMSG_NPC_INT_INPUT:
+            processNpcIntInput(msg);
+            break;
+
+        case SMSG_NPC_STR_INPUT:
+            if (mRequestLang)
+                processLangReuqest(msg, npcId);
+            else
+                processNpcStrInput(msg);
+            break;
+
+        case SMSG_NPC_COMMAND:
+            processNpcCommand(msg, npcId);
+            break;
+
+        default:
+            break;
+    }
+
+    mDialog = nullptr;
+}
+
+void NpcHandler::talk(int npcId)
+{
+    MessageOut outMsg(CMSG_NPC_TALK);
+    outMsg.writeInt32(npcId);
+    outMsg.writeInt8(0); // Unused
+}
+
+void NpcHandler::nextDialog(int npcId)
+{
+    MessageOut outMsg(CMSG_NPC_NEXT_REQUEST);
+    outMsg.writeInt32(npcId);
+}
+
+void NpcHandler::closeDialog(int npcId)
+{
+    MessageOut outMsg(CMSG_NPC_CLOSE);
+    outMsg.writeInt32(npcId);
+
+    NpcDialogs::iterator it = mNpcDialogs.find(npcId);
+    if (it != mNpcDialogs.end())
+    {
+        if ((*it).second.dialog)
+            (*it).second.dialog->close();
+        if ((*it).second.dialog == mDialog)
+            mDialog = nullptr;
+        mNpcDialogs.erase(it);
+    }
+}
+
+void NpcHandler::listInput(int npcId, unsigned char value)
+{
+    MessageOut outMsg(CMSG_NPC_LIST_CHOICE);
+    outMsg.writeInt32(npcId);
+    outMsg.writeInt8(value);
+}
+
+void NpcHandler::integerInput(int npcId, int value)
+{
+    MessageOut outMsg(CMSG_NPC_INT_RESPONSE);
+    outMsg.writeInt32(npcId);
+    outMsg.writeInt32(value);
+}
+
+void NpcHandler::stringInput(int npcId, const std::string &value)
+{
+    MessageOut outMsg(CMSG_NPC_STR_RESPONSE);
+    outMsg.writeInt16(static_cast<int16_t>(value.length() + 9));
+    outMsg.writeInt32(npcId);
+    outMsg.writeString(value, static_cast<int>(value.length()));
+    outMsg.writeInt8(0); // Prevent problems with string reading
+}
+
+void NpcHandler::buy(int beingId)
+{
+    MessageOut outMsg(CMSG_NPC_BUY_SELL_REQUEST);
+    outMsg.writeInt32(beingId);
+    outMsg.writeInt8(0); // Buy
+}
+
+void NpcHandler::sell(int beingId)
+{
+    MessageOut outMsg(CMSG_NPC_BUY_SELL_REQUEST);
+    outMsg.writeInt32(beingId);
+    outMsg.writeInt8(1); // Sell
+}
+
+void NpcHandler::buyItem(int beingId A_UNUSED, int itemId,
+                         unsigned char color, int amount)
+{
+    MessageOut outMsg(CMSG_NPC_BUY_REQUEST);
+    if (serverVersion > 0)
+    {
+        outMsg.writeInt16(10); // One item (length of packet)
+        outMsg.writeInt16(static_cast<int16_t>(amount));
+        outMsg.writeInt16(static_cast<int16_t>(itemId));
+        outMsg.writeInt8(color);
+        outMsg.writeInt8(0);
+    }
+    else
+    {
+        outMsg.writeInt16(8); // One item (length of packet)
+        outMsg.writeInt16(static_cast<int16_t>(amount));
+        outMsg.writeInt16(static_cast<int16_t>(itemId));
+    }
+}
+
+void NpcHandler::sellItem(int beingId A_UNUSED, int itemId, int amount)
+{
+    MessageOut outMsg(CMSG_NPC_SELL_REQUEST);
+    outMsg.writeInt16(8); // One item (length of packet)
+    outMsg.writeInt16(static_cast<int16_t>(itemId + INVENTORY_OFFSET));
+    outMsg.writeInt16(static_cast<int16_t>(amount));
+}
+
+int NpcHandler::getNpc(Net::MessageIn &msg, bool haveLength)
+{
+    if (haveLength)
+        msg.readInt16();  // length
+
+    const int npcId = msg.readInt32();
+
+    NpcDialogs::const_iterator diag = mNpcDialogs.find(npcId);
+    mDialog = nullptr;
+
+    if (diag == mNpcDialogs.end())
+    {
+        // Empty dialogs don't help
+        if (msg.getId() == SMSG_NPC_CLOSE)
+        {
+            closeDialog(npcId);
+            return npcId;
+        }
+        else if (msg.getId() == SMSG_NPC_NEXT)
+        {
+            nextDialog(npcId);
+            return npcId;
+        }
+        else
+        {
+            mDialog = new NpcDialog(npcId);
+            mDialog->saveCamera();
+            if (player_node)
+                player_node->stopWalking(false);
+            Wrapper wrap;
+            wrap.dialog = mDialog;
+            mNpcDialogs[npcId] = wrap;
+        }
+    }
+    else
+    {
+        if (mDialog && mDialog != diag->second.dialog)
+            mDialog->restoreCamera();
+        mDialog = diag->second.dialog;
+        if (mDialog)
+            mDialog->saveCamera();
+    }
+    return npcId;
+}
+
+void NpcHandler::processNpcCommand(Net::MessageIn &msg, int npcId)
+{
+    const int cmd = msg.readInt16();
+    switch (cmd)
+    {
+        case 0:
+            mRequestLang = true;
+            break;
+
+        case 1:
+            if (viewport)
+                viewport->moveCameraToActor(npcId);
+            break;
+
+        case 2:
+            if (viewport)
+            {
+                const int id = msg.readInt32();
+                const int x = msg.readInt16();
+                const int y = msg.readInt16();
+                if (!id)
+                    viewport->moveCameraToPosition(x, y);
+                else
+                    viewport->moveCameraToActor(id, x, y);
+            }
+            break;
+
+        case 3:
+            if (viewport)
+                viewport->returnCamera();
+            break;
+
+        case 4:
+            if (viewport)
+            {
+                msg.readInt32(); // id
+                const int x = msg.readInt16();
+                const int y = msg.readInt16();
+                viewport->moveCameraRelative(x, y);
+            }
+            break;
+        case 5:
+            closeDialog(npcId);
+            break;
+
+        default:
+            logger->log("unknown npc command: %d", cmd);
+            break;
+    }
+}
+
+void NpcHandler::processLangReuqest(Net::MessageIn &msg A_UNUSED, int npcId)
+{
+    mRequestLang = false;
+    stringInput(npcId, getLangSimple());
+}
+
+} // namespace EAthena