CCmpCommandQueue.cpp

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/* Copyright (C) 2010 Wildfire Games.
 * This file is part of 0 A.D.
 *
 * 0 A.D. 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
 * (at your option) any later version.
 *
 * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "precompiled.h"

#include "simulation2/system/Component.h"
#include "ICmpCommandQueue.h"

#include "ps/CLogger.h"
#include "ps/Game.h"
#include "network/NetTurnManager.h"

class CCmpCommandQueue : public ICmpCommandQueue
{
public:
    static void ClassInit(CComponentManager& UNUSED(componentManager))
    {
    }

    DEFAULT_COMPONENT_ALLOCATOR(CommandQueue)

    std::vector<SimulationCommand> m_LocalQueue;

    static std::string GetSchema()
    {
        return "<a:component type='system'/><empty/>";
    }

    virtual void Init(const CParamNode& UNUSED(paramNode))
    {
    }

    virtual void Deinit()
    {
    }

    virtual void Serialize(ISerializer& serialize)
    {
        serialize.NumberU32_Unbounded("num commands", (u32)m_LocalQueue.size());
        for (size_t i = 0; i < m_LocalQueue.size(); ++i)
        {
            serialize.NumberI32_Unbounded("player", m_LocalQueue[i].player);
            serialize.ScriptVal("data", m_LocalQueue[i].data.get());
        }
    }

    virtual void Deserialize(const CParamNode& UNUSED(paramNode), IDeserializer& deserialize)
    {
        u32 numCmds;
        deserialize.NumberU32_Unbounded("num commands", numCmds);
        for (size_t i = 0; i < numCmds; ++i)
        {
            i32 player;
            CScriptValRooted data;
            deserialize.NumberI32_Unbounded("player", player);
            deserialize.ScriptVal("data", data);
            SimulationCommand c = { player, data };
            m_LocalQueue.push_back(c);
        }
    }

    virtual void PushLocalCommand(player_id_t player, CScriptVal cmd)
    {
        JSContext* cx = GetSimContext().GetScriptInterface().GetContext();

        SimulationCommand c = { player, CScriptValRooted(cx, cmd) };
        m_LocalQueue.push_back(c);
    }

    virtual void PostNetworkCommand(CScriptVal cmd)
    {
        JSContext* cx = GetSimContext().GetScriptInterface().GetContext();

        PROFILE2_EVENT("post net command");
        PROFILE2_ATTR("command: %s", GetSimContext().GetScriptInterface().StringifyJSON(cmd.get(), false).c_str());

        // TODO: would be nicer to not use globals
        if (g_Game && g_Game->GetTurnManager())
            g_Game->GetTurnManager()->PostCommand(CScriptValRooted(cx, cmd));
    }

    virtual void FlushTurn(const std::vector<SimulationCommand>& commands)
    {
        ScriptInterface& scriptInterface = GetSimContext().GetScriptInterface();

        std::vector<SimulationCommand> localCommands;
        m_LocalQueue.swap(localCommands);

        for (size_t i = 0; i < localCommands.size(); ++i)
        {
            bool ok = scriptInterface.CallFunctionVoid(scriptInterface.GetGlobalObject(), "ProcessCommand", localCommands[i].player, localCommands[i].data);
            if (!ok)
                LOGERROR(L"Failed to call ProcessCommand() global script function");
        }

        for (size_t i = 0; i < commands.size(); ++i)
        {
            bool ok = scriptInterface.CallFunctionVoid(scriptInterface.GetGlobalObject(), "ProcessCommand", commands[i].player, commands[i].data);
            if (!ok)
                LOGERROR(L"Failed to call ProcessCommand() global script function");
        }
    }
};

REGISTER_COMPONENT_TYPE(CommandQueue)