CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAvatar/plAvBrain.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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 3 of the License, or
(at your option) 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/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
// local
#include "plAvBrain.h"
#include "plAvBehaviors.h"
#include "plArmatureMod.h"
#include "plAvatarMgr.h"
#include "plAvatarTasks.h"

// global
#include "hsGeometry3.h"
#include "hsQuat.h"

// other
#include "pnSceneObject/plSceneObject.h"
#include "plPipeline/plDebugText.h"

// messages
#include "plMessage/plAvatarMsg.h"

/////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////

plArmatureBrain::plArmatureBrain() :
    fCurTask(nil),
    fArmature(nil),
    fAvMod(nil)
{
}

plArmatureBrain::~plArmatureBrain()
{
    while (fTaskQueue.size() > 0)
    {
        plAvTask *task = fTaskQueue.front();
        delete task;
        fTaskQueue.pop_front();
    }
    if (fCurTask)
        delete fCurTask;    
}

hsBool plArmatureBrain::Apply(double timeNow, hsScalar elapsed)
{
    IProcessTasks(timeNow, elapsed);
    fArmature->ApplyAnimations(timeNow, elapsed);
    
    return true;
}

void plArmatureBrain::Activate(plArmatureModBase *armature)
{ 
    fArmature = armature;
    fAvMod = plArmatureMod::ConvertNoRef(armature);
}

void plArmatureBrain::QueueTask(plAvTask *task)
{
    if (task)
        fTaskQueue.push_back(task);
}

hsBool plArmatureBrain::LeaveAge()
{
    if (fCurTask)
        fCurTask->LeaveAge(plArmatureMod::ConvertNoRef(fArmature));
    
    plAvTaskQueue::iterator i = fTaskQueue.begin();
    for (; i != fTaskQueue.end(); i++)
    {
        plAvTask *task = *i;
        task->LeaveAge(plArmatureMod::ConvertNoRef(fArmature)); // Give it a chance to do something before we nuke it.
        delete task;
    }
    fTaskQueue.clear();
    return true;
}
    
hsBool plArmatureBrain::IsRunningTask() const
{
    if (fCurTask)
        return true;
    if(fTaskQueue.size() > 0)
        return true;

    return false;
}

// Nothing for this class to read/write. These methods exist
// for backwards compatability with plAvBrain and plAvBrainUser
void plArmatureBrain::Write(hsStream *stream, hsResMgr *mgr)
{
    plCreatable::Write(stream, mgr);
    
    // plAvBrain
    stream->WriteSwap32(0);
    stream->WriteBool(false);

    // plAvBrainUser
    stream->WriteSwap32(0);
    stream->WriteSwapScalar(0.f);
    stream->WriteSwapDouble(0.f);   
}

void plArmatureBrain::Read(hsStream *stream, hsResMgr *mgr)
{
    plCreatable::Read(stream, mgr);

    // plAvBrain
    stream->ReadSwap32();
    if (stream->ReadBool()) 
        mgr->ReadKey(stream);

    // plAvBrainUser
    stream->ReadSwap32();
    stream->ReadSwapScalar();
    stream->ReadSwapDouble();
}

// MSGRECEIVE
hsBool plArmatureBrain::MsgReceive(plMessage * msg)
{
    plAvTaskMsg *taskMsg = plAvTaskMsg::ConvertNoRef(msg);
    if (taskMsg)
    {
        return IHandleTaskMsg(taskMsg);
    }
    return false;
}

void plArmatureBrain::IProcessTasks(double time, hsScalar elapsed)
{
    if (!fCurTask || !fCurTask->Process(plArmatureMod::ConvertNoRef(fArmature), this, time, elapsed))
    {
        if (fCurTask)
        {
            fCurTask->Finish(plArmatureMod::ConvertNoRef(fArmature), this, time, elapsed);
            delete fCurTask;
            fCurTask = nil;
        }
        
        // need a new task
        if (fTaskQueue.size() > 0)
        {
            plAvTask *newTask = fTaskQueue.front();
            if (newTask && newTask->Start(plArmatureMod::ConvertNoRef(fArmature), this, time, elapsed))
            {
                fCurTask = newTask;
                fTaskQueue.pop_front();
            }
            // if we couldn't start the task, we'll keep trying until we can.
        }
    }
}

hsBool plArmatureBrain::IHandleTaskMsg(plAvTaskMsg *msg)
{
    plAvTask *task = msg->GetTask();
    QueueTask(task);
    return true;
}