CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAvatar/plAvBrainDrive.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 includes
#include "plAvBrainDrive.h"
#include "plArmatureMod.h"
#include "plAvCallbackAction.h"

// global includes
#include "hsTimer.h"
#include "hsGeometry3.h"

// other includes
#include "hsQuat.h"
#include "plMessage/plSimStateMsg.h"
#include "pnMessage/plCameraMsg.h"

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

// CTOR default
plAvBrainDrive::plAvBrainDrive()
: fMaxVelocity(20), fTurnRate(1)
{

}

// CTOR max velocity, turn rate
plAvBrainDrive::plAvBrainDrive(hsScalar maxVelocity, hsScalar turnRate)
: fMaxVelocity(maxVelocity), fTurnRate(turnRate)
{
}

// ACTIVATE
void plAvBrainDrive::Activate(plArmatureModBase *avMod)
{
    plArmatureBrain::Activate(avMod);

    IEnablePhysics(false, avMod->GetTarget(0)->GetKey());
    plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
    pMsg->SetCmd(plCameraMsg::kNonPhysOn);
    pMsg->SetBCastFlag(plMessage::kBCastByExactType);
    pMsg->Send();               
}

// DEACTIVATE
void plAvBrainDrive::Deactivate()
{
    if (fAvMod)
    {   
        IEnablePhysics(true, fAvMod->GetTarget(0)->GetKey());
        plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
        pMsg->SetCmd(plCameraMsg::kNonPhysOff);
        pMsg->SetBCastFlag(plMessage::kBCastByExactType);
        pMsg->Send();               
    }
}

void plAvBrainDrive::IEnablePhysics(bool enable, plKey avKey)
{
    fAvMod->EnablePhysics(enable);
}

// APPLY
hsBool plAvBrainDrive::Apply(double timeNow, hsScalar elapsed)
{
    plSceneObject * avSO = fAvMod->GetTarget(0);
    hsScalar eTime = hsTimer::GetDelSysSeconds();
    hsMatrix44 targetMatrix = avSO->GetLocalToWorld();

    hsPoint3 playerPos = targetMatrix.GetTranslate();
    hsVector3 view, up, right;
    targetMatrix.GetAxis(&view, &up, &right);
    hsScalar speed = fMaxVelocity;
    hsScalar turn = fTurnRate;

    if (fAvMod->FastKeyDown())
    {
        turn *= 0.25;
        speed *= 3.5;
    }
    if (fAvMod->GetInputFlag(B_CONTROL_MOVE_FORWARD))
    {
        playerPos += view * speed * eTime;
    }
    if (fAvMod->GetInputFlag(B_CONTROL_MOVE_BACKWARD))
    {
        playerPos += view * speed * eTime * -1;
    }
    if (fAvMod->StrafeLeftKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnLeftKeyDown()))
    {
        playerPos += right * speed * eTime * -1;
    }
    if (fAvMod->StrafeRightKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnRightKeyDown()))
    {
        playerPos += right * speed * eTime;
    }
    if (fAvMod->GetInputFlag(B_CONTROL_MOVE_DOWN))
    {
        playerPos += up * speed * eTime * -1;
    }
    if (fAvMod->GetInputFlag(B_CONTROL_MOVE_UP))
    {
        playerPos += up * speed * eTime;
    }

    hsPoint3 desiredPosition = playerPos;
    // calculate rotation matrix

    hsVector3 rotUp(0,0,1);
    hsVector3 rotRight(1,0,0);
    hsMatrix44 rot;
    hsScalar angle = 0;

    if ( fAvMod->GetInputFlag( B_CONTROL_ROTATE_RIGHT ) || fAvMod->GetInputFlag( B_CONTROL_ROTATE_LEFT ) || fAvMod->GetInputFlag( A_CONTROL_TURN ) )
    {
        angle = fTurnRate * eTime * fAvMod->GetTurnStrength();
    }

    hsMatrix44 justRot(targetMatrix);
    hsPoint3 zero(0,0,0);
    justRot.SetTranslate(&zero);

    if( angle ) {
        hsQuat q( angle, &rotUp );  
        q.NormalizeIfNeeded();
        q.MakeMatrix( &rot );

        justRot = rot * justRot;

        targetMatrix = rot * targetMatrix;
    }

    // use the desired rotation matrix to set position and rotation:
    hsMatrix44 inv;
    targetMatrix.SetTranslate( &desiredPosition );
    targetMatrix.GetInverse( &inv );
    avSO->SetTransform( targetMatrix, inv );
    avSO->FlushTransform();

    return true;
}

// IHANDLECONTROLMSG
hsBool plAvBrainDrive::MsgReceive(plMessage* msg)
{
    plControlEventMsg *ctrlMsg = plControlEventMsg::ConvertNoRef(msg);
    if(ctrlMsg)
    {
        if( ctrlMsg->ControlActivated() )
        {
            if(ctrlMsg->GetControlCode() == B_CONTROL_TOGGLE_PHYSICAL)
            {
                fAvMod->PopBrain();
                return true;
            }
        }
    }
    return false;
}