/*==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/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

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==*/
#include "cyCamera.h"

#include "../pnMessage/plCameraMsg.h"
#include "../plMessage/plInputEventMsg.h"
#include "../pnKeyedObject/plFixedKey.h"
#include "../pnKeyedObject/plUoid.h"
#include "hsResMgr.h"
#include "pyKey.h"
#include "plgDispatch.h"

#include "../pfCamera/plVirtualCamNeu.h"
#include "../pfCamera/plCameraModifier.h"
#include "../pfCamera/plCameraBrain.h"

cyCamera::cyCamera()
{
	// get _the_ virtual camera
	plUoid pU( kVirtualCamera1_KEY );
	hsResMgr* hrm = hsgResMgr::ResMgr();
	if ( hrm)
		fTheCam = hrm->FindKey( pU );
	else
		fTheCam = nil;
}

// setters
void cyCamera::SetSender(plKey &sender)
{
	fSender = sender;
}


/////////////////////////////////////////////////////////////////////////////
//
//  Function   : Push
//  PARAMETERS :
//
//  PURPOSE    : Save the current state of the virtual camera
//
// NOTE: doesn't work by itself at the moment
//
void cyCamera::Push(pyKey& newCamKey)
{
	// create message
	plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
	if ( fSender )
		pMsg->SetSender(fSender);

	// if we're sending to the virtual camera
	if ( fTheCam )
		pMsg->AddReceiver(fTheCam);
	else
		// otherwise, broadcast by type
		pMsg->SetBCastFlag(plMessage::kBCastByType);

	// set command to do the transition
	pMsg->SetCmd(plCameraMsg::kResponderTrigger);
	pMsg->SetCmd(plCameraMsg::kRegionPushCamera);
	// set the new camera
	pMsg->SetNewCam(newCamKey.getKey());

	plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
}

/////////////////////////////////////////////////////////////////////////////
//
//  Function   : Pop
//  PARAMETERS :
//
//  PURPOSE    : Restore the state of the virtual camera with a previously saved setting
//
void cyCamera::Pop(pyKey& oldCamKey)
{
	// create message
	plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
	if ( fSender )
		pMsg->SetSender(fSender);

	// if we're sending to the virtual camera
	if ( fTheCam )
		pMsg->AddReceiver(fTheCam);
	else
		// otherwise, broadcast by type
		pMsg->SetBCastFlag(plMessage::kBCastByType);

	// set command to undo the camera... somehow not saying ResponderTrigger but Push means Pop...whatever
	pMsg->SetCmd(plCameraMsg::kRegionPushCamera);
	// set the new camera
	pMsg->SetNewCam(oldCamKey.getKey());

	plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
}

/////////////////////////////////////////////////////////////////////////////
//
//  Function   : ControlKey
//  PARAMETERS : controlKey  - what command key to simulate being hit
//             : activate    - whether its being pressed or released (activated or deactivated)
//
//  PURPOSE    : Send controlKey commands to the virtual camera (should be like a pass thru)
//
void cyCamera::ControlKey(Int32 controlKey, hsBool activated)
{
	// make sure that we have a virtual camera to send this to
	if ( fTheCam )
	{
		plControlEventMsg* pMsg = TRACKED_NEW plControlEventMsg;
		// set sender if there is one
		if ( fSender )
			pMsg->SetSender(fSender);

		// if we're sending to the virtual camera
		pMsg->AddReceiver(fTheCam);

		// set the control key and activateFlag
		pMsg->SetControlCode((ControlEventCode)controlKey);
		pMsg->SetControlActivated(activated);

		plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
	}
}


/////////////////////////////////////////////////////////////////////////////
//
//  Function   : TransitionTo
//  PARAMETERS : newCamKey  - what to switch the camera to
//             : time       - how long it takes to transition to new camera
//
//  PURPOSE    : Transition to a new camera (position and settings)
//
void cyCamera::TransitionTo(pyKey& newCamKey, double time, hsBool save)
{
	// create message
	plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
	if ( fSender )
		pMsg->SetSender(fSender);
	// must have a receiver!
	if ( fTheCam )
	{
		pMsg->AddReceiver(fTheCam);
		// set command to do the transition
		pMsg->SetCmd(plCameraMsg::kTransitionTo);
		// set the new camera
		pMsg->SetNewCam(newCamKey.getKey());
		// set the transition time
		pMsg->SetTransTime(time);
		// test to see if they want to save
		if ( save )
			pMsg->SetCmd(plCameraMsg::kPush);

		plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
	}
}

void cyCamera::SetEnableFirstPersonOverride(hsBool state)
{
	// must have a receiver!
	if ( fTheCam )
	{
		// create message
		plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
		if ( fSender )
			pMsg->SetSender(fSender);

		pMsg->AddReceiver(fTheCam);
		// set command to do the transition
		pMsg->SetCmd(plCameraMsg::kPythonSetFirstPersonOverrideEnable);
		// set the state
		pMsg->SetActivated(state);

		plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
	}
}


void cyCamera::UndoFirstPerson()
{
	// create message
	plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
	if ( fSender )
		pMsg->SetSender(fSender);
	// must have a receiver!
	if ( fTheCam )
	{
		pMsg->AddReceiver(fTheCam);
		// set command to do the transition
		pMsg->SetCmd(plCameraMsg::kPythonUndoFirstPerson);

		plgDispatch::MsgSend( pMsg );	// whoosh... off it goes
	}
}


hsScalar cyCamera::GetFOV()
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			plCameraModifier1* curCam = virtCam->GetCurrentCamera();
			if ( curCam )
			{
				return curCam->GetFOVh();
			}
		}
	}
	return 0.0;
}

void cyCamera::SetFOV(hsScalar fov, double t)
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			plCameraModifier1* curCam = virtCam->GetCurrentCamera();
			if ( curCam )
			{
				plCameraBrain1*	camBrain = curCam->GetBrain();
				if (camBrain)
				{
					camBrain->SetFOVGoal(0.f,fov,t);
				}
			}
		}
	}
}


void cyCamera::SetSmootherCam(hsBool state)
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			if (state)
			{
				virtCam->fUseAccelOverride = false;
			}
			else
			{
				virtCam->fAccel = 50.0;
				virtCam->fDecel = 50.0;
				virtCam->fVel = 100.0;
				virtCam->fUseAccelOverride = true;
			}

		}
	}
}

hsBool cyCamera::IsSmootherCam()
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			if ( virtCam->fUseAccelOverride )
				return false;
			else
				return true;
		}

	}
	return false;
}

void cyCamera::SetWalkAndVerticalPan(hsBool state)
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			if (state)
				virtCam->WalkPan3rdPerson = true;
			else
				virtCam->WalkPan3rdPerson = false;

		}
	}
}


hsBool cyCamera::IsWalkAndVerticalPan()
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			return virtCam->WalkPan3rdPerson;
		}
	}
	return false;
}


void cyCamera::SetStayInFirstPerson(hsBool state)
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			if (state)
				virtCam->StayInFirstPersonForever = true;
			else
				virtCam->StayInFirstPersonForever = false;
		}
	}
}

hsBool cyCamera::IsStayInFirstPerson()
{
	if ( fTheCam )
	{
		plVirtualCam1* virtCam = plVirtualCam1::ConvertNoRef( fTheCam->ObjectIsLoaded() );
		if ( virtCam )
		{
			return virtCam->StayInFirstPersonForever;
		}
	}
	return false;
}

void cyCamera::RefreshFOV()
{

	plCameraMsg* pMsg = new plCameraMsg();
	pMsg->SetSender(fSender);
	pMsg->SetCmd(plCameraMsg::kRefreshFOV);
	pMsg->Send(fTheCam);

}