CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAudio/plSoundEvent.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==*/
//////////////////////////////////////////////////////////////////////////////
//																			//
//	plSoundEvent															//
//																			//
//// Notes ///////////////////////////////////////////////////////////////////
//																			//
//	10.30.2001 - Created by mcn.											//
//																			//
//////////////////////////////////////////////////////////////////////////////

#include "hsTypes.h"
#include "plSoundEvent.h"

#include "plgDispatch.h"
#include "pnMessage/plEventCallbackMsg.h"
#include "pnMessage/plSoundMsg.h"
#include "plSound.h"

plSoundEvent::plSoundEvent( Types type, plSound *owner )
{
	fType = type;
	fBytePosTime = 0;
	fOwner = owner;
	fCallbacks.Reset();
	fCallbackEndingFlags.Reset();
}

plSoundEvent::plSoundEvent( Types type, UInt32 bytePos, plSound *owner )
{
	fType = type;
	fBytePosTime = bytePos;
	fOwner = owner;
	fCallbacks.Reset();
	fCallbackEndingFlags.Reset();
}

plSoundEvent::plSoundEvent()
{
	fType = kStart;
	fBytePosTime = 0;
	fOwner = nil;
	fCallbacks.Reset();
	fCallbackEndingFlags.Reset();
}

plSoundEvent::~plSoundEvent()
{
	int		i;


	for( i = 0; i < fCallbacks.GetCount(); i++ )
		hsRefCnt_SafeUnRef( fCallbacks[ i ] ); 
}

void	plSoundEvent::AddCallback( plEventCallbackMsg *msg )
{
	hsRefCnt_SafeRef( msg ); 
	fCallbacks.Append( msg );
	fCallbackEndingFlags.Append( 0 );
}

hsBool	plSoundEvent::RemoveCallback( plEventCallbackMsg *msg )
{
	int idx = fCallbacks.Find( msg );
	if( idx != fCallbacks.kMissingIndex )
	{
		hsRefCnt_SafeUnRef( msg ); 
		fCallbacks.Remove( idx );
		fCallbackEndingFlags.Remove( idx );
		return true;
	}

	return false;
}

void	plSoundEvent::SendCallbacks( void )
{
	int			j;
	plSoundMsg	*sMsg;


	for( j = fCallbacks.GetCount() - 1; j >= 0; j-- )
	{
		plEventCallbackMsg *msg = fCallbacks[ j ];
		
		if (!msg->HasBCastFlag(plMessage::kNetPropagate) || !fOwner ||
			fOwner->IsLocallyOwned() == plSynchedObject::kYes )		
		{
			/// Do this a bit differently so we can do our MsgSend last
			sMsg = nil;

			// Ref to make sure the dispatcher doesn't delete it on us
			hsRefCnt_SafeRef( msg );
			if( msg->fRepeats == 0 && fCallbackEndingFlags[ j ] == 0 )
			{
				// Note: we get fancy here. We never want to remove the callback directly,
				// because the sound won't know about it. So instead, send it a message to
				// remove the callback for us
				sMsg = TRACKED_NEW plSoundMsg();
				sMsg->SetBCastFlag( plMessage::kLocalPropagate, true );
				sMsg->AddReceiver( fOwner->GetKey() );
				sMsg->SetCmd( plSoundMsg::kRemoveCallbacks );
				sMsg->AddCallback( msg );
			}

			// If this isn't infinite, decrement the number of repeats
			if( msg->fRepeats > 0 )
				msg->fRepeats--;

			// And finally...
			if( fCallbackEndingFlags[ j ] == 0 )
			{
				plgDispatch::MsgSend( msg, true );
			}

			if( sMsg != nil )
			{
				plgDispatch::MsgSend( sMsg, true );
				fCallbackEndingFlags[ j ] = 0xff;		// Our special flag to mean "hey, don't
														// process this, just waiting for 
														// it to die"
			}
		}
	}
}

UInt32	plSoundEvent::GetNumCallbacks( void ) const
{
	return fCallbacks.GetCount();
}

int	plSoundEvent::GetType( void ) const
{
	return (int)fType;
}

void	plSoundEvent::SetType( Types type )
{
	fType = type;
}

UInt32	plSoundEvent::GetTime( void ) const
{
	return fBytePosTime;
}

plSoundEvent::Types	plSoundEvent::GetTypeFromCallbackMsg( plEventCallbackMsg *msg )
{
	switch( msg->fEvent )
	{
		case ::kStart: return kStart;
		case ::kTime: return kTime;
		case ::kStop: return kStop;
		case ::kLoop: return kLoop;
	}

	return kStop;
}