CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAudio/plSoundEvent.cpp

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//////////////////////////////////////////////////////////////////////////////
//                                                                          //
//  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;
}