// ==========================================================
// given a start node and a list of goal nodes
// calculate the distance between each
// ==========================================================
void CTeamTrainWatcher::WatcherActivate( void )
{
m_flRecedeTime = 0;
m_bWaitingToRecede = false;
m_bCapBlocked = false;
m_flNextSpeakForwardConceptTime = 0;
m_hAreaCap = NULL;
m_flTrainDistanceFromStart = 0.0f;
m_bAlarmPlayed = false;
m_Sparks.Purge();
StopCaptureAlarm();
// init our train
m_hTrain = dynamic_cast<CFuncTrackTrain*>( gEntList.FindEntityByName( NULL, m_iszTrain ) );
if ( !m_hTrain )
{
Warning("%s failed to find train named '%s'\n", GetClassname(), STRING( m_iszTrain ) );
}
// find the trigger area that will give us movement updates and find the sparks (if we're going to handle the train movement)
if ( m_bHandleTrainMovement )
{
if ( m_hTrain )
{
CTriggerAreaCapture *pArea = dynamic_cast<CTriggerAreaCapture *>( gEntList.FindEntityByClassname( NULL, "trigger_capture_area" ) );
while( pArea )
{
if ( pArea->GetParent() == m_hTrain.Get() )
{
// this is the capture area we care about, so let it know that we want updates on the capture numbers
pArea->SetTrainWatcher( this );
break;
}
pArea = dynamic_cast<CTriggerAreaCapture *>( gEntList.FindEntityByClassname( pArea, "trigger_capture_area" ) );
}
}
// init the sprites (if any)
CEnvSpark *pSpark = dynamic_cast<CEnvSpark*>( gEntList.FindEntityByName( NULL, m_iszSparkName ) );
while ( pSpark )
{
m_Sparks.AddToTail( pSpark );
pSpark = dynamic_cast<CEnvSpark*>( gEntList.FindEntityByName( pSpark, m_iszSparkName ) );
}
}
// init our array of path_tracks linked to control points
m_iNumCPLinks = 0;
int i;
for ( i = 0 ; i < MAX_CONTROL_POINTS ; i++ )
{
CPathTrack *pPathTrack = dynamic_cast<CPathTrack*>( gEntList.FindEntityByName( NULL, m_iszLinkedPathTracks[i] ) );
CTeamControlPoint *pCP = dynamic_cast<CTeamControlPoint*>( gEntList.FindEntityByName( NULL, m_iszLinkedCPs[i] ) );
if ( pPathTrack && pCP )
{
m_CPLinks[m_iNumCPLinks].hPathTrack = pPathTrack;
m_CPLinks[m_iNumCPLinks].hCP = pCP;
m_CPLinks[m_iNumCPLinks].flDistanceFromStart = 0; // filled in when we parse the nodes
m_CPLinks[m_iNumCPLinks].bAlertPlayed = false;
m_iNumCPLinks++;
}
}
// init our start and goal nodes
m_hStartNode = dynamic_cast<CPathTrack*>( gEntList.FindEntityByName( NULL, m_iszStartNode ) );
if ( !m_hStartNode )
{
Warning("%s failed to find path_track named '%s'\n", GetClassname(), STRING(m_iszStartNode) );
}
m_hGoalNode = dynamic_cast<CPathTrack*>( gEntList.FindEntityByName( NULL, m_iszGoalNode ) );
if ( !m_hGoalNode )
{
Warning("%s failed to find path_track named '%s'\n", GetClassname(), STRING(m_iszGoalNode) );
}
m_flTotalPathDistance = 0.0f;
CUtlVector< float > hillData;
bool bOnHill = false;
bool bDownHillData[TEAM_TRAIN_MAX_HILLS];
Q_memset( bDownHillData, 0, sizeof( bDownHillData ) );
int iHillCount = 0;
if( m_hStartNode.Get() && m_hGoalNode.Get() )
{
CPathTrack *pNode = m_hStartNode;
CPathTrack *pPrev = pNode;
CPathTrack *pHillStart = NULL;
pNode = pNode->GetNext();
int iHillType = HILL_TYPE_NONE;
// don't check the start node for links. If it's linked, it will have 0 distance anyway
while ( pNode )
{
Vector dir = pNode->GetLocalOrigin() - pPrev->GetLocalOrigin();
float length = dir.Length();
m_flTotalPathDistance += length;
// gather our hill data for the HUD
if ( pNode->GetHillType() != iHillType )
{
if ( !bOnHill ) // we're at the start of a hill
{
hillData.AddToTail( m_flTotalPathDistance );
bOnHill = true;
pHillStart = pNode;
if ( iHillCount < TEAM_TRAIN_MAX_HILLS )
{
bDownHillData[iHillCount] = pNode->IsDownHill() ? true : false;
iHillCount++;
}
}
else // we're at the end of a hill
{
float flDistance = m_flTotalPathDistance - length; // subtract length because the prev node was the end of the hill (not this one)
if ( pHillStart && ( pHillStart == pPrev ) )
{
flDistance = m_flTotalPathDistance; // we had a single node marked as a hill, so we'll use the current distance as the next marker
}
hillData.AddToTail( flDistance );
// is our current node the start of another hill?
if ( pNode->GetHillType() != HILL_TYPE_NONE )
{
hillData.AddToTail( m_flTotalPathDistance );
bOnHill = true;
pHillStart = pNode;
if ( iHillCount < TEAM_TRAIN_MAX_HILLS )
{
bDownHillData[iHillCount] = pNode->IsDownHill() ? true : false;
iHillCount++;
}
}
else
{
bOnHill = false;
pHillStart = NULL;
}
}
iHillType = pNode->GetHillType();
}
// if pNode is one of our cp nodes, store its distance from m_hStartNode
for ( i = 0 ; i < m_iNumCPLinks ; i++ )
{
if ( m_CPLinks[i].hPathTrack == pNode )
{
m_CPLinks[i].flDistanceFromStart = m_flTotalPathDistance;
break;
}
}
if ( pNode == m_hGoalNode )
break;
pPrev = pNode;
pNode = pNode->GetNext();
}
}
// if we don't have an even number of entries in our hill data (beginning/end) add the final distance
if ( ( hillData.Count() % 2 ) != 0 )
{
hillData.AddToTail( m_flTotalPathDistance );
}
if ( ObjectiveResource() )
{
ObjectiveResource()->ResetHillData( GetTeamNumber() );
// convert our hill data into 0-1 percentages for networking
if ( m_flTotalPathDistance > 0 && hillData.Count() > 0 )
{
i = 0;
while ( i < hillData.Count() )
{
if ( i < TEAM_TRAIN_HILLS_ARRAY_SIZE - 1 ) // - 1 because we want to use 2 entries
{
// add/subtract to the hill start/end to fix rounding errors in the HUD when the train
// stops at the bottom/top of a hill but the HUD thinks the train is still on the hill
ObjectiveResource()->SetHillData( GetTeamNumber(), (hillData[i] / m_flTotalPathDistance) + 0.005f, (hillData[i+1] / m_flTotalPathDistance) - 0.005f, bDownHillData[i/2] );
}
i = i + 2;
}
}
}
// We have total distance and increments in our links array
for ( i=0;i<m_iNumCPLinks;i++ )
{
int iCPIndex = m_CPLinks[i].hCP.Get()->GetPointIndex();
// This can be pulled once DoD includes team_objectiveresource.* and c_team_objectiveresource.*
#ifndef DOD_DLL
ObjectiveResource()->SetTrainPathDistance( iCPIndex, m_CPLinks[i].flDistanceFromStart / m_flTotalPathDistance );
#endif
}
#ifdef GLOWS_ENABLE
FindGlowEntity();
#endif // GLOWS_ENABLE
InternalSetSpeedForwardModifier( m_flSpeedForwardModifier );
SetContextThink( &CTeamTrainWatcher::WatcherThink, gpGlobals->curtime + 0.1, TW_THINK );
}
void CTeamTrainWatcher::FireGameEvent( IGameEvent *event )
{
if ( IsDisabled() || !m_bHandleTrainMovement )
return;
const char *pszEventName = event->GetName();
if ( FStrEq( pszEventName, "path_track_passed" ) )
{
int iIndex = event->GetInt( "index" );
CPathTrack *pNode = dynamic_cast< CPathTrack* >( UTIL_EntityByIndex( iIndex ) );
if ( pNode )
{
bool bHandleEvent = false;
CPathTrack *pTempNode = m_hStartNode.Get();
// is this a node in the track we're watching?
while ( pTempNode )
{
if ( pTempNode == pNode )
{
bHandleEvent = true;
break;
}
pTempNode = pTempNode->GetNext();
}
if ( bHandleEvent )
{
// If we're receding and we've hit a node but the next node (going backwards) is disabled
// the train is going to stop (like at the base of a downhill section) when we start forward
// again we won't pass this node again so don't change our hill state based on this node.
if ( m_bReceding )
{
if ( pNode->GetPrevious() && pNode->GetPrevious()->IsDisabled() )
{
return;
}
}
int iHillType = pNode->GetHillType();
bool bUpdate = ( m_iCurrentHillType != iHillType );
if ( !bUpdate )
{
// the hill settings are the same, but are we leaving an uphill or downhill segment?
if ( m_iCurrentHillType != HILL_TYPE_NONE )
{
// let's peek at the next node
CPathTrack *pNextNode = pNode->GetNext();
if ( m_flCurrentSpeed < 0 )
{
// we're going backwards
pNextNode = pNode->GetPrevious();
}
if ( pNextNode )
{
int iNextHillType = pNextNode->GetHillType();
if ( m_iCurrentHillType != iNextHillType )
{
// we're leaving an uphill or downhill segment...so reset our state until we pass the next node
bUpdate = true;
iHillType = HILL_TYPE_NONE;
}
}
}
}
if ( bUpdate )
{
m_iCurrentHillType = iHillType;
HandleTrainMovement();
}
}
}
}
}