bool AINodeValidatorOwnerNotLocked::Evaluate( AINode* pNode, uint32 dwFilteredStatusFlags, CAI* pAI ) const
{
if( dwFilteredStatusFlags & kNodeStatus_OwnerNotLocked )
{
// Sanity check.
if( !( pNode && pAI ) )
{
return false;
}
// Node has an owner.
if( IsAINode( pNode->GetNodeOwner() ) )
{
// Fail if owner is not locked.
AINode* pOwner = (AINode*)g_pLTServer->HandleToObject( pNode->GetNodeOwner() );
if( pOwner && !pOwner->IsNodeLocked() )
{
return false;
}
// Fail if owner is locked by someone else.
if( pOwner && ( pOwner->GetLockingAI() != pAI->m_hObject ) )
{
return false;
}
}
}
return true;
}
int operator()(CAIWMFact* pFact)
{
// Ignore facts that are not node facts.
// Ignore node facts with the wrong node type.
// Ignore node facts whose object matches the hExclude.
if( ( pFact->GetFactType() != kFact_Node ) ||
( pFact->GetNodeType() != kNode_Stalk ))
{
return 0;
}
AINode* pNode = AINode::HandleToObject( pFact->GetTargetObject() );
if( !pNode )
{
return 0;
}
// Bail if node is locked by someone else, disabled, or timed out.
// TODO: Handle the AI locking the node. This can work when code to
// handle an invalid node is written.
if (pNode->GetHOBJECT() == m_hIgnoreStalkingNode)
{
return false;
}
if (pNode->IsNodeLocked()/* && pNode->GetLockingAI() != m_pAI->GetHOBJECT()*/)
{
return false;
}
if( pNode->IsNodeDisabled() || pNode->IsNodeTimedOut() )
{
return false;
}
// Require the AI be in the radius or region
if (!pNode->IsAIInRadiusOrRegion( m_pAI, m_pAI->GetPosition(), 1.f ))
{
return 0;
}
// If AI is aware of a threat, ignore nodes that are invalid.
if( m_hThreat &&
( !pNode->IsNodeValid( m_pAI, m_pAI->GetPosition(), m_hThreat, kThreatPos_TargetPos, kNodeStatus_All ^ kNodeStatus_ThreatOutsideFOV) ) )
{
return 0;
}
// Failed to find a valid destination position.
LTVector vDestination;
if (!pNode->GetDestinationPosition(m_pAI, m_pAI->GetAIBlackBoard()->GetBBTargetPosition(), vDestination))
{
return 0;
}
// The stalking position is further from the AIs goal than the AI
// currently is (don't run backwards to stalk).
float flNodeDestToAIDestDistSqr = vDestination.DistSqr(m_pAI->GetAIBlackBoard()->GetBBTargetReachableNavMeshPosition());
if (flNodeDestToAIDestDistSqr > m_flDistanceToDestinationSqr)
{
return 0;
}
// Node is behind the AI.
if (0 > m_pAI->GetForwardVector().Dot( vDestination - m_pAI->GetPosition()))
{
return 0;
}
// Already found a closer node.
float flDistanceFromAISqr = vDestination.DistSqr(m_pAI->GetPosition());
if (flDistanceFromAISqr > m_flBestDistanceFromAISqr)
{
return 0;
}
m_vBestPosition = vDestination;
m_flBestDistanceFromAISqr = flDistanceFromAISqr;
m_pBestFact = pFact;
return 0;
}