//-----------------------------------------------------------------------------
// Purpose: Used to specify that the NPC has a reason not to use the a navigation node
// Input :
// Output :
//-----------------------------------------------------------------------------
bool CAI_BaseNPC::IsUnusableNode(int iNodeID, CAI_Hint *pHint)
{
if ( m_bHintGroupNavLimiting && m_strHintGroup != NULL_STRING && STRING(m_strHintGroup)[0] != 0 )
{
if (!pHint || pHint->GetGroup() != GetHintGroup())
{
return true;
}
}
return false;
}
//-----------------------------------------------------------------------------
// Purpose: Is squad member in my way from shooting here
// Input :
// Output :
//-----------------------------------------------------------------------------
bool CAI_BaseNPC::IsValidShootPosition ( const Vector &vecShootLocation, CAI_Hint const *pHint )
{
// limit choices to hint groups
if (GetHintGroup() != NULL_STRING)
{
if (!pHint || pHint->GetGroup() != GetHintGroup())
{
return false;
}
}
/*
if ( m_pSquad )
{
return m_pSquad->IsValidShootPosition( vecShootLocation, pHint );
}
*/
return true;
}
//------------------------------------------------------------------------------
// Purpose : Is cover node valid
// Input :
// Output :
//------------------------------------------------------------------------------
bool CAI_BaseNPC::IsValidCover( const Vector &vecCoverLocation, CAI_Hint const *pHint )
{
// firstly, limit choices to hint groups
string_t iszHint = GetHintGroup();
char *pszHint = (char *)STRING(iszHint);
if ((iszHint != NULL_STRING) && (pszHint[0] != '\0'))
{
if (!pHint || pHint->GetGroup() != GetHintGroup())
{
return false;
}
}
/*
// If I'm in a squad don't pick cover node it other squad member
// is already nearby
if (m_pSquad)
{
return m_pSquad->IsValidCover( vecCoverLocation, pHint );
}
*/
// UNDONE: Do we really need this test?
// ----------------------------------------------------------------
// Make sure my hull can fit at this node before accepting it.
// Could be another NPC there or it could be blocked
// ----------------------------------------------------------------
// FIXME: shouldn't this see that if I crouch behind it it'll be safe?
Vector startPos = vecCoverLocation;
startPos.z -= GetHullMins().z; // Move hull bottom up to node
Vector endPos = startPos;
endPos.z += 0.01;
trace_t tr;
AI_TraceEntity( this, vecCoverLocation, endPos, MASK_NPCSOLID, &tr );
if (tr.startsolid)
{
return false;
}
return true;
}
