//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
CAI_Hint *CAI_FearBehavior::FindFearWithdrawalDest()
{
CAI_Hint *pHint;
CHintCriteria hintCriteria;
CAI_BaseNPC *pOuter = GetOuter();
Assert(pOuter != NULL);
hintCriteria.AddHintType( HINT_PLAYER_ALLY_FEAR_DEST );
hintCriteria.SetFlag( bits_HINT_NODE_VISIBLE_TO_PLAYER | bits_HINT_NOT_CLOSE_TO_ENEMY /*| bits_HINT_NODE_IN_VIEWCONE | bits_HINT_NPC_IN_NODE_FOV*/ );
hintCriteria.AddIncludePosition( AI_GetSinglePlayer()->GetAbsOrigin(), ( ai_fear_player_dist.GetFloat() ) );
pHint = CAI_HintManager::FindHint( pOuter, hintCriteria );
if( pHint )
{
// Reserve this node while I try to get to it. When I get there I will lock it.
// Otherwise, if I fail to get there, the node will come available again soon.
pHint->DisableForSeconds( 4.0f );
}
#if 0
else
{
Msg("DID NOT FIND HINT\n");
NDebugOverlay::Cross3D( GetOuter()->WorldSpaceCenter(), 32, 255, 255, 0, false, 10.0f );
}
#endif
return pHint;
}
//-----------------------------------------------------------------------------
// Purpose: Searches for a hint node that this NPC cares about. If one is
// claims that hint node for this NPC so that no other NPCs
// try to use it.
//
// Input : nFlags - Search criterea. Can currently be one or more of the following:
// bits_HINT_NODE_VISIBLE - searches for visible hint nodes.
// bits_HINT_NODE_RANDOM - calls through the FindHintRandom and builds list of all matching
// nodes and picks randomly from among them. Note: Depending on number of hint nodes, this
// could be slower, so use with care.
//
// Output : Returns pointer to hint node if available hint node was found that matches the
// given criterea that this NPC also cares about. Otherwise, returns NULL
//-----------------------------------------------------------------------------
CAI_Hint* CAI_HintManager::FindHint( CAI_BaseNPC *pNPC, Hint_e nHintType, int nFlags, float flMaxDist, const Vector *pMaxDistFrom )
{
assert( pNPC != NULL );
if ( pNPC == NULL )
return NULL;
CHintCriteria hintCriteria;
hintCriteria.SetHintType( nHintType );
hintCriteria.SetFlag( nFlags );
// Using the NPC's hint group?
if ( nFlags & bits_HINT_NODE_USE_GROUP )
{
hintCriteria.SetGroup( pNPC->GetHintGroup() );
}
// Add the search position
Vector vecPosition = ( pMaxDistFrom != NULL ) ? (*pMaxDistFrom) : pNPC->GetAbsOrigin();
hintCriteria.AddIncludePosition( vecPosition, flMaxDist );
// If asking for a random node, use random logic instead
if ( nFlags & bits_HINT_NODE_RANDOM )
return FindHintRandom( pNPC, vecPosition, hintCriteria );
return FindHint( pNPC, vecPosition, hintCriteria );
}
bool CBounceBomb::IsValidLocation()
{
CBaseEntity *pAvoidObject = NULL;
float flAvoidForce = 0.0f;
CAI_Hint *pHint;
CHintCriteria criteria;
criteria.SetHintType( HINT_WORLD_INHIBIT_COMBINE_MINES );
criteria.SetFlag( bits_HINT_NODE_NEAREST );
criteria.AddIncludePosition( GetAbsOrigin(), 12.0f * 15.0f );
pHint = CAI_HintManager::FindHint( GetAbsOrigin(), criteria );
if( pHint )
{
pAvoidObject = pHint;
flAvoidForce = 120.0f;
}
else
{
// Look for other mines that are too close to me.
CBaseEntity *pEntity = gEntList.FirstEnt();
Vector vecMyPosition = GetAbsOrigin();
while( pEntity )
{
if( pEntity->m_iClassname == m_iClassname && pEntity != this )
{
// Don't lock down if I'm near a mine that's already locked down.
if( vecMyPosition.DistToSqr(pEntity->GetAbsOrigin()) < MINE_MIN_PROXIMITY_SQR )
{
pAvoidObject = pEntity;
flAvoidForce = 60.0f;
break;
}
}
pEntity = gEntList.NextEnt( pEntity );
}
}
if( pAvoidObject )
{
// Build a force vector to push us away from the inhibitor.
// Start by pushing upwards.
Vector vecForce = Vector( 0, 0, VPhysicsGetObject()->GetMass() * 200.0f );
// Now add some force in the direction that takes us away from the inhibitor.
Vector vecDir = GetAbsOrigin() - pAvoidObject->GetAbsOrigin();
vecDir.z = 0.0f;
VectorNormalize( vecDir );
vecForce += vecDir * VPhysicsGetObject()->GetMass() * flAvoidForce;
Flip( vecForce, AngularImpulse( 100, 0, 0 ) );
// Tell the code that asked that this position isn't valid.
return false;
}
return true;
}
//-----------------------------------------------------------------------------
int CAI_HintManager::FindAllHints( CAI_BaseNPC *pNPC, const Vector &position, const CHintCriteria &hintCriteria, CUtlVector<CAI_Hint *> *pResult )
{
// If we have no hints, bail
int c = CAI_HintManager::gm_AllHints.Count();
if ( !c )
return NULL;
// Remove the nearest flag. It makes now sense with random.
bool hadNearest = hintCriteria.HasFlag( bits_HINT_NODE_NEAREST );
(const_cast<CHintCriteria &>(hintCriteria)).ClearFlag( bits_HINT_NODE_NEAREST );
// Now loop till we find a valid hint or return to the start
CAI_Hint *pTestHint;
for ( int i = 0; i < c; ++i )
{
pTestHint = CAI_HintManager::gm_AllHints[ i ];
Assert( pTestHint );
if ( pTestHint->HintMatchesCriteria( pNPC, hintCriteria, position, NULL ) )
pResult->AddToTail( pTestHint );
}
if ( hadNearest )
(const_cast<CHintCriteria &>(hintCriteria)).SetFlag( bits_HINT_NODE_NEAREST );
return pResult->Count();
}
//---------------------------------------------------------
// Purpose:
//---------------------------------------------------------
void CNPC_Assassin::StartTask( const Task_t *pTask )
{
switch( pTask->iTask )
{
case TASK_ASSASSIN_SET_EYE_STATE:
{
SetEyeState( (eyeState_t) ( (int) pTask->flTaskData ) );
TaskComplete();
}
break;
case TASK_ASSASSIN_EVADE:
{
Activity flipAct = ACT_INVALID;
const Vector *avoidPos = ( GetEnemy() != NULL ) ? &(GetEnemy()->GetAbsOrigin()) : NULL;
for ( int i = FLIP_LEFT; i < NUM_FLIP_TYPES; i++ )
{
if ( CanFlip( i, flipAct, avoidPos ) )
{
// Don't flip back to where we just were
if ( ( ( i == FLIP_LEFT ) && ( m_nLastFlipType == FLIP_RIGHT ) ) ||
( ( i == FLIP_RIGHT ) && ( m_nLastFlipType == FLIP_LEFT ) ) ||
( ( i == FLIP_FORWARD ) && ( m_nLastFlipType == FLIP_BACKWARD ) ) ||
( ( i == FLIP_BACKWARD ) && ( m_nLastFlipType == FLIP_FORWARD ) ) )
{
flipAct = ACT_INVALID;
continue;
}
m_nNumFlips--;
ResetIdealActivity( flipAct );
m_flNextFlipTime = gpGlobals->curtime + 2.0f;
m_nLastFlipType = i;
break;
}
}
if ( flipAct == ACT_INVALID )
{
m_nNumFlips = 0;
m_nLastFlipType = -1;
m_flNextFlipTime = gpGlobals->curtime + 2.0f;
TaskFail( "Unable to find flip evasion direction!\n" );
}
}
break;
case TASK_ASSASSIN_GET_PATH_TO_VANTAGE_POINT:
{
assert( GetEnemy() != NULL );
if ( GetEnemy() == NULL )
break;
Vector goalPos;
CHintCriteria hint;
// Find a disadvantage node near the player, but away from ourselves
hint.SetHintType( HINT_TACTICAL_ENEMY_DISADVANTAGED );
hint.AddExcludePosition( GetAbsOrigin(), 256 );
hint.AddExcludePosition( GetEnemy()->GetAbsOrigin(), 256 );
if ( ( m_pSquad != NULL ) && ( m_pSquad->NumMembers() > 1 ) )
{
AISquadIter_t iter;
for ( CAI_BaseNPC *pSquadMember = m_pSquad->GetFirstMember( &iter ); pSquadMember; pSquadMember = m_pSquad->GetNextMember( &iter ) )
{
if ( pSquadMember == NULL )
continue;
hint.AddExcludePosition( pSquadMember->GetAbsOrigin(), 128 );
}
}
hint.SetFlag( bits_HINT_NODE_NEAREST );
CAI_Hint *pHint = CAI_HintManager::FindHint( this, GetEnemy()->GetAbsOrigin(), &hint );
if ( pHint == NULL )
{
TaskFail( "Unable to find vantage point!\n" );
break;
}
pHint->GetPosition( this, &goalPos );
AI_NavGoal_t goal( goalPos );
//Try to run directly there
if ( GetNavigator()->SetGoal( goal ) == false )
{
TaskFail( "Unable to find path to vantage point!\n" );
break;
}
TaskComplete();
}
break;
default:
BaseClass::StartTask( pTask );
break;
}
}
//-----------------------------------------------------------------------------
// Purpose: Return true if pTestHint passes the criteria specified in hintCriteria
//-----------------------------------------------------------------------------
bool CAI_Hint::HintMatchesCriteria( CAI_BaseNPC *pNPC, const CHintCriteria &hintCriteria, const Vector &position, float *flNearestDistance, bool bIgnoreLock, bool bIgnoreHintType )
{
// Cannot be locked
if ( !bIgnoreLock && IsLocked() )
{
REPORTFAILURE( "Node is locked." );
return false;
}
if ( !bIgnoreHintType && !hintCriteria.MatchesHintType( HintType() ) )
{
return false;
}
if ( GetMinState() > NPC_STATE_IDLE || GetMaxState() < NPC_STATE_COMBAT )
{
if ( pNPC && ( pNPC->GetState() < GetMinState() || pNPC->GetState() > GetMaxState() ) )
{
REPORTFAILURE( "NPC not in correct state." );
return false;
}
}
// See if we're filtering by group name
if ( hintCriteria.GetGroup() != NULL_STRING )
{
AssertIsValidString( GetGroup() );
AssertIsValidString( hintCriteria.GetGroup() );
if ( GetGroup() == NULL_STRING || GetGroup() != hintCriteria.GetGroup() )
{
Assert(GetGroup() == NULL_STRING || strcmp( STRING(GetGroup()), STRING(hintCriteria.GetGroup())) != 0 );
REPORTFAILURE( "Doesn't match NPC hint group." );
return false;
}
}
// If we're watching for include zones, test it
if ( ( hintCriteria.HasIncludeZones() ) && ( hintCriteria.InIncludedZone( GetAbsOrigin() ) == false ) )
{
REPORTFAILURE( "Not inside include zones." );
return false;
}
// If we're watching for exclude zones, test it
if ( ( hintCriteria.HasExcludeZones() ) && ( hintCriteria.InExcludedZone( GetAbsOrigin() ) ) )
{
REPORTFAILURE( "Inside exclude zones." );
return false;
}
// See if the class handles this hint type
if ( ( pNPC != NULL ) && ( pNPC->FValidateHintType( this ) == false ) )
{
REPORTFAILURE( "NPC doesn't know how to handle that type." );
return false;
}
if ( hintCriteria.HasFlag(bits_HINT_NPC_IN_NODE_FOV) )
{
if ( pNPC == NULL )
{
AssertMsg(0,"Hint node attempted to verify NPC in node FOV without NPC!\n");
}
else
{
if( !IsInNodeFOV(pNPC) )
{
REPORTFAILURE( "NPC Not in hint's FOV" );
return false;
}
}
}
if ( hintCriteria.HasFlag( bits_HINT_NODE_IN_AIMCONE ) )
{
if ( pNPC == NULL )
{
AssertMsg( 0, "Hint node attempted to find node in aimcone without specifying NPC!\n" );
}
else
{
if( !pNPC->FInAimCone( GetAbsOrigin() ) )
{
REPORTFAILURE( "Hint isn't in NPC's aimcone" );
return false;
}
}
}
if ( hintCriteria.HasFlag( bits_HINT_NODE_IN_VIEWCONE ) )
{
if ( pNPC == NULL )
{
AssertMsg( 0, "Hint node attempted to find node in viewcone without specifying NPC!\n" );
}
else
{
if( !pNPC->FInViewCone( this ) )
{
REPORTFAILURE( "Hint isn't in NPC's viewcone" );
return false;
}
}
}
{
AI_PROFILE_SCOPE( HINT_FVisible );
// See if we're requesting a visible node
if ( hintCriteria.HasFlag( bits_HINT_NODE_VISIBLE ) )
{
if ( pNPC == NULL )
{
//NOTENOTE: If you're hitting this, you've asked for a visible node without specifing an NPC!
AssertMsg( 0, "Hint node attempted to find visible node without specifying NPC!\n" );
}
else
{
if( m_NodeData.nNodeID == NO_NODE )
{
// This is just an info_hint, not a node.
if( !pNPC->FVisible( this ) )
{
REPORTFAILURE( "Hint isn't visible to NPC." );
return false;
}
}
else
{
// This hint associated with a node.
trace_t tr;
Vector vHintPos;
GetPosition(pNPC,&vHintPos);
AI_TraceLine ( pNPC->EyePosition(), vHintPos + pNPC->GetViewOffset(), MASK_NPCSOLID_BRUSHONLY, pNPC, COLLISION_GROUP_NONE, &tr );
if ( tr.fraction != 1.0f )
{
REPORTFAILURE( "Node isn't visible to NPC." );
return false;
}
}
}
}
}
// Check for clear if requested
if ( hintCriteria.HasFlag( bits_HINT_NODE_CLEAR ) )
{
if ( pNPC == NULL )
{
//NOTENOTE: If you're hitting this, you've asked for a clear node without specifing an NPC!
AssertMsg( 0, "Hint node attempted to find clear node without specifying NPC!\n" );
}
else
{
trace_t tr;
// Can my bounding box fit there?
AI_TraceHull ( GetAbsOrigin(), GetAbsOrigin(), pNPC->WorldAlignMins(), pNPC->WorldAlignMaxs(),
MASK_SOLID, pNPC, COLLISION_GROUP_NONE, &tr );
if ( tr.fraction != 1.0 )
{
REPORTFAILURE( "Node isn't clear." );
return false;
}
}
}
// See if this is our next, closest node
if ( hintCriteria.HasFlag( bits_HINT_NODE_NEAREST ) )
{
Assert( flNearestDistance );
// Calculate our distance
float distance = (GetAbsOrigin() - position).Length();
// Must be closer than the current best
if ( distance > *flNearestDistance )
{
REPORTFAILURE( "Not the nearest node." );
return false;
}
// Remember the distance
*flNearestDistance = distance;
}
// Must either be visible or not if requested
if ( hintCriteria.HasFlag( bits_HINT_NODE_NOT_VISIBLE_TO_PLAYER|bits_HINT_NODE_VISIBLE_TO_PLAYER ) )
{
bool bWasSeen = false;
// Test all potential seers
for ( int i = 1; i <= gpGlobals->maxClients; i++ )
{
CBasePlayer *pPlayer = UTIL_PlayerByIndex(i);
if ( pPlayer )
{
// Only spawn if the player's looking away from me
Vector vLookDir = pPlayer->EyeDirection3D();
Vector vTargetDir = GetAbsOrigin() - pPlayer->EyePosition();
VectorNormalize(vTargetDir);
float fDotPr = DotProduct(vLookDir,vTargetDir);
if ( fDotPr > 0 )
{
trace_t tr;
UTIL_TraceLine( pPlayer->EyePosition(), GetAbsOrigin(), MASK_SOLID_BRUSHONLY, pPlayer, COLLISION_GROUP_NONE, &tr);
if ( tr.fraction == 1.0 )
{
if ( hintCriteria.HasFlag( bits_HINT_NODE_NOT_VISIBLE_TO_PLAYER ) )
{
REPORTFAILURE( "Node is visible to player." );
return false;
}
bWasSeen = true;
}
}
}
}
if ( !bWasSeen && hintCriteria.HasFlag( bits_HINT_NODE_VISIBLE_TO_PLAYER ) )
{
REPORTFAILURE( "Node isn't visible to player." );
return false;
}
}
return true;
}
