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552 lines
15 KiB
552 lines
15 KiB
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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// |
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//=============================================================================// |
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#include "cbase.h" |
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#include "ai_motor.h" |
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#include "ai_behavior_fear.h" |
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#include "ai_hint.h" |
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#include "ai_navigator.h" |
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// memdbgon must be the last include file in a .cpp file!!! |
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#include "tier0/memdbgon.h" |
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BEGIN_DATADESC( CAI_FearBehavior ) |
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DEFINE_FIELD( m_flTimeToSafety, FIELD_TIME ), |
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DEFINE_FIELD( m_flTimePlayerLastVisible, FIELD_TIME ), |
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DEFINE_FIELD( m_hSafePlaceHint, FIELD_EHANDLE ), |
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DEFINE_FIELD( m_hMovingToHint, FIELD_EHANDLE ), |
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DEFINE_EMBEDDED( m_SafePlaceMoveMonitor ), |
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DEFINE_FIELD( m_flDeferUntil, FIELD_TIME ), |
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END_DATADESC(); |
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#define BEHAVIOR_FEAR_SAFETY_TIME 5 |
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#define FEAR_SAFE_PLACE_TOLERANCE 36.0f |
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#define FEAR_ENEMY_TOLERANCE_CLOSE_DIST_SQR Square(300.0f) // (25 feet) |
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#define FEAR_ENEMY_TOLERANCE_TOO_CLOSE_DIST_SQR Square( 60.0f ) // (5 Feet) |
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ConVar ai_enable_fear_behavior( "ai_enable_fear_behavior", "1" ); |
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ConVar ai_fear_player_dist("ai_fear_player_dist", "720" ); |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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//----------------------------------------------------------------------------- |
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CAI_FearBehavior::CAI_FearBehavior() |
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{ |
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ReleaseAllHints(); |
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m_SafePlaceMoveMonitor.ClearMark(); |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::Precache( void ) |
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{ |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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// Input : *pTask - |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::StartTask( const Task_t *pTask ) |
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{ |
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switch( pTask->iTask ) |
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{ |
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case TASK_FEAR_IN_SAFE_PLACE: |
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// We've arrived! Lock the hint and set the marker. we're safe for now. |
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m_hSafePlaceHint = m_hMovingToHint; |
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m_hSafePlaceHint->Lock( GetOuter() ); |
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m_SafePlaceMoveMonitor.SetMark( GetOuter(), FEAR_SAFE_PLACE_TOLERANCE ); |
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TaskComplete(); |
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break; |
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case TASK_FEAR_GET_PATH_TO_SAFETY_HINT: |
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// Using TaskInterrupt() optimizations. See RunTask(). |
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break; |
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case TASK_FEAR_WAIT_FOR_SAFETY: |
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m_flTimeToSafety = gpGlobals->curtime + BEHAVIOR_FEAR_SAFETY_TIME; |
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break; |
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default: |
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BaseClass::StartTask( pTask ); |
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break; |
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} |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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// Input : *pTask - |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::RunTask( const Task_t *pTask ) |
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{ |
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switch( pTask->iTask ) |
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{ |
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case TASK_FEAR_WAIT_FOR_SAFETY: |
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if( HasCondition(COND_SEE_ENEMY) ) |
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{ |
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m_flTimeToSafety = gpGlobals->curtime + BEHAVIOR_FEAR_SAFETY_TIME; |
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} |
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else |
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{ |
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if( gpGlobals->curtime > m_flTimeToSafety ) |
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{ |
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TaskComplete(); |
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} |
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} |
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break; |
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case TASK_FEAR_GET_PATH_TO_SAFETY_HINT: |
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{ |
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switch( GetOuter()->GetTaskInterrupt() ) |
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{ |
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case 0:// Find the hint node |
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{ |
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ReleaseAllHints(); |
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CAI_Hint *pHint = FindFearWithdrawalDest(); |
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if( pHint == NULL ) |
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{ |
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TaskFail("Fear: Couldn't find hint node\n"); |
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m_flDeferUntil = gpGlobals->curtime + 3.0f;// Don't bang the hell out of this behavior. If we don't find a node, take a short break and run regular AI. |
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} |
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else |
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{ |
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m_hMovingToHint.Set( pHint ); |
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GetOuter()->TaskInterrupt(); |
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} |
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} |
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break; |
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case 1:// Do the pathfinding. |
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{ |
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Assert( m_hMovingToHint != NULL ); |
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AI_NavGoal_t goal(m_hMovingToHint->GetAbsOrigin()); |
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goal.pTarget = NULL; |
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if( GetNavigator()->SetGoal( goal ) == false ) |
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{ |
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m_hMovingToHint.Set( NULL ); |
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// Do whatever we'd want to do if we can't find a path |
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/* |
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Msg("Can't path to the Fear Hint!\n"); |
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AI_NavGoal_t nearGoal( GOALTYPE_LOCATION_NEAREST_NODE, m_hRallyPoint->GetAbsOrigin(), AIN_DEF_ACTIVITY, 256 ); |
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if ( GetNavigator()->SetGoal( nearGoal, AIN_CLEAR_PREVIOUS_STATE ) ) |
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{ |
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//FIXME: HACK! The internal pathfinding is setting this without our consent, so override it! |
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ClearCondition( COND_TASK_FAILED ); |
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GetNavigator()->SetArrivalDirection( m_hRallyPoint->GetAbsAngles() ); |
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TaskComplete(); |
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return; |
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} |
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*/ |
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} |
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else |
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{ |
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GetNavigator()->SetArrivalDirection( m_hMovingToHint->GetAbsAngles() ); |
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} |
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} |
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break; |
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} |
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} |
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break; |
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default: |
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BaseClass::RunTask( pTask ); |
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break; |
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} |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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// Output : TRUE if I have an enemy and that enemy would attack me if it could |
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// Notes : Returns FALSE if the enemy is neutral or likes me. |
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//----------------------------------------------------------------------------- |
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bool CAI_FearBehavior::EnemyDislikesMe() |
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{ |
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CBaseEntity *pEnemy = GetEnemy(); |
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if( pEnemy == NULL ) |
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return false; |
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if( pEnemy->MyNPCPointer() == NULL ) |
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return false; |
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Disposition_t disposition = pEnemy->MyNPCPointer()->IRelationType(GetOuter()); |
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Assert(disposition != D_ER); |
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if( disposition >= D_LI ) |
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return false; |
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return true; |
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} |
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//----------------------------------------------------------------------------- |
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// This place is definitely no longer safe. Stop picking it for a while. |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::MarkAsUnsafe() |
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{ |
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Assert( m_hSafePlaceHint ); |
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// Disable the node to stop anyone from picking it for a while. |
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m_hSafePlaceHint->DisableForSeconds( 5.0f ); |
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} |
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//----------------------------------------------------------------------------- |
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// Am I in safe place from my enemy? |
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//----------------------------------------------------------------------------- |
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bool CAI_FearBehavior::IsInASafePlace() |
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{ |
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// No safe place in mind. |
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if( !m_SafePlaceMoveMonitor.IsMarkSet() ) |
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return false; |
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// I have a safe place, but I'm not there. |
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if( m_SafePlaceMoveMonitor.TargetMoved(GetOuter()) ) |
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return false; |
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return true; |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::SpoilSafePlace() |
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{ |
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m_SafePlaceMoveMonitor.ClearMark(); |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::ReleaseAllHints() |
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{ |
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if( m_hSafePlaceHint ) |
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{ |
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// If I have a safe place, unlock it for others. |
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m_hSafePlaceHint->Unlock(); |
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// Don't make it available right away. I probably left for a good reason. |
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// We also don't want to oscillate |
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m_hSafePlaceHint->DisableForSeconds( 4.0f ); |
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m_hSafePlaceHint = NULL; |
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} |
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if( m_hMovingToHint ) |
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{ |
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m_hMovingToHint->Unlock(); |
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m_hMovingToHint = NULL; |
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} |
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m_SafePlaceMoveMonitor.ClearMark(); |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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// Output : Returns true on success, false on failure. |
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// Notes : This behavior runs when I have an enemy that I fear, but who |
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// does NOT hate or fear me (meaning they aren't going to fight me) |
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//----------------------------------------------------------------------------- |
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bool CAI_FearBehavior::CanSelectSchedule() |
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{ |
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if( !GetOuter()->IsInterruptable() ) |
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return false; |
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if( m_flDeferUntil > gpGlobals->curtime ) |
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return false; |
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CBaseEntity *pEnemy = GetEnemy(); |
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if( pEnemy == NULL ) |
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return false; |
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//if( !HasCondition(COND_SEE_PLAYER) ) |
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// return false; |
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if( !ai_enable_fear_behavior.GetBool() ) |
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return false; |
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if( GetOuter()->IRelationType(pEnemy) != D_FR ) |
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return false; |
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if( !pEnemy->ClassMatches("npc_hunter") ) |
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return false; |
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return true; |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::GatherConditions() |
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{ |
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BaseClass::GatherConditions(); |
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ClearCondition( COND_FEAR_ENEMY_CLOSE ); |
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ClearCondition( COND_FEAR_ENEMY_TOO_CLOSE ); |
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if( GetEnemy() ) |
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{ |
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float flEnemyDistSqr = GetAbsOrigin().DistToSqr(GetEnemy()->GetAbsOrigin()); |
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if( flEnemyDistSqr < FEAR_ENEMY_TOLERANCE_TOO_CLOSE_DIST_SQR ) |
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{ |
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SetCondition( COND_FEAR_ENEMY_TOO_CLOSE ); |
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if( IsInASafePlace() ) |
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{ |
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SpoilSafePlace(); |
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} |
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} |
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else if( flEnemyDistSqr < FEAR_ENEMY_TOLERANCE_CLOSE_DIST_SQR && GetEnemy()->GetEnemy() == GetOuter() ) |
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{ |
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// Only become scared of an enemy at this range if they're my enemy, too |
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SetCondition( COND_FEAR_ENEMY_CLOSE ); |
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if( IsInASafePlace() ) |
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{ |
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SpoilSafePlace(); |
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} |
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} |
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} |
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ClearCondition(COND_FEAR_SEPARATED_FROM_PLAYER); |
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// Check for separation from the player |
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// -The player is farther away than 60 feet |
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// -I haven't seen the player in 2 seconds |
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// |
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// Here's the distance check: |
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CBasePlayer *pPlayer = AI_GetSinglePlayer(); |
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if( pPlayer != NULL && GetAbsOrigin().DistToSqr(pPlayer->GetAbsOrigin()) >= Square( ai_fear_player_dist.GetFloat() * 1.5f ) ) |
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{ |
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SetCondition(COND_FEAR_SEPARATED_FROM_PLAYER); |
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} |
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// Here's the visibility check. We can't skip this because it's time-sensitive |
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if( GetOuter()->FVisible(pPlayer) ) |
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{ |
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m_flTimePlayerLastVisible = gpGlobals->curtime; |
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} |
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else |
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{ |
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if( gpGlobals->curtime - m_flTimePlayerLastVisible >= 2.0f ) |
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{ |
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SetCondition(COND_FEAR_SEPARATED_FROM_PLAYER); |
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} |
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} |
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if( HasCondition(COND_FEAR_SEPARATED_FROM_PLAYER) ) |
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{ |
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//Msg("I am separated from player\n"); |
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if( IsInASafePlace() ) |
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{ |
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SpoilSafePlace(); |
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} |
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} |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::BeginScheduleSelection() |
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{ |
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if( m_hSafePlaceHint ) |
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{ |
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// We think we're safe. Is it true? |
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if( !IsInASafePlace() ) |
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{ |
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// no! So mark it so. |
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ReleaseAllHints(); |
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} |
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} |
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m_flTimePlayerLastVisible = gpGlobals->curtime; |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::EndScheduleSelection() |
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{ |
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// We don't have to release our hints or markers or anything here. |
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// Just because we ran other AI for a while doesn't mean we aren't still in a safe place. |
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//ReleaseAllHints(); |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: |
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// Output : int |
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// Notes : If fear behavior is running at all, we know we're afraid of our enemy |
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//----------------------------------------------------------------------------- |
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int CAI_FearBehavior::SelectSchedule() |
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{ |
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bool bInSafePlace = IsInASafePlace(); |
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if( !HasCondition(COND_HEAR_DANGER) ) |
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{ |
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if( !bInSafePlace ) |
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{ |
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// Always move to a safe place if we're not running from a danger sound |
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return SCHED_FEAR_MOVE_TO_SAFE_PLACE; |
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} |
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else |
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{ |
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// We ARE in a safe place |
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if( HasCondition(COND_CAN_RANGE_ATTACK1) ) |
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return SCHED_RANGE_ATTACK1; |
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return SCHED_FEAR_STAY_IN_SAFE_PLACE; |
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} |
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} |
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return BaseClass::SelectSchedule(); |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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void CAI_FearBehavior::BuildScheduleTestBits() |
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{ |
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BaseClass::BuildScheduleTestBits(); |
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if( GetOuter()->GetState() != NPC_STATE_SCRIPT ) |
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{ |
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// Stop doing ANYTHING if we get scared. |
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//GetOuter()->SetCustomInterruptCondition( COND_HEAR_DANGER ); |
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if( !IsCurSchedule(SCHED_FEAR_MOVE_TO_SAFE_PLACE_RETRY, false) && !IsCurSchedule(SCHED_FEAR_MOVE_TO_SAFE_PLACE, false) ) |
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{ |
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GetOuter()->SetCustomInterruptCondition( GetClassScheduleIdSpace()->ConditionLocalToGlobal(COND_FEAR_SEPARATED_FROM_PLAYER) ); |
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} |
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} |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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int CAI_FearBehavior::TranslateSchedule( int scheduleType ) |
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{ |
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switch( scheduleType ) |
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{ |
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case SCHED_FEAR_MOVE_TO_SAFE_PLACE: |
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if( HasCondition(COND_FEAR_ENEMY_TOO_CLOSE) ) |
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{ |
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// If I'm moving to a safe place AND have an enemy too close to me, |
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// make the move to safety while ignoring the condition. |
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// this stops an oscillation |
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// IS THIS CODE EVER EVEN BEING CALLED? (sjb) |
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return SCHED_FEAR_MOVE_TO_SAFE_PLACE_RETRY; |
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} |
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break; |
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} |
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return BaseClass::TranslateSchedule( scheduleType ); |
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} |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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CAI_Hint *CAI_FearBehavior::FindFearWithdrawalDest() |
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{ |
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CAI_Hint *pHint; |
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CHintCriteria hintCriteria; |
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CAI_BaseNPC *pOuter = GetOuter(); |
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Assert(pOuter != NULL); |
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hintCriteria.AddHintType( HINT_PLAYER_ALLY_FEAR_DEST ); |
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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*/ ); |
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hintCriteria.AddIncludePosition( AI_GetSinglePlayer()->GetAbsOrigin(), ( ai_fear_player_dist.GetFloat() ) ); |
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pHint = CAI_HintManager::FindHint( pOuter, hintCriteria ); |
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if( pHint ) |
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{ |
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// Reserve this node while I try to get to it. When I get there I will lock it. |
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// Otherwise, if I fail to get there, the node will come available again soon. |
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pHint->DisableForSeconds( 4.0f ); |
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} |
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#if 0 |
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else |
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{ |
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Msg("DID NOT FIND HINT\n"); |
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NDebugOverlay::Cross3D( GetOuter()->WorldSpaceCenter(), 32, 255, 255, 0, false, 10.0f ); |
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} |
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#endif |
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return pHint; |
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} |
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AI_BEGIN_CUSTOM_SCHEDULE_PROVIDER( CAI_FearBehavior ) |
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DECLARE_TASK( TASK_FEAR_GET_PATH_TO_SAFETY_HINT ) |
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DECLARE_TASK( TASK_FEAR_WAIT_FOR_SAFETY ) |
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DECLARE_TASK( TASK_FEAR_IN_SAFE_PLACE ) |
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DECLARE_CONDITION( COND_FEAR_ENEMY_CLOSE ) |
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DECLARE_CONDITION( COND_FEAR_ENEMY_TOO_CLOSE ) |
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DECLARE_CONDITION( COND_FEAR_SEPARATED_FROM_PLAYER ) |
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//=============================================== |
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//=============================================== |
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DEFINE_SCHEDULE |
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( |
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SCHED_FEAR_MOVE_TO_SAFE_PLACE, |
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" Tasks" |
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" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_RUN_FROM_ENEMY" |
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" TASK_FEAR_GET_PATH_TO_SAFETY_HINT 0" |
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" TASK_RUN_PATH 0" |
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" TASK_WAIT_FOR_MOVEMENT 0" |
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" TASK_SET_ACTIVITY ACTIVITY:ACT_IDLE" |
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" TASK_FEAR_IN_SAFE_PLACE 0" |
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" TASK_SET_SCHEDULE SCHEDULE:SCHED_FEAR_STAY_IN_SAFE_PLACE" |
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"" |
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" Interrupts" |
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"" |
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" COND_HEAR_DANGER" |
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" COND_NEW_ENEMY" |
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" COND_FEAR_ENEMY_TOO_CLOSE" |
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); |
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DEFINE_SCHEDULE |
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( |
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SCHED_FEAR_MOVE_TO_SAFE_PLACE_RETRY, |
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" Tasks" |
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" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_RUN_FROM_ENEMY" |
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" TASK_FEAR_GET_PATH_TO_SAFETY_HINT 0" |
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" TASK_RUN_PATH 0" |
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" TASK_WAIT_FOR_MOVEMENT 0" |
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" TASK_SET_ACTIVITY ACTIVITY:ACT_IDLE" |
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" TASK_FEAR_IN_SAFE_PLACE 0" |
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" TASK_SET_SCHEDULE SCHEDULE:SCHED_FEAR_STAY_IN_SAFE_PLACE" |
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"" |
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" Interrupts" |
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"" |
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" COND_HEAR_DANGER" |
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" COND_NEW_ENEMY" |
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); |
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//=============================================== |
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//=============================================== |
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DEFINE_SCHEDULE |
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( |
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SCHED_FEAR_STAY_IN_SAFE_PLACE, |
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" Tasks" |
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" TASK_FEAR_WAIT_FOR_SAFETY 0" |
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"" |
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" Interrupts" |
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"" |
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" COND_NEW_ENEMY" |
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" COND_HEAR_DANGER" |
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" COND_FEAR_ENEMY_CLOSE" |
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" COND_FEAR_ENEMY_TOO_CLOSE" |
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" COND_CAN_RANGE_ATTACK1" |
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" COND_FEAR_SEPARATED_FROM_PLAYER" |
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); |
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AI_END_CUSTOM_SCHEDULE_PROVIDER()
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