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299 lines
8.1 KiB
299 lines
8.1 KiB
![]()
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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#include "npc_vehicledriver.h"
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#include "vehicle_apc.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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#define SF_APCDRIVER_NO_ROCKET_ATTACK 0x10000
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#define SF_APCDRIVER_NO_GUN_ATTACK 0x20000
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#define NPC_APCDRIVER_REMEMBER_TIME 4
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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class CNPC_APCDriver : public CNPC_VehicleDriver
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{
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DECLARE_CLASS( CNPC_APCDriver, CNPC_VehicleDriver );
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public:
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DECLARE_DATADESC();
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DEFINE_CUSTOM_AI;
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virtual void Spawn( void );
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virtual void Activate( void );
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virtual bool FVisible( CBaseEntity *pTarget, int traceMask, CBaseEntity **ppBlocker );
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virtual bool WeaponLOSCondition( const Vector &ownerPos, const Vector &targetPos, bool bSetConditions );
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virtual Class_T Classify ( void ) { return CLASS_COMBINE; }
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virtual void PrescheduleThink( );
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virtual Disposition_t IRelationType(CBaseEntity *pTarget);
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// AI
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virtual int RangeAttack1Conditions( float flDot, float flDist );
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virtual int RangeAttack2Conditions( float flDot, float flDist );
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private:
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// Are we being carried by a dropship?
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bool IsBeingCarried();
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// Enable, disable firing
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void InputEnableFiring( inputdata_t &inputdata );
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void InputDisableFiring( inputdata_t &inputdata );
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CHandle<CPropAPC> m_hAPC;
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float m_flTimeLastSeenEnemy;
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bool m_bFiringDisabled;
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};
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BEGIN_DATADESC( CNPC_APCDriver )
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//DEFINE_FIELD( m_hAPC, FIELD_EHANDLE ),
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DEFINE_FIELD( m_bFiringDisabled, FIELD_BOOLEAN ),
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DEFINE_FIELD( m_flTimeLastSeenEnemy, FIELD_TIME ),
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DEFINE_INPUTFUNC( FIELD_VOID, "EnableFiring", InputEnableFiring ),
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DEFINE_INPUTFUNC( FIELD_VOID, "DisableFiring", InputDisableFiring ),
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END_DATADESC()
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LINK_ENTITY_TO_CLASS( npc_apcdriver, CNPC_APCDriver );
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//------------------------------------------------------------------------------
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// Purpose :
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//------------------------------------------------------------------------------
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void CNPC_APCDriver::Spawn( void )
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{
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BaseClass::Spawn();
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m_flTimeLastSeenEnemy = -NPC_APCDRIVER_REMEMBER_TIME;
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CapabilitiesClear();
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CapabilitiesAdd( bits_CAP_INNATE_RANGE_ATTACK1 | bits_CAP_INNATE_RANGE_ATTACK2 );
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m_bFiringDisabled = false;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CNPC_APCDriver::Activate( void )
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{
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BaseClass::Activate();
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m_hAPC = dynamic_cast<CPropAPC*>((CBaseEntity*)m_hVehicleEntity);
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if ( !m_hAPC )
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{
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Warning( "npc_apcdriver %s couldn't find his apc named %s.\n", STRING(GetEntityName()), STRING(m_iszVehicleName) );
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UTIL_Remove( this );
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return;
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}
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SetParent( m_hAPC );
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SetAbsOrigin( m_hAPC->WorldSpaceCenter() );
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SetLocalAngles( vec3_angle );
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m_flDistTooFar = m_hAPC->MaxAttackRange();
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SetDistLook( m_hAPC->MaxAttackRange() );
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}
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//-----------------------------------------------------------------------------
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// Enable, disable firing
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//-----------------------------------------------------------------------------
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void CNPC_APCDriver::InputEnableFiring( inputdata_t &inputdata )
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{
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m_bFiringDisabled = false;
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}
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void CNPC_APCDriver::InputDisableFiring( inputdata_t &inputdata )
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{
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m_bFiringDisabled = true;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Let's not hate things the APC makes
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//-----------------------------------------------------------------------------
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Disposition_t CNPC_APCDriver::IRelationType(CBaseEntity *pTarget)
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{
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if ( pTarget == m_hAPC || (pTarget->GetOwnerEntity() == m_hAPC) )
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return D_LI;
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return BaseClass::IRelationType(pTarget);
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}
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//------------------------------------------------------------------------------
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// Are we being carried by a dropship?
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//------------------------------------------------------------------------------
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bool CNPC_APCDriver::IsBeingCarried()
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{
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// Inert if we're carried...
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Vector vecVelocity;
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m_hAPC->GetVelocity( &vecVelocity, NULL );
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return ( m_hAPC->GetMoveParent() != NULL ) || (fabs(vecVelocity.z) >= 15);
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}
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//------------------------------------------------------------------------------
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// Is the enemy visible?
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//------------------------------------------------------------------------------
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bool CNPC_APCDriver::WeaponLOSCondition(const Vector &ownerPos, const Vector &targetPos, bool bSetConditions)
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{
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if ( m_hAPC->m_lifeState != LIFE_ALIVE )
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return false;
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if ( IsBeingCarried() || m_bFiringDisabled )
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return false;
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float flTargetDist = ownerPos.DistTo( targetPos );
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if (flTargetDist > m_hAPC->MaxAttackRange())
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return false;
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return true;
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}
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//-----------------------------------------------------------------------------
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// Is the enemy visible?
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//-----------------------------------------------------------------------------
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bool CNPC_APCDriver::FVisible( CBaseEntity *pTarget, int traceMask, CBaseEntity **ppBlocker )
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{
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if ( m_hAPC->m_lifeState != LIFE_ALIVE )
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return false;
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if ( IsBeingCarried() || m_bFiringDisabled )
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return false;
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float flTargetDist = GetAbsOrigin().DistTo( pTarget->GetAbsOrigin() );
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if (flTargetDist > m_hAPC->MaxAttackRange())
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return false;
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bool bVisible = m_hAPC->FVisible( pTarget, traceMask, ppBlocker );
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if ( bVisible && (pTarget == GetEnemy()) )
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{
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m_flTimeLastSeenEnemy = gpGlobals->curtime;
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}
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if ( pTarget->IsPlayer() || pTarget->Classify() == CLASS_BULLSEYE )
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{
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if (!bVisible)
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{
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if ( ( gpGlobals->curtime - m_flTimeLastSeenEnemy ) <= NPC_APCDRIVER_REMEMBER_TIME )
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return true;
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}
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}
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return bVisible;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input :
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// Output :
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//-----------------------------------------------------------------------------
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int CNPC_APCDriver::RangeAttack1Conditions( float flDot, float flDist )
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{
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if ( HasSpawnFlags(SF_APCDRIVER_NO_GUN_ATTACK) )
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return COND_NONE;
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if ( m_hAPC->m_lifeState != LIFE_ALIVE )
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return COND_NONE;
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if ( IsBeingCarried() || m_bFiringDisabled )
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return COND_NONE;
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if ( !HasCondition( COND_SEE_ENEMY ) )
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return COND_NONE;
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if ( !m_hAPC->IsInPrimaryFiringCone() )
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return COND_NONE;
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// Vehicle not ready to fire again yet?
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if ( m_pVehicleInterface->Weapon_PrimaryCanFireAt() > gpGlobals->curtime + 0.1f )
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return COND_NONE;
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float flMinDist, flMaxDist;
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m_pVehicleInterface->Weapon_PrimaryRanges( &flMinDist, &flMaxDist );
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if (flDist < flMinDist)
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return COND_NONE;
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if (flDist > flMaxDist)
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return COND_NONE;
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return COND_CAN_RANGE_ATTACK1;
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}
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int CNPC_APCDriver::RangeAttack2Conditions( float flDot, float flDist )
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{
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if ( HasSpawnFlags(SF_APCDRIVER_NO_ROCKET_ATTACK) )
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return COND_NONE;
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if ( m_hAPC->m_lifeState != LIFE_ALIVE )
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return COND_NONE;
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if ( IsBeingCarried() || m_bFiringDisabled )
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return COND_NONE;
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if ( !HasCondition( COND_SEE_ENEMY ) )
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return COND_NONE;
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// Vehicle not ready to fire again yet?
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if ( m_pVehicleInterface->Weapon_SecondaryCanFireAt() > gpGlobals->curtime + 0.1f )
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return COND_NONE;
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float flMinDist, flMaxDist;
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m_pVehicleInterface->Weapon_SecondaryRanges( &flMinDist, &flMaxDist );
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if (flDist < flMinDist)
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return COND_NONE;
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if (flDist > flMaxDist)
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return COND_NONE;
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return COND_CAN_RANGE_ATTACK2;
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}
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//-----------------------------------------------------------------------------
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// Aim the laser dot!
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//-----------------------------------------------------------------------------
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void CNPC_APCDriver::PrescheduleThink( )
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{
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BaseClass::PrescheduleThink();
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if ( m_hAPC->m_lifeState == LIFE_ALIVE )
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{
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if ( GetEnemy() )
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{
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m_hAPC->AimPrimaryWeapon( GetEnemy()->BodyTarget( GetAbsOrigin(), false ) );
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}
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m_hAPC->AimSecondaryWeaponAt( GetEnemy() );
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}
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else if ( m_hAPC->m_lifeState == LIFE_DEAD )
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{
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UTIL_Remove( this );
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Schedules
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//
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//-----------------------------------------------------------------------------
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AI_BEGIN_CUSTOM_NPC( npc_apcdriver, CNPC_APCDriver )
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AI_END_CUSTOM_NPC()
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