577 lines
15 KiB
C++
577 lines
15 KiB
C++
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: Handling for the base world item. Most of this was moved from items.cpp.
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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 "player.h"
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#include "items.h"
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#include "gamerules.h"
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#include "engine/IEngineSound.h"
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#include "iservervehicle.h"
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#include "physics_saverestore.h"
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#include "world.h"
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#ifdef HL2MP
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#include "hl2mp_gamerules.h"
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#endif
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#ifdef TF_DLL
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#include "tf_player.h"
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#include "entity_healthkit.h"
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#include "particle_parse.h"
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#endif
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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 ITEM_PICKUP_BOX_BLOAT 24
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class CWorldItem : public CBaseAnimating
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{
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DECLARE_DATADESC();
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public:
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DECLARE_CLASS( CWorldItem, CBaseAnimating );
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bool KeyValue( const char *szKeyName, const char *szValue );
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void Spawn( void );
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int m_iType;
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};
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LINK_ENTITY_TO_CLASS(world_items, CWorldItem);
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BEGIN_DATADESC( CWorldItem )
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DEFINE_FIELD( m_iType, FIELD_INTEGER ),
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END_DATADESC()
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bool CWorldItem::KeyValue( const char *szKeyName, const char *szValue )
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{
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if (FStrEq(szKeyName, "type"))
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{
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m_iType = atoi(szValue);
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}
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else
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return BaseClass::KeyValue( szKeyName, szValue );
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return true;
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}
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void CWorldItem::Spawn( void )
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{
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CBaseEntity *pEntity = NULL;
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switch (m_iType)
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{
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case 44: // ITEM_BATTERY:
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pEntity = CBaseEntity::Create( "item_battery", GetLocalOrigin(), GetLocalAngles() );
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break;
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case 45: // ITEM_SUIT:
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pEntity = CBaseEntity::Create( "item_suit", GetLocalOrigin(), GetLocalAngles() );
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break;
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}
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if (!pEntity)
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{
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Warning("unable to create world_item %d\n", m_iType );
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}
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else
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{
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pEntity->m_target = m_target;
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pEntity->SetName( GetEntityName() );
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pEntity->ClearSpawnFlags();
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pEntity->AddSpawnFlags( m_spawnflags );
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}
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UTIL_RemoveImmediate( this );
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}
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BEGIN_DATADESC( CItem )
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DEFINE_FIELD( m_bActivateWhenAtRest, FIELD_BOOLEAN ),
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DEFINE_FIELD( m_vOriginalSpawnOrigin, FIELD_POSITION_VECTOR ),
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DEFINE_FIELD( m_vOriginalSpawnAngles, FIELD_VECTOR ),
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DEFINE_PHYSPTR( m_pConstraint ),
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// Function Pointers
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DEFINE_ENTITYFUNC( ItemTouch ),
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DEFINE_THINKFUNC( Materialize ),
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DEFINE_THINKFUNC( ComeToRest ),
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#if defined( HL2MP ) || defined( TF_DLL )
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DEFINE_FIELD( m_flNextResetCheckTime, FIELD_TIME ),
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DEFINE_THINKFUNC( FallThink ),
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#endif
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// Outputs
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DEFINE_OUTPUT( m_OnPlayerTouch, "OnPlayerTouch" ),
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DEFINE_OUTPUT( m_OnCacheInteraction, "OnCacheInteraction" ),
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END_DATADESC()
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//-----------------------------------------------------------------------------
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// Constructor
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//-----------------------------------------------------------------------------
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CItem::CItem()
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{
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m_bActivateWhenAtRest = false;
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}
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bool CItem::CreateItemVPhysicsObject( void )
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{
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// Create the object in the physics system
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int nSolidFlags = GetSolidFlags() | FSOLID_NOT_STANDABLE;
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if ( !m_bActivateWhenAtRest )
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{
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nSolidFlags |= FSOLID_TRIGGER;
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}
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if ( VPhysicsInitNormal( SOLID_VPHYSICS, nSolidFlags, false ) == NULL )
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{
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SetSolid( SOLID_BBOX );
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AddSolidFlags( nSolidFlags );
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// If it's not physical, drop it to the floor
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if (UTIL_DropToFloor(this, MASK_SOLID) == 0)
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{
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Warning( "Item %s fell out of level at %f,%f,%f\n", GetClassname(), GetAbsOrigin().x, GetAbsOrigin().y, GetAbsOrigin().z);
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UTIL_Remove( this );
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return false;
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}
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CItem::Spawn( void )
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{
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if ( g_pGameRules->IsAllowedToSpawn( this ) == false )
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{
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UTIL_Remove( this );
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return;
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}
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SetMoveType( MOVETYPE_FLYGRAVITY );
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SetSolid( SOLID_BBOX );
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SetBlocksLOS( false );
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AddEFlags( EFL_NO_ROTORWASH_PUSH );
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if( IsX360() )
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{
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AddEffects( EF_ITEM_BLINK );
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}
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// This will make them not collide with the player, but will collide
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// against other items + weapons
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SetCollisionGroup( COLLISION_GROUP_WEAPON );
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CollisionProp()->UseTriggerBounds( true, ITEM_PICKUP_BOX_BLOAT );
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SetTouch(&CItem::ItemTouch);
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if ( CreateItemVPhysicsObject() == false )
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return;
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m_takedamage = DAMAGE_EVENTS_ONLY;
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#if !defined( CLIENT_DLL )
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// Constrained start?
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if ( HasSpawnFlags( SF_ITEM_START_CONSTRAINED ) )
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{
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//Constrain the weapon in place
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IPhysicsObject *pReferenceObject, *pAttachedObject;
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pReferenceObject = g_PhysWorldObject;
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pAttachedObject = VPhysicsGetObject();
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if ( pReferenceObject && pAttachedObject )
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{
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constraint_fixedparams_t fixed;
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fixed.Defaults();
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fixed.InitWithCurrentObjectState( pReferenceObject, pAttachedObject );
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fixed.constraint.forceLimit = lbs2kg( 10000 );
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fixed.constraint.torqueLimit = lbs2kg( 10000 );
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m_pConstraint = physenv->CreateFixedConstraint( pReferenceObject, pAttachedObject, NULL, fixed );
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m_pConstraint->SetGameData( (void *) this );
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}
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}
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#endif //CLIENT_DLL
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#if defined( HL2MP ) || defined( TF_DLL )
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SetThink( &CItem::FallThink );
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SetNextThink( gpGlobals->curtime + 0.1f );
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#endif
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}
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unsigned int CItem::PhysicsSolidMaskForEntity( void ) const
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{
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return BaseClass::PhysicsSolidMaskForEntity() | CONTENTS_PLAYERCLIP;
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}
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void CItem::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
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{
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CBasePlayer *pPlayer = ToBasePlayer( pActivator );
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if ( pPlayer )
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{
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pPlayer->PickupObject( this );
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}
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}
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extern int gEvilImpulse101;
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//-----------------------------------------------------------------------------
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// Activate when at rest, but don't allow pickup until then
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//-----------------------------------------------------------------------------
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void CItem::ActivateWhenAtRest( float flTime /* = 0.5f */ )
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{
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RemoveSolidFlags( FSOLID_TRIGGER );
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m_bActivateWhenAtRest = true;
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SetThink( &CItem::ComeToRest );
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SetNextThink( gpGlobals->curtime + flTime );
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}
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//-----------------------------------------------------------------------------
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// Become touchable when we are at rest
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//-----------------------------------------------------------------------------
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void CItem::OnEntityEvent( EntityEvent_t event, void *pEventData )
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{
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BaseClass::OnEntityEvent( event, pEventData );
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switch( event )
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{
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case ENTITY_EVENT_WATER_TOUCH:
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{
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// Delay rest for a sec, to avoid changing collision
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// properties inside a collision callback.
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SetThink( &CItem::ComeToRest );
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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break;
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}
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}
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//-----------------------------------------------------------------------------
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// Become touchable when we are at rest
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//-----------------------------------------------------------------------------
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void CItem::ComeToRest( void )
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{
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if ( m_bActivateWhenAtRest )
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{
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m_bActivateWhenAtRest = false;
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AddSolidFlags( FSOLID_TRIGGER );
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SetThink( NULL );
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}
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}
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#if defined( HL2MP ) || defined( TF_DLL )
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//-----------------------------------------------------------------------------
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// Purpose: Items that have just spawned run this think to catch them when
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// they hit the ground. Once we're sure that the object is grounded,
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// we change its solid type to trigger and set it in a large box that
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// helps the player get it.
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//-----------------------------------------------------------------------------
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void CItem::FallThink ( void )
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{
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SetNextThink( gpGlobals->curtime + 0.1f );
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#if defined( HL2MP )
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bool shouldMaterialize = false;
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IPhysicsObject *pPhysics = VPhysicsGetObject();
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if ( pPhysics )
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{
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shouldMaterialize = pPhysics->IsAsleep();
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}
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else
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{
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shouldMaterialize = (GetFlags() & FL_ONGROUND) ? true : false;
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}
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if ( shouldMaterialize )
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{
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SetThink ( NULL );
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m_vOriginalSpawnOrigin = GetAbsOrigin();
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m_vOriginalSpawnAngles = GetAbsAngles();
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HL2MPRules()->AddLevelDesignerPlacedObject( this );
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}
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#endif // HL2MP
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#if defined( TF_DLL )
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// We only come here if ActivateWhenAtRest() is never called,
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// which is the case when creating currencypacks in MvM
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if ( !( GetFlags() & FL_ONGROUND ) )
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{
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if ( !GetAbsVelocity().Length() && GetMoveType() == MOVETYPE_FLYGRAVITY )
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{
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// Mr. Game, meet Mr. Hammer. Mr. Hammer, meet the uncooperative Mr. Physics.
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// Mr. Physics really doesn't want to give our friend the FL_ONGROUND flag.
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// This means our wonderfully helpful radius currency collection code will be sad.
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// So in the name of justice, we ask that this flag be delivered unto him.
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SetMoveType( MOVETYPE_NONE );
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SetGroundEntity( GetWorldEntity() );
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}
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}
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else
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{
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SetThink( &CItem::ComeToRest );
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}
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#endif // TF
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}
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#endif // HL2MP, TF
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//-----------------------------------------------------------------------------
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// Purpose: Used to tell whether an item may be picked up by the player. This
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// accounts for solid obstructions being in the way.
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// Input : *pItem - item in question
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// *pPlayer - player attempting the pickup
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// Output : Returns true on success, false on failure.
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//-----------------------------------------------------------------------------
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bool UTIL_ItemCanBeTouchedByPlayer( CBaseEntity *pItem, CBasePlayer *pPlayer )
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{
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if ( pItem == NULL || pPlayer == NULL )
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return false;
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// For now, always allow a vehicle riding player to pick up things they're driving over
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if ( pPlayer->IsInAVehicle() )
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return true;
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// Get our test positions
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Vector vecStartPos;
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IPhysicsObject *pPhysObj = pItem->VPhysicsGetObject();
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if ( pPhysObj != NULL )
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{
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// Use the physics hull's center
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QAngle vecAngles;
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pPhysObj->GetPosition( &vecStartPos, &vecAngles );
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}
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else
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{
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// Use the generic bbox center
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vecStartPos = pItem->CollisionProp()->WorldSpaceCenter();
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}
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#ifdef TF_DLL
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//Plague powerup carrier collects health kits in a radius so we want to skip the occlusion trace
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CTFPlayer *pTFPlayer = dynamic_cast<CTFPlayer*>( pPlayer );
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if ( pTFPlayer && ( pTFPlayer->m_Shared.GetCarryingRuneType() == RUNE_PLAGUE ) )
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{
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CHealthKit *pHealthKit = dynamic_cast<CHealthKit*>( pItem );
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if ( pHealthKit )
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return true;
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}
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#endif
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Vector vecEndPos = pPlayer->EyePosition();
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// FIXME: This is the simple first try solution towards the problem. We need to take edges and shape more into account
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// for this to be fully robust.
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// Trace between to see if we're occluded
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trace_t tr;
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CTraceFilterSkipTwoEntities filter( pPlayer, pItem, COLLISION_GROUP_PLAYER_MOVEMENT );
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UTIL_TraceLine( vecStartPos, vecEndPos, MASK_SOLID, &filter, &tr );
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// Occluded
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// FIXME: For now, we exclude starting in solid because there are cases where this doesn't matter
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if ( tr.fraction < 1.0f )
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return false;
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Whether or not the item can be touched and picked up by the player, taking
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// into account obstructions and other hinderances
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// Output : Returns true on success, false on failure.
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//-----------------------------------------------------------------------------
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bool CItem::ItemCanBeTouchedByPlayer( CBasePlayer *pPlayer )
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{
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return UTIL_ItemCanBeTouchedByPlayer( this, pPlayer );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : pOther -
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//-----------------------------------------------------------------------------
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void CItem::ItemTouch( CBaseEntity *pOther )
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{
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// Vehicles can touch items + pick them up
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if ( pOther->GetServerVehicle() )
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{
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pOther = pOther->GetServerVehicle()->GetPassenger();
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if ( !pOther )
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return;
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}
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// if it's not a player, ignore
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if ( !pOther->IsPlayer() )
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return;
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CBasePlayer *pPlayer = (CBasePlayer *)pOther;
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// Must be a valid pickup scenario (no blocking). Though this is a more expensive
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// check than some that follow, this has to be first Obecause it's the only one
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// that inhibits firing the output OnCacheInteraction.
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if ( ItemCanBeTouchedByPlayer( pPlayer ) == false )
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return;
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m_OnCacheInteraction.FireOutput(pOther, this);
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// Can I even pick stuff up?
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if ( !pPlayer->IsAllowedToPickupWeapons() )
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return;
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// ok, a player is touching this item, but can he have it?
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if ( !g_pGameRules->CanHaveItem( pPlayer, this ) )
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{
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// no? Ignore the touch.
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return;
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}
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if ( MyTouch( pPlayer ) )
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{
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m_OnPlayerTouch.FireOutput(pOther, this);
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#if TF_DLL
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CHealthKit *pHealthKit = dynamic_cast<CHealthKit*>( this );
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if ( pHealthKit )
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{
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CTFPlayer *pTFPlayer = ToTFPlayer( pPlayer );
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if ( pTFPlayer && ( pTFPlayer->m_Shared.GetCarryingRuneType() == RUNE_PLAGUE ) )
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{
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DispatchParticleEffect( "plague_healthkit_pickup", GetAbsOrigin(), GetAbsAngles() );
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
SetTouch( NULL );
|
||
|
SetThink( NULL );
|
||
|
|
||
|
// player grabbed the item.
|
||
|
g_pGameRules->PlayerGotItem( pPlayer, this );
|
||
|
if ( g_pGameRules->ItemShouldRespawn( this ) == GR_ITEM_RESPAWN_YES )
|
||
|
{
|
||
|
Respawn();
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
UTIL_Remove( this );
|
||
|
|
||
|
#ifdef HL2MP
|
||
|
HL2MPRules()->RemoveLevelDesignerPlacedObject( this );
|
||
|
#endif
|
||
|
}
|
||
|
}
|
||
|
else if (gEvilImpulse101)
|
||
|
{
|
||
|
UTIL_Remove( this );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
CBaseEntity* CItem::Respawn( void )
|
||
|
{
|
||
|
SetTouch( NULL );
|
||
|
AddEffects( EF_NODRAW );
|
||
|
|
||
|
VPhysicsDestroyObject();
|
||
|
|
||
|
SetMoveType( MOVETYPE_NONE );
|
||
|
SetSolid( SOLID_BBOX );
|
||
|
AddSolidFlags( FSOLID_TRIGGER );
|
||
|
|
||
|
UTIL_SetOrigin( this, g_pGameRules->VecItemRespawnSpot( this ) );// blip to whereever you should respawn.
|
||
|
SetAbsAngles( g_pGameRules->VecItemRespawnAngles( this ) );// set the angles.
|
||
|
|
||
|
#if !defined( TF_DLL )
|
||
|
UTIL_DropToFloor( this, MASK_SOLID );
|
||
|
#endif
|
||
|
|
||
|
RemoveAllDecals(); //remove any decals
|
||
|
|
||
|
SetThink ( &CItem::Materialize );
|
||
|
SetNextThink( gpGlobals->curtime + g_pGameRules->FlItemRespawnTime( this ) );
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
void CItem::Materialize( void )
|
||
|
{
|
||
|
CreateItemVPhysicsObject();
|
||
|
|
||
|
if ( IsEffectActive( EF_NODRAW ) )
|
||
|
{
|
||
|
// changing from invisible state to visible.
|
||
|
|
||
|
#ifdef HL2MP
|
||
|
EmitSound( "AlyxEmp.Charge" );
|
||
|
#else
|
||
|
EmitSound( "Item.Materialize" );
|
||
|
#endif
|
||
|
RemoveEffects( EF_NODRAW );
|
||
|
DoMuzzleFlash();
|
||
|
}
|
||
|
|
||
|
SetTouch( &CItem::ItemTouch );
|
||
|
}
|
||
|
|
||
|
//-----------------------------------------------------------------------------
|
||
|
// Purpose:
|
||
|
//-----------------------------------------------------------------------------
|
||
|
void CItem::Precache()
|
||
|
{
|
||
|
BaseClass::Precache();
|
||
|
|
||
|
PrecacheScriptSound( "Item.Materialize" );
|
||
|
}
|
||
|
|
||
|
//-----------------------------------------------------------------------------
|
||
|
// Purpose:
|
||
|
// Input : *pPhysGunUser -
|
||
|
// PICKED_UP_BY_CANNON -
|
||
|
//-----------------------------------------------------------------------------
|
||
|
void CItem::OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason )
|
||
|
{
|
||
|
m_OnCacheInteraction.FireOutput(pPhysGunUser, this);
|
||
|
|
||
|
if ( reason == PICKED_UP_BY_CANNON )
|
||
|
{
|
||
|
// Expand the pickup box
|
||
|
CollisionProp()->UseTriggerBounds( true, ITEM_PICKUP_BOX_BLOAT * 2 );
|
||
|
|
||
|
if( m_pConstraint != NULL )
|
||
|
{
|
||
|
physenv->DestroyConstraint( m_pConstraint );
|
||
|
m_pConstraint = NULL;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
//-----------------------------------------------------------------------------
|
||
|
// Purpose:
|
||
|
// Input : *pPhysGunUser -
|
||
|
// reason -
|
||
|
//-----------------------------------------------------------------------------
|
||
|
void CItem::OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t reason )
|
||
|
{
|
||
|
// Restore the pickup box to the original
|
||
|
CollisionProp()->UseTriggerBounds( true, ITEM_PICKUP_BOX_BLOAT );
|
||
|
}
|