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| 1 | +//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============// |
| 2 | +// |
| 3 | +// Purpose: |
| 4 | +// |
| 5 | +//=============================================================================// |
| 6 | + |
| 7 | +#include "edict.h" |
| 8 | +#include "timedeventmgr.h" |
| 9 | +#include "tier0/vprof.h" |
| 10 | + |
| 11 | +// memdbgon must be the last include file in a .cpp file!!! |
| 12 | +#include "tier0/memdbgon.h" |
| 13 | + |
| 14 | +extern CGlobalVars *gpGlobals; |
| 15 | + |
| 16 | +// ------------------------------------------------------------------------------------------ // |
| 17 | +// CEventRegister. |
| 18 | +// ------------------------------------------------------------------------------------------ // |
| 19 | + |
| 20 | +CEventRegister::CEventRegister() |
| 21 | +{ |
| 22 | + m_bRegistered = false; |
| 23 | + m_pEventMgr = NULL; |
| 24 | +} |
| 25 | + |
| 26 | + |
| 27 | +CEventRegister::~CEventRegister() |
| 28 | +{ |
| 29 | + Term(); |
| 30 | +} |
| 31 | + |
| 32 | + |
| 33 | +void CEventRegister::Init( CTimedEventMgr *pMgr, IEventRegisterCallback *pCallback ) |
| 34 | +{ |
| 35 | + Term(); |
| 36 | + m_pEventMgr = pMgr; |
| 37 | + m_pCallback = pCallback; |
| 38 | +} |
| 39 | + |
| 40 | + |
| 41 | +void CEventRegister::Term() |
| 42 | +{ |
| 43 | + // Unregister. |
| 44 | + if ( m_pEventMgr && m_bRegistered ) |
| 45 | + { |
| 46 | + m_pEventMgr->RemoveEvent( this ); |
| 47 | + } |
| 48 | +} |
| 49 | + |
| 50 | + |
| 51 | +void CEventRegister::SetUpdateInterval( float interval ) |
| 52 | +{ |
| 53 | + Assert( m_pEventMgr ); |
| 54 | + |
| 55 | + if ( m_pEventMgr ) |
| 56 | + { |
| 57 | + // Register for this event. |
| 58 | + m_flUpdateInterval = interval; |
| 59 | + m_flNextEventTime = gpGlobals->curtime + m_flUpdateInterval; |
| 60 | + |
| 61 | + m_pEventMgr->RegisterForNextEvent( this ); |
| 62 | + } |
| 63 | +} |
| 64 | + |
| 65 | + |
| 66 | +void CEventRegister::StopUpdates() |
| 67 | +{ |
| 68 | + if ( m_pEventMgr ) |
| 69 | + { |
| 70 | + // Unregister our next event. |
| 71 | + m_pEventMgr->RemoveEvent( this ); |
| 72 | + } |
| 73 | +} |
| 74 | + |
| 75 | + |
| 76 | +void CEventRegister::Reregister() |
| 77 | +{ |
| 78 | + if ( m_flUpdateInterval > 1e-6 && m_pEventMgr ) |
| 79 | + { |
| 80 | + while ( m_flNextEventTime <= gpGlobals->curtime ) |
| 81 | + { |
| 82 | + m_flNextEventTime += m_flUpdateInterval; |
| 83 | + } |
| 84 | + |
| 85 | + m_pEventMgr->RegisterForNextEvent( this ); |
| 86 | + } |
| 87 | +} |
| 88 | + |
| 89 | + |
| 90 | +// ------------------------------------------------------------------------------------------ // |
| 91 | +// CTimedEventMgr. |
| 92 | +// ------------------------------------------------------------------------------------------ // |
| 93 | + |
| 94 | +bool TimedEventMgr_LessFunc( CEventRegister* const &a, CEventRegister* const &b ) |
| 95 | +{ |
| 96 | + return a->m_flNextEventTime > b->m_flNextEventTime; |
| 97 | +} |
| 98 | + |
| 99 | + |
| 100 | +CTimedEventMgr::CTimedEventMgr() |
| 101 | +{ |
| 102 | + m_Events.SetLessFunc( TimedEventMgr_LessFunc ); |
| 103 | +} |
| 104 | + |
| 105 | + |
| 106 | +void CTimedEventMgr::FireEvents() |
| 107 | +{ |
| 108 | + VPROF( "CTimedEventMgr::FireEvents" ); |
| 109 | + while ( m_Events.Count() ) |
| 110 | + { |
| 111 | + // Fire the top element, then break out. |
| 112 | + CEventRegister *pEvent = m_Events.ElementAtHead(); |
| 113 | + if ( gpGlobals->curtime >= pEvent->m_flNextEventTime ) |
| 114 | + { |
| 115 | + // Reregister for the timed event, then fire the callback for the event. |
| 116 | + m_Events.RemoveAtHead(); |
| 117 | + pEvent->m_bRegistered = false; |
| 118 | + pEvent->Reregister(); |
| 119 | + |
| 120 | + pEvent->m_pCallback->FireEvent(); |
| 121 | + } |
| 122 | + else |
| 123 | + { |
| 124 | + break; |
| 125 | + } |
| 126 | + } |
| 127 | +} |
| 128 | + |
| 129 | + |
| 130 | +void CTimedEventMgr::RegisterForNextEvent( CEventRegister *pEvent ) |
| 131 | +{ |
| 132 | + RemoveEvent( pEvent ); |
| 133 | + m_Events.Insert( pEvent ); |
| 134 | + pEvent->m_bRegistered = true; |
| 135 | +} |
| 136 | + |
| 137 | + |
| 138 | +void CTimedEventMgr::RemoveEvent( CEventRegister *pEvent ) |
| 139 | +{ |
| 140 | + if ( pEvent->m_bRegistered ) |
| 141 | + { |
| 142 | + // Find the event in the list and remove it. |
| 143 | + int cnt = m_Events.Count(); |
| 144 | + for ( int i=0; i < cnt; i++ ) |
| 145 | + { |
| 146 | + if ( m_Events.Element( i ) == pEvent ) |
| 147 | + { |
| 148 | + m_Events.RemoveAt( i ); |
| 149 | + break; |
| 150 | + } |
| 151 | + } |
| 152 | + } |
| 153 | +} |
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