66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: Simple logical entity that counts up to a threshold value, then
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// fires an output when reached.
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//
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//=============================================================================//
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#include "cbase.h"
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class CMyLogicalEntity : public CLogicalEntity
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{
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public:
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DECLARE_CLASS( CMyLogicalEntity , CLogicalEntity );
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DECLARE_DATADESC();
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// Constructor
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CMyLogicalEntity ( void ) : m_nCounter( 0 ) {}
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// Input function
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void InputTick( inputdata_t &inputData );
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private:
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int m_nThreshold; // Count at which to fire our output
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int m_nCounter; // Internal counter
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COutputEvent m_OnThreshold; // Output even when the counter reaches the threshold
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};
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LINK_ENTITY_TO_CLASS( my_logical_entity, CMyLogicalEntity );
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// Start of our data description for the class
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BEGIN_DATADESC( CMyLogicalEntity )
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// For save/load
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DEFINE_FIELD( m_nCounter, FIELD_INTEGER ),
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// Links our member variable to our keyvalue from Hammer
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DEFINE_KEYFIELD( m_nThreshold, FIELD_INTEGER, "threshold" ),
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// Links our input name from Hammer to our input member function
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DEFINE_INPUTFUNC( FIELD_VOID, "Tick", InputTick ),
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// Links our output member to the output name used by Hammer
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DEFINE_OUTPUT( m_OnThreshold, "OnThreshold" ),
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END_DATADESC()
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//-----------------------------------------------------------------------------
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// Purpose: Handle a tick input from another entity
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//-----------------------------------------------------------------------------
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void CMyLogicalEntity ::InputTick( inputdata_t &inputData )
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{
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// Increment our counter
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m_nCounter++;
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// See if we've met or crossed our threshold value
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if ( m_nCounter >= m_nThreshold )
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{
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// Fire an output event
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m_OnThreshold.FireOutput( inputData.pActivator, this );
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// Reset our counter
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m_nCounter = 0;
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}
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} |