162 lines
3.6 KiB
C++
162 lines
3.6 KiB
C++
//========= Copyright © 2003, Valve LLC, All rights reserved. ==========
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//
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// Purpose: Hooks and classes for the support of humanoid NPCs with
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// groovy facial animation capabilities, aka, "Actors"
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//
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//=============================================================================
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#ifndef AI_TARGET_H
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#define AI_TARGET_H
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#include <utlarray.h>
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#if defined( _WIN32 )
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#pragma once
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#endif
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//-----------------------------------------------------------------------------
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// CAI_BaseActor
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//
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// Purpose: The base class for all facially expressive NPCS.
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//
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//-----------------------------------------------------------------------------
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class CMonsterTarget_t
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{
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public:
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enum TargetType_e
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{
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LOOKAT_ENTITY = 0,
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LOOKAT_POSITION,
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LOOKAT_BOTH
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};
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public:
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bool IsThis( CBaseEntity *pThis )
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{
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return (pThis == m_hTarget);
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};
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const Vector &GetPosition( void )
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{
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if( m_eType == LOOKAT_ENTITY && m_hTarget != NULL )
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m_vecPosition = m_hTarget->EyePosition();
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return m_vecPosition;
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};
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bool IsActive( void )
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{
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if( m_flEndTime < gpGlobals->time )
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return false;
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if( m_eType == LOOKAT_ENTITY && m_hTarget == NULL )
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return false;
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return true;
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};
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float Interest( void )
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{
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float t = (gpGlobals->time - m_flStartTime) / (m_flEndTime - m_flStartTime);
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if( t < 0.0f || t > 1.0f )
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return 0.0f;
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if( t < m_flRamp )
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{
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t = t / m_flRamp;
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}
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else if( t > 1.0f - m_flRamp )
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{
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t = (1.0 - t) / m_flRamp;
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}
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else
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{
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t = 1.0f;
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}
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// ramp
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t = 3.0f * t * t - 2.0f * t * t * t;
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t *= m_flInterest;
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return t;
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}
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public:
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TargetType_e m_eType; // ????
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EHANDLE m_hTarget;
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Vector m_vecPosition;
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float m_flStartTime;
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float m_flEndTime;
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float m_flRamp;
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float m_flInterest;
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};
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class CMonsterTarget : public CUtlArray<CMonsterTarget_t>
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{
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public:
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void Add( CBaseEntity *pTarget, float flImportance, float flDuration, float flRamp )
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{
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for( int i = 0; i < Count(); i++ )
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{
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CMonsterTarget_t &target = Element( i );
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if( target.m_hTarget == pTarget )
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{
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Remove( i );
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break;
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}
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}
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Add( CMonsterTarget_t::LOOKAT_ENTITY, pTarget, g_vecZero, flImportance, flDuration, flRamp );
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}
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void Add( const Vector &vecPosition, float flImportance, float flDuration, float flRamp )
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{
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for( int i = 0; i < Count(); i++ )
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{
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CMonsterTarget_t &target = Element( i );
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if( target.m_vecPosition == vecPosition )
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{
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Remove( i );
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break;
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}
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}
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Add( CMonsterTarget_t::LOOKAT_POSITION, NULL, vecPosition, flImportance, flDuration, flRamp );
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}
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void Add( CBaseEntity *pTarget, const Vector &vecPosition, float flImportance, float flDuration, float flRamp )
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{
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for( int i = 0; i < Count(); i++ )
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{
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CMonsterTarget_t &target = Element( i );
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if( target.m_hTarget == pTarget )
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{
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Remove( i );
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break;
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}
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}
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Add( CMonsterTarget_t::LOOKAT_BOTH, pTarget, vecPosition, flImportance, flDuration, flRamp );
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}
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private:
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void Add( CMonsterTarget_t::TargetType_e type, CBaseEntity *pTarget, const Vector &vecPosition, float flImportance, float flDuration, float flRamp )
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{
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int i = AddToTail();
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CMonsterTarget_t &target = Element( i );
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target.m_eType = type;
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target.m_hTarget = pTarget;
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target.m_vecPosition = vecPosition;
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target.m_flInterest = flImportance;
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target.m_flStartTime = gpGlobals->time;
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target.m_flEndTime = gpGlobals->time + flDuration;
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target.m_flRamp = flRamp / flDuration;
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}
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};
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//-----------------------------------------------------------------------------
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#endif // AI_TARGET_H
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