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86 lines
2.1 KiB
86 lines
2.1 KiB
5 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 "c_entity_burn_effect.h"
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#define NUM_BURN_PARTICLES_PER_SEC 50
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IMPLEMENT_CLIENTCLASS_DT( C_EntityBurnEffect, DT_EntityBurnEffect, CEntityBurnEffect )
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RecvPropInt( RECVINFO( m_hBurningEntity ) )
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END_RECV_TABLE()
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C_EntityBurnEffect::C_EntityBurnEffect()
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{
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m_pEmitter = CSimpleEmitter::Create( "Entity burn effect" );
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if ( m_pEmitter.IsValid() )
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{
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m_hFireMaterial = m_pEmitter->GetPMaterial( "particle/fire" );
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}
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else
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{
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m_hFireMaterial = INVALID_MATERIAL_HANDLE;
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}
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m_Timer.Init( NUM_BURN_PARTICLES_PER_SEC );
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}
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void C_EntityBurnEffect::OnDataChanged( DataUpdateType_t updateType )
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{
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if ( updateType == DATA_UPDATE_CREATED )
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{
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SetNextClientThink( CLIENT_THINK_ALWAYS );
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}
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}
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void C_EntityBurnEffect::ClientThink()
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{
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if ( !m_pEmitter.IsValid() || IsDormant() )
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return;
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// Add some burning particles to our target entity.
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C_BaseEntity *pEnt = ClientEntityList().GetBaseEntity( m_hBurningEntity );
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if ( !pEnt )
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return;
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float dt = gpGlobals->frametime;
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while ( m_Timer.NextEvent( dt ) )
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{
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Vector vDims = (pEnt->WorldAlignMaxs() - pEnt->WorldAlignMins()) * 0.5f;
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Vector vCenter = pEnt->GetAbsOrigin() + pEnt->WorldAlignMins() + vDims;
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Vector vPos = vCenter + vDims * RandomVector( -0.7, 0.7 );
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float flLifetime = 1;
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float flRadius = 3;
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unsigned char uchColor[4] = { 255, 100, 0, 100 };
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SimpleParticle *pParticle = m_pEmitter->AddSimpleParticle( m_hFireMaterial, vPos, flLifetime, flRadius );
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if ( pParticle )
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{
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pParticle->m_uchColor[0] = uchColor[0];
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pParticle->m_uchColor[1] = uchColor[1];
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pParticle->m_uchColor[2] = uchColor[2];
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pParticle->m_uchEndAlpha = 0;
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pParticle->m_uchStartAlpha = uchColor[3];
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pParticle->m_vecVelocity.x = RandomFloat( -2, 2 );
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pParticle->m_vecVelocity.y = RandomFloat( -2, 2 );
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pParticle->m_vecVelocity.z = RandomFloat( 3, 29 );
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// Pick up some velocity from the burning guy running around.
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pParticle->m_vecVelocity += pEnt->GetAbsVelocity() * 0.6;
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}
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}
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}
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