140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#include "cbase.h"
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#include "particle_litsmokeemitter.h"
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//
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// CLitSmokeEmitter
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//
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CLitSmokeEmitter::CLitSmokeEmitter( const char *pDebugName ) : CSimpleEmitter( pDebugName )
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{
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m_bInitted = false;
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m_hSmokeMaterial = INVALID_MATERIAL_HANDLE;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : *materialName -
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//-----------------------------------------------------------------------------
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void CLitSmokeEmitter::Init( const char *materialName, Vector sortOrigin )
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{
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m_hSmokeMaterial = GetPMaterial( materialName );
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IMaterial *pMaterial = ParticleMgr()->PMaterialToIMaterial( m_hSmokeMaterial );
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if ( pMaterial )
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{
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m_Renderer.Init( ParticleMgr(), pMaterial );
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}
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SetSortOrigin( sortOrigin );
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m_bInitted = true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : position -
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// color -
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//-----------------------------------------------------------------------------
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void CLitSmokeEmitter::SetDirectionalLight( Vector position, Vector color, float intensity )
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{
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CParticleLightInfo info;
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info.m_flIntensity = intensity;
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info.m_vColor = color;
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info.m_vPos = position;
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m_Renderer.SetDirectionalLight( info );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : position -
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// color -
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// intensity -
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//-----------------------------------------------------------------------------
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void CLitSmokeEmitter::SetLight( Vector position, Vector color, float intensity )
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{
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CParticleLightInfo info;
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info.m_flIntensity = intensity;
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info.m_vColor = color;
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info.m_vPos = position;
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m_Renderer.SetAmbientLight( info );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : flTimeDelta -
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//-----------------------------------------------------------------------------
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void CLitSmokeEmitter::Update( float flTimeDelta )
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{
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if ( flTimeDelta > 0.0f )
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{
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//m_Renderer.DirectionalLight().m_vColor *= 0.9f;
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}
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CSimpleEmitter::Update( flTimeDelta );
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}
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void CLitSmokeEmitter::StartRender( VMatrix &effectMatrix )
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{
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m_Renderer.StartRender( effectMatrix );
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}
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void CLitSmokeEmitter::RenderParticles( CParticleRenderIterator *pIterator )
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{
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const LitSmokeParticle *pParticle = (const LitSmokeParticle*)pIterator->GetFirst();
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while ( pParticle )
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{
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float tLifetime = pParticle->m_flLifetime / pParticle->m_flDieTime;
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// Transform.
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Vector tPos;
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TransformParticle( ParticleMgr()->GetModelView(), pParticle->m_Pos, tPos );
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float sortKey = tPos.z;
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float alpha255 = ( ( (float) pParticle->m_uchColor[3]/255.0f ) * sin( M_PI_F * tLifetime ) ) * 255.0f;
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Vector color01 = Vector( pParticle->m_uchColor[0], pParticle->m_uchColor[1], pParticle->m_uchColor[2] ) * (tLifetime / 255.0f);
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m_Renderer.RenderParticle_AddColor (
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pIterator->GetParticleDraw(),
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pParticle->m_Pos,
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tPos,
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alpha255,
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FLerp( pParticle->m_uchStartSize, pParticle->m_uchEndSize, tLifetime ),
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color01
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);
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pParticle = (const LitSmokeParticle*)pIterator->GetNext( sortKey );
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}
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}
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void CLitSmokeEmitter::SimulateParticles( CParticleSimulateIterator *pIterator )
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{
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// Make sure they've called Init().
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Assert( m_bInitted );
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LitSmokeParticle *pParticle = (LitSmokeParticle*)pIterator->GetFirst();
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while ( pParticle )
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{
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// Should this particle die?
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pParticle->m_flLifetime += pIterator->GetTimeDelta();
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pParticle->m_Pos = pParticle->m_Pos + ( pParticle->m_vecVelocity * pIterator->GetTimeDelta() );
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if ( pParticle->m_flLifetime >= pParticle->m_flDieTime )
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pIterator->RemoveParticle( pParticle );
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pParticle = (LitSmokeParticle*)pIterator->GetNext();
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}
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}
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