138 lines
4.0 KiB
C++
138 lines
4.0 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 "particles_simple.h"
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#include "particlemgr.h"
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#include "particle_collision.h"
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#include "env_objecteffects.h"
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CObjectSmokeParticles::Setup( const Vector &origin, const Vector *direction, float angularSpread, float minSpeed, float maxSpeed, float gravity, float dampen, int flags )
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{
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// See if we've specified a direction
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m_ParticleCollision.Setup( origin, direction, angularSpread, minSpeed, maxSpeed, gravity, dampen );
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}
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void CObjectSmokeParticles::SimulateParticles( CParticleSimulateIterator *pIterator )
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{
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float timeDelta = pIterator->GetTimeDelta();
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ObjectSmokeParticle *pParticle = (ObjectSmokeParticle*)pIterator->GetFirst();
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while ( pParticle )
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{
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//Update velocity
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UpdateVelocity( pParticle, timeDelta );
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pParticle->m_Pos += (pParticle->m_vecVelocity * timeDelta);
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pParticle->m_vecVelocity += pParticle->m_vecAcceleration * 2 * timeDelta;
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//Should this particle die?
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pParticle->m_flLifetime += timeDelta;
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UpdateRoll( pParticle, timeDelta );
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if ( pParticle->m_flLifetime >= pParticle->m_flDieTime )
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pIterator->RemoveParticle( pParticle );
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pParticle = (ObjectSmokeParticle*)pIterator->GetNext();
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}
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}
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void CObjectSmokeParticles::RenderParticles( CParticleRenderIterator *pIterator )
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{
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const ObjectSmokeParticle *pParticle = (const ObjectSmokeParticle *)pIterator->GetFirst();
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while ( pParticle )
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{
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//Render
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Vector tPos;
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TransformParticle( ParticleMgr()->GetModelView(), pParticle->m_Pos, tPos );
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float sortKey = (int) tPos.z;
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//Render it
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RenderParticle_ColorSizeAngle(
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pIterator->GetParticleDraw(),
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tPos,
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UpdateColor( pParticle ),
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UpdateAlpha( pParticle ) * GetAlphaDistanceFade( tPos, m_flNearClipMin, m_flNearClipMax ),
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UpdateScale( pParticle ),
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pParticle->m_flRoll );
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pParticle = (const ObjectSmokeParticle *)pIterator->GetNext( sortKey );
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CObjectFireParticles::Setup( const Vector &origin, const Vector *direction, float angularSpread, float minSpeed, float maxSpeed, float gravity, float dampen, int flags )
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{
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}
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void CObjectFireParticles::SimulateParticles( CParticleSimulateIterator *pIterator )
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{
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float timeDelta = pIterator->GetTimeDelta();
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ObjectFireParticle *pParticle = (ObjectFireParticle*)pIterator->GetFirst();
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while ( pParticle )
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{
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// Lost our parent?
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if ( !pParticle->m_hParent )
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{
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pIterator->RemoveParticle( pParticle );
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}
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else
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{
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// Update position to match our parent
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Vector vecFire;
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QAngle angFire;
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if ( pParticle->m_hParent->GetAttachment( pParticle->m_iAttachmentPoint, vecFire, angFire ) )
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{
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pParticle->m_Pos = vecFire;
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}
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// Should this particle die?
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pParticle->m_flLifetime += timeDelta;
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UpdateRoll( pParticle, timeDelta );
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if ( pParticle->m_flLifetime >= pParticle->m_flDieTime )
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pIterator->RemoveParticle( pParticle );
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}
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pParticle = (ObjectFireParticle*)pIterator->GetNext();
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}
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}
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void CObjectFireParticles::RenderParticles( CParticleRenderIterator *pIterator )
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{
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const ObjectFireParticle *pParticle = (const ObjectFireParticle *)pIterator->GetFirst();
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while ( pParticle )
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{
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// Render
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Vector tPos;
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TransformParticle( ParticleMgr()->GetModelView(), pParticle->m_Pos, tPos );
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float sortKey = (int) tPos.z;
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// Render it
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RenderParticle_ColorSizeAngle(
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pIterator->GetParticleDraw(),
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tPos,
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UpdateColor( pParticle ),
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UpdateAlpha( pParticle ) * GetAlphaDistanceFade( tPos, m_flNearClipMin, m_flNearClipMax ),
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UpdateScale( pParticle ),
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pParticle->m_flRoll
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);
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pParticle = (const ObjectFireParticle *)pIterator->GetNext( sortKey );
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}
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}
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