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| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /mp/src/game/client/c_movie_explosion.cpp | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'mp/src/game/client/c_movie_explosion.cpp')
| -rw-r--r-- | mp/src/game/client/c_movie_explosion.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/mp/src/game/client/c_movie_explosion.cpp b/mp/src/game/client/c_movie_explosion.cpp new file mode 100644 index 00000000..26d600e7 --- /dev/null +++ b/mp/src/game/client/c_movie_explosion.cpp @@ -0,0 +1,218 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "particle_prototype.h"
+#include "particle_util.h"
+#include "baseparticleentity.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// ------------------------------------------------------------------------- //
+// Definitions
+// ------------------------------------------------------------------------- //
+#define NUM_MOVIEEXPLOSION_EMITTERS 50
+#define EXPLOSION_EMITTER_LIFETIME 3
+#define EMITTED_PARTICLE_LIFETIME 1
+
+
+// ------------------------------------------------------------------------- //
+// Classes
+// ------------------------------------------------------------------------- //
+class MovieExplosionEmitter
+{
+public:
+ Vector m_Pos;
+ Vector m_Velocity;
+ float m_Lifetime;
+ TimedEvent m_ParticleSpawn;
+};
+
+
+class C_MovieExplosion : public C_BaseParticleEntity, public IPrototypeAppEffect
+{
+public:
+ DECLARE_CLASS( C_MovieExplosion, C_BaseParticleEntity );
+ DECLARE_CLIENTCLASS();
+
+ C_MovieExplosion();
+ ~C_MovieExplosion();
+
+// C_BaseEntity.
+public:
+ virtual void OnDataChanged(DataUpdateType_t updateType);
+
+// IPrototypeAppEffect.
+public:
+ virtual void Start(CParticleMgr *pParticleMgr, IPrototypeArgAccess *pArgs);
+
+// IParticleEffect.
+public:
+ virtual void Update(float fTimeDelta);
+ virtual void RenderParticles( CParticleRenderIterator *pIterator );
+ virtual void SimulateParticles( CParticleSimulateIterator *pIterator );
+
+
+public:
+ MovieExplosionEmitter m_Emitters[NUM_MOVIEEXPLOSION_EMITTERS];
+ float m_EmitterLifetime;
+
+ CParticleMgr *m_pParticleMgr;
+ PMaterialHandle m_iFireballMaterial;
+
+ // Setup for temporary usage in SimulateAndRender.
+ float m_EmitterAlpha;
+
+private:
+ C_MovieExplosion( const C_MovieExplosion & );
+
+};
+
+// Expose to the particle app.
+EXPOSE_PROTOTYPE_EFFECT(MovieExplosion, C_MovieExplosion);
+
+IMPLEMENT_CLIENTCLASS_DT(C_MovieExplosion, DT_MovieExplosion, MovieExplosion)
+END_RECV_TABLE()
+
+
+
+// ------------------------------------------------------------------------- //
+// C_MovieExplosion
+// ------------------------------------------------------------------------- //
+C_MovieExplosion::C_MovieExplosion()
+{
+ m_pParticleMgr = NULL;
+}
+
+
+C_MovieExplosion::~C_MovieExplosion()
+{
+ if(m_pParticleMgr)
+ m_pParticleMgr->RemoveEffect( &m_ParticleEffect );
+}
+
+
+void C_MovieExplosion::OnDataChanged(DataUpdateType_t updateType)
+{
+ C_BaseEntity::OnDataChanged(updateType);
+
+ if(updateType == DATA_UPDATE_CREATED)
+ {
+ Start( ParticleMgr(), NULL );
+ }
+}
+
+
+void C_MovieExplosion::Start(CParticleMgr *pParticleMgr, IPrototypeArgAccess *pArgs)
+{
+ if(!pParticleMgr->AddEffect(&m_ParticleEffect, this))
+ return;
+
+ // Setup our emitters.
+ for(int iEmitter=0; iEmitter < NUM_MOVIEEXPLOSION_EMITTERS; iEmitter++)
+ {
+ MovieExplosionEmitter *pEmitter = &m_Emitters[iEmitter];
+ pEmitter->m_Velocity = RandomVector(-1, 1) * 200;
+
+ pEmitter->m_Pos = GetAbsOrigin();
+
+ pEmitter->m_Lifetime = 0;
+ pEmitter->m_ParticleSpawn.Init(15);
+ }
+ m_EmitterLifetime = 0;
+
+ // Get our materials.
+ m_iFireballMaterial = m_ParticleEffect.FindOrAddMaterial("particle/particle_sphere");
+
+ m_pParticleMgr = pParticleMgr;
+}
+
+
+void C_MovieExplosion::Update(float fTimeDelta)
+{
+ if(!m_pParticleMgr)
+ return;
+
+ m_EmitterLifetime += fTimeDelta;
+ if(m_EmitterLifetime > EXPLOSION_EMITTER_LIFETIME)
+ return;
+
+ m_EmitterAlpha = (float)sin(m_EmitterLifetime * 3.14159f / EXPLOSION_EMITTER_LIFETIME);
+
+ // Simulate the emitters and have them spit out particles.
+ for(int iEmitter=0; iEmitter < NUM_MOVIEEXPLOSION_EMITTERS; iEmitter++)
+ {
+ MovieExplosionEmitter *pEmitter = &m_Emitters[iEmitter];
+
+ pEmitter->m_Pos = pEmitter->m_Pos + pEmitter->m_Velocity * fTimeDelta;
+ pEmitter->m_Velocity = pEmitter->m_Velocity * 0.9;
+
+ float tempDelta = fTimeDelta;
+ while(pEmitter->m_ParticleSpawn.NextEvent(tempDelta))
+ {
+ StandardParticle_t *pParticle =
+ (StandardParticle_t*)m_ParticleEffect.AddParticle( sizeof(StandardParticle_t), m_iFireballMaterial);
+
+ if(pParticle)
+ {
+ pParticle->m_Pos = pEmitter->m_Pos;
+ pParticle->m_Velocity = pEmitter->m_Velocity * 0.2f + RandomVector(-20, 20);
+ }
+ }
+ }
+}
+
+
+void C_MovieExplosion::RenderParticles( CParticleRenderIterator *pIterator )
+{
+ const StandardParticle_t *pParticle = (const StandardParticle_t*)pIterator->GetFirst();
+ while ( pParticle )
+ {
+ // Draw.
+ Vector tPos;
+ TransformParticle(m_pParticleMgr->GetModelView(), pParticle->m_Pos, tPos);
+ float sortKey = tPos.z;
+
+ float lifetimePercent = pParticle->m_Lifetime / EMITTED_PARTICLE_LIFETIME;
+ Vector color;
+ color.x = sin(lifetimePercent * 3.14159);
+ color.y = color.x * 0.5f;
+ color.z = 0;
+ RenderParticle_ColorSize(
+ pIterator->GetParticleDraw(),
+ tPos,
+ color,
+ m_EmitterAlpha * sin(3.14159 * lifetimePercent),
+ 10);
+
+ pParticle = (const StandardParticle_t*)pIterator->GetNext( sortKey );
+ }
+}
+
+void C_MovieExplosion::SimulateParticles( CParticleSimulateIterator *pIterator )
+{
+ StandardParticle_t *pParticle = (StandardParticle_t*)pIterator->GetFirst();
+ while ( pParticle )
+ {
+ // Update its lifetime.
+ pParticle->m_Lifetime += pIterator->GetTimeDelta();
+ if(pParticle->m_Lifetime > 1)
+ {
+ pIterator->RemoveParticle( pParticle );
+ }
+ else
+ {
+ // Move it (this comes after rendering to make it clear that moving the particle here won't change
+ // its rendering for this frame since m_TransformedPos has already been set).
+ pParticle->m_Pos = pParticle->m_Pos + pParticle->m_Velocity * pIterator->GetTimeDelta();
+ }
+
+ pParticle = (StandardParticle_t*)pIterator->GetNext();
+ }
+}
+
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