Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "cbase.h"
#include "basegrenade_shared.h"
#include "fx_interpvalue.h"
#include "fx_envelope.h"
#include "materialsystem/imaterialvar.h"
#include "particles_simple.h"
#include "particles_attractor.h"
// FIXME: Move out
extern void DrawSpriteTangentSpace( const Vector &vecOrigin, float flWidth, float flHeight, color32 color );
#define EXPLOSION_DURATION 3.0f
//-----------------------------------------------------------------------------
// Explosion effect for hopwire
//-----------------------------------------------------------------------------
class C_HopwireExplosion : public C_EnvelopeFX
{
typedef C_EnvelopeFX BaseClass;
public:
C_HopwireExplosion( void ) :
m_hOwner( NULL )
{
m_FXCoreScale.SetAbsolute( 0.0f );
m_FXCoreAlpha.SetAbsolute( 0.0f );
}
virtual void Update( void );
virtual int DrawModel( int flags );
virtual void GetRenderBounds( Vector& mins, Vector& maxs );
bool SetupEmitters( void );
void AddParticles( void );
void SetOwner( C_BaseEntity *pOwner );
void StartExplosion( void );
void StopExplosion( void );
void StartPreExplosion( void );
private:
CInterpolatedValue m_FXCoreScale;
CInterpolatedValue m_FXCoreAlpha;
CSmartPtr<CSimpleEmitter> m_pSimpleEmitter;
CSmartPtr<CParticleAttractor> m_pAttractorEmitter;
TimedEvent m_ParticleTimer;
CHandle<C_BaseEntity> m_hOwner;
};
//-----------------------------------------------------------------------------
// Purpose: Setup the emitters we'll be using
//-----------------------------------------------------------------------------
bool C_HopwireExplosion::SetupEmitters( void )
{
// Setup the basic core emitter
if ( m_pSimpleEmitter.IsValid() == false )
{
m_pSimpleEmitter = CSimpleEmitter::Create( "hopwirecore" );
if ( m_pSimpleEmitter.IsValid() == false )
return false;
}
// Setup the attractor emitter
if ( m_pAttractorEmitter.IsValid() == false )
{
m_pAttractorEmitter = CParticleAttractor::Create( GetRenderOrigin(), "hopwireattractor" );
if ( m_pAttractorEmitter.IsValid() == false )
return false;
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void C_HopwireExplosion::AddParticles( void )
{
// Make sure the emitters are setup properly
if ( SetupEmitters() == false )
return;
float tempDelta = gpGlobals->frametime;
while( m_ParticleTimer.NextEvent( tempDelta ) )
{
// ========================
// Attracted dust particles
// ========================
// Update our attractor point
m_pAttractorEmitter->SetAttractorOrigin( GetRenderOrigin() );
Vector offset;
SimpleParticle *sParticle;
offset = GetRenderOrigin() + RandomVector( -256.0f, 256.0f );
sParticle = (SimpleParticle *) m_pAttractorEmitter->AddParticle( sizeof(SimpleParticle), g_Mat_Fleck_Cement[0], offset );
if ( sParticle == NULL )
return;
sParticle->m_vecVelocity = Vector(0,0,8);
sParticle->m_flDieTime = 0.5f;
sParticle->m_flLifetime = 0.0f;
sParticle->m_flRoll = Helper_RandomInt( 0, 360 );
sParticle->m_flRollDelta = 1.0f;
float alpha = random->RandomFloat( 128.0f, 200.0f );
sParticle->m_uchColor[0] = alpha;
sParticle->m_uchColor[1] = alpha;
sParticle->m_uchColor[2] = alpha;
sParticle->m_uchStartAlpha = alpha;
sParticle->m_uchEndAlpha = alpha;
sParticle->m_uchStartSize = random->RandomInt( 1, 4 );
sParticle->m_uchEndSize = 0;
// ========================
// Core effects
// ========================
// Reset our sort origin
m_pSimpleEmitter->SetSortOrigin( GetRenderOrigin() );
// Base of the core effect
sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( "effects/strider_muzzle" ), GetRenderOrigin() );
if ( sParticle == NULL )
return;
sParticle->m_vecVelocity = vec3_origin;
sParticle->m_flDieTime = 0.2f;
sParticle->m_flLifetime = 0.0f;
sParticle->m_flRoll = Helper_RandomInt( 0, 360 );
sParticle->m_flRollDelta = 4.0f;
alpha = random->RandomInt( 32, 200 );
sParticle->m_uchColor[0] = alpha;
sParticle->m_uchColor[1] = alpha;
sParticle->m_uchColor[2] = alpha;
sParticle->m_uchStartAlpha = 0;
sParticle->m_uchEndAlpha = alpha;
sParticle->m_uchStartSize = 255;
sParticle->m_uchEndSize = 0;
// Make sure we encompass the complete particle here!
m_pSimpleEmitter->SetParticleCullRadius( sParticle->m_uchEndSize );
// =========================
// Dust ring effect
// =========================
if ( random->RandomInt( 0, 5 ) != 1 )
return;
Vector vecDustColor;
vecDustColor.x = 0.35f;
vecDustColor.y = 0.3f;
vecDustColor.z = 0.25f;
Vector color;
int numRingSprites = 8;
float yaw;
Vector forward, vRight, vForward;
vForward = Vector( 0, 1, 0 );
vRight = Vector( 1, 0, 0 );
float yawOfs = random->RandomFloat( 0, 359 );
for ( int i = 0; i < numRingSprites; i++ )
{
yaw = ( (float) i / (float) numRingSprites ) * 360.0f;
yaw += yawOfs;
forward = ( vRight * sin( DEG2RAD( yaw) ) ) + ( vForward * cos( DEG2RAD( yaw ) ) );
VectorNormalize( forward );
trace_t tr;
UTIL_TraceLine( GetRenderOrigin(), GetRenderOrigin()+(Vector(0, 0, -1024)), MASK_SOLID_BRUSHONLY, NULL, COLLISION_GROUP_NONE, &tr );
offset = ( RandomVector( -4.0f, 4.0f ) + tr.endpos ) + ( forward * 512.0f );
sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), g_Mat_DustPuff[random->RandomInt(0,1)], offset );
if ( sParticle != NULL )
{
sParticle->m_flLifetime = 0.0f;
sParticle->m_flDieTime = random->RandomFloat( 0.25f, 0.5f );
sParticle->m_vecVelocity = forward * -random->RandomFloat( 1000, 1500 );
sParticle->m_vecVelocity[2] += 128.0f;
#if __EXPLOSION_DEBUG
debugoverlay->AddLineOverlay( m_vecOrigin, m_vecOrigin + sParticle->m_vecVelocity, 255, 0, 0, false, 3 );
#endif
sParticle->m_uchColor[0] = vecDustColor.x * 255.0f;
sParticle->m_uchColor[1] = vecDustColor.y * 255.0f;
sParticle->m_uchColor[2] = vecDustColor.z * 255.0f;
sParticle->m_uchStartSize = random->RandomInt( 32, 128 );
sParticle->m_uchEndSize = 200;
sParticle->m_uchStartAlpha = random->RandomFloat( 16, 64 );
sParticle->m_uchEndAlpha = 0;
sParticle->m_flRoll = random->RandomInt( 0, 360 );
sParticle->m_flRollDelta = random->RandomFloat( -16.0f, 16.0f );
}
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pOwner -
//-----------------------------------------------------------------------------
void C_HopwireExplosion::SetOwner( C_BaseEntity *pOwner )
{
m_hOwner = pOwner;
}
//-----------------------------------------------------------------------------
// Purpose: Updates the internal values for the effect
//-----------------------------------------------------------------------------
void C_HopwireExplosion::Update( void )
{
if ( m_hOwner )
{
SetRenderOrigin( m_hOwner->GetRenderOrigin() );
}
BaseClass::Update();
}
//-----------------------------------------------------------------------------
// Purpose: Updates and renders all effects
//-----------------------------------------------------------------------------
int C_HopwireExplosion::DrawModel( int flags )
{
AddParticles();
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->Flush();
UpdateRefractTexture();
IMaterial *pMat = materials->FindMaterial( "effects/strider_pinch_dudv", TEXTURE_GROUP_CLIENT_EFFECTS );
float refract = m_FXCoreAlpha.Interp( gpGlobals->curtime );
float scale = m_FXCoreScale.Interp( gpGlobals->curtime );
IMaterialVar *pVar = pMat->FindVar( "$refractamount", NULL );
pVar->SetFloatValue( refract );
pRenderContext->Bind( pMat, (IClientRenderable*)this );
float sin1 = sinf( gpGlobals->curtime * 10 );
float sin2 = sinf( gpGlobals->curtime );
float scaleY = ( sin1 * sin2 ) * 32.0f;
float scaleX = (sin2 * sin2) * 32.0f;
// FIXME: The ball needs to sort properly at all times
static color32 white = {255,255,255,255};
DrawSpriteTangentSpace( GetRenderOrigin() + ( CurrentViewForward() * 128.0f ), scale+scaleX, scale+scaleY, white );
return 1;
}
//-----------------------------------------------------------------------------
// Purpose: Returns the bounds relative to the origin (render bounds)
//-----------------------------------------------------------------------------
void C_HopwireExplosion::GetRenderBounds( Vector& mins, Vector& maxs )
{
float scale = m_FXCoreScale.Interp( gpGlobals->curtime );
mins.Init( -scale, -scale, -scale );
maxs.Init( scale, scale, scale );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void C_HopwireExplosion::StartExplosion( void )
{
m_FXCoreScale.Init( 300.0f, 500.0f, 2.0f, INTERP_SPLINE );
m_FXCoreAlpha.Init( 0.0f, 0.1f, 1.5f, INTERP_SPLINE );
// Particle timer
m_ParticleTimer.Init( 60 );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void C_HopwireExplosion::StopExplosion( void )
{
m_FXCoreAlpha.InitFromCurrent( 0.0f, 1.0f, INTERP_SPLINE );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void C_HopwireExplosion::StartPreExplosion( void )
{
}
//-----------------------------------------------------------------------------
// Hopwire client class
//-----------------------------------------------------------------------------
class C_GrenadeHopwire : public C_BaseGrenade
{
DECLARE_CLASS( C_GrenadeHopwire, C_BaseGrenade );
DECLARE_CLIENTCLASS();
public:
C_GrenadeHopwire( void );
virtual int DrawModel( int flags );
virtual void OnDataChanged( DataUpdateType_t updateType );
virtual void ReceiveMessage( int classID, bf_read &msg );
private:
C_HopwireExplosion m_ExplosionEffect; // Explosion effect information and drawing
};
IMPLEMENT_CLIENTCLASS_DT( C_GrenadeHopwire, DT_GrenadeHopwire, CGrenadeHopwire )
END_RECV_TABLE()
#define HOPWIRE_START_EXPLOSION 0
#define HOPWIRE_STOP_EXPLOSION 1
#define HOPWIRE_START_PRE_EXPLOSION 2
//-----------------------------------------------------------------------------
// Constructor
//-----------------------------------------------------------------------------
C_GrenadeHopwire::C_GrenadeHopwire( void )
{
m_ExplosionEffect.SetActive( false );
}
//-----------------------------------------------------------------------------
// Purpose: Receive messages from the server
// Input : classID - class to receive the message
// &msg - message in question
//-----------------------------------------------------------------------------
void C_GrenadeHopwire::ReceiveMessage( int classID, bf_read &msg )
{
if ( classID != GetClientClass()->m_ClassID )
{
// Message is for subclass
BaseClass::ReceiveMessage( classID, msg );
return;
}
int messageType = msg.ReadByte();
switch( messageType )
{
case HOPWIRE_START_EXPLOSION:
{
m_ExplosionEffect.SetActive();
m_ExplosionEffect.SetOwner( this );
m_ExplosionEffect.StartExplosion();
}
break;
case HOPWIRE_STOP_EXPLOSION:
{
m_ExplosionEffect.StopExplosion();
}
break;
default:
break;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : updateType -
//-----------------------------------------------------------------------------
void C_GrenadeHopwire::OnDataChanged( DataUpdateType_t updateType )
{
BaseClass::OnDataChanged( updateType );
m_ExplosionEffect.Update();
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : flags -
//-----------------------------------------------------------------------------
int C_GrenadeHopwire::DrawModel( int flags )
{
if ( m_ExplosionEffect.IsActive() )
return 1;
return BaseClass::DrawModel( flags );
}