void CGroundLine::Draw()
{
if ( !m_pMaterial || m_nPoints < 2 )
return;
if ( !IsVisible() )
return;
float flAlpha = m_Alpha;
if( g_pClientMode == ClientModeCommander() )
{
flAlpha = 1; // draw bright..
}
CBeamSegDraw beamDraw;
beamDraw.Start( m_nPoints, m_pMaterial );
for( unsigned int i=0; i < m_nPoints; i++ )
{
float t = (float)i / (m_nPoints - 1);
CBeamSeg seg;
seg.m_vPos = m_Points[i];
VectorLerp( m_vStartColor, m_vEndColor, t, seg.m_vColor );
seg.m_flTexCoord = 0;
seg.m_flWidth = m_LineWidth;
seg.m_flAlpha = m_Alpha;
beamDraw.NextSeg( &seg );
}
beamDraw.End();
}
int C_Hairball::DrawModel( int flags )
{
if ( !m_pMaterial )
return 0;
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
for ( int iHair=0; iHair < m_nHairs; iHair++ )
{
CSimplePhysics::CNode *pBase = &m_Nodes[iHair * m_nNodesPerHair];
CBeamSegDraw beamDraw;
beamDraw.Start( pRenderContext, m_nNodesPerHair-1, m_pMaterial );
for ( int i=0; i < m_nNodesPerHair; i++ )
{
BeamSeg_t seg;
seg.m_vPos = pBase[i].m_vPredicted;
seg.m_vColor.Init( 0, 0, 0 );
seg.m_flTexCoord = 0;
static float flHairWidth = 1;
seg.m_flWidth = flHairWidth;
seg.m_flAlpha = 0;
beamDraw.NextSeg( &seg );
}
beamDraw.End();
}
return 1;
}
int C_WalkerStrider::DrawModel( int flags )
{
BaseClass::DrawModel( flags );
IMaterial *pMaterial = materials->FindMaterial( STRIDER_BEAM_MATERIAL, TEXTURE_GROUP_CLIENT_EFFECTS );
// hogsy start
CMatRenderContextPtr pRenderContext(materials);
// hogsy end
Vector vGunPos;
QAngle vAngles;
BaseClass::GetAttachment( LookupAttachment( "BigGun" ), vGunPos, vAngles );
// Draw our beam effects.
FOR_EACH_LL( m_BeamEffects, i )
{
CStriderBeamEffect *pEff = &m_BeamEffects[i];
float flAlpha = (gpGlobals->curtime - pEff->m_flStartTime) / STRIDER_BEAM_LIFETIME;
flAlpha = 1.0 - clamp( flAlpha, 0, 1 );
CBeamSegDraw segDraw;
// hogsy start
segDraw.Start(pRenderContext, 2, pMaterial);
BeamSeg_t seg;
// hogsy end
seg.m_vColor.Init( 1, 0, 0 );
seg.m_flWidth = STRIDER_BEAM_WIDTH;
seg.m_flAlpha = flAlpha;
seg.m_flTexCoord = 0;
seg.m_vPos = vGunPos;
segDraw.NextSeg( &seg );
seg.m_flTexCoord = 1;
seg.m_vPos = pEff->m_vHitPos;
segDraw.NextSeg( &seg );
segDraw.End();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CSpriteTrail::DrawModel( int flags )
{
VPROF_BUDGET( "CSpriteTrail::DrawModel", VPROF_BUDGETGROUP_PARTICLE_RENDERING );
// Must have at least one point
if ( m_nStepCount < 1 )
return 1;
//See if we should draw
if ( !IsVisible() || ( m_bReadyToDraw == false ) )
return 0;
CEngineSprite *pSprite = Draw_SetSpriteTexture( GetModel(), m_flFrame, GetRenderMode() );
if ( pSprite == NULL )
return 0;
// Specify all the segments.
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
CBeamSegDraw segDraw;
segDraw.Start( pRenderContext, m_nStepCount + 1, pSprite->GetMaterial() );
// Setup the first point, always emanating from the attachment point
TrailPoint_t *pLast = GetTrailPoint( m_nStepCount-1 );
TrailPoint_t currentPoint;
currentPoint.m_flDieTime = gpGlobals->curtime + m_flLifeTime;
ComputeScreenPosition( ¤tPoint.m_vecScreenPos );
currentPoint.m_flTexCoord = pLast->m_flTexCoord + currentPoint.m_vecScreenPos.DistTo(pLast->m_vecScreenPos) * m_flTextureRes;
currentPoint.m_flWidthVariance = 0.0f;
#if SCREEN_SPACE_TRAILS
VMatrix viewMatrix;
materials->GetMatrix( MATERIAL_VIEW, &viewMatrix );
viewMatrix = viewMatrix.InverseTR();
#endif
TrailPoint_t *pPrevPoint = NULL;
float flTailAlphaDist = m_flMinFadeLength;
for ( int i = 0; i <= m_nStepCount; ++i )
{
// This makes it so that we're always drawing to the current location
TrailPoint_t *pPoint = (i != m_nStepCount) ? GetTrailPoint(i) : ¤tPoint;
float flLifePerc = (pPoint->m_flDieTime - gpGlobals->curtime) / m_flLifeTime;
flLifePerc = clamp( flLifePerc, 0.0f, 1.0f );
BeamSeg_t curSeg;
curSeg.m_vColor.x = (float) m_clrRender->r / 255.0f;
curSeg.m_vColor.y = (float) m_clrRender->g / 255.0f;
curSeg.m_vColor.z = (float) m_clrRender->b / 255.0f;
float flAlphaFade = flLifePerc;
if ( flTailAlphaDist > 0.0f )
{
if ( pPrevPoint )
{
float flDist = pPoint->m_vecScreenPos.DistTo( pPrevPoint->m_vecScreenPos );
flTailAlphaDist -= flDist;
}
if ( flTailAlphaDist > 0.0f )
{
float flTailFade = Lerp( (m_flMinFadeLength - flTailAlphaDist) / m_flMinFadeLength, 0.0f, 1.0f );
if ( flTailFade < flAlphaFade )
{
flAlphaFade = flTailFade;
}
}
}
curSeg.m_flAlpha = ( (float) GetRenderBrightness() / 255.0f ) * flAlphaFade;
#if SCREEN_SPACE_TRAILS
curSeg.m_vPos = viewMatrix * pPoint->m_vecScreenPos;
#else
curSeg.m_vPos = pPoint->m_vecScreenPos;
#endif
if ( m_flEndWidth >= 0.0f )
{
curSeg.m_flWidth = Lerp( flLifePerc, m_flEndWidth.Get(), m_flStartWidth.Get() );
}
else
{
curSeg.m_flWidth = m_flStartWidth.Get();
}
curSeg.m_flWidth += pPoint->m_flWidthVariance;
if ( curSeg.m_flWidth < 0.0f )
{
curSeg.m_flWidth = 0.0f;
}
curSeg.m_flTexCoord = pPoint->m_flTexCoord;
segDraw.NextSeg( &curSeg );
// See if we're done with this bad boy
if ( pPoint->m_flDieTime <= gpGlobals->curtime )
{
// Push this back onto the top for use
++m_nFirstStep;
--i;
--m_nStepCount;
}
pPrevPoint = pPoint;
}
segDraw.End();
return 1;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : fTimeDelta -
//-----------------------------------------------------------------------------
void C_ExtinguisherJet::Update( float fTimeDelta )
{
if ( m_bEmit == false )
return;
C_BasePlayer *player = C_BasePlayer::GetLocalPlayer();
if ( m_bUseMuzzlePoint )
{
C_BaseViewModel *vm = player ? player->GetViewModel( 0 ) : NULL;
if ( vm )
{
int iAttachment = vm->LookupAttachment( "muzzle" );
Vector origin;
QAngle angles;
vm->GetAttachment( iAttachment, origin, angles );
Assert( !GetMoveParent() );
SetLocalOrigin( origin );
SetLocalAngles( angles );
}
}
trace_t tr;
Vector shotDir, vRight, vUp;
AngleVectors( GetAbsAngles(), &shotDir, &vRight, &vUp );
//FIXME: Muzzle point is incorrect on the model!
if ( m_bUseMuzzlePoint )
{
shotDir.Negate();
}
Vector endPoint = GetAbsOrigin() + ( shotDir * 150.0f );
UTIL_TraceLine( GetAbsOrigin(), endPoint, MASK_SHOT, NULL, COLLISION_GROUP_NONE, &tr );
bool hitWall = ( tr.fraction < 1.0f );
//Add normal jet
if ( m_pEmitter.IsValid() )
{
SimpleParticle *pParticle;
m_pEmitter->SetSortOrigin( GetAbsOrigin() );
float tempDelta = fTimeDelta;
//FIXME: All particles need to be within this loop
while( m_ParticleSpawn.NextEvent( tempDelta ) )
{
pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle, GetAbsOrigin() );
if ( pParticle )
{
pParticle->m_flDieTime = 0.2f;
pParticle->m_flLifetime = 0.0f;
pParticle->m_flRoll = random->RandomInt( 0, 360 );
pParticle->m_flRollDelta= random->RandomFloat( -4.0f, 4.0f );
pParticle->m_uchStartSize = 1;
pParticle->m_uchEndSize = random->RandomInt( 32, 48 );
pParticle->m_uchStartAlpha = random->RandomInt( 128, 164 );
pParticle->m_uchEndAlpha = 0;
int cScale = random->RandomInt( 192, 255 );
pParticle->m_uchColor[0] = cScale;
pParticle->m_uchColor[1] = cScale;
pParticle->m_uchColor[2] = cScale;
Vector dir;
QAngle ofsAngles;
ofsAngles.Random( -8.0f, 8.0f );
ofsAngles += GetAbsAngles();
AngleVectors( ofsAngles, &dir );
if ( m_bUseMuzzlePoint )
{
dir.Negate();
}
pParticle->m_vecVelocity = dir * random->RandomInt( 400, 800 );
}
//Add muzzle effect
pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle, GetAbsOrigin() );
if ( pParticle )
{
pParticle->m_flDieTime = 0.1f;
pParticle->m_flLifetime = 0.0f;
pParticle->m_flRoll = random->RandomInt( 0, 360 );
pParticle->m_flRollDelta= random->RandomFloat( -4.0f, 4.0f );
pParticle->m_uchStartSize = 1;
pParticle->m_uchEndSize = random->RandomInt( 8, 16 );
pParticle->m_uchStartAlpha = random->RandomInt( 128, 255 );
pParticle->m_uchEndAlpha = 0;
int cScale = random->RandomInt( 192, 255 );
pParticle->m_uchColor[0] = cScale;
pParticle->m_uchColor[1] = cScale;
pParticle->m_uchColor[2] = cScale;
Vector dir;
QAngle ofsAngles;
ofsAngles.Random( -64.0f, 64.0f );
ofsAngles += GetAbsAngles();
AngleVectors( ofsAngles, &dir );
if ( m_bUseMuzzlePoint )
{
dir.Negate();
}
pParticle->m_vecVelocity = dir * random->RandomInt( 32, 64 );
}
//Add a wall effect if needed
if ( hitWall )
{
AddExtinguisherDecal( tr );
Vector offDir;
offDir.Random( -16.0f, 16.0f );
pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle, ( tr.endpos + ( tr.plane.normal * 8.0f ) ) + offDir );
if ( pParticle )
{
pParticle->m_flDieTime = 0.4f;
pParticle->m_flLifetime = 0.0f;
pParticle->m_flRoll = random->RandomInt( 0, 360 );
pParticle->m_flRollDelta= random->RandomFloat( -2.0f, 2.0f );
pParticle->m_uchStartSize = random->RandomInt( 8, 16 );
pParticle->m_uchEndSize = random->RandomInt( 24, 32 );
pParticle->m_uchStartAlpha = random->RandomInt( 64, 128 );
pParticle->m_uchEndAlpha = 0;
int cScale = random->RandomInt( 192, 255 );
pParticle->m_uchColor[0] = cScale;
pParticle->m_uchColor[1] = cScale;
pParticle->m_uchColor[2] = cScale;
Vector rDir;
rDir = tr.plane.normal;
rDir[0] += random->RandomFloat( -0.9f, 0.9f );
rDir[1] += random->RandomFloat( -0.9f, 0.9f );
rDir[2] += random->RandomFloat( -0.9f, 0.9f );
pParticle->m_vecVelocity = rDir * random->RandomInt( 32, 64 );
}
}
//Add small ember-like particles
if ( random->RandomInt( 0, 1 ) == 0 )
{
m_pEmberEmitter->SetSortOrigin( GetAbsOrigin() );
pParticle = (SimpleParticle *) m_pEmberEmitter->AddParticle( sizeof(SimpleParticle), m_pEmberEmitter->GetPMaterial( "particle/particle_smokegrenade" ), GetAbsOrigin() );
assert(pParticle);
if ( pParticle )
{
pParticle->m_flLifetime = 0.0f;
pParticle->m_flDieTime = 1.0f;
pParticle->m_flRoll = 0;
pParticle->m_flRollDelta = 0;
pParticle->m_uchColor[0] = 255;
pParticle->m_uchColor[1] = 255;
pParticle->m_uchColor[2] = 255;
pParticle->m_uchStartAlpha = 255;
pParticle->m_uchEndAlpha = 0;
pParticle->m_uchStartSize = 1;
pParticle->m_uchEndSize = 0;
Vector dir;
QAngle ofsAngles;
ofsAngles.Random( -8.0f, 8.0f );
ofsAngles += GetAbsAngles();
AngleVectors( ofsAngles, &dir );
if ( m_bUseMuzzlePoint )
{
dir.Negate();
}
pParticle->m_vecVelocity = dir * random->RandomInt( 400, 800 );
}
}
}
}
// Inner beam
CBeamSegDraw beamDraw;
CBeamSeg seg;
const int numPoints = 4;
Vector beamPoints[numPoints];
beamPoints[0] = GetAbsOrigin();
// Create our beam points
int i;
for ( i = 0; i < numPoints; i++ )
{
beamPoints[i] = GetAbsOrigin() + ( shotDir * (32*i*i) );
beamPoints[i] += vRight * sin( gpGlobals->curtime * 4.0f ) * (2.0f*i);
beamPoints[i] += vUp * sin( gpGlobals->curtime * 8.0f ) * (1.0f*i);
beamPoints[i] += shotDir * sin( gpGlobals->curtime * (16.0f*i) ) * (1.0f*i);
}
IMaterial *pMat = materials->FindMaterial( "particle/particle_smokegrenade", NULL );
beamDraw.Start( numPoints, pMat );
//Setup and draw those points
for( i = 0; i < numPoints; i++ )
{
float t = (float) i / (numPoints - 1);
float color = 1.0f * (1.0f - t);
seg.m_vColor = Vector( color, color, color );
seg.m_vPos = beamPoints[i];
seg.m_flTexCoord = (float)i/(float)(numPoints-1) - ((gpGlobals->curtime - (int)gpGlobals->curtime) * 4.0f );
seg.m_flWidth = 4.0f + ( (64.0f*t) * (fabs( sin( gpGlobals->curtime * 16.0f ) )) );
seg.m_flAlpha = color;
beamDraw.NextSeg( &seg );
}
beamDraw.End();
}
void AddCoolLine( const Vector &v1, const Vector &v2, unsigned long iExtraFadeOffset, bool bNegateMovementDir )
{
float flLineSectionLength = 3; // How many inches each line travels. Each line is a solid color and alpha.
int nLineSectionsToFade = 2; // How many lines to fade from translucent to opaque.
int baseColor[3] = { 216, 183, 67 }; // gold
float flTimeBetweenUpdates = 0.2f;
unsigned long iLineFadeOffset = iExtraFadeOffset + (int)(gpGlobals->curtime / flTimeBetweenUpdates);
if ( bNegateMovementDir )
iLineFadeOffset = 0xFFFFFFFF - iLineFadeOffset;
Vector vDelta = v2 - v1;
float flLineLen = vDelta.Length();
vDelta /= flLineLen;
int nMaxLines = (int)(flLineLen / flLineSectionLength) + 1;
static IMaterial *pWireframeMaterial = NULL;
if ( !pWireframeMaterial )
pWireframeMaterial = materials->FindMaterial( "debug/debugwireframevertexcolor", TEXTURE_GROUP_OTHER );
static IMaterial *pBeamMaterial = NULL;
if ( !pBeamMaterial )
pBeamMaterial = materials->FindMaterial( "effects/laser1", TEXTURE_GROUP_OTHER );
CMatRenderContextPtr pRenderContext( materials );
// Draw the solid underlying lines.
IMesh* pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, pWireframeMaterial );
CMeshBuilder meshBuilder;
meshBuilder.Begin( pMesh, MATERIAL_LINES, 1 );
meshBuilder.Position3fv( v1.Base() );
meshBuilder.Color4ub( baseColor[0], baseColor[1], baseColor[2], 255 );
meshBuilder.AdvanceVertex();
meshBuilder.Position3fv( v2.Base() );
meshBuilder.Color4ub( baseColor[0], baseColor[1], baseColor[2], 255 );
meshBuilder.AdvanceVertex();
meshBuilder.End( false, true );
// Draw the additive beams.
float flCurDist = 0;
Vector vStartPos = v1;
for ( int i=0; i < nMaxLines; i++ )
{
float flEndDist = MIN( flCurDist + flLineSectionLength, flLineLen );
Vector vEndPos = v1 + vDelta * flEndDist;
int alpha;
int iFadeAmt = (iLineFadeOffset+i) % (nLineSectionsToFade * 2);
if ( iFadeAmt < nLineSectionsToFade )
alpha = (iFadeAmt * 255) / nLineSectionsToFade;
else
alpha = (255 * (nLineSectionsToFade - (iFadeAmt - nLineSectionsToFade))) / nLineSectionsToFade;
float flAlpha = Bias( alpha / 255.0f, 0.6 );
CBeamSegDraw beamDraw;
beamDraw.Start( pRenderContext, 2, pBeamMaterial );
BeamSeg_t beamSeg;
beamSeg.SetColor( baseColor[0] * flAlpha / 255.0f, baseColor[1] * flAlpha / 255.0f, baseColor[2] * flAlpha / 255.0f, 1.0f );
beamSeg.m_flTexCoord = 0;
beamSeg.m_flWidth = 6;
beamSeg.m_vPos = vStartPos;
beamDraw.NextSeg( &beamSeg );
beamSeg.m_vPos = vEndPos;
beamDraw.NextSeg( &beamSeg );
beamDraw.End();
flCurDist = flEndDist;
vStartPos = vEndPos;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : noise_divisions -
// *prgNoise -
// *spritemodel -
// frame -
// rendermode -
// source -
// delta -
// flags -
// *color -
// fadescale -
//-----------------------------------------------------------------------------
void DrawSegs( int noise_divisions, float *prgNoise, const model_t* spritemodel,
float frame, int rendermode, const Vector& source, const Vector& delta,
float startWidth, float endWidth, float scale, float freq, float speed, int segments,
int flags, float* color, float fadeLength, float flHDRColorScale )
{
int i, noiseIndex, noiseStep;
float div, length, fraction, factor, vLast, vStep, brightness;
Assert( fadeLength >= 0.0f );
CEngineSprite *pSprite = Draw_SetSpriteTexture( spritemodel, frame, rendermode );
if ( !pSprite )
return;
if ( segments < 2 )
return;
IMaterial *pMaterial = pSprite->GetMaterial( (RenderMode_t)rendermode );
if( pMaterial )
{
static unsigned int nHDRColorScaleCache = 0;
IMaterialVar *pHDRColorScaleVar = pMaterial->FindVarFast( "$hdrcolorscale", &nHDRColorScaleCache );
if( pHDRColorScaleVar )
{
pHDRColorScaleVar->SetFloatValue( flHDRColorScale );
}
}
length = VectorLength( delta );
float flMaxWidth = MAX(startWidth, endWidth) * 0.5f;
div = 1.0 / (segments-1);
if ( length*div < flMaxWidth * 1.414 )
{
// Here, we have too many segments; we could get overlap... so lets have less segments
segments = (int)(length / (flMaxWidth * 1.414)) + 1;
if ( segments < 2 )
{
segments = 2;
}
}
if ( segments > noise_divisions ) // UNDONE: Allow more segments?
{
segments = noise_divisions;
}
div = 1.0 / (segments-1);
length *= 0.01;
// UNDONE: Expose texture length scale factor to control "fuzziness"
if ( flags & FBEAM_NOTILE )
{
// Don't tile
vStep = div;
}
else
{
// Texture length texels per space pixel
vStep = length*div;
}
// UNDONE: Expose this paramter as well(3.5)? Texture scroll rate along beam
vLast = fmod(freq*speed,1); // Scroll speed 3.5 -- initial texture position, scrolls 3.5/sec (1.0 is entire texture)
if ( flags & FBEAM_SINENOISE )
{
if ( segments < 16 )
{
segments = 16;
div = 1.0 / (segments-1);
}
scale *= 100;
length = segments * (1.0/10);
}
else
{
scale *= length;
}
// Iterator to resample noise waveform (it needs to be generated in powers of 2)
noiseStep = (int)((float)(noise_divisions-1) * div * 65536.0f);
noiseIndex = 0;
if ( flags & FBEAM_SINENOISE )
{
noiseIndex = 0;
}
brightness = 1.0;
if ( flags & FBEAM_SHADEIN )
{
brightness = 0;
}
// What fraction of beam should be faded
Assert( fadeLength >= 0.0f );
float fadeFraction = fadeLength/ delta.Length();
// BUGBUG: This code generates NANs when fadeFraction is zero! REVIST!
fadeFraction = clamp(fadeFraction,1.e-6f,1.f);
// Choose two vectors that are perpendicular to the beam
Vector perp1;
ComputeBeamPerpendicular( delta, &perp1 );
// Specify all the segments.
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
CBeamSegDraw segDraw;
segDraw.Start( pRenderContext, segments, NULL );
for ( i = 0; i < segments; i++ )
{
Assert( noiseIndex < (noise_divisions<<16) );
BeamSeg_t curSeg;
curSeg.m_flAlpha = 1;
fraction = i * div;
// Fade in our out beam to fadeLength
if ( (flags & FBEAM_SHADEIN) && (flags & FBEAM_SHADEOUT) )
{
if (fraction < 0.5)
{
brightness = 2*(fraction/fadeFraction);
}
else
{
brightness = 2*(1.0 - (fraction/fadeFraction));
}
}
else if ( flags & FBEAM_SHADEIN )
{
brightness = fraction/fadeFraction;
}
else if ( flags & FBEAM_SHADEOUT )
{
brightness = 1.0 - (fraction/fadeFraction);
}
// clamps
if (brightness < 0 )
{
brightness = 0;
}
else if (brightness > 1)
{
brightness = 1;
}
VectorScale( *((Vector*)color), brightness, curSeg.m_vColor );
// UNDONE: Make this a spline instead of just a line?
VectorMA( source, fraction, delta, curSeg.m_vPos );
// Distort using noise
if ( scale != 0 )
{
factor = prgNoise[noiseIndex>>16] * scale;
if ( flags & FBEAM_SINENOISE )
{
float s, c;
SinCos( fraction*M_PI*length + freq, &s, &c );
VectorMA( curSeg.m_vPos, factor * s, CurrentViewUp(), curSeg.m_vPos );
// Rotate the noise along the perpendicluar axis a bit to keep the bolt from looking diagonal
VectorMA( curSeg.m_vPos, factor * c, CurrentViewRight(), curSeg.m_vPos );
}
else
{
VectorMA( curSeg.m_vPos, factor, perp1, curSeg.m_vPos );
}
}
// Specify the next segment.
if( endWidth == startWidth )
{
curSeg.m_flWidth = startWidth * 2;
}
else
{
curSeg.m_flWidth = ((fraction*(endWidth-startWidth))+startWidth) * 2;
}
curSeg.m_flTexCoord = vLast;
segDraw.NextSeg( &curSeg );
vLast += vStep; // Advance texture scroll (v axis only)
noiseIndex += noiseStep;
}
