source-engine/game/client/fx_impact.cpp

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2020-04-22 16:56:21 +00:00
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//===========================================================================//
#include "cbase.h"
#include "decals.h"
#include "materialsystem/imaterialvar.h"
#include "IEffects.h"
#include "fx.h"
#include "fx_impact.h"
#include "view.h"
#ifdef TF_CLIENT_DLL
#include "cdll_util.h"
#include "tf_gamerules.h"
#endif
#include "engine/IStaticPropMgr.h"
#include "c_impact_effects.h"
#include "tier0/vprof.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
static ConVar r_drawflecks( "r_drawflecks", "1", FCVAR_ALLOWED_IN_COMPETITIVE );
extern ConVar r_drawmodeldecals;
ImpactSoundRouteFn g_pImpactSoundRouteFn = NULL;
//==========================================================================================================================
// RAGDOLL ENUMERATOR
//==========================================================================================================================
CRagdollEnumerator::CRagdollEnumerator( Ray_t& shot, int iDamageType )
{
m_rayShot = shot;
m_iDamageType = iDamageType;
m_bHit = false;
}
IterationRetval_t CRagdollEnumerator::EnumElement( IHandleEntity *pHandleEntity )
{
C_BaseEntity *pEnt = ClientEntityList().GetBaseEntityFromHandle( pHandleEntity->GetRefEHandle() );
if ( pEnt == NULL )
return ITERATION_CONTINUE;
C_BaseAnimating *pModel = static_cast< C_BaseAnimating * >( pEnt );
// If the ragdoll was created on this tick, then the forces were already applied on the server
if ( pModel == NULL || WasRagdollCreatedOnCurrentTick( pEnt ) )
return ITERATION_CONTINUE;
IPhysicsObject *pPhysicsObject = pModel->VPhysicsGetObject();
if ( pPhysicsObject == NULL )
return ITERATION_CONTINUE;
trace_t tr;
enginetrace->ClipRayToEntity( m_rayShot, MASK_SHOT, pModel, &tr );
if ( tr.fraction < 1.0 )
{
pModel->ImpactTrace( &tr, m_iDamageType, NULL );
m_bHit = true;
//FIXME: Yes? No?
return ITERATION_STOP;
}
return ITERATION_CONTINUE;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
bool FX_AffectRagdolls( Vector vecOrigin, Vector vecStart, int iDamageType )
{
// don't do this when lots of ragdolls are simulating
if ( s_RagdollLRU.CountRagdolls(true) > 1 )
return false;
Ray_t shotRay;
shotRay.Init( vecStart, vecOrigin );
CRagdollEnumerator ragdollEnum( shotRay, iDamageType );
::partition->EnumerateElementsAlongRay( PARTITION_CLIENT_RESPONSIVE_EDICTS, shotRay, false, &ragdollEnum );
return ragdollEnum.Hit();
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : &data -
//-----------------------------------------------------------------------------
void RagdollImpactCallback( const CEffectData &data )
{
FX_AffectRagdolls( data.m_vOrigin, data.m_vStart, data.m_nDamageType );
}
DECLARE_CLIENT_EFFECT( "RagdollImpact", RagdollImpactCallback );
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
bool Impact( Vector &vecOrigin, Vector &vecStart, int iMaterial, int iDamageType, int iHitbox, C_BaseEntity *pEntity, trace_t &tr, int nFlags, int maxLODToDecal )
{
VPROF( "Impact" );
Assert ( pEntity );
// Clear out the trace
memset( &tr, 0, sizeof(trace_t));
tr.fraction = 1.0f;
// Setup our shot information
Vector shotDir = vecOrigin - vecStart;
float flLength = VectorNormalize( shotDir );
Vector traceExt;
VectorMA( vecStart, flLength + 8.0f, shotDir, traceExt );
// Attempt to hit ragdolls
bool bHitRagdoll = false;
if ( !pEntity->IsClientCreated() )
{
bHitRagdoll = FX_AffectRagdolls( vecOrigin, vecStart, iDamageType );
}
if ( (nFlags & IMPACT_NODECAL) == 0 )
{
const char *pchDecalName = GetImpactDecal( pEntity, iMaterial, iDamageType );
int decalNumber = decalsystem->GetDecalIndexForName( pchDecalName );
if ( decalNumber == -1 )
return false;
bool bSkipDecal = false;
#ifdef TF_CLIENT_DLL
// Don't show blood decals if we're filtering them out (Pyro Goggles)
if ( IsLocalPlayerUsingVisionFilterFlags( TF_VISION_FILTER_PYRO ) || UTIL_IsLowViolence() || ( TFGameRules() && TFGameRules()->IsTruceActive() ) )
{
if ( V_strstr( pchDecalName, "Flesh" ) )
{
bSkipDecal = true;
}
}
#endif
if ( !bSkipDecal )
{
if ( (pEntity->entindex() == 0) && (iHitbox != 0) )
{
staticpropmgr->AddDecalToStaticProp( vecStart, traceExt, iHitbox - 1, decalNumber, true, tr );
}
else if ( pEntity )
{
// Here we deal with decals on entities.
pEntity->AddDecal( vecStart, traceExt, vecOrigin, iHitbox, decalNumber, true, tr, maxLODToDecal );
}
}
}
else
{
// Perform the trace ourselves
Ray_t ray;
ray.Init( vecStart, traceExt );
if ( (pEntity->entindex() == 0) && (iHitbox != 0) )
{
// Special case for world entity with hitbox (that's a static prop)
ICollideable *pCollideable = staticpropmgr->GetStaticPropByIndex( iHitbox - 1 );
enginetrace->ClipRayToCollideable( ray, MASK_SHOT, pCollideable, &tr );
}
else
{
if ( !pEntity )
return false;
enginetrace->ClipRayToEntity( ray, MASK_SHOT, pEntity, &tr );
}
}
// If we found the surface, emit debris flecks
bool bReportRagdollImpacts = (nFlags & IMPACT_REPORT_RAGDOLL_IMPACTS) != 0;
if ( ( tr.fraction == 1.0f ) || ( bHitRagdoll && !bReportRagdollImpacts ) )
return false;
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
char const *GetImpactDecal( C_BaseEntity *pEntity, int iMaterial, int iDamageType )
{
char const *decalName;
if ( !pEntity )
{
decalName = "Impact.Concrete";
}
else
{
decalName = pEntity->DamageDecal( iDamageType, iMaterial );
}
// See if we need to offset the decal for material type
return decalsystem->TranslateDecalForGameMaterial( decalName, iMaterial );
}
//-----------------------------------------------------------------------------
// Purpose: Perform custom effects based on the Decal index
//-----------------------------------------------------------------------------
static ConVar cl_new_impact_effects( "cl_new_impact_effects", "0" );
struct ImpactEffect_t
{
const char *m_pName;
const char *m_pNameNoFlecks;
};
static ImpactEffect_t s_pImpactEffect[26] =
{
{ "impact_antlion", NULL }, // CHAR_TEX_ANTLION
{ NULL, NULL }, // CHAR_TEX_BLOODYFLESH
{ "impact_concrete", "impact_concrete_noflecks" }, // CHAR_TEX_CONCRETE
{ "impact_dirt", NULL }, // CHAR_TEX_DIRT
{ NULL, NULL }, // CHAR_TEX_EGGSHELL
{ NULL, NULL }, // CHAR_TEX_FLESH
{ NULL, NULL }, // CHAR_TEX_GRATE
{ NULL, NULL }, // CHAR_TEX_ALIENFLESH
{ NULL, NULL }, // CHAR_TEX_CLIP
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ NULL, NULL }, // CHAR_TEX_PLASTIC
{ "impact_metal", NULL }, // CHAR_TEX_METAL
{ "impact_dirt", NULL }, // CHAR_TEX_SAND
{ NULL, NULL }, // CHAR_TEX_FOLIAGE
{ "impact_computer", NULL }, // CHAR_TEX_COMPUTER
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ NULL, NULL }, // CHAR_TEX_SLOSH
{ "impact_concrete", "impact_concrete_noflecks" }, // CHAR_TEX_TILE
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ "impact_metal", NULL }, // CHAR_TEX_VENT
{ "impact_wood", "impact_wood_noflecks" }, // CHAR_TEX_WOOD
{ NULL, NULL }, // CHAR_TEX_UNUSED
{ "impact_glass", NULL }, // CHAR_TEX_GLASS
{ "warp_shield_impact", NULL }, // CHAR_TEX_WARPSHIELD
};
static void SetImpactControlPoint( CNewParticleEffect *pEffect, int nPoint, const Vector &vecImpactPoint, const Vector &vecForward, C_BaseEntity *pEntity )
{
Vector vecImpactY, vecImpactZ;
VectorVectors( vecForward, vecImpactY, vecImpactZ );
vecImpactY *= -1.0f;
pEffect->SetControlPoint( nPoint, vecImpactPoint );
pEffect->SetControlPointOrientation( nPoint, vecForward, vecImpactY, vecImpactZ );
pEffect->SetControlPointEntity( nPoint, pEntity );
}
static void PerformNewCustomEffects( const Vector &vecOrigin, trace_t &tr, const Vector &shotDir, int iMaterial, int iScale, int nFlags )
{
bool bNoFlecks = !r_drawflecks.GetBool();
if ( !bNoFlecks )
{
bNoFlecks = ( ( nFlags & FLAGS_CUSTIOM_EFFECTS_NOFLECKS ) != 0 );
}
// Compute the impact effect name
const ImpactEffect_t &effect = s_pImpactEffect[ iMaterial - 'A' ];
const char *pImpactName = effect.m_pName;
if ( bNoFlecks && effect.m_pNameNoFlecks )
{
pImpactName = effect.m_pNameNoFlecks;
}
if ( !pImpactName )
return;
CSmartPtr<CNewParticleEffect> pEffect = CNewParticleEffect::Create( NULL, pImpactName );
if ( !pEffect->IsValid() )
return;
Vector vecReflect;
float flDot = DotProduct( shotDir, tr.plane.normal );
VectorMA( shotDir, -2.0f * flDot, tr.plane.normal, vecReflect );
Vector vecShotBackward;
VectorMultiply( shotDir, -1.0f, vecShotBackward );
Vector vecImpactPoint = ( tr.fraction != 1.0f ) ? tr.endpos : vecOrigin;
Assert( VectorsAreEqual( vecOrigin, tr.endpos, 1e-1 ) );
SetImpactControlPoint( pEffect.GetObject(), 0, vecImpactPoint, tr.plane.normal, tr.m_pEnt );
SetImpactControlPoint( pEffect.GetObject(), 1, vecImpactPoint, vecReflect, tr.m_pEnt );
SetImpactControlPoint( pEffect.GetObject(), 2, vecImpactPoint, vecShotBackward, tr.m_pEnt );
pEffect->SetControlPoint( 3, Vector( iScale, iScale, iScale ) );
if ( pEffect->m_pDef->ReadsControlPoint( 4 ) )
{
Vector vecColor;
GetColorForSurface( &tr, &vecColor );
pEffect->SetControlPoint( 4, vecColor );
}
}
void PerformCustomEffects( const Vector &vecOrigin, trace_t &tr, const Vector &shotDir, int iMaterial, int iScale, int nFlags )
{
// Throw out the effect if any of these are true
if ( tr.surface.flags & (SURF_SKY|SURF_NODRAW|SURF_HINT|SURF_SKIP) )
return;
if ( cl_new_impact_effects.GetInt() )
{
PerformNewCustomEffects( vecOrigin, tr, shotDir, iMaterial, iScale, nFlags );
return;
}
bool bNoFlecks = !r_drawflecks.GetBool();
if ( !bNoFlecks )
{
bNoFlecks = ( ( nFlags & FLAGS_CUSTIOM_EFFECTS_NOFLECKS ) != 0 );
}
// Cement and wood have dust and flecks
if ( ( iMaterial == CHAR_TEX_CONCRETE ) || ( iMaterial == CHAR_TEX_TILE ) )
{
FX_DebrisFlecks( vecOrigin, &tr, iMaterial, iScale, bNoFlecks );
}
else if ( iMaterial == CHAR_TEX_WOOD )
{
FX_DebrisFlecks( vecOrigin, &tr, iMaterial, iScale, bNoFlecks );
}
else if ( ( iMaterial == CHAR_TEX_DIRT ) || ( iMaterial == CHAR_TEX_SAND ) )
{
FX_DustImpact( vecOrigin, &tr, iScale );
}
else if ( iMaterial == CHAR_TEX_ANTLION )
{
FX_AntlionImpact( vecOrigin, &tr );
}
else if ( ( iMaterial == CHAR_TEX_METAL ) || ( iMaterial == CHAR_TEX_VENT ) )
{
Vector reflect;
float dot = shotDir.Dot( tr.plane.normal );
reflect = shotDir + ( tr.plane.normal * ( dot*-2.0f ) );
reflect[0] += random->RandomFloat( -0.2f, 0.2f );
reflect[1] += random->RandomFloat( -0.2f, 0.2f );
reflect[2] += random->RandomFloat( -0.2f, 0.2f );
FX_MetalSpark( vecOrigin, reflect, tr.plane.normal, iScale );
}
else if ( iMaterial == CHAR_TEX_COMPUTER )
{
Vector offset = vecOrigin + ( tr.plane.normal * 1.0f );
g_pEffects->Sparks( offset );
}
else if ( iMaterial == CHAR_TEX_WARPSHIELD )
{
QAngle vecAngles;
VectorAngles( -shotDir, vecAngles );
DispatchParticleEffect( "warp_shield_impact", vecOrigin, vecAngles );
}
}
//-----------------------------------------------------------------------------
// Purpose: Play a sound for an impact. If tr contains a valid hit, use that.
// If not, use the passed in origin & surface.
//-----------------------------------------------------------------------------
void PlayImpactSound( CBaseEntity *pEntity, trace_t &tr, Vector &vecServerOrigin, int nServerSurfaceProp )
{
VPROF( "PlayImpactSound" );
surfacedata_t *pdata;
Vector vecOrigin;
// If the client-side trace hit a different entity than the server, or
// the server didn't specify a surfaceprop, then use the client-side trace
// material if it's valid.
if ( tr.DidHit() && (pEntity != tr.m_pEnt || nServerSurfaceProp == 0) )
{
nServerSurfaceProp = tr.surface.surfaceProps;
}
pdata = physprops->GetSurfaceData( nServerSurfaceProp );
if ( tr.fraction < 1.0 )
{
vecOrigin = tr.endpos;
}
else
{
vecOrigin = vecServerOrigin;
}
// Now play the esound
if ( pdata->sounds.bulletImpact )
{
const char *pbulletImpactSoundName = physprops->GetString( pdata->sounds.bulletImpact );
if ( g_pImpactSoundRouteFn )
{
g_pImpactSoundRouteFn( pbulletImpactSoundName, vecOrigin );
}
else
{
CLocalPlayerFilter filter;
C_BaseEntity::EmitSound( filter, NULL, pbulletImpactSoundName, pdata->soundhandles.bulletImpact, &vecOrigin );
}
return;
}
#ifdef _DEBUG
Msg("***ERROR: PlayImpactSound() on a surface with 0 bulletImpactCount!\n");
#endif //_DEBUG
}
void SetImpactSoundRoute( ImpactSoundRouteFn fn )
{
g_pImpactSoundRouteFn = fn;
}
//-----------------------------------------------------------------------------
// Purpose: Pull the impact data out
// Input : &data -
// *vecOrigin -
// *vecAngles -
// *iMaterial -
// *iDamageType -
// *iHitbox -
// *iEntIndex -
//-----------------------------------------------------------------------------
C_BaseEntity *ParseImpactData( const CEffectData &data, Vector *vecOrigin, Vector *vecStart,
Vector *vecShotDir, short &nSurfaceProp, int &iMaterial, int &iDamageType, int &iHitbox )
{
C_BaseEntity *pEntity = data.GetEntity( );
*vecOrigin = data.m_vOrigin;
*vecStart = data.m_vStart;
nSurfaceProp = data.m_nSurfaceProp;
iDamageType = data.m_nDamageType;
iHitbox = data.m_nHitBox;
*vecShotDir = (*vecOrigin - *vecStart);
VectorNormalize( *vecShotDir );
// Get the material from the surfaceprop
surfacedata_t *psurfaceData = physprops->GetSurfaceData( data.m_nSurfaceProp );
iMaterial = psurfaceData->game.material;
return pEntity;
}