//-----------------------------------------------------------------------------
// Purpose: Used to confirm a pointer is a pointer to an entity, useful for
// asserts.
//-----------------------------------------------------------------------------
bool CGlobalEntityList::IsEntityPtr( void *pTest )
{
if ( pTest )
{
const CEntInfo *pInfo = FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
if ( pTest == (void *)pInfo->m_pEntity )
return true;
}
}
return false;
}
//-----------------------------------------------------------------------------
// Purpose: Find the nearest entity along the facing direction from the given origin
// within the angular threshold (ignores worldspawn) with the
// given classname.
// Input : origin -
// facing -
// threshold -
// classname -
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityClassNearestFacing( const Vector &origin, const Vector &facing, float threshold, char *classname)
{
float bestDot = threshold;
CBaseEntity *best_ent = NULL;
const CEntInfo *pInfo = FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *ent = (CBaseEntity *)pInfo->m_pEntity;
if ( !ent )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
// FIXME: why is this skipping pointsize entities?
if (ent->IsPointSized() )
continue;
// Make vector to entity
Vector to_ent = (ent->GetAbsOrigin() - origin);
VectorNormalize( to_ent );
float dot = DotProduct (facing , to_ent );
if (dot > bestDot)
{
if (FClassnameIs(ent,classname))
{
// Ignore if worldspawn
if (!FClassnameIs( ent, "worldspawn" ) && !FClassnameIs( ent, "soundent"))
{
bestDot = dot;
best_ent = ent;
}
}
}
}
return best_ent;
}
//-----------------------------------------------------------------------------
// Purpose: Find the nearest entity along the facing direction from the given origin
// within the angular threshold (ignores worldspawn)
// Input : origin -
// facing -
// threshold -
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityNearestFacing( const Vector &origin, const Vector &facing, float threshold)
{
float bestDot = threshold;
CBaseEntity *best_ent = NULL;
const CEntInfo *pInfo = FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *ent = (CBaseEntity *)pInfo->m_pEntity;
if ( !ent )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
// Ignore logical entities
if (!ent->edict())
continue;
// Make vector to entity
Vector to_ent = ent->WorldSpaceCenter() - origin;
VectorNormalize(to_ent);
float dot = DotProduct( facing, to_ent );
if (dot <= bestDot)
continue;
// Ignore if worldspawn
if (!FStrEq( STRING(ent->m_iClassname), "worldspawn") && !FStrEq( STRING(ent->m_iClassname), "soundent"))
{
bestDot = dot;
best_ent = ent;
}
}
return best_ent;
}
//-----------------------------------------------------------------------------
// Purpose: Used to iterate all the entities within a sphere.
// Input : pStartEntity -
// vecCenter -
// flRadius -
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityInSphere( CBaseEntity *pStartEntity, const Vector &vecCenter, float flRadius )
{
const CEntInfo *pInfo = pStartEntity ? GetEntInfoPtr( pStartEntity->GetRefEHandle() )->m_pNext : FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *ent = (CBaseEntity *)pInfo->m_pEntity;
if ( !ent )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
if ( !ent->edict() )
continue;
Vector vecRelativeCenter;
ent->CollisionProp()->WorldToCollisionSpace( vecCenter, &vecRelativeCenter );
if ( !IsBoxIntersectingSphere( ent->CollisionProp()->OBBMins(), ent->CollisionProp()->OBBMaxs(), vecRelativeCenter, flRadius ) )
continue;
return ent;
}
// nothing found
return NULL;
}
//-----------------------------------------------------------------------------
// Purpose: Iterates the entities with a given target.
// Input : pStartEntity -
// szName -
//-----------------------------------------------------------------------------
// FIXME: obsolete, remove
CBaseEntity *CGlobalEntityList::FindEntityByTarget( CBaseEntity *pStartEntity, const char *szName )
{
const CEntInfo *pInfo = pStartEntity ? GetEntInfoPtr( pStartEntity->GetRefEHandle() )->m_pNext : FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *ent = (CBaseEntity *)pInfo->m_pEntity;
if ( !ent )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
if ( !ent->m_target )
continue;
if ( FStrEq( STRING(ent->m_target), szName ) )
return ent;
}
return NULL;
}
//-----------------------------------------------------------------------------
// Purpose: Iterates the entities with a given name.
// Input : pStartEntity - Last entity found, NULL to start a new iteration.
// szName - Name to search for.
// pActivator - Activator entity if this was called from an input
// handler or Use handler.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByName( CBaseEntity *pStartEntity, const char *szName, CBaseEntity *pSearchingEntity, CBaseEntity *pActivator, CBaseEntity *pCaller, IEntityFindFilter *pFilter )
{
if ( !szName || szName[0] == 0 )
return NULL;
if ( szName[0] == '!' )
{
//
// Avoid an infinite loop, only find one match per procedural search!
//
if (pStartEntity == NULL)
return FindEntityProcedural( szName, pSearchingEntity, pActivator, pCaller );
return NULL;
}
const CEntInfo *pInfo = pStartEntity ? GetEntInfoPtr( pStartEntity->GetRefEHandle() )->m_pNext : FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *ent = (CBaseEntity *)pInfo->m_pEntity;
if ( !ent )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
if ( !ent->m_iName )
continue;
if ( ent->NameMatches( szName ) )
{
if ( pFilter && !pFilter->ShouldFindEntity(ent) )
continue;
return ent;
}
}
return NULL;
}
//-----------------------------------------------------------------------------
// Purpose: Iterates the entities with a given classname.
// Input : pStartEntity - Last entity found, NULL to start a new iteration.
// szName - Classname to search for.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByClassname( CBaseEntity *pStartEntity, const char *szName )
{
const CEntInfo *pInfo = pStartEntity ? GetEntInfoPtr( pStartEntity->GetRefEHandle() )->m_pNext : FirstEntInfo();
for ( ;pInfo; pInfo = pInfo->m_pNext )
{
CBaseEntity *pEntity = (CBaseEntity *)pInfo->m_pEntity;
if ( !pEntity )
{
DevWarning( "NULL entity in global entity list!\n" );
continue;
}
if ( pEntity->ClassMatches(szName) )
return pEntity;
}
return NULL;
}
