//-----------------------------------------------------------------------------
// Purpose: Finds the first entity within radius distance by class name.
// Input : pStartEntity - The entity to start from when doing the search.
// szName - Entity class name, ie "info_target".
// vecSrc - Center of search radius.
// flRadius - Search radius for classname search, 0 to search everywhere.
// Output : Returns a pointer to the found entity, NULL if none.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByClassnameWithin( CBaseEntity *pStartEntity, const char *szName, const Vector &vecSrc, float flRadius )
{
//
// Check for matching class names within the search radius.
//
CBaseEntity *pEntity = pStartEntity;
float flMaxDist2 = flRadius * flRadius;
if (flMaxDist2 == 0)
{
return gEntList.FindEntityByClassname( pEntity, szName );
}
while ((pEntity = gEntList.FindEntityByClassname( pEntity, szName )) != NULL)
{
if ( !pEntity->edict() )
continue;
float flDist2 = (pEntity->GetAbsOrigin() - vecSrc).LengthSqr();
if (flMaxDist2 > flDist2)
{
return pEntity;
}
}
return NULL;
}
//-----------------------------------------------------------------------------
// Purpose: Finds the nearest entity by class name withing given search radius.
// Input : szName - Entity name to search for. Treated as a target name first,
// then as an entity class name, ie "info_target".
// vecSrc - Center of search radius.
// flRadius - Search radius for classname search, 0 to search everywhere.
// Output : Returns a pointer to the found entity, NULL if none.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByClassnameNearest( const char *szName, const Vector &vecSrc, float flRadius )
{
CBaseEntity *pEntity = NULL;
//
// Check for matching class names within the search radius.
//
float flMaxDist2 = flRadius * flRadius;
if (flMaxDist2 == 0)
{
flMaxDist2 = MAX_TRACE_LENGTH * MAX_TRACE_LENGTH;
}
CBaseEntity *pSearch = NULL;
while ((pSearch = gEntList.FindEntityByClassname( pSearch, szName )) != NULL)
{
if ( !pSearch->edict() )
continue;
float flDist2 = (pSearch->GetAbsOrigin() - vecSrc).LengthSqr();
if (flMaxDist2 > flDist2)
{
pEntity = pSearch;
flMaxDist2 = flDist2;
}
}
return pEntity;
}
//-----------------------------------------------------------------------------
// Purpose: Finds an entity by target name or class name.
// Input : pStartEntity - The entity to start from when doing the search.
// szName - Entity name to search for. Treated as a target name first,
// then as an entity class name, ie "info_target".
// vecSrc - Center of search radius.
// flRadius - Search radius for classname search, 0 to search everywhere.
// pSearchingEntity - The entity that is doing the search.
// pActivator - The activator entity if this was called from an input
// or Use handler, NULL otherwise.
// Output : Returns a pointer to the found entity, NULL if none.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityGeneric( CBaseEntity *pStartEntity, const char *szName, CBaseEntity *pSearchingEntity, CBaseEntity *pActivator, CBaseEntity *pCaller )
{
CBaseEntity *pEntity = NULL;
pEntity = gEntList.FindEntityByName( pStartEntity, szName, pSearchingEntity, pActivator, pCaller );
if (!pEntity)
{
pEntity = gEntList.FindEntityByClassname( pStartEntity, szName );
}
return pEntity;
}
//-----------------------------------------------------------------------------
// Purpose: Finds the first entity within radius distance by class name.
// Input : pStartEntity - The entity to start from when doing the search.
// szName - Entity class name, ie "info_target".
// vecSrc - Center of search radius.
// flRadius - Search radius for classname search, 0 to search everywhere.
// Output : Returns a pointer to the found entity, NULL if none.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByClassnameWithin( CBaseEntity *pStartEntity, const char *szName, const Vector &vecSrc, float flRadius, int brushPrecision )
{
//
// Check for matching class names within the search radius.
//
CBaseEntity *pEntity = pStartEntity;
float flMaxDist2 = flRadius * flRadius;
if (flMaxDist2 == 0)
{
return gEntList.FindEntityByClassname( pEntity, szName );
}
while ((pEntity = gEntList.FindEntityByClassname( pEntity, szName )) != NULL)
{
if ( !pEntity->edict() )
continue;
Vector origin;
if ( pEntity->IsBSPModel() && pEntity->CollisionProp())
{
if ( brushPrecision == BRUSHPRECISION_NEAREST )
pEntity->CollisionProp()->CalcNearestPoint(vecSrc,&origin);
else
origin = pEntity->CollisionProp()->GetCollisionOrigin();
}
else
origin = pEntity->GetAbsOrigin();
float flDist2 = (origin - vecSrc).LengthSqr();
if (flMaxDist2 > flDist2)
{
return pEntity;
}
}
return NULL;
}
//-----------------------------------------------------------------------------
// Purpose: Finds the first entity within an extent by class name.
// Input : pStartEntity - The entity to start from when doing the search.
// szName - Entity class name, ie "info_target".
// vecMins - Search mins.
// vecMaxs - Search maxs.
// Output : Returns a pointer to the found entity, NULL if none.
//-----------------------------------------------------------------------------
CBaseEntity *CGlobalEntityList::FindEntityByClassnameWithin( CBaseEntity *pStartEntity, const char *szName, const Vector &vecMins, const Vector &vecMaxs )
{
//
// Check for matching class names within the search radius.
//
CBaseEntity *pEntity = pStartEntity;
while ((pEntity = gEntList.FindEntityByClassname( pEntity, szName )) != NULL)
{
if ( !pEntity->edict() && !pEntity->IsEFlagSet( EFL_SERVER_ONLY ) )
continue;
// check if the aabb intersects the search aabb.
Vector entMins, entMaxs;
pEntity->CollisionProp()->WorldSpaceAABB( &entMins, &entMaxs );
if ( IsBoxIntersectingBox( vecMins, vecMaxs, entMins, entMaxs ) )
{
return pEntity;
}
}
return NULL;
}