Added original SDK code for Alien Swarm.

game/client/playerandobjectenumerator.cpp

@@ -0,0 +1,80 @@
+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "playerandobjectenumerator.h"
+#include "c_ai_basenpc.h"
+
+
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// Enumator class for ragdolls being affected by explosive forces
+CPlayerAndObjectEnumerator::CPlayerAndObjectEnumerator( float radius )
+{
+	m_flRadiusSquared		= radius * radius;
+	m_Objects.RemoveAll();
+	m_pLocal = C_BasePlayer::GetLocalPlayer();
+}
+
+int	CPlayerAndObjectEnumerator::GetObjectCount()
+{
+	return m_Objects.Count();
+}
+
+C_BaseEntity *CPlayerAndObjectEnumerator::GetObject( int index )
+{
+	if ( index < 0 || index >= GetObjectCount() )
+		return NULL;
+
+	return m_Objects[ index ];
+}
+
+// Actual work code
+IterationRetval_t CPlayerAndObjectEnumerator::EnumElement( IHandleEntity *pHandleEntity )
+{
+	if ( !m_pLocal )
+		return ITERATION_STOP;
+
+	C_BaseEntity *pEnt = ClientEntityList().GetBaseEntityFromHandle( pHandleEntity->GetRefEHandle() );
+	if ( pEnt == NULL )
+		return ITERATION_CONTINUE;
+
+	if ( pEnt == m_pLocal )
+		return ITERATION_CONTINUE;
+
+	if ( !pEnt->IsPlayer() &&
+		 !pEnt->IsNPC() )
+	{
+		return ITERATION_CONTINUE;
+	}
+
+	if ( pEnt->IsNPC() )
+	{
+		C_AI_BaseNPC *pNPC = (C_AI_BaseNPC *)pEnt;
+
+		if ( !pNPC->ShouldAvoidObstacle() )
+			 return ITERATION_CONTINUE;
+	}
+
+	// Ignore vehicles, since they have vcollide collisions that's push me away
+	if ( pEnt->GetCollisionGroup() == COLLISION_GROUP_VEHICLE )
+		return ITERATION_CONTINUE;
+
+
+
+	Vector	deltaPos = pEnt->GetAbsOrigin() - m_pLocal->GetAbsOrigin();
+	if ( deltaPos.LengthSqr() > m_flRadiusSquared )
+		return ITERATION_CONTINUE;
+
+	CHandle< C_BaseEntity > h;
+	h = pEnt;
+	m_Objects.AddToTail( h );
+
+	return ITERATION_CONTINUE;
+}