1 files changed, 148 insertions, 0 deletions
diff --git a/game/server/ai_looktarget.cpp b/game/server/ai_looktarget.cpp
new file mode 100644
index 0000000..b10bb7c
--- /dev/null
+++ b/game/server/ai_looktarget.cpp
@@ -0,0 +1,148 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "cbase.h"
+#include "game.h"
+#include "ai_looktarget.h"
+
+// Mothballing this entity to get rid of it. info_hint does its job better (sjb)
+//LINK_ENTITY_TO_CLASS( ai_looktarget, CAI_LookTarget );
+
+BEGIN_DATADESC( CAI_LookTarget )
+
+	// Keyfields
+	DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "StartDisabled" ),
+	DEFINE_KEYFIELD( m_iContext, FIELD_INTEGER, "context" ),
+	DEFINE_KEYFIELD( m_iPriority, FIELD_INTEGER, "priority" ),
+	DEFINE_KEYFIELD( m_flMaxDist, FIELD_FLOAT, "maxdist" ),
+
+	// Fields
+	DEFINE_FIELD( m_flTimeNextAvailable, FIELD_TIME ),
+
+END_DATADESC()
+
+//---------------------------------------------------------
+//---------------------------------------------------------
+int CAI_LookTarget::DrawDebugTextOverlays(void) 
+{
+	int text_offset = BaseClass::DrawDebugTextOverlays();
+
+	if (m_debugOverlays & OVERLAY_BBOX_BIT)
+	{
+		int color = random->RandomInt( 50, 255 );
+		NDebugOverlay::Cross3D( GetAbsOrigin(), 12, color, color, color, false, 0.1 );
+	}
+
+	if (m_debugOverlays & OVERLAY_TEXT_BIT) 
+	{
+		char tempstr[512];
+
+		if( !IsEnabled() )
+		{
+			Q_snprintf(tempstr,sizeof(tempstr),"DISABLED" );
+			EntityText(text_offset,tempstr,0);
+			text_offset++;
+		}
+
+		if( IsEligible( NULL ) )
+		{
+			Q_snprintf(tempstr,sizeof(tempstr),"Eligible" );
+			EntityText(text_offset,tempstr,0);
+			text_offset++;
+		}
+		else
+		{
+			Q_snprintf(tempstr,sizeof(tempstr),"NOT Eligible for selection");
+			EntityText(text_offset,tempstr,0);
+			text_offset++;
+		}
+	}
+	return text_offset;
+}
+
+//---------------------------------------------------------
+//---------------------------------------------------------
+bool CAI_LookTarget::IsEligible( CBaseEntity *pLooker )
+{
+	if( !IsEnabled() )
+		return false;
+
+	if( !IsAvailable() )
+		return false;
+
+	if( pLooker )
+	{
+		float maxdistsqr = m_flMaxDist * m_flMaxDist;
+		
+		Vector vecPos = GetAbsOrigin();
+
+		if( vecPos.DistToSqr( pLooker->WorldSpaceCenter() ) > maxdistsqr )
+		{
+			return false;
+		}
+	}
+
+	return true;
+}
+
+//---------------------------------------------------------
+// Someone's reserving this entity because they're going 
+// to attempt to look at it for flDuration seconds. We'll
+// make it unavailable to anyone else for that time.
+//---------------------------------------------------------
+void CAI_LookTarget::Reserve( float flDuration )
+{
+	m_flTimeNextAvailable = gpGlobals->curtime + flDuration;
+
+	if( HasSpawnFlags( SF_LOOKTARGET_ONLYONCE ) )
+	{
+		// No one will look at this again.
+		Disable();
+	}
+}
+
+//---------------------------------------------------------
+//---------------------------------------------------------
+CAI_LookTarget *CAI_LookTarget::GetFirstLookTarget()
+{
+	CBaseEntity		*pEnt;
+
+	string_t iszLookTarget = FindPooledString( "ai_looktarget" );
+	if( iszLookTarget == NULL_STRING )
+	{
+		return NULL;
+	}
+
+	pEnt = gEntList.FirstEnt();
+	while( pEnt && pEnt->m_iClassname != iszLookTarget )
+	{
+		pEnt = gEntList.NextEnt( pEnt );
+	}
+
+	return (CAI_LookTarget*)pEnt;
+}
+
+//---------------------------------------------------------
+//---------------------------------------------------------
+CAI_LookTarget *CAI_LookTarget::GetNextLookTarget( CAI_LookTarget *pCurrentTarget )
+{
+	CBaseEntity		*pEnt;
+
+	string_t iszLookTarget = FindPooledString( "ai_looktarget" );
+	if( iszLookTarget == NULL_STRING )
+	{
+		return NULL;
+	}
+
+	pEnt = gEntList.NextEnt( pCurrentTarget );
+	while( pEnt && pEnt->m_iClassname != iszLookTarget )
+	{
+		pEnt = gEntList.NextEnt( pEnt );
+	}
+
+	return (CAI_LookTarget*)pEnt;
+}