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game/shared/positionwatcher.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef POSITIONWATCHER_H
+#define POSITIONWATCHER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "ehandle.h"
+
+// inherit from this interface to be able to call WatchPositionChanges
+abstract_class IWatcherCallback
+{
+public:
+	virtual ~IWatcherCallback() {}
+};
+
+abstract_class IPositionWatcher : public IWatcherCallback
+{
+public:
+	virtual void NotifyPositionChanged( CBaseEntity *pEntity ) = 0;
+};
+
+// NOTE: The table of watchers is NOT saved/loaded!  Recreate these links on restore
+void ReportPositionChanged( CBaseEntity *pMovedEntity );
+void WatchPositionChanges( CBaseEntity *pWatcher, CBaseEntity *pMovingEntity );
+void RemovePositionWatcher( CBaseEntity *pWatcher, CBaseEntity *pMovingEntity );
+
+
+// inherit from this interface to be able to call WatchPositionChanges
+abstract_class IVPhysicsWatcher : public IWatcherCallback
+{
+public:
+	virtual void NotifyVPhysicsStateChanged( IPhysicsObject *pPhysics, CBaseEntity *pEntity, bool bAwake ) = 0;
+};
+
+// NOTE: The table of watchers is NOT saved/loaded!  Recreate these links on restore
+void ReportVPhysicsStateChanged( IPhysicsObject *pPhysics, CBaseEntity *pEntity, bool bAwake );
+void WatchVPhysicsStateChanges( CBaseEntity *pWatcher, CBaseEntity *pPhysicsEntity );
+void RemoveVPhysicsStateWatcher( CBaseEntity *pWatcher, CBaseEntity *pPhysicsEntity );
+
+
+#endif // POSITIONWATCHER_H