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game/server/tf/nav_mesh/tf_path_follower.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+// tf_path_follower.h
+// Simplified path following for TF2
+// Author: Michael Booth, November 2010
+
+#ifndef TF_PATH_FOLLOWER_H
+#define TF_PATH_FOLLOWER_H
+
+#include "nav_mesh.h"
+#include "nav_pathfind.h"
+#include "Path/NextBotPathFollow.h"
+
+class INextBot;
+class ILocomotion;
+
+
+//--------------------------------------------------------------------------------------------------------
+/**
+ * This is a simplified path follower that doesn't care about ladders, climbing, hindrances, etc.
+ */
+class CTFPathFollower : public PathFollower
+{
+public:
+	CTFPathFollower( void );
+	virtual ~CTFPathFollower();
+
+	virtual void Invalidate( void );										// (EXTEND) cause the path to become invalid
+	virtual void OnPathChanged( INextBot *bot, Path::ResultType result );	// invoked when the path is (re)computed (path is valid at the time of this call)
+
+	virtual void Update( INextBot *bot );									// move bot along path
+
+	virtual const Path::Segment *GetCurrentGoal( void ) const;				// return current goal along the path we are trying to reach
+
+	virtual void SetMinLookAheadDistance( float value );					// minimum range movement goal must be along path
+	
+private:
+	const Path::Segment *m_goal;					// our current goal along the path
+	float m_minLookAheadRange;
+
+// 	bool CheckProgress( INextBot *bot );
+// 	bool IsAtGoal( INextBot *bot ) const;			// return true if reached current path goal
+};
+
+
+inline const Path::Segment *CTFPathFollower::GetCurrentGoal( void ) const
+{
+	return m_goal;
+}
+
+
+inline void CTFPathFollower::SetMinLookAheadDistance( float value )
+{
+	m_minLookAheadRange = value;
+}
+
+#endif // TF_PATH_FOLLOWER_H
+
+