fawkes::AStarState Class Reference

This is the abstract(!) class for an A* State. More...

#include <utils/search/astar_state.h>

List of all members.

Public Member Functions
	AStarState ()
	Constructor.
virtual	~AStarState ()
	Destructor.
virtual long	calculateKey ()=0
	Generates a unique key for this state.
virtual double	estimate ()=0
	Estimate the heuristic cost to the goal.
virtual bool	isGoal ()=0
	Check, wether we reached a goal or not.
virtual std::vector< AStarState * >	generateChildren ()=0
	Generate all successors and put them to this vector.
Public Attributes
AStarState *	father
	Predecessor.
double	pastCost
	Past cost.
double	totalEstimatedCost
	Total estimated cost.
long	key
	The unique key of this state.

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Detailed Description

This is the abstract(!) class for an A* State.

Author:

Stefan Jacobs

Definition at line 36 of file astar_state.h.

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Constructor & Destructor Documentation

fawkes::AStarState::AStarState

(

)

[inline]

Constructor.

Definition at line 41 of file astar_state.h.

virtual fawkes::AStarState::~AStarState

(

)

[inline, virtual]

Destructor.

Definition at line 44 of file astar_state.h.

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Member Function Documentation

virtual long fawkes::AStarState::calculateKey

(

)

[pure virtual]

Generates a unique key for this state.

There has to be a unique key for each state (fast closed list -> bottleneck!)

Returns:

unique long key

virtual double fawkes::AStarState::estimate

(

)

[pure virtual]

Estimate the heuristic cost to the goal.

Returns:

estimated cost as double

virtual std::vector< AStarState * > fawkes::AStarState::generateChildren

(

)

[pure virtual]

Generate all successors and put them to this vector.

Returns:

a vector of pointers of AStarState to a successor

virtual bool fawkes::AStarState::isGoal

(

)

[pure virtual]

Check, wether we reached a goal or not.

Returns:

true, if this state is a goal, else false

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Member Data Documentation

AStarState* fawkes::AStarState::father

Predecessor.

Definition at line 72 of file astar_state.h.

long fawkes::AStarState::key

The unique key of this state.

Definition at line 80 of file astar_state.h.

double fawkes::AStarState::pastCost

Past cost.

Definition at line 75 of file astar_state.h.

double fawkes::AStarState::totalEstimatedCost

Total estimated cost.

Definition at line 77 of file astar_state.h.

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The documentation for this class was generated from the following file:

• src/libs/utils/search/astar_state.h