#ifndef WALKMODULENODEIMPORTANCE_H
#define WALKMODULENODEIMPORTANCE_H

#include "WalkModule.h"
#include "WalkStateHeading.h"

#include "../../../../Assertions.h"

/**
 * favor edges based on the importance-factor of the next node.
 * @see struct GridNodeImportance
 */
template <typename Node, typename WalkState> class WalkModuleNodeImportance : public WalkModule<Node, WalkState> {

private:

public:

	/** ctor */
	WalkModuleNodeImportance() {
		;
	}


	virtual void updateBefore(WalkState& state) override {
		(void) state;
	}

	virtual void updateAfter(WalkState& state, const Node& startNode, const Node& endNode) override {
		(void) state;
		(void) startNode;
		(void) endNode;
	}

	virtual void step(WalkState& state, const Node& curNode, const Node& nextNode) override {
		(void) state;
		(void) curNode;
		(void) nextNode;
	}

	double getProbability(const WalkState& state, const Node& startNode, const Node& curNode, const Node& potentialNode) const override {

		(void) state;
		(void) startNode;
		(void) curNode;

		const double prob = potentialNode.getNavImportance();
		return prob;

	}


};

#endif // WALKMODULENODEIMPORTANCE_H