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Indoor/grid/GridNode.h
2018-10-25 11:50:12 +02:00

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/*
* © Copyright 2014 Urheberrechtshinweis
* Alle Rechte vorbehalten / All Rights Reserved
*
* Programmcode ist urheberrechtlich geschuetzt.
* Das Urheberrecht liegt, soweit nicht ausdruecklich anders gekennzeichnet, bei Frank Ebner.
* Keine Verwendung ohne explizite Genehmigung.
* (vgl. § 106 ff UrhG / § 97 UrhG)
*/
#ifndef GRIDNODE_H
#define GRIDNODE_H
#include "GridNodeBBox.h"
#include "GridPoint.h"
#include <functional>
/** forward decl. */
template<typename> class Grid;
/**
* INTERNAL DATASTRUCTURE
* this data-structure is internally used by the Grid
* to store additional information for each node besides
* the user's requested data-structure
*/
struct GridNode {
private:
static int constexpr MAX_NEIGHBORS = 10;
private:
/** grant full access to the grid */
template<typename> friend class Grid;
/** INTERNAL: node's index array-index */
int _idx;
/** INTERNAL: store neighbors (via index) */
int _neighbors[MAX_NEIGHBORS];
/** INTERNAL: number of neighbors */
uint8_t _numNeighbors;
/** semantic annotation for this node */
uint8_t _type;
static std::vector<std::function<void(std::ostream&)>> serializers;
static std::vector<std::function<void(std::istream&)>> deserializers;
public:
static const uint8_t TYPE_FLOOR = 0;
static const uint8_t TYPE_STAIR = 1;
static const uint8_t TYPE_ELEVATOR = 2;
static const uint8_t TYPE_DOOR = 3;
static const uint8_t TYPE_OUTDOOR = 100;
public:
/** ctor */
GridNode() : _idx(-1), _neighbors(), _numNeighbors(0), _type(0) {;}
/** get the node's index within its grid */
int getIdx() const {return _idx;}
/** get the x-th neighbor's index within its grid */
int getNeighborIdx(const int x) const {return _neighbors[x];}
/** get the number of neighbors for this node */
int getNumNeighbors() const {return _numNeighbors;}
/** reached neighbor limit? */
bool fullyConnected() const {return _numNeighbors >= MAX_NEIGHBORS;}
/** is this node connected to the given index? */
bool hasNeighbor(const int idx) const {
for (int i = 0; i < _numNeighbors; ++i) {
if (_neighbors[i] == idx) {return true;}
}
return false;
}
/** get the node's semantic type */
uint8_t getType() const {return _type;}
/** set the node's semantic type */
void setType(const uint8_t type) {this->_type = type;}
// /** get the n-th neighbor for this node */
// template <int gridSize_cm, typename T> inline T& getNeighbor(const int nth, const Grid<gridSize_cm, T>& grid) const {
// return grid.getNeighbor(_idx, nth);
// }
};
#endif // GRIDNODE_H