anthocnet::core::PheromoneEngine Class Reference

#include <anthocnet/core/pheromone_engine.h>

Public Member Functions
	PheromoneEngine (const Config &config)
double	evaporate (double phValue) const
	phValue - (1 - alpha) * phValue
double	reinforce (double phValue, double phUpdate) const
	gamma * phValue + (1 - gamma) * phUpdate
void	updateRegular (PheromoneTable &table, NodeAddress dest, NodeAddress neighbor, double phUpdate) const
	Reinforce the (dest, neighbor) regular link travelled by an ant.
void	evaporateAll (PheromoneTable &table, double dtSeconds) const
	Time-proportional aging of every regular AND virtual link by alpha^(dt/interval), pruning links below minPheromone.
void	updateVirtual (PheromoneTable &table, const AntMessage &hello) const
	Reinforce the virtual links advertised by a hello.
void	cleanNeighbor (PheromoneTable &table, NodeAddress neighbor) const
	Prune a vanished neighbour from both tables.
bool	hasRegularDestination (const PheromoneTable &table, NodeAddress dest) const
	True if any neighbour still holds usable pheromone for this dest.

Detailed Description

Definition at line 21 of file pheromone_engine.h.

Constructor & Destructor Documentation

PheromoneEngine()

anthocnet::core::PheromoneEngine::PheromoneEngine ( const Config &  config )

inlineexplicit

Definition at line 23 of file pheromone_engine.h.

Member Function Documentation

evaporate()

double anthocnet::core::PheromoneEngine::evaporate

(

double

phValue

)

const

phValue - (1 - alpha) * phValue

reinforce()

double anthocnet::core::PheromoneEngine::reinforce	(	double	phValue,
		double	phUpdate
	)		const

gamma * phValue + (1 - gamma) * phUpdate

updateRegular()

void anthocnet::core::PheromoneEngine::updateRegular	(	PheromoneTable &	table,
		NodeAddress	dest,
		NodeAddress	neighbor,
		double	phUpdate
	)		const

Reinforce the (dest, neighbor) regular link travelled by an ant.

Aging of other links is handled separately by evaporateAll (ADR-0012).

evaporateAll()

void anthocnet::core::PheromoneEngine::evaporateAll	(	PheromoneTable &	table,
		double	dtSeconds
	)		const

Time-proportional aging of every regular AND virtual link by alpha^(dt/interval), pruning links below minPheromone.

Driven by the maintenance tick. One clock for both tables (#262) keeps them commensurable for virtual-vs-regular comparisons.

updateVirtual()

void anthocnet::core::PheromoneEngine::updateVirtual	(	PheromoneTable &	table,
		const AntMessage &	hello
	)		const

Reinforce the virtual links advertised by a hello.

Aging is handled by evaporateAll, same as the regular table (#262).

cleanNeighbor()

void anthocnet::core::PheromoneEngine::cleanNeighbor	(	PheromoneTable &	table,
		NodeAddress	neighbor
	)		const

Prune a vanished neighbour from both tables.

hasRegularDestination()

bool anthocnet::core::PheromoneEngine::hasRegularDestination	(	const PheromoneTable &	table,
		NodeAddress	dest
	)		const

True if any neighbour still holds usable pheromone for this dest.

---

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

• core/include/anthocnet/core/pheromone_engine.h