Utopia::Models::PredatorPrey::State Struct Reference

Cell State struct. More...

#include <PredatorPrey.hh>

Collaboration diagram for Utopia::Models::PredatorPrey::State:

Public Member Functions
template<class RNGType >
	State (const DataIO::Config &cfg, const std::shared_ptr< RNGType > &rng)
	Construct a cell state with the use of a RNG.

Public Attributes
SpeciesState	predator
	The state a predator on this cell has.
SpeciesState	prey
	The state a prey on this cell has.
bool	moved_predator
	Flag to indicate if the predator on this cell has already moved

Detailed Description

Cell State struct.

Constructor & Destructor Documentation

State()

template<class RNGType >

Utopia::Models::PredatorPrey::State::State ( const DataIO::Config &  cfg, const std::shared_ptr< RNGType > &  rng  )

inline

Construct a cell state with the use of a RNG.

    :
        predator{},
        prey{},
        moved_predator(false)
    {
        std::uniform_real_distribution<double> dist(0., 1.);
 
        // Get the threshold probability value
        const auto p_prey = get_as<double>("p_prey", cfg);
        const auto p_predator = get_as<double>("p_predator", cfg);
 
        // Set a prey on a cell with the given probability by generating a
        // random number in [0, 1) and compare it to wanted probability.
        if (dist(*rng) < p_prey){
            prey.on_cell = true;
            prey.resources = get_as<double>("init_resources",
                                            cfg["prey"]);
        }
 
        // Set a predator on a cell with the given probability.
        if (dist(*rng) < p_predator){
            predator.on_cell = true;
            predator.resources = get_as<double>("init_resources",
                                                cfg["predator"]);
        }
    }

Member Data Documentation

moved_predator

bool Utopia::Models::PredatorPrey::State::moved_predator

Flag to indicate if the predator on this cell has already moved

predator

SpeciesState Utopia::Models::PredatorPrey::State::predator

The state a predator on this cell has.

prey

SpeciesState Utopia::Models::PredatorPrey::State::prey

The state a prey on this cell has.

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

• src/utopia/models/PredatorPrey/PredatorPrey.hh