species.hh

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#ifndef UTOPIA_MODELS_PREDATORPREY_SPECIES_HH
#define UTOPIA_MODELS_PREDATORPREY_SPECIES_HH
 
#include <utility>
 
#include "utopia/core/types.hh"
 
namespace Utopia::Models::PredatorPrey {
 
struct SpeciesState {
    bool on_cell;
 
    double resources;
 
    // .. Constructors ........................................................
    SpeciesState() : 
        on_cell{false},
        resources{0.}
    {}
};
 
struct SpeciesBaseParams {
    // .. Living ..............................................................
    double cost_of_living;
 
    double resource_intake;
    
    double repro_resource_requ;
 
    double resource_max;
 
    // .. Reproduction ........................................................
    double repro_cost;
    
    double repro_prob;
 
    // .. Constructors ........................................................
    SpeciesBaseParams(const Utopia::DataIO::Config& cfg)
    :
        cost_of_living(get_as<double>("cost_of_living", cfg)),
        resource_intake(get_as<double>("resource_intake", cfg)),
        repro_resource_requ(get_as<double>("repro_resource_requ", cfg)),
        resource_max(get_as<double>("resource_max", cfg)),
        repro_cost(get_as<double>("repro_cost", cfg)),
        repro_prob(get_as<double>("repro_prob", cfg))
    {
        // Perform some checks
        if (repro_cost > repro_resource_requ) {
            throw std::invalid_argument("Parameter repro_cost needs to be "
                "smaller than or equal to the minimal resources required for "
                "reproduction!");
        }
    }
 
    SpeciesBaseParams() = delete;
};
 
struct PredatorParams : public SpeciesBaseParams{
    // .. Constructors ........................................................
    PredatorParams(const Utopia::DataIO::Config& cfg)
    :
        SpeciesBaseParams(cfg)
    {};
 
    PredatorParams() = delete;
};
 
struct PreyParams : public SpeciesBaseParams {
    // .. Interaction .........................................................
    double p_flee;
 
    // .. Constructors ........................................................
    PreyParams(const Utopia::DataIO::Config& cfg)
    :
        SpeciesBaseParams(cfg),
        p_flee(get_as<double>("p_flee", cfg))
    {};
 
    PreyParams() = delete;
};
 
 
struct SpeciesParams{
    PreyParams prey;
 
    PredatorParams predator;
 
    // .. Constructors ........................................................
    SpeciesParams(const Utopia::DataIO::Config& cfg)
    :
        prey(cfg["prey"]),
        predator(cfg["predator"])
    {};
 
    SpeciesParams() = delete;
};
 
 
} // Utopia::Models::PredatorPrey
 
#endif // UTOPIA_MODELS_PREDATORPREY_SPECIES_HH