Function displaySensorActionReferenceCounts

src/analysis.cpp:318–351

Print how many connections occur from each kind of sensor neuron and to each kind of action neuron over the entire population. This helps us to see which sensors and actions are most useful for survival.

// each kind of action neuron over the entire population. This helps us to
// see which sensors and actions are most useful for survival.
void displaySensorActionReferenceCounts()
{
    std::vector<unsigned> sensorCounts(Sensor::NUM_SENSES, 0);
    std::vector<unsigned> actionCounts(Action::NUM_ACTIONS, 0);

    for (unsigned index = 1; index <= p.population; ++index) {
        if (peeps[index].alive) {
            const Indiv &indiv = peeps[index];
            for (const Gene &gene : indiv.nnet.connections) {
                if (gene.sourceType == SENSOR) {
                    assert(gene.sourceNum < Sensor::NUM_SENSES);
                    ++sensorCounts[(Sensor)gene.sourceNum];
                }
                if (gene.sinkType == ACTION) {
                    assert(gene.sinkNum < Action::NUM_ACTIONS);
                    ++actionCounts[(Action)gene.sinkNum];
                }
            }
        }
    }

    std::cout << "Sensors in use:" << std::endl;
    for (unsigned i = 0; i < sensorCounts.size(); ++i) {
        if (sensorCounts[i] > 0) {
            std::cout << "  " << sensorCounts[i] << " - " << sensorName((Sensor)i) << std::endl;
        }
    }
    std::cout << "Actions in use:" << std::endl;
    for (unsigned i = 0; i < actionCounts.size(); ++i) {
        if (actionCounts[i] > 0) {
            std::cout << "  " << actionCounts[i] << " - " << actionName((Action)i) << std::endl;
        }
    }
}


void displaySampleGenomes(unsigned count)