cpp/motions/bimodalangle.cpp

//
// Created by dominik on 8/23/24.
//

#include "bimodalangle.h"
#include "base.h"

BimodalAngle::BimodalAngle(const double delta, const double eta, const double angle1, const double angle2, const double prob, std::mt19937_64 &rng) :
    Motion(std::string("Bimodal Angle Jump"), delta, eta, rng),
    m_angle1(angle1 * M_PI / 180.0),
    m_angle2(angle2 * M_PI / 180.0),
    m_prob(prob) {};
BimodalAngle::BimodalAngle(std::mt19937_64 &rng) : Motion(std::string("Bimodal Angle Jump"), rng) {}

void BimodalAngle::initialize() {
    m_prev_pos = draw_position();
};

double BimodalAngle::jump() {
    const double angle = m_uni_dist(m_rng) < m_prob ? m_angle1 : m_angle2;
    const double gamma{2 * M_PI * m_uni_dist(m_rng)};
    m_prev_pos = rotate(m_prev_pos, angle, gamma);

    return omega_q(m_prev_pos);
}

void BimodalAngle::setParameters(const std::unordered_map<std::string, double> &parameter) {
    Motion::setParameters(parameter);

    m_angle1 = parameter.at("angle1") * M_PI / 180.;
    m_angle2 = parameter.at("angle2") * M_PI / 180.;
    m_prob = parameter.at("probability1");
}