ObjectCrane.cc

#include "ObjectCrane.hh"
 
namespace Field {
 
ObjectCrane::ObjectCrane(const System::MapdataGeoObj &params)
    : ObjectKCL(params), m_startPos(m_pos) {
    m_xt = params.setting(3);
    m_yt = 0;
    m_xPeriod = std::max(static_cast<u16>(2), params.setting(1));
    m_yPeriod = std::max(static_cast<u16>(2), params.setting(4));
    m_xAmplitude = params.setting(2);
    m_yAmplitude = params.setting(5);
 
    m_xFreq = 2 * F_PI / static_cast<f32>(m_xPeriod);
    m_yFreq = 2 * F_PI / static_cast<f32>(m_yPeriod);
}
 
ObjectCrane::~ObjectCrane() = default;
 
void ObjectCrane::calc() {
    const EGG::Vector3f prevPos = m_pos;
 
    f32 xDelta = EGG::Mathf::cos(m_xFreq * static_cast<f32>(m_xt));
    EGG::Vector3f scaledX = EGG::Vector3f::ex * xDelta * static_cast<f32>(m_xAmplitude);
 
    f32 yDelta = EGG::Mathf::cos(m_yFreq * static_cast<f32>(m_yt));
    EGG::Vector3f scaledY = EGG::Vector3f::ey * yDelta * static_cast<f32>(m_yAmplitude);
 
    calcTransform();
 
    m_pos = m_startPos + m_transform.multVector33(scaledX + scaledY);
    m_flags.setBit(eFlags::Position);
 
    if (m_yt++ > m_yPeriod) {
        m_yt = 0;
    }
 
    if (m_xt++ > m_xPeriod) {
        m_xt = 0;
    }
 
    setMovingObjVel(m_pos - prevPos);
}
 
} // namespace Field