ObjectVolcanoRock.cc

#include "ObjectVolcanoRock.hh"
 
namespace Kinoko::Field {

ObjectVolcanoRock::ObjectVolcanoRock(const System::MapdataGeoObj &params)
    : ObjectKCL(params), m_initialPos(pos()), m_initialRot(rot()),
      m_phaseShift(static_cast<s16>(params.setting(3))),
      m_zPeriod(std::max<s16>(static_cast<s16>(params.setting(1)), 2)),
      m_yPeriod(std::max<s16>(static_cast<s16>(params.setting(4)), 2)),
      m_zAmplitude(static_cast<f32>(static_cast<s16>(params.setting(2)))),
      m_yAmplitude(static_cast<f32>(static_cast<s16>(params.setting(5)))),
      m_zAngVel(6.2831855f / static_cast<f32>(m_zPeriod)),
      m_yAngVel(6.2831855f / static_cast<f32>(m_yPeriod)), m_variant(!!params.setting(0)) {
    setPos(calcPos(0));
}

ObjectVolcanoRock::~ObjectVolcanoRock() = default;

void ObjectVolcanoRock::calc() {
    EGG::Vector3f prevPos = pos();
    setPos(calcPos(System::RaceManager::Instance()->timer()));
    setMovingObjVel(pos() - prevPos);
}

EGG::Vector3f ObjectVolcanoRock::calcPos(u32 frame) {
    f32 tz = static_cast<f32>((frame + m_phaseShift) % m_zPeriod);
    f32 ty = static_cast<f32>(frame % m_yPeriod);
 
    auto zDisplacement = EGG::Vector3f::ez * EGG::Mathf::cos(m_zAngVel * tz) * m_zAmplitude;
    auto yDisplacement = EGG::Vector3f::ey * EGG::Mathf::cos(m_yAngVel * ty) * m_yAmplitude;
 
    calcTransform();
 
    return m_initialPos + transform().multVector33(zDisplacement + yDisplacement);
}
 
} // namespace Kinoko::Field