Sa::Sa(glm::vec3 p_) : GeometryPositionColor()
{
 p = p_;
 for (int i=0; i<4; i++) pipe[i] = Parallelpiped();

 std::vector<KeyFrame> keyframes;
 keyframes.push_back(KeyFrame(glm::vec3(0, 0, 0), 0)); // Posotion & Time
 keyframes.push_back(KeyFrame(glm::vec3(1, 1, 0), 2000)); // Posotion & Time
 keyframes.push_back(KeyFrame(glm::vec3(-1, 2, 0),
4000)); // Posotion & Time
 keyframes.push_back(KeyFrame(glm::vec3(2, 3, 0), 6000)); // Posotion & Time
 curve = new CatmullRomCurveAnimation(keyframes, false); // loop을 원하면 true

 init();
}

void Sa::init() // “사”
{
 glm::vec3 p0 = p;
 pipe[0].set(p0, glm::vec3(0.3f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, 0.3f), glm::vec3(0.7f, 1.0f, 0.0f));
 glm::vec3 p1 = p + glm::vec3(1.4f, 0.0f, 0.0f);
 pipe[1].set(p1, glm::vec3(0.3f, 0.0f, 0.0f),
glm::vec3(0.0f, 0.0f, 0.3f), glm::vec3(-0.7f, 1.0f, 0.0f));
 glm::vec3 p2 = p + glm::vec3(2.0f, 0.0f, 0.0f);
 pipe[2].set(p2, glm::vec3(0.3f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, 0.3f), glm::vec3(0.0f, 1.0f,
0.0f));
 glm::vec3 p3 = p + glm::vec3(2.3f, 0.35f, 0.0f);
 pipe[3].set(p3, glm::vec3(0.5f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, 0.3f), glm::vec3(0.0f, 0.3f, 0.0f));
}

void Sa::draw(bool wireframe)
{
 for (int i=0; i<4; i++) pipe[i].draw();
}

// GeometryPositionColor 의 update을 override
bool Sa::update(float elapsedTime)
{
 if (active)
 {
  if (curve)
  {
   curve->updatePosition(elapsedTime);
   p = curve->getPosition();

   // if time is greater than duration, then set time to duration and set active to false
   if (!curve->getLoop() && elapsedTime >=  curve->getDuration())
   {
    done = true;
    active = false;
   }
  }
  init();
 }
 return true;
}