//New matrix is made out of -1 * position and -1 * rotation to make it seem like
//the camera is actully moving rather than the scene moving around the camera.
void Camera::update(const float deltatime)
{
glm::mat4 newtrans(1.0);
newtrans = glm::rotate(newtrans, -m_rotation[0], glm::vec3(1.0, 0.0, 0.0));
newtrans = glm::rotate(newtrans, -m_rotation[1], glm::vec3(0.0, 1.0, 0.0));
newtrans = glm::rotate(newtrans, -m_rotation[2], glm::vec3(0.0, 0.0, 1.0));
newtrans = glm::translate(newtrans, -m_position);
m_transformation = newtrans;
glLoadMatrixf(glm::value_ptr(m_transformation));
}
void BulletObject::MoveAction::step(float dt) {
if (done()) return;
stepTime(dt);
const float a = fracElapsed();
// linear interpolation of pos
btVector3 newpos = (1-a)*start.getOrigin() + a*end.getOrigin();
btQuaternion newrot = start.getRotation().slerp(end.getRotation(), a);
btTransform newtrans(newrot, newpos);
obj->motionState->setWorldTransform(newtrans);
}
