/// Initialize from data.
///
/// \param data Frame data.
/// \param bone_amount Amount of bone elements.
void initFromData(const int16_t *data, unsigned frame_amount, float scale)
{
m_time = fixed_8_8_to_float(data[0]);
//std::cout << m_time << std::endl;
#if defined(USE_LD)
if((frame_amount % 7) != 0)
{
std::ostringstream sstr;
sstr << "invalid frame amount: " << frame_amount;
BOOST_THROW_EXCEPTION(std::runtime_error(sstr.str()));
}
#endif
for(unsigned ii = 1; ((frame_amount + 1) > ii); ii += 7)
{
vec3 pos(static_cast<float>(data[ii + 0]),
static_cast<float>(data[ii + 1]),
static_cast<float>(data[ii + 2]));
quat rot(fixed_4_12_to_float(data[ii + 3]),
fixed_4_12_to_float(data[ii + 4]),
fixed_4_12_to_float(data[ii + 5]),
fixed_4_12_to_float(data[ii + 6]));
//std::cout << pos << " ; " << rot << std::endl;
m_bones.emplace_back(pos * scale, rot);
}
}
/// Get a fresh animation state.
///
/// Data contained in the returned animation state is undefined, but not invalid.
///
/// \return Animation state.
AnimationState& newAnimationState()
{
unsigned ret = m_current_animation_state++;
if(m_animation_states.size() <= ret)
{
m_animation_states.emplace_back();
}
return m_animation_states[ret];
}