amuse/lib/Listener.cpp

32 lines
640 B
C++

#include "amuse/Listener.hpp"
namespace amuse
{
static void Cross(Vector3f& out, const Vector3f& a, const Vector3f& b)
{
out[0] = a[1] * b[2] - a[2] * b[1];
out[1] = a[2] * b[0] - a[0] * b[2];
out[2] = a[0] * b[1] - a[1] * b[0];
}
void Listener::setVectors(const float* pos, const float* dir, const float* heading, const float* up)
{
for (int i=0 ; i<3 ; ++i)
{
m_pos[i] = pos[i];
m_dir[i] = dir[i];
m_heading[i] = heading[i];
m_up[i] = up[i];
}
Normalize(m_heading);
Normalize(m_up);
Cross(m_right, m_heading, m_up);
Normalize(m_right);
m_dirty = true;
}
}