// Update is called once per frame
void Update()
{
bool rgrab = OVRInput.GetDown(OVRInput.Button.PrimaryHandTrigger, OVRInput.Controller.RTouch);
bool lgrab = OVRInput.GetDown(OVRInput.Button.PrimaryHandTrigger, OVRInput.Controller.LTouch);
bool rrelease = OVRInput.GetUp(OVRInput.Button.PrimaryHandTrigger, OVRInput.Controller.RTouch);
bool lrelease = OVRInput.GetUp(OVRInput.Button.PrimaryHandTrigger, OVRInput.Controller.LTouch);
// position vars for simpler code
Vector3 epos = eye.position;
Vector3 rpos = rhand.transform.position;
Vector3 lpos = lhand.transform.position;
Vector3 mid = 0.5f * (rpos + lpos);
Quaternion rrot = rhand.transform.rotation;
Quaternion lrot = lhand.transform.rotation;
// set anchor positions
m_ranchor.position = rpos;
m_lanchor.position = lpos;
m_manchor.position = mid;
m_ranchor.rotation = Quaternion.Slerp(m_ranchor.rotation, rrot * Quaternion.Inverse(m_rrot), 0.2f);
m_lanchor.rotation = Quaternion.Slerp(m_lanchor.rotation, lrot * Quaternion.Inverse(m_lrot), 0.2f);
Grabbable rtarget = rhand.target ?? environment;
Grabbable ltarget = lhand.target ?? environment;
// start right grab
if (rgrab)
{
// if same target as left hand, two hand grab
if (m_lgrabbed && rtarget == ltarget)
{
ResetAnchor(m_manchor);
rtarget.AttachTo(m_manchor);
m_twohand = true;
}
// one hand grab
else
{
ResetAnchor(m_ranchor);
rtarget.AttachTo(m_ranchor);
m_rrot = rrot;
}
m_rtarget = rtarget;
m_rgrabbed = true;
}
// start left grab
if (lgrab)
{
// if same target as right hand, two hand grab
if (m_rgrabbed && ltarget == rtarget)
{
ResetAnchor(m_manchor);
ltarget.AttachTo(m_manchor);
m_twohand = true;
}
// one hand grab
else
{
ResetAnchor(m_lanchor);
ltarget.AttachTo(m_lanchor);
m_lrot = lrot;
}
m_ltarget = ltarget;
m_lgrabbed = true;
}
// start two hand grab
if (m_twohand && (lgrab || rgrab))
{
m_rpos = rpos;
m_lpos = lpos;
m_hint = (mid - epos).normalized;
m_mrot = m_manchor.rotation;
m_scale = (rpos - lpos).magnitude;
}
// right hand release
if (rrelease)
{
if (m_twohand)
{
m_twohand = false;
m_rtarget.AttachTo(m_lanchor);
}
else
{
m_rtarget.Detach();
}
m_rgrabbed = false;
}
// left hand release
if (lrelease)
{
if (m_twohand)
{
m_twohand = false;
m_ltarget.AttachTo(m_ranchor);
}
else
{
m_ltarget.Detach();
}
m_lgrabbed = false;
}
// two hand scale and rotation
if (m_twohand)
{
float scale = (rpos - lpos).magnitude / m_scale;
m_manchor.localScale = scale * Vector3.one;
Vector3 hint = (mid - epos).normalized;
Vector3 dir0 = (m_rpos - m_lpos).normalized;
Vector3 dir1 = (rpos - lpos).normalized;
m_mrot = Quaternion.FromToRotation(dir0, dir1)
* Quaternion.FromToRotation(m_hint, hint)
* m_mrot;
m_manchor.rotation = m_mrot;
m_hint = hint;
m_rpos = rpos;
m_lpos = lpos;
}
}