public void Update()
{
for (uint deviceIdx = 0; deviceIdx < OpenVR.k_unMaxTrackedDeviceCount; ++deviceIdx)
{
ControllerStateTracker controllerStateTracker = controllerManager.StateTrackers[deviceIdx];
if (!controllerStateTracker.MenuActive)
{
continue;
}
uint primaryAxisIdx = 0;
EVRButtonId primaryAxisButtonId = EVRButtonId.k_EButton_Axis0 + (int)primaryAxisIdx;
if (controllerStateTracker.WasClicked(primaryAxisButtonId) ||
controllerStateTracker.WasClicked(EVRButtonId.k_EButton_A)) //k_EButton_A is the A/X button on touch
{
model.Press();
}
if (controllerStateTracker.WasClicked(EVRButtonId.k_EButton_Grip))
{
model.PressSecondary();
}
EVRControllerAxisType axisType = (EVRControllerAxisType)OpenVR.System.GetInt32TrackedDeviceProperty(deviceIdx,
ETrackedDeviceProperty.Prop_Axis0Type_Int32 + (int)primaryAxisIdx);
if (axisType == EVRControllerAxisType.k_eControllerAxis_TrackPad)
{
//use interial scrolling
if (controllerStateTracker.HasTouchDelta(primaryAxisIdx))
{
Vector2 delta = controllerStateTracker.GetTouchDelta(primaryAxisIdx);
velocities[deviceIdx] = delta / controllerStateTracker.GetUpdateRate();
ApplyDelta(delta, deviceIdx, primaryAxisIdx);
}
else if (!controllerStateTracker.IsTouched(primaryAxisButtonId))
{
Vector2 velocity = velocities[deviceIdx];
if (velocity != Vector2.Zero)
{
if (velocity.LengthSquared() < 1e-5f)
{
velocity = Vector2.Zero;
model.DoneMove();
}
else
{
velocity *= 0.99f;
ApplyDelta(velocity, deviceIdx, primaryAxisIdx);
}
velocities[deviceIdx] = velocity;
}
}
}
else
{
//use velocity scrolling
if (controllerStateTracker.IsTouched(primaryAxisButtonId))
{
Vector2 position = controllerStateTracker.GetAxisPosition(primaryAxisIdx);
Vector2 velocity = PowerCurve(position, 2) * 0.2f;
Vector2 delta = velocity;
ApplyDelta(delta, deviceIdx, primaryAxisIdx);
}
else if (controllerStateTracker.BecameUntouched(primaryAxisButtonId))
{
model.DoneMove();
}
}
}
}
