/// <summary>
/// Asynchronous method taking in button input and sending it to the current selected tool
/// </summary>
/// <returns></returns>
private IEnumerator Button()
{
int maxButtons = trackerButtonList.getMaxButtons();
while (true)
{
Vector3 origin = wandObject.transform.position;
Vector3 direction = wandObject.transform.forward;
//i tracks the number of the current button
for (int i = 0; i < maxButtons; ++i)
{
//Current value of the button
bool curValue = VRPN.vrpnButton(trackerAddress, i);
TrackerButton currentButton = trackerButtonList.MapButton(i);
//If the previous state is true and the current value is false it is a button click
if (buttonState.ContainsKey(currentButton) && buttonState[currentButton] && !curValue)
{
//Fire the event
toolManager.handleButtonClick(currentButton, origin, direction);
//hasStarted = false;
hit = new RaycastHit(); //temp;
}
//If the current and previous are true then it is a buttondrag event
else if (buttonState.ContainsKey(currentButton) && buttonState[currentButton] && curValue && (currentButton == TrackerButton.Trigger))
{
if (hit.distance > 0)
{
//Fire the event
toolManager.handleButtonDrag(currentButton, hit, offset, origin, direction);
}
}
//If the previous is false and the current is true
else if (!(buttonState.ContainsKey(currentButton) && buttonState[currentButton]) && curValue && (currentButton == TrackerButton.Trigger))
{
Physics.Raycast(origin, direction * rayLength, out hit);
if (hit.distance > 0)
{
offset = hit.transform.position - hit.point;
}
toolManager.handleButtonDown(currentButton, hit, origin, direction);
}
//update the previous value
buttonState[currentButton] = curValue;
}
yield return(null);
}
}
/// <summary>
/// Gets the latest pushed button on tracker from vrpn. Stops after a preset amount of time (2 seconds currently).
/// </summary>
/// <returns>The number of the pushed button (0...n-1) or -1 if no button is pushed on tracker.</returns>
public int GetPushedButton()
{
lastButtonPressed = -1;
for (int ii = 0; ii < MAX_LOOPS_BUTTON_CHECK; ii++)
{
for (int jj = 0; jj < maxButtons; jj++)
{
bool btnValue = VRPN.vrpnButton(trackerAddress, jj, ii);
if (btnValue)
{
lastButtonPressed = jj;
}
}
if (lastButtonPressed > -1)
{
return(lastButtonPressed);
}
Thread.Sleep(SLEEP_TIMEOUT);
}
return(-1);
}