/// <summary>
/// Perform collision detection and sort the list of contacts.
/// </summary>
public void update()
{
ZSLinearShape shape = _stylusSelector.activeStylus as ZSLinearShape;
//float maxLength = (shape != null) ? _core.GetWorldScale() * shape._defaultLength : Mathf.Infinity;
float maxLength = (shape != null) ? _core.GetViewerScale() * shape._defaultLength : Mathf.Infinity;
float distance = Vector3.Distance(_stylusSelector.transform.position, _stylusSelector.activeStylus.hotSpot);
float castLength = (Mathf.Approximately(distance, 0.0f)) ? maxLength : distance;
//TODO: Sweeps/casts don't notice initial contacts. And OnCollisionEnter doesn't work between a plain Collider and a Rigidbody.
_hitInfos = Physics.RaycastAll(_stylusSelector.transform.position, _stylusSelector.transform.forward, castLength, _layerMask);
Array.Sort <RaycastHit> (_hitInfos, this);
}
/// <summary>
/// This function is called by ZSCore after each input update.
/// </summary>
private void OnCoreUpdated(ZSCore sender)
{
if (sender != _zsCore)
{
return;
}
//Update stylus button states.
for (int i = 0; i < numButtons; ++i)
{
_wasStylusButtonPressed [i] = _isStylusButtonPressed [i];
_wasMouseButtonPressed [i] = _isMouseButtonPressed [i];
//Have to combine mouse state down here so asynchronous clients see it at the right time.
_isStylusButtonPressed [i] = !_zsCore.IsMouseEmulationEnabled() && _zsCore.IsTrackerTargetButtonPressed(ZSCore.TrackerTargetType.Primary, i);
_isMouseButtonPressed [i] = Input.GetMouseButton(i);
}
bool useMousePointer = false;
if (_useTracking && !_zsCore.IsMouseEmulationEnabled())
{
Matrix4x4 pose = _zsCore.GetTrackerTargetWorldPose(_targetType);
if (pose != _previousStylusPose)
{
_timeSinceStylusMoved = 0f;
}
else
{
_timeSinceStylusMoved += Time.deltaTime;
}
useMousePointer = _timeSinceStylusMoved > StylusTimeout;
if (!useMousePointer)
{
_previousStylusPose = pose;
transform.localScale = ZSStylusSelector.GetScale(pose);
transform.rotation = ZSStylusSelector.GetRotation(pose);
transform.position = ZSStylusSelector.GetPosition(pose);
transform.localScale = _zsCore.GetViewerScale() * Vector3.one;
}
}
//Simulate the stylus based on mouse input.
Vector3 dMousePosition = Input.mousePosition - _lastMousePosition;
dMousePosition [2] = WheelSensitivity * Input.GetAxis("Mouse ScrollWheel");
if (Input.GetKey(KeyCode.LeftBracket))
{
dMousePosition [2] -= WheelSensitivity * Time.deltaTime;
}
if (Input.GetKey(KeyCode.RightBracket))
{
dMousePosition [2] += WheelSensitivity * Time.deltaTime;
}
Camera mainCamera = (_zsCore.IsStereoEnabled()) ? _centerCamera : _zsCore.CurrentCamera.camera;
if (useMousePointer && mainCamera != null && mainCamera.enabled)
{
if (stylusSimulatorMode == StylusSimulatorMode.Projection || stylusSimulatorMode == StylusSimulatorMode.Position)
{
//Only update the wheel total if we aren't rotating. Avoids extra Z translation artifact.
_mouseWheel += dMousePosition [2];
Ray ray = mainCamera.ScreenPointToRay(Input.mousePosition);
Vector3 rayPoint = ray.GetPoint(0.1f + 0.5f * _mouseWheel * mainCamera.transform.localScale.magnitude);
transform.position = rayPoint;
if (stylusSimulatorMode == StylusSimulatorMode.Projection)
{
transform.rotation = Quaternion.LookRotation(ray.GetPoint(1.0f) - mainCamera.transform.position, mainCamera.transform.up);
}
}
else if (stylusSimulatorMode == StylusSimulatorMode.Rotation)
{
Vector3 euler = transform.localRotation.eulerAngles;
euler += new Vector3(-0.1f * dMousePosition.y, 0.1f * dMousePosition.x, -1000.0f * dMousePosition.z);
var oldHoverPoint = transform.TransformPoint(_localHoverPoint);
transform.localRotation = Quaternion.Euler(euler);
transform.localPosition += oldHoverPoint - transform.TransformPoint(_localHoverPoint);
}
}
//Make the hovered object the closest one to the tip.
if (_useCollision)
{
_hoverQueue.update();
RaycastHit hit = _hoverQueue.getFirst();
if (hit.collider != null)
{
HoverPoint = hit.point;
HoverObject = (hit.collider.gameObject.layer == uiLayer) ?
hit.collider.gameObject :
objectResolver(hit.collider.gameObject);
}
else
{
ZSLinearShape linearStylus = activeStylus as ZSLinearShape;
if (linearStylus != null && linearStylus._tip != null && linearStylus._tip.activeSelf)
{
HoverPoint = linearStylus._tip.transform.position;
}
else
{
HoverPoint = activeStylus.hotSpot;
}
HoverObject = null;
}
}
else
{
HoverPoint = transform.TransformPoint(_localHoverPoint);
}
if (_HoverObject != null)
{
activeStylus.OnHoverStay(_HoverObject, HoverPoint);
}
//Update the set of selected objects based on clicking.
if (GetButtonDown(SelectButton))
{
if (!Input.GetKey(KeyCode.LeftControl))
{
selectedObjects.Clear();
}
if (_HoverObject != null)
{
if (_HoverObject.layer == uiLayer)
{
_wasHoveredObjectSelected = false;
}
else
{
_wasHoveredObjectSelected = selectedObjects.Contains(_HoverObject);
if (!selectedObjects.Contains(_HoverObject))
{
selectedObjects.Add(_HoverObject);
}
}
}
_buttonDownPosition = transform.position;
}
if (GetButtonUp(SelectButton))
{
bool wasDrag = (transform.position - _buttonDownPosition).magnitude > minDragDistance;
if (_HoverObject != null && _wasHoveredObjectSelected && !wasDrag && Input.GetKey(KeyCode.LeftControl))
{
selectedObjects.Remove(_HoverObject);
}
}
// Send messages to objects whose selection state changed.
foreach (GameObject selectedObject in _oldSelectedObjects)
{
if (selectedObject != null && !selectedObjects.Contains(selectedObject))
{
activeStylus.OnDeselected(selectedObject);
selectedObject.SendMessage("OnDeselected", SendMessageOptions.DontRequireReceiver);
}
}
GameObject[] tmpSelectedObjects = new GameObject[selectedObjects.Count];
selectedObjects.CopyTo(tmpSelectedObjects); // So objects can de-select themselves.
foreach (GameObject selectedObject in tmpSelectedObjects)
{
if (selectedObject != null && !_oldSelectedObjects.Contains(selectedObject))
{
selectedObject.SendMessage("OnSelected", SendMessageOptions.DontRequireReceiver);
activeStylus.OnSelected(selectedObject, HoverPoint);
}
}
_oldSelectedObjects.Clear();
foreach (GameObject selectedObject in selectedObjects)
{
if (selectedObject != null)
{
_oldSelectedObjects.Add(selectedObject);
}
}
_lastMousePosition = Input.mousePosition;
activeStylus.Tool.OnStylus();
}