public void Grab()
{
if (hoveredObject != null)
{
grabbedObject = hoveredObject;
grabbedObject.OnGrab(controller);
// adding interactions
controller.OnTriggerDown.AddListener(grabbedObject.OnInteraction);
controller.OnTriggerUpdated.AddListener(grabbedObject.OnUpdatingInteraction);
controller.OnTriggerUp.AddListener(grabbedObject.OnStopInteraction);
}
}
protected void StartPinch(Vector3 pinch_position)
{
HandModel hand_model = GetComponent <HandModel>();
if (active_object_ != null)
{
IgnoreCollisions(active_object_.gameObject, true);
palm_rotation_ = hand_model.GetPalmRotation();
rotation_from_palm_ = Quaternion.Inverse(palm_rotation_) * active_object_.transform.rotation;
current_pinch_ = active_object_.transform.position;
GrabbableObject grabbable = active_object_.GetComponent <GrabbableObject>();
if (grabbable == null || grabbable.rotateQuickly)
{
last_max_angular_velocity_ = active_object_.rigidbody.maxAngularVelocity;
active_object_.rigidbody.maxAngularVelocity = Mathf.Infinity;
}
if (grabbable != null)
{
grabbable.OnGrab();
if (grabbable.preferredOrientation)
{
Vector3 palm_vector = grabbable.palmOrientation;
if (hand_model.GetLeapHand().IsLeft)
{
palm_vector = Vector3.Scale(palm_vector, new Vector3(-1, 1, 1));
}
Quaternion relative_rotation = Quaternion.Inverse(palm_rotation_) *
active_object_.transform.rotation;
Vector3 axis_in_palm = relative_rotation * grabbable.objectOrientation;
Quaternion axis_correction = Quaternion.FromToRotation(axis_in_palm, palm_vector);
if (Vector3.Dot(axis_in_palm, palm_vector) < 0)
{
axis_correction = Quaternion.FromToRotation(axis_in_palm, -palm_vector);
}
rotation_from_palm_ = axis_correction * relative_rotation;
}
}
}
}
// Update is called once per frame
void Update()
{
if (canGrab && handGrabController.isGrab)
{
//抓取
if (!fj)
{
grabbableObject.OnGrab();
transform.position = handGrabController.thumbTip;
fj = gameObject.AddComponent <FixedJoint>();
fj.connectedBody = thumbTip.gameObject.GetComponent <Rigidbody>();
GameObject.Find("FlowerManager").GetComponent <CreateFlower>().InstanceFlower();
}
}
else
{
//断开
if (fj)
{
Destroy(fj);
}
}
}
protected void StartPinch()
{
// Only pinch if we're hovering over an object.
if (active_object_ == null)
{
return;
}
HandModel hand_model = GetComponent <HandModel>();
Debug.Log("Start pinch");
Leap.Utils.IgnoreCollisions(gameObject, active_object_.gameObject, true);
GrabbableObject grabbable = active_object_.GetComponent <GrabbableObject>();
// Setup initial position and rotation conditions.
palm_rotation_ = hand_model.GetPalmRotation();
object_pinch_offset_ = Vector3.zero;
// If we don't center the object, find the closest point in the collider for our grab point.
if (grabbable == null || !grabbable.centerGrabbedObject)
{
Vector3 delta_position = active_object_.transform.position - current_pinch_position_;
Ray pinch_ray = new Ray(current_pinch_position_, delta_position);
RaycastHit pinch_hit;
// If we raycast hits the object, we're outside the collider so grab the hit point.
// If not, we're inside the collider so just use the pinch position.
if (active_object_.Raycast(pinch_ray, out pinch_hit, grabObjectDistance))
{
object_pinch_offset_ = active_object_.transform.position - pinch_hit.point;
}
else
{
object_pinch_offset_ = active_object_.transform.position - current_pinch_position_;
}
}
filtered_pinch_position_ = active_object_.transform.position - object_pinch_offset_;
object_pinch_offset_ = Quaternion.Inverse(active_object_.transform.rotation) *
object_pinch_offset_;
rotation_from_palm_ = Quaternion.Inverse(palm_rotation_) * active_object_.transform.rotation;
// If we can rotate the object quickly, increase max angular velocity for now.
if (grabbable == null || grabbable.rotateQuickly)
{
last_max_angular_velocity_ = active_object_.rigidbody.maxAngularVelocity;
active_object_.rigidbody.maxAngularVelocity = Mathf.Infinity;
}
if (grabbable != null)
{
// Notify grabbable object that it was grabbed.
grabbable.OnGrab();
if (grabbable.useAxisAlignment)
{
// If this option is enabled we only want to align the object axis with the palm axis
// so we'll cancel out any rotation about the aligned axis.
Vector3 palm_vector = grabbable.rightHandAxis;
if (hand_model.GetLeapHand().IsLeft)
{
palm_vector = Vector3.Scale(palm_vector, new Vector3(-1, 1, 1));
}
Vector3 axis_in_palm = rotation_from_palm_ * grabbable.objectAxis;
Quaternion axis_correction = Quaternion.FromToRotation(axis_in_palm, palm_vector);
if (Vector3.Dot(axis_in_palm, palm_vector) < 0)
{
axis_correction = Quaternion.FromToRotation(axis_in_palm, -palm_vector);
}
rotation_from_palm_ = axis_correction * rotation_from_palm_;
}
}
}