public void OnDrag(PointerEventData eventData)
{
if (AllowedButtons?.Contains(eventData.button) ?? false)
{
if (Camera.main.orthographic)
{
transform.position += new Vector3(eventData.delta.x, eventData.delta.y, 0);
}
else
{
Vector3 screenPosition = Input.mousePosition;
// Track the current depth of the object in front of the camera.
// (You could also set this to some fixed constant or stored variable)
screenPosition.z = Vector3.Dot(transform.position - Camera.main.transform.position, Camera.main.transform.forward);
// Transform this screen position to a world position,
// using the camera's transformation & projection/viewport settings.
// Snap the object to this position.
transform.position = Camera.main.ScreenToWorldPoint(screenPosition);
}
HoldingHandlers.ForEach(handler => handler(new DraggableHoldingEventArgs <DraggableT>((DraggableT)this, eventData.button)));
}
}
private void Start()
{
PickedHandlers.Add(MyPickedHandler);
HoldingHandlers.Add(MyHoldingHandler);
ReleasedHandlers.Add(MyReleasedHandler);
}