// Update is called once per frame
void Update()
{
if (pBook != null)
{
RaycastHit hit;
Ray ray = cam.ScreenPointToRay(Input.mousePosition);
// Left Mouse Btn (Open Book / Next Page / Prev Page)
if (Input.GetMouseButtonDown(0) && dragstate == DragState.NODRAG)
{
if (Physics.Raycast(ray, out hit, raycastDistance, bookLayer))
{
// Open Book Start
if (hit.transform.parent != null && hit.transform.parent.gameObject == pBook.gameObject)
{
dragStartPosition = hit.point;
if (pBook.GetBookState() == PBook.BookState.CLOSED)
{
float distance = hit.transform.InverseTransformPoint(hit.point).x * 2.25f;
distance = Mathf.Clamp(distance, minDragDistance, distance);
dragTargetPosition = dragStartPosition - pBook.transform.right * distance;
maxDragDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragstate = DragState.OPENDRAG;
}
}
// Next Page Start
if (hit.transform.parent.parent != null && hit.transform.parent.parent.gameObject == pBook.gameObject && hit.transform.name == "PageCenterRight" && !pBook.IsLastPage())
{
dragStartPosition = hit.point;
if (pBook.GetBookState() == PBook.BookState.OPEN)
{
float distance = Mathf.Abs(hit.transform.parent.parent.InverseTransformPoint(hit.point).x * 2.5f);
distance = Mathf.Clamp(distance, minDragDistance, distance);
dragTargetPosition = dragStartPosition - pBook.transform.right * distance;
maxDragDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragstate = DragState.NEXTDRAG;
}
}
// Prev Page Start
if (hit.transform.parent.parent != null && hit.transform.parent.parent.gameObject == pBook.gameObject && hit.transform.name == "PageCenterLeft" && !pBook.IsFirstPage())
{
dragStartPosition = hit.point;
if (pBook.GetBookState() == PBook.BookState.OPEN)
{
float distance = Mathf.Abs(hit.transform.parent.parent.InverseTransformPoint(hit.point).x * 1.9f);
distance = Mathf.Clamp(distance, minDragDistance, distance);
dragTargetPosition = dragStartPosition + pBook.transform.right * distance;
maxDragDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragstate = DragState.PREVDRAG;
}
}
}
}
// Right Mouse Btn (Close Book)
if (Input.GetMouseButtonDown(1) && dragstate == DragState.NODRAG)
{
if (Physics.Raycast(ray, out hit, raycastDistance, bookLayer))
{
// Close Book Start
if (hit.transform.parent.parent != null && hit.transform.parent.parent.gameObject == pBook.gameObject && hit.transform.name == "PageCenterLeft")
{
dragStartPosition = hit.point;
if (pBook.GetBookState() == PBook.BookState.OPEN)
{
float distance = Mathf.Abs(hit.transform.parent.parent.InverseTransformPoint(hit.point).x * 1.9f);
distance = Mathf.Clamp(distance, minDragDistance, distance);
dragTargetPosition = dragStartPosition + pBook.transform.right * distance;
maxDragDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragstate = DragState.CLOSEDRAG;
}
}
}
}
// Open Book Drag / Next Page Drag / Prev Page Drag
if (Input.GetMouseButton(0) && (dragstate == DragState.OPENDRAG || dragstate == DragState.NEXTDRAG || dragstate == DragState.PREVDRAG))
{
float absDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragStartPosition)).x);
float inputDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragValue = 1 - (1 / maxDragDistance * inputDistance);
dragValue = Mathf.Clamp(dragValue, 0, 1);
if (absDistance <= maxDragDistance && dragstate == DragState.OPENDRAG)
{
pBook.DragOpenBook(dragValue);
}
if (absDistance <= maxDragDistance && dragstate == DragState.NEXTDRAG)
{
pBook.DragNextPage(dragValue);
}
if (absDistance <= maxDragDistance && dragstate == DragState.PREVDRAG)
{
pBook.DragPrevPage(dragValue);
}
}
// Close Book Drag
if (Input.GetMouseButton(1) && dragstate == DragState.CLOSEDRAG)
{
float absDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragStartPosition)).x);
float inputDistance = Mathf.Abs((Input.mousePosition - cam.WorldToScreenPoint(dragTargetPosition)).x);
dragValue = 1 - (1 / maxDragDistance * inputDistance);
dragValue = Mathf.Clamp(dragValue, 0, 1);
if (absDistance <= maxDragDistance)
{
pBook.DragCloseBook(dragValue);
}
}
// Cancel Drag
if (Input.GetMouseButtonUp(0) || Input.GetMouseButtonUp(1))
{
CancelDrag();
}
if (!Input.GetMouseButton(0) && !Input.GetMouseButton(1) && dragstate != DragState.NODRAG)
{
CancelDrag();
}
}
}