/// <summary>
/// Checks is can drag any item or if can show UI
/// </summary>
/// <param name="ray"></param>
private void CheckIfCanDrag(Ray ray)
{
RaycastHit hit;
if (Physics.Raycast(ray, out hit, maxRayDistance, draggableLayerMask))
{
draggingObject = hit.transform.GetComponent <IDraggable>();
if (draggingObject != null && draggingObject.CanDrag())
{
isMouseDragging = true;
draggingObject.OnDragEvent(isMouseDragging);
draggingTransform = hit.transform;
originalPosition = draggingTransform.position;
positionOfScreen = renderCamera.WorldToScreenPoint(originalPosition);
offsetValue = originalPosition - renderCamera.ScreenToWorldPoint(
new Vector3(Input.mousePosition.x, Input.mousePosition.y, positionOfScreen.z));
}
}
if (Physics.Raycast(ray, out hit, maxRayDistance, inventoryLayerMask) && !isMouseDragging)
{
bagUI = hit.transform.GetComponent <IInventoryUICheckable>();
if (bagUI != null)
{
bagUI.ShowUI();
isCheckingUI = true;
}
}
}
private void Update()
{
Ray ray = renderCamera.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, maxRayDistance, draggableLayerMask))
{
draggingObject = hit.transform.GetComponent <IDraggable>();
if (draggingObject != null && draggingObject.CanDrag())
{
draggingObject.HightlightAvailableForDrag();
}
}
if (Input.GetMouseButtonDown(0))
{
CheckIfCanDrag(ray);
}
if (Input.GetMouseButtonUp(0))
{
if (isMouseDragging)
{
ReleaseDraggingItem();
}
else
{
ReleaseBagUI();
}
}
if (isMouseDragging && draggingObject != null)
{
DragItem(ray);
}
}