/// <summary>
/// Destroy GameObject and remove from cache specific instance of DropObject
/// </summary>
/// <param name="dropObject"></param>
public void Destroy(DropObject dropObject)
{
if (!DropObjectsCache.ContainsKey(dropObject.Id))
{
Destroy(dropObject.gameObject);
return;
}
Destroy(DropObjectsCache[dropObject.Id].gameObject);
DropObjectsCache.Remove(dropObject.Id);
}
public void PlaceOnDropObject(DropObject dropObject)
{
TransformCache.SetParent(dropObject.TransformCache);
TransformCache.localPosition = Vector2.zero;
isClonning = false;
if (lastDropObject != null)
{
lastDropObject.isEmpty = true;
}
dropObject.isEmpty = false;
lastDropObject = dropObject;
}
/// <summary>
/// Attach events and Cache specific DropObject in <see cref="DropObjectsCache"/>
/// </summary>
/// <param name="dropObject"></param>
public void CacheDropObject(DropObject dropObject)
{
PrepareDropEvents(dropObject);
Guid id = dropObject.Id;
if (!DropObjectsCache.ContainsKey(id))
{
DropObjectsCache.Add(id, null);
}
DropObjectsCache[id] = dropObject;
DropObjectsCache[id].IsCached = true;
}
/// <summary>
/// Attach on specific DropObject all officially drop events.
/// </summary>
/// <param name="dropObject">Specific DropObject for preparing.</param>
private void PrepareDropEvents(DropObject dropObject)
{
dropObject.OnPointerEnterCallback = () => { LoadPointerEnterEvents(dropObject); };
dropObject.OnPointerExitCallback = () => { LoadPointerExitEvents(); };
void LoadPointerEnterEvents(DropObject оbject)
{
HoveredDropObject = оbject;
}
void LoadPointerExitEvents()
{
HoveredDropObject = null;
}
}
/// <summary>
/// Add new GameObject with attached DropObject on specific place in hierarchy.
/// </summary>
/// <param name="parent">Parent for new GameObject.</param>
/// <param name="prefab">Original object to copy.</param>
/// <param name="name">Specific name for new Game object.</param>
/// <returns>Created instance of DropObject.</returns>
public DropObject AddDropObject(Transform parent, DropObject prefab = null, string name = "NewDropObject")
{
DropObject dropObject;
if (prefab == null)
{
dropObject = new GameObject(name, typeof(RectTransform), typeof(DropObject), typeof(Image)).GetComponent <DropObject>();
}
else
{
dropObject = Instantiate(prefab, parent);
dropObject.name = name;
}
dropObject.transform.SetParent(parent);
CacheDropObject(dropObject);
return(dropObject);
}
/// <summary>
/// Attach on specific DragElement all officially drag events.
/// </summary>
/// <param name="dragElement">Specific DragElement for preparing.</param>
private void PrepareDragEvents(DragElement dragElement)
{
dragElement.OnBeginDragCallback = () => { LoadBeginDragEvents(dragElement); };
dragElement.OnDragCallback = () => LoadDragEvents();
dragElement.OnEndDragCallback = () => LoadEndDragEvents();
void LoadBeginDragEvents(DragElement element)
{
SelectedDragElement = element;
SelectedDragElement.TransformCache.SetParent(transform);
// Make all DragElements transparent
foreach (var entry in DropObjectsCache)
{
DropObject dropObject = entry.Value;
dropObject.GetComponent <Graphic>().raycastTarget = false;
}
onBeginDrag.Invoke();
}
void LoadDragEvents()
{
onDrag.Invoke();
// Revert all DragElements transparent
foreach (var entry in DropObjectsCache)
{
DropObject dropObject = entry.Value;
dropObject.GetComponent <Graphic>().raycastTarget = true;
}
}
void LoadEndDragEvents()
{
if (SelectedDragElement.isClonning)
{
if (HoveredDropObject != null)
{
if (HoveredDropObject.isEmpty)
{
SelectedDragElement.PlaceOnDropObject(HoveredDropObject);
Debug.Log("Cloning: HoveredDropObject : Empty");
}
else
{
SelectedDragElement.DestroyWithAnimation();
Debug.Log("Cloning: HoveredDropObject : Not empty");
}
}
else if (HoveredDropObject == null)
{
SelectedDragElement.DestroyWithAnimation();
Debug.Log("Cloning: HoveredDropObject : NULL");
}
}
else
{
if (HoveredDropObject != null)
{
if (HoveredDropObject.isEmpty)
{
SelectedDragElement.PlaceOnDropObject(HoveredDropObject);
Debug.Log("Grid: HoveredDropObject : Empty");
}
else
{
SelectedDragElement.ReturnWithAnimation();
Debug.Log("Grid: HoveredDropObject : Not empty");
}
}
else if (HoveredDropObject == null)
{
SelectedDragElement.DestroyWithoutAnimation();
Debug.Log("Grid: HoveredDropObject : NULL");
}
}
LastSelectedDragElement = SelectedDragElement;
SelectedDragElement = null;
onEndDrag.Invoke();
}
}