/// <summary>
/// Checks if the item can be added to this container.
/// </summary>
/// <param name="item">The item to check.</param>
/// <param name="slot">Required or next free slot</param>
/// <param name="createSlot">Should a slot be created if the container is dynamic.</param>
/// <returns>Returns true if the item can be added.</returns>
public virtual bool CanAddItem(T item, out UISlot <T> slot, bool createSlot = false)
{
slot = null;
if (item == null)
{
return(true);
}
for (int i = 0; i < this.m_Slots.Count; i++)
{
if (this.m_Slots[i].IsEmpty && this.m_Slots[i].CanAddItem(item))
{
slot = this.m_Slots[i];
return(true);
}
}
if (this.m_DynamicContainer)
{
if (createSlot)
{
slot = CreateSlot();
}
return(true);
}
return(false);
}
/// <summary>
/// Replaces the items at index and returns the previous item.
/// </summary>
/// <param name="index">Index of slot to repalce.</param>
/// <param name="item">Item to replace with.</param>
/// <returns></returns>
public virtual T ReplaceItem(int index, T item)
{
if (index < this.m_Slots.Count)
{
UISlot <T> slot = this.m_Slots[index];
if (!slot.CanAddItem(item))
{
return(item);
}
if (item != null)
{
this.m_Collection.Add(item);
T current = slot.ObservedItem;
if (current != null)
{
RemoveItem(slot.Index);
}
slot.ObservedItem = item;
return(current);
}
}
return(item);
}
/// <summary>
/// Adds a new item to a free or dynamicly created slot in this container.
/// </summary>
/// <param name="item">Item to add</param>
/// <returns>True if item was added.</returns>
public virtual bool AddItem(T item)
{
UISlot <T> slot = null;
if (CanAddItem(item, out slot, true))
{
ReplaceItem(slot.Index, item);
return(true);
}
return(false);
}
/// <summary>
/// Creates a new slot
/// </summary>
protected virtual UISlot <T> CreateSlot()
{
if (this.m_SlotPrefab != null && this.m_SlotParent != null)
{
GameObject go = (GameObject)Instantiate(this.m_SlotPrefab);
go.SetActive(true);
go.transform.SetParent(this.m_SlotParent, false);
UISlot <T> slot = go.GetComponent <UISlot <T> >();
this.m_Slots.Add(slot);
slot.Index = Slots.Count - 1;
slot.Container = this;
return(slot);
}
Debug.LogWarning("Please ensure that the slot prefab and slot parent is set in the inspector.");
return(null);
}
/// <summary>
/// Removes the item at index. Sometimes an item requires more then one slot(two-handed weapon), this will remove the item with the extra slots.
/// </summary>
/// <param name="index">The slot index where to remove the item.</param>
/// <returns>Returns true if the item was removed.</returns>
public virtual bool RemoveItem(int index)
{
if (index < this.m_Slots.Count)
{
UISlot <T> slot = this.m_Slots[index];
T item = slot.ObservedItem;
if (item != null)
{
this.m_Collection.Remove(item);
slot.ObservedItem = null;
return(true);
}
}
return(false);
}
/// <summary>
/// Refreshs the slot list and reorganize indices
/// </summary>
public void RefreshSlots()
{
if (this.m_DynamicContainer && this.m_SlotParent != null)
{
this.m_Slots = this.m_SlotParent.GetComponentsInChildren <UISlot <T> >(true).ToList();
this.m_Slots.Remove(this.m_SlotPrefab.GetComponent <UISlot <T> >());
}
else
{
this.m_Slots = GetComponentsInChildren <UISlot <T> >(true).ToList();
}
for (int i = 0; i < this.m_Slots.Count; i++)
{
UISlot <T> slot = this.m_Slots[i];
slot.Index = i;
slot.Container = this;
}
}
public override bool CanAddItem(NotificationOptions item, out UISlot <NotificationOptions> slot, bool createSlot = false)
{
slot = null;
return(gameObject.activeInHierarchy && base.CanAddItem(item, out slot, createSlot));
}