public T GetObject()
{
ObjectPoolUnit freeUnit = null;
for (int i = 0; i < m_pool.Count; i++)
{
// if this unit is being used, continue to find a free one
if (m_pool[i].IsBeingUsed == true)
{
continue;
}
// if a free unit is found, store it and break the loop
freeUnit = m_pool[i];
break;
}
if (freeUnit == null)
{
if (m_isExtendable == false)
{
// since we constraint T as class, this will always be null
// if T can be data types or structs, the default value can vary
return(default(T));
}
else
{
freeUnit = CreateNewUnit();
}
}
freeUnit.IsBeingUsed = true;
m_objectBeingUsed.Add(freeUnit.ObjectInstance, freeUnit);
return(freeUnit.ObjectInstance);
}
private ObjectPoolUnit CreateNewUnit()
{
// create new units with passed-in factory method
ObjectPoolUnit newUnit = new ObjectPoolUnit(m_factoryFunction.Invoke());
m_pool.Add(newUnit);
return(newUnit);
}
public void ReleaseObject(T releasingObject)
{
if (m_objectBeingUsed.ContainsKey(releasingObject))
{
ObjectPoolUnit releasingUnit = m_objectBeingUsed[releasingObject];
releasingUnit.IsBeingUsed = false;
m_objectBeingUsed.Remove(releasingObject);
}
else
{
Debug.LogWarning("Object Pool of Type : " + typeof(T) + " trying to release object : " + releasingObject + ", which is not in pool.");
}
}
//---------------------------------------------------------------------------------------------------------------------------------------------
//從物件池中取得指定物件
public GameObject PickUpObject(string goName)
{
if (!Dict_ObjectPoolTag.ContainsKey(goName))
{
return(null); //查無物件
}
GameObject _result = null;
ObjectPoolUnit _unit = Dict_ObjectPoolTag[goName];
//創立新物件(Lambda)
System.Action <ObjectPoolUnit> CreateNew = (ObjectPoolUnit u) =>
{
GameObject _go = Instantiate(u.prefabReference, u.parentHolder);
u.AddElement(_go);
_result = _go;
};
if (_unit.ObjectPoolList == null || _unit.ObjectPoolList.Count == 0) //若物件池中無物件
{
CreateNew(_unit); //創立新物件
}
else //若物件池中存在物件
{
for (int i = 0; i < _unit.ObjectPoolList.Count; i++) //尋找隱藏中(active = false)物件
{
if (!_unit.ObjectPoolList[i].activeSelf)
{
_result = _unit.ObjectPoolList[i];
break;
}
}
if (_result == null)
{
CreateNew(_unit); //若所有物件皆在非隱藏狀態, 則建立新物件
}
}
return(_result);
}
