/* Returns an unused existing instance, or creates a new one if necessary */
public GameObject GetUnusedInstance()
{
GameObject instance;
int count = _unusedInstances.Count;
if (count > 0)
{
instance = _unusedInstances[count - 1];
instance.SetActive(true);
_usedInstances.Add(instance);
_unusedInstances.RemoveAt(count - 1);
//Debug.Log("reusing resource: " + instance.name + "; instances left: " + (count - 1));
}
else
{
if (ResourcesManager.Instance.logInstantiatesAndDestroys)
{
Debug.Log("Instantiate: " + _resourcePath);
}
instance = Instantiate(_resourceObject == null ? (_resourceObject = Resources.Load(_resourcePath) as GameObject) : _resourceObject) as GameObject;
_usedInstances.Add(instance);
// Add a PoolableResource component and set a reference to this ResourcePool
PoolableResource poolableResource = instance.AddComponent <PoolableResource>();
poolableResource.resourcePool = this;
//Debug.Log("new resource: " + instance.name + "; instances left: " + _unusedInstances.Count);
}
return(instance);
}
/* Destroys the specified GameObject, or disables it and adds it to the available instances of the corresponding ResourcePool */
public void RemoveResourceInstance(GameObject instance, bool deactivateIfNotExists = false)
{
PoolableResource poolableResource = instance.GetComponent <PoolableResource>();
if (poolableResource != null)
{
poolableResource.resourcePool.FreeInstance(instance);
}
else
{
if (deactivateIfNotExists)
{
instance.SetActive(false);
}
else
{
if (logInstantiatesAndDestroys)
{
Debug.Log("Destroy: " + instance.name);
}
Destroy(instance);
}
}
}
