/// <summary>
/// Add unity game object to pool.
/// </summary>
/// <param name="amount">Amount of game object clones to add to pool.</param>
/// <param name="prefab">Prefab refernce which will be added to pool.</param>
/// <returns>Pooled object key. It's needed to fetch pooled game object from pool.</returns>
public string PopulatePool(int amount, BasePoolable prefab)
{
if (prefab == null)
{
Debug.LogError("No prefab passed");
}
var key = prefab.GetPoolKey();
if (!_prefabCache.ContainsKey(key))
{
_prefabCache.Add(key, prefab);
}
if (!_gameObjectPool.TryGetValue(key, out var indicatedPool))
{
indicatedPool = new Stack <BasePoolable>();
}
for (var i = 0; i < amount; i++)
{
var el = InstantiateObject(prefab);
indicatedPool.Push(el);
}
_gameObjectPool.Add(key, indicatedPool);
return(key);
}
public void ReturnObjectToPool(string objectKey, BasePoolable obj)
{
if (!_gameObjectPool.TryGetValue(objectKey, out var indicatedPool))
{
Debug.LogError("Object pool not found for given key.");
}
obj.OnAddToPool();
indicatedPool.Push(obj);
}
protected virtual BasePoolable InstantiateObject(BasePoolable prefab)
{
var obj = Instantiate(prefab);
if (obj == null)
{
Debug.LogError($"Can not instantiate {prefab.name} for pool.");
}
// Get reference of poolable component
//var component = obj.GetComponent<BasePoolable>();
//if(component == null) {
// Debug.LogWarning("No poolable component attached to the object");
//} else {
// component.OnAddToPool();
//}
obj.OnAddToPool();
return(obj);
}
