39 lines
873 B
C#

using System;
using System.Collections.Generic;
namespace Syntriax.Engine.Core;
public class Pool<T> : IPool<T>
{
public Event<IPool<T>, T> OnRemoved { get; } = new();
public Event<IPool<T>, T> OnReturned { get; } = new();
private readonly Func<T> generator = null!;
private readonly Queue<T> queue = new();
public T Get()
{
if (!queue.TryDequeue(out T? result))
result = generator();
OnRemoved?.Invoke(this, result);
return result;
}
public void Return(T item)
{
if (queue.Contains(item))
return;
queue.Enqueue(item);
OnReturned?.Invoke(this, item);
}
public Pool(Func<T> generator, int initialCapacity = 1)
{
this.generator = generator;
for (int i = 0; i < initialCapacity; i++)
queue.Enqueue(generator());
}
}