UniRxで簡単にオブジェクトプールを作る　UniRx.Toolkit

UniRxをインポート

オブジェクトプールの基本構成

最もシンプルなスクリプトを作ってみる

PooledObjects.cs

using UnityEngine;

public class PooledObjects : MonoBehaviour {
    void Start() { }
    void Update() { }
}

Pool.cs

using UniRx.Toolkit;
using UnityEngine;

public class Pool : ObjectPool<PooledObjects> {
    private GameObject _prefab;

    public Pool(GameObject prefab) {
        _prefab = prefab;
    }

    protected override PooledObjects CreateInstance() {
        return GameObject.Instantiate(_prefab).GetComponent<PooledObjects>();
    }
}

using UniRx.Toolkit;

public class Pool : ObjectPool<PooledObjects>{

public abstract class ObjectPool<T> : IDisposable
        where T : UnityEngine.Component
{
　　　　　　　　//省略
}

protected abstract T CreateInstance();

protected override PooledObjects CreateInstance() {
        return GameObject.Instantiate(_prefab).GetComponent<pooledobjects<();
}

private GameObject _prefab;

    public Pool(GameObject prefab) {
        _prefab = prefab;
    }

Manager.cs

using UniRx;
using UniRx.Triggers;
using UnityEngine;

public class Manager : MonoBehaviour {
    public GameObject Prefab;
    private Pool pool;
    public static Subject ReturnPool = new Subject();

    void Start() {
        pool = new Pool(Prefab);
        this.OnDestroyAsObservable().Subscribe(_ => pool.Dispose());
        ReturnPool.Subscribe(_obj => pool.Return(_obj)).AddTo(this.gameObject);
    }
    void Update() {
        if (Input.GetMouseButtonDown(0))
            pool.Rent();
    }
}

using UniRx;
using UniRx.Triggers;

public GameObject Prefab;

public static Subject<PooledObjects> ReturnPool = new Subject<PooledObjects>();

Pool pool = new Pool(Prefab);

this.OnDestroyAsObservable().Subscribe(_ => pool.Dispose());

ReturnPool.Subscribe(_obj => pool.Return(_obj)).AddTo(this.gameObject);

void Update() {
        if (Input.GetMouseButtonDown(0))
            pool.Rent();
    }

Unityで実行する

using UnityEngine;

public class PooledObjects : MonoBehaviour {
    void OnEnable() {
        Invoke("destroy", 1);
    }
    void destroy() {
        Manager.ReturnPool.OnNext(this);
    }
}

実際に使っていく