Unity3d 实用的PoolManager教程

先看Example Scene

CreationExample 脚本

/// <description>
///    An example that shows the creation of a pool.
/// </description>
public class CreationExample : MonoBehaviour
{
    /// <summary>
    /// The prefab to spawn from.
    /// </summary>
    public Transform testPrefab;
    public string poolName = "Creator";
    public int spawnAmount = 50;
    public float spawnInterval = 0.25f;

    private SpawnPool pool;

    /// <summary>
    /// 设置池的基本参数.
    /// </summary>
    private void Start()
    {
        this.pool = PoolManager.Pools.Create(this.poolName);

        // 将这个池设为当前物体的子物体

        this.pool.group.parent = this.transform;

        // 设置位置角度

        this.pool.group.localPosition = new Vector3(1.5f, 0, 0);
        this.pool.group.localRotation = Quaternion.identity;

        // 创建一个预制池，不需要预先装载

        // 如果有没特别的需求不需要设置，池会采用默认设置 只调用Spawn()方法即可

        // 下面的设置可以跳过

        PrefabPool prefabPool= new PrefabPool(testPrefab);
        prefabPool.preloadAmount = 5;      // 默认参数 预先加载的预制数量 下面的参数 我会放在下文详细解释

        prefabPool.cullDespawned = true;
        prefabPool.cullAbove = 10;
        prefabPool.cullDelay = 1;
        prefabPool.limitInstances = true;
        prefabPool.limitAmount = 5;
        prefabPool.limitFIFO = true;

        this.pool.CreatePrefabPool(prefabPool);//在这spwan池中 开辟一个预制池

        this.StartCoroutine(Spawner());

        // 键值对的方式存放预制

        // 我们知道在这个 Shapes 池中 ，咱们使用了 Cude 预制

        // 使用相应的Key获取 池中的预制实例  

        Transform cubePrefab   = PoolManager.Pools["Shapes"].prefabs["Cube"];
        Transform cubeinstance = PoolManager.Pools["Shapes"].Spawn(cubePrefab);
        cubeinstance.name = "Cube (Spawned By CreationExample.cs)";      }

    /// <summary>
    /// 每隔spawnInterval秒 就生产一个 预制实例
    /// </summary>
    private IEnumerator Spawner()
    {
        int count = this.spawnAmount;
        Transform inst;
        while (count > 0)
        {
            // 排一条线

            inst = this.pool.Spawn(this.testPrefab, Vector3.zero, Quaternion.identity);
            inst.localPosition = new Vector3(this.spawnAmount - count, 0, 0);

            count--;

            yield return new WaitForSeconds(this.spawnInterval);
        }

        // When done, start despawning
        this.StartCoroutine(Despawner());
    }

    /// <summary>
    /// 每隔spawnInterval秒回收一个相应的实例
    /// </summary>
    private IEnumerator Despawner()
    {
        while (this.pool.Count > 0)
        {
            // 当最后一个实例被Despawn，换句话说移除这个池(队列)，这个池会复位

            Transform instance = this.pool[pool.Count - 1];
            this.pool.Despawn(instance);  // Internal count--

            yield return new WaitForSeconds(this.spawnInterval);
        }
    }

}

明天继续更新

Unity3d 实用的PoolManager教程