internal bool InactiveInstance(Transform xform, bool sendEventMessage)
{
if (this.LogMessages)
{
Debug.Log(string.Format("SpawnPool {0} ({1}): Despawning '{2}'",
this.ObjectPool.poolName,
this.prefab.name,
xform.name));
}
//把实例从显示数组移到隐藏数组中
this._active_List.Remove(xform);
this._inactive_List.Add(xform);
//通知自定义代码中添加的实例的事件OnDespawned(像除自身外所有子类发消息)
if (sendEventMessage)
{
xform.gameObject.BroadcastMessage(
"OnDespawned",
this.ObjectPool,
SendMessageOptions.DontRequireReceiver
);
}
PoolManagerUtils.SetActive(xform.gameObject, false);
if (!this._destroy_Bool && // 销毁开关
this.AutoDestroy && // 自动销毁的开关
this.totalCount > this.DestroyExceptTheNumber) // 对象总数大于保留的对象数目
{
this._destroy_Bool = true;
this.ObjectPool.StartCoroutine(Destroy());
}
return(true);
}
internal bool DespawnInstance(Transform xform, bool sendEventMessage)
{
if (this.logMessages)
{
UnityEngine.Debug.Log(string.Format("SpawnPool {0} ({1}): Despawning '{2}'", this.spawnPool.poolName, this.prefab.name, xform.name));
}
this._spawned.Remove(xform);
this.spawnPool.NextDisableTr = xform;
if (sendEventMessage)
{
xform.gameObject.BroadcastMessage("OnDespawned", this.spawnPool, SendMessageOptions.DontRequireReceiver);
}
if (this.spawnPool.DelayNextDisable)
{
this.spawnPool.DelayNextDisable = false;
this.spawnPool.StartCoroutine(this.DelayedlDespawned(xform));
}
else
{
this._despawned.Add(xform);
PoolManagerUtils.SetActive(xform.gameObject, false);
}
if (!this.cullingActive && this.cullDespawned && this.totalCount > this.cullAbove)
{
this.cullingActive = true;
this.spawnPool.StartCoroutine(this.CullDespawned());
}
return(true);
}
/// <summary>
/// 用对象池添加一个现存的实例到预制池
/// Used by a SpawnPool to add an existing instance to this PrefabPool.
/// This is used during game start to pool objects which are not
/// instantiated at runtime
/// </summary>
/// <param name="inst">The instance to add</param>
/// <param name="inactive">True to despawn on add</param>
internal void AddInstanceNotInPool(Transform inst, bool inactive)
{
//给实例的名字加上数字
this.nameInstance(inst);
if (inactive)
{
PoolManagerUtils.SetActive(inst.gameObject, false);
this._inactive_List.Add(inst);
}
else
{
this._active_List.Add(inst);
}
}
// ParticleSystem (Shuriken) Version...
private IEnumerator ListenForEmitDespawn(ParticleSystem emitter)
{
// Wait for the delay time to complete
// Waiting the extra frame seems to be more stable and means at least one
// frame will always pass
yield return(new WaitForSeconds(emitter.startDelay + 0.25f));
// Do nothing until all particles die or the safecount hits a max value
float safetimer = 0; // Just in case! See Spawn() for more info
while (emitter.IsAlive(true))
{
if (!PoolManagerUtils.activeInHierarchy(emitter.gameObject))
{
emitter.Clear(true);
yield break; // Do nothing, already despawned. Quit.
}
safetimer += Time.deltaTime;
if (safetimer > this.maxParticleDespawnTime)
{
Debug.LogWarning
(
string.Format
(
"SpawnPool {0}: " +
"Timed out while listening for all particles to die. " +
"Waited for {1}sec.",
this.poolName,
this.maxParticleDespawnTime
)
);
}
yield return(null);
}
// Turn off emit before despawning
//emitter.Clear(true);
this.Despawn(emitter.transform);
}
/// <summary>
///<para>若开启了先进先出，则在没有隐藏对象的情况下，把第一个对象隐藏，再显示出来</para>
/// </summary>
/// <returns>
/// The new instance's Transform.
///
/// If the Limit option was used for the PrefabPool associated with the
/// passed prefab, then this method will return null if the limit is
/// reached.
/// </returns>
internal Transform ActiveInstance(Vector3 pos, Quaternion rot)
{
//开启了限制实例数量和先进先出，而且显示实例数量大于等于限制数量
if (this.limitInstances &&
this.limitFIFO &&
this._active_List.Count >= this.limitAmount)
{
Transform firstIn = this._active_List[0];
if (this.LogMessages)
{
Debug.Log(string.Format
(
"SpawnPool {0} ({1}): " +
"限制完成，隐藏 {2}...",
this.ObjectPool.poolName,
this.prefab.name,
firstIn
));
}
//隐藏实例
this.InactiveInstance(firstIn);
//从显示数组中移除
this.ObjectPool._active_List.Remove(firstIn);
}
Transform inst;
// 如果没有隐藏的实例，创建一个新的
if (this._inactive_List.Count == 0)
{
inst = this.ActiveNew(pos, rot);
}
else
{
//从隐藏数组移到显示数组
inst = this._inactive_List[0];
this._inactive_List.RemoveAt(0);
this._active_List.Add(inst);
if (inst == null)
{
var msg = "确保没有手动删除一个隐藏对象";
throw new MissingReferenceException(msg);
}
if (this.LogMessages)
{
Debug.Log(string.Format("SpawnPool {0} ({1}): 显示 '{2}'.",
this.ObjectPool.poolName,
this.prefab.name,
inst.name));
}
inst.position = pos;
inst.rotation = rot;
PoolManagerUtils.SetActive(inst.gameObject, true);
}
return(inst);
}