/// <summary>
/// 创建池
/// </summary>
private void expandPool()
{
int start = _startCapacityIndex;
int end = _startCapacityIndex + _initialCapacity;
for (int i = start; i < end; i++)
{
//加入验证判断，避免在极端情况下
//（1：两次申请同时发起 2：第二次申请的时候，第一次还没有扩展任何元素）时
if (_totalObjList.ContainsKey(i))
{
continue;
}
GameObject newObj = Instantiate(objPrefab) as GameObject;
newObj.AddComponent <SkillDispose>();
SkillDispose skillScript = newObj.GetComponent <SkillDispose>();
skillScript.id = i;
newObj.SetActive(false);
_avaliableIndex.Add(i);
_totalObjList.Add(i, newObj);
}
// 更新索引
_startCapacityIndex = end;
}
/// <summary>
/// 取得一个物体，返回值 1,obj代表，ID是1的物体被取到，ID可以用来归还物体的时候用到
/// </summary>
/// <returns></returns>
public KeyValuePair <int, GameObject> pickObj()
{
if (_avaliableIndex.Count == 0)
{
expandPool();
}
int id = _avaliableIndex[0];
_avaliableIndex.Remove(id);
_totalObjList[id].SetActive(true);
SkillDispose skillScript = _totalObjList[id].GetComponent <SkillDispose>();
// 重置技能时间
skillScript.time = survivalTime;
return(new KeyValuePair <int, GameObject>(id, _totalObjList[id]));
}