/// <summary>
/// 读取数据。
/// </summary>
/// <param name="dataAssetName">内容资源名称。</param>
/// <param name="priority">加载数据资源的优先级。</param>
/// <param name="userData">用户自定义数据。</param>
public void ReadData(string dataAssetName, int priority, object userData)
{
if (m_ResourceManager == null)
{
throw new GameFrameworkException("You must set resource manager first.");
}
if (m_DataProviderHelper == null)
{
throw new GameFrameworkException("You must set data provider helper first.");
}
HasAssetResult result = m_ResourceManager.HasAsset(dataAssetName);
switch (result)
{
case HasAssetResult.AssetOnDisk:
case HasAssetResult.AssetOnFileSystem:
m_ResourceManager.LoadAsset(dataAssetName, priority, m_LoadAssetCallbacks, userData);
break;
case HasAssetResult.BinaryOnDisk:
m_ResourceManager.LoadBinary(dataAssetName, m_LoadBinaryCallbacks, userData);
break;
case HasAssetResult.BinaryOnFileSystem:
int dataLength = m_ResourceManager.GetBinaryLength(dataAssetName);
EnsureCachedBytesSize(dataLength);
if (dataLength != m_ResourceManager.LoadBinaryFromFileSystem(dataAssetName, s_CachedBytes))
{
throw new GameFrameworkException(Utility.Text.Format("Load binary '{0}' from file system with internal error.", dataAssetName));
}
try
{
if (!m_DataProviderHelper.ReadData(m_Owner, dataAssetName, s_CachedBytes, 0, dataLength, userData))
{
throw new GameFrameworkException(Utility.Text.Format("Load data failure in data provider helper, data asset name '{0}'.", dataAssetName));
}
if (m_ReadDataSuccessEventHandler != null)
{
ReadDataSuccessEventArgs loadDataSuccessEventArgs = ReadDataSuccessEventArgs.Create(dataAssetName, 0f, userData);
m_ReadDataSuccessEventHandler(this, loadDataSuccessEventArgs);
ReferencePool.Release(loadDataSuccessEventArgs);
}
}
catch (Exception exception)
{
if (m_ReadDataFailureEventHandler != null)
{
ReadDataFailureEventArgs loadDataFailureEventArgs = ReadDataFailureEventArgs.Create(dataAssetName, exception.ToString(), userData);
m_ReadDataFailureEventHandler(this, loadDataFailureEventArgs);
ReferencePool.Release(loadDataFailureEventArgs);
return;
}
throw;
}
break;
default:
throw new GameFrameworkException(Utility.Text.Format("Data asset '{0}' is '{1}'.", dataAssetName, result.ToString()));
}
}
