public override void Prepare(BuildTarget target,
Model.NodeData node,
IEnumerable <PerformGraph.AssetGroups> incoming,
IEnumerable <Model.ConnectionData> connectionsToOutput,
PerformGraph.Output Output)
{
if (m_configureImporterFor != null)
{
CreateConfigurator(node, m_configureImporterFor);
}
if (string.IsNullOrEmpty(m_referenceAssetGuid))
{
// give a try first in sampling file
var a = AssetReferenceUtility.FindFirstIncomingAssetReference(incoming);
if (a != null)
{
CreateConfigurator(node, a.importerType);
}
}
ValidateInputSetting(node, target, incoming);
// ImportSettings does not add, filter or change structure of group, so just pass given group of assets
if (Output != null)
{
var dst = (connectionsToOutput == null || !connectionsToOutput.Any())?
null : connectionsToOutput.First();
if (incoming != null)
{
foreach (var ag in incoming)
{
Output(dst, ag.assetGroups);
}
}
else
{
Output(dst, new Dictionary <string, List <AssetReference> >());
}
}
}
private void ValidateInputSetting(
Model.NodeData node,
BuildTarget target,
IEnumerable <PerformGraph.AssetGroups> incoming)
{
var firstAsset = AssetReferenceUtility.FindFirstIncomingAssetReference(incoming);
Type firstAssetImporterType = null;
// check if first Asset has importer
if (firstAsset != null)
{
firstAssetImporterType = firstAsset.importerType;
if (firstAssetImporterType == null)
{
throw new NodeException(string.Format("Incoming asset '{0}' does not have importer. (type={1}) Perhaps you want to use Modifier instead?",
firstAsset.fileNameAndExtension, firstAsset.assetType.FullName),
"Add ScriptedImporter for this type of asset or replace this node to use Modifier.",
node);
}
}
// check if all incoming assets are the same asset types
if (firstAssetImporterType != null)
{
foreach (var ag in incoming)
{
foreach (var assets in ag.assetGroups.Values)
{
foreach (var a in assets)
{
if (a.importerType != firstAssetImporterType)
{
throw new NodeException(
string.Format("ImportSetting expect {0}, but different type of incoming asset is found({1}, {2})", firstAssetImporterType.FullName, a.fileNameAndExtension, a.importerType),
string.Format("Remove {0} from node input, or change this importer type.", a.fileName),
node);
}
}
}
}
}
// check if there is a valid reference asset
if (!string.IsNullOrEmpty(m_referenceAssetGuid))
{
var referenceImporter = GetReferenceAssetImporter(node, false);
if (referenceImporter == null)
{
throw new NodeException("Reference importer not found.",
"Configure reference importer from inspector", node);
}
}
// check if there is a valid custom setting asset
if (m_useCustomSettingAsset && CustomSettingAsset == null)
{
throw new NodeException("You must select custom setting asset.",
"Select custom setting asset.", node);
}
// check if reference asset type matches with incoming asset types
if (firstAssetImporterType != null)
{
Type targetType = GetReferenceAssetImporter(node, false).GetType();
if (targetType != firstAssetImporterType)
{
throw new NodeException(
string.Format("Incoming asset type is does not match with this ImportSetting (Expected type:{0}, Incoming type:{1}).", targetType.FullName, firstAssetImporterType.FullName),
string.Format("Remove {0} from incoming assets.", firstAsset.fileName), node);
}
}
// check if there is valid configurator for this asset importer
var importer = GetReferenceAssetImporter(node, true);
if (importer != null)
{
var configuratorType = ImporterConfiguratorUtility.GetConfiguratorTypeFor(importer.GetType());
if (configuratorType == null)
{
throw new NodeException(
string.Format("Configurator for {0} not found.", importer.GetType().FullName),
string.Format("Add CustomAssetImporterConfigurator."),
node);
}
var c = m_configuratorInstance.Get <IAssetImporterConfigurator> (target);
if (c == null)
{
throw new NodeException("Failed to get configurator for " + importer.GetType().FullName,
"You may need to reset this node.", node);
}
}
}