public override void Draw(object input, string name, PropertyInfo property, Action <object> setValueCallback)
{
string value = (string)input ?? "";
string path = AssetDatabase.GUIDToAssetPath(value);
UnityEngine.Object asset = AssetDatabase.LoadMainAssetAtPath(path);
object[] attr = property.GetCustomAttributes(typeof(AssetReferenceAttribute), true);
AssetReferenceAttribute drawerAttr = attr[0] as AssetReferenceAttribute;
if (drawerAttr != null)
{
switch (drawerAttr.AssetType)
{
case AssetReferenceAttribute.AssetReferenceType.Material:
asset = EditorGUILayout.ObjectField(name, asset, typeof(Material), false);
break;
case AssetReferenceAttribute.AssetReferenceType.AudioClip:
asset = EditorGUILayout.ObjectField(name, asset, typeof(AudioClip), false);
break;
case AssetReferenceAttribute.AssetReferenceType.GameObject:
asset = EditorGUILayout.ObjectField(name, asset, typeof(GameObject), false);
break;
case AssetReferenceAttribute.AssetReferenceType.Texture:
asset = EditorGUILayout.ObjectField(name, asset, typeof(Texture), false);
break;
case AssetReferenceAttribute.AssetReferenceType.Animation:
asset = EditorGUILayout.ObjectField(name, asset, typeof(AnimationClip), false);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
path = AssetDatabase.GetAssetPath(asset);
value = AssetDatabase.AssetPathToGUID(path);
setValueCallback(value);
}
private static void ExtractBundleReference(string inDataBundleName, object target,
ref Dictionary <string, Bundle> dataBundles)
{
PropertyInfo[] properties = target.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
IEnumerable <PropertyInfo> referenceProperties = from property in properties
where property.GetCustomAttributes(typeof(AssetReferenceAttribute), true).Length > 0
select property;
foreach (PropertyInfo property in referenceProperties)
{
if (property.PropertyType == typeof(string))
{
string guid = property.GetValue(target, null) as string;
if (string.IsNullOrEmpty(guid))
{
continue;
}
string path = AssetDatabase.GUIDToAssetPath(guid);
if (string.IsNullOrEmpty(path))
{
continue;
}
AssetReferenceAttribute attribute =
property.GetCustomAttributes(typeof(AssetReferenceAttribute), true)[0] as AssetReferenceAttribute;
bool customBundle = !string.IsNullOrEmpty(attribute?.BundleOverride);
Bundle currentBundle;
if (!customBundle)
{
currentBundle = dataBundles[inDataBundleName];
}
else
{
if (dataBundles.ContainsKey(attribute.BundleOverride))
{
currentBundle = dataBundles[attribute.BundleOverride];
}
else
{
dataBundles[attribute.BundleOverride] =
currentBundle = new Bundle(attribute.BundleOverride, new List <string>(), new List <string>());
}
// make the parent bundle depend on this custom bundle
dataBundles[inDataBundleName].Dependecies.Add(currentBundle.Name.ToLower());
}
currentBundle.Guids.Add(guid);
currentBundle.AssetPaths.Add(path);
}
}
foreach (PropertyInfo property in properties)
{
if (property.PropertyType.IsPrimitive)
{
continue;
}
object subTarget = property.GetValue(target, null);
if (subTarget == null)
{
continue;
}
if (subTarget.GetType().IsArray)
{
Array array = (Array)subTarget;
for (int i = 0; i < array.Length; i++)
{
ExtractBundleReference(inDataBundleName, array.GetValue(i), ref dataBundles);
}
}
else
{
ExtractBundleReference(inDataBundleName, subTarget, ref dataBundles);
}
}
}