public static void LinkTexture(string texGuid, string arrGuid, bool isAlpha = false)
{
#if UNITY_EDITOR
string userDataTag = "TexArr_textureArray_as" + (isAlpha? "Source" : "Alpha");
UnityEditor.AssetImporter importer = AssetsExtensions.GetImporter(texGuid);
if (importer == null)
{
Debug.Log("Could not get importer for " + UnityEditor.AssetDatabase.GUIDToAssetPath(texGuid) + " to assign texture");
return;
}
string[] texData = AssetsExtensions.GetUserData(importer, userDataTag);
if (!texData.Contains(arrGuid)) //not already signed as used
{
ArrayTools.Add(ref texData, arrGuid);
AssetsExtensions.SetUserData(texGuid, userDataTag, texData, reload: false);
}
//writing hash for the newly assigned textures
string path = UnityEditor.AssetDatabase.GUIDToAssetPath(texGuid);
Texture2D tex = UnityEditor.AssetDatabase.LoadAssetAtPath <Texture2D>(path);
string texHash = tex.GetHash().ToString(); //tex.imageContentsHash.ToString();
AssetsExtensions.SetUserData(importer, "Hash", new string[] { texHash }, reload: false); //will write only if hash changed
#endif
}
public static void UnlinkTexture(string texGuid, string arrGuid, bool isAlpha = false)
{
#if UNITY_EDITOR
string userDataTag = "TexArr_textureArray_as" + (isAlpha? "Source" : "Alpha");
UnityEditor.AssetImporter importer = AssetsExtensions.GetImporter(texGuid);
if (importer == null)
{
Debug.Log("Could not get importer for " + UnityEditor.AssetDatabase.GUIDToAssetPath(texGuid) + " to unassign texture");
return;
}
string[] prevTexData = AssetsExtensions.GetUserData(importer, userDataTag);
if (prevTexData == null || prevTexData.Length == 0)
{
//Debug.Log("Previous texture has no data assigned");
return;
}
ArrayTools.RemoveAll(ref prevTexData, arrGuid);
AssetsExtensions.SetUserData(importer, userDataTag, prevTexData, reload: false);
#endif
}