public static List<SKSpriteSheet> getAllSpriteSheets()
{
if( !Directory.Exists( defaultSpriteSheetPath ) )
Directory.CreateDirectory( defaultSpriteSheetPath );
var sheets = new List<SKSpriteSheet>();
foreach( var file in Directory.GetFiles( defaultSpriteSheetPath, "*_sheet.asset" ) )
{
var sheet = AssetDatabase.LoadMainAssetAtPath( file ) as SKSpriteSheet;
sheets.Add( sheet );
}
return sheets;
}