public static int GetRepresentedArrayIndex(this PropertyDrawer drawer, SerializedProperty property)
{
if (!drawer.RepresentAnArray())
{
return(-1);
}
string propertyPath = property.propertyPath;
int startIndex = propertyPath.Length - 1;
int length = 0;
while (propertyPath[startIndex - 1] != '[')
{
startIndex--;
length++;
}
if (!int.TryParse(propertyPath.Substring(startIndex, length), out int ret))
{
return(-1);
}
else
{
return(ret);
}
}