public static Vector2Int GetFreeField(this IPathfinder traversibleMapSource, Vector2Int avoid, out bool valid)
{
valid = false;
Vector2Int result = Vector2Int.left;
if (traversibleMapSource.MapExists)
{
Vector2Int[] traversibleFields = traversibleMapSource.GetTraversibleFields();
if (traversibleFields.Length > 1 || (traversibleFields.Length == 1 && !traversibleFields[0].Equals(avoid)))
{
int index = -1;
do
{
index = Random.Range(0, traversibleFields.Length);
}while (traversibleFields[index].Equals(avoid));
result = traversibleFields[index];
valid = true;
}
}
return(result);
}