void GenerateHall(RectI prevRoom, RectI curRoom, List <LineI> halls)
{
var rand1 = prevRoom.GetRandPoint();
var rand2 = curRoom.GetRandPoint();
var corner = new Vector2(rand1.x, rand2.y);
if (Random.Range(0, 100) > 50)
{
corner = new Vector2(rand2.x, rand1.y);
}
halls.Add(new LineI(rand1, corner));
halls.Add(new LineI(corner, rand2));
}