public void CanCheckIfContainsPoint()
{
GameObject obj = new GameObject();
HeightMap map = obj.AddComponent <HeightMap>();
map.size = Vector3Int.one * 2;
Assert.AreEqual(true, map.Contains(0, 0));
Assert.AreEqual(true, map.Contains(1, 1));
Assert.AreEqual(false, map.Contains(2, 2));
Assert.AreEqual(false, map.Contains(-1, -1));
}