/// <summary>
/// Create split from the source and the split up rectangles, spreading the neighbours
/// of the split over its children
/// </summary>
/// <param name="source"></param>
/// <param name="rectangles"></param>
/// <returns></returns>
public SplitRect[] CreateSplits(SplitRect source, RectInt[] rectangles)
{
var result = new SplitRect[rectangles.Length];
for (var i = 0; i < rectangles.Length; ++i)
{
result[i] = new SplitRect()
{
_rect = rectangles[i],
Neighbours = new HashSet <SplitRect>(source.Neighbours.Where(
(neighbour) => !RectUtil.AreDisconnected(rectangles[i], neighbour._rect)))
};
foreach (var neighbour in result[i].Neighbours)
{
neighbour.Neighbours.Add(result[i]);
}
}
for (var i = 0; i < result.Length; ++i)
{
for (var j = i + 1; j < result.Length; ++j)
{
result[i].Neighbours.Add(result[j]);
result[j].Neighbours.Add(result[i]);
}
}
return(result);
}
public void ShouldReturnFalseWhenCallingDisconnectedOnTheSameRect()
{
// trivial test two rects that are the same
var r1 = new RectInt(Vector2Int.zero, Vector2Int.one * 2);
var r2 = new RectInt(Vector2Int.zero, Vector2Int.one * 2);
Assert.IsFalse(RectUtil.AreDisconnected(r1, r2));
Assert.IsFalse(RectUtil.AreDisconnected(r1, r1));
Assert.IsFalse(RectUtil.AreDisconnected(r2, r2));
}
public void ShouldReturnTrueApart()
{
var r1 = new RectInt(Vector2Int.zero, Vector2Int.one * 2);
var r2 = new RectInt(Vector2Int.left * 3, Vector2Int.one * 2);
var r3 = new RectInt(Vector2Int.right * 3, Vector2Int.one * 2);
var r4 = new RectInt(Vector2Int.up * 3, Vector2Int.one * 2);
var r5 = new RectInt(Vector2Int.down * 3, Vector2Int.one * 2);
Assert.IsTrue(RectUtil.AreDisconnected(r1, r2));
Assert.IsTrue(RectUtil.AreDisconnected(r1, r3));
Assert.IsTrue(RectUtil.AreDisconnected(r1, r4));
Assert.IsTrue(RectUtil.AreDisconnected(r1, r5));
}
public void ShouldReturnFalseWhenRectsAreHalfTouching()
{
var r1 = new RectInt(Vector2Int.zero, Vector2Int.one * 2);
var r2 = new RectInt(Vector2Int.right * 2 + Vector2Int.up, Vector2Int.one * 2);
var r3 = new RectInt(Vector2Int.left * 2 + Vector2Int.down, Vector2Int.one * 2);
var r4 = new RectInt(Vector2Int.up * 2 + Vector2Int.right, Vector2Int.one * 2);
var r5 = new RectInt(Vector2Int.down * 2 + Vector2Int.left, Vector2Int.one * 2);
Assert.IsFalse(RectUtil.AreDisconnected(r1, r2));
Assert.IsFalse(RectUtil.AreDisconnected(r1, r3));
Assert.IsFalse(RectUtil.AreDisconnected(r1, r4));
Assert.IsFalse(RectUtil.AreDisconnected(r1, r5));
}
