public void CalculateResult_FindMatchingOffcut_Returns_Null_When_No_Suitable_Offcuts()
{
var result = new CalculatorResult(new Tile(12, 12));
result.Offcuts.Add(new Tile(2, 10));
result.Offcuts.Add(new Tile(6, 1));
var offcut = result.FindMatchingOffcut(new Area(3, 5));
Assert.IsNull(offcut);
}
public void CalculateResult_FindMatchingOffcut_Can_Return_Suitable_Rotated_Offcut()
{
var result = new CalculatorResult(new Tile(12, 12));
result.Offcuts.Add(new Tile(2, 10));
result.Offcuts.Add(new Tile(6, 3));
var offcut = result.FindMatchingOffcut(new Area(3, 5));
Assert.IsNotNull(offcut);
Assert.AreEqual(3, offcut.Width);
Assert.AreEqual(6, offcut.Length);
}
/// <summary>
/// Calculates the number of whole tiles used, along with the number of cuts
/// and the total waste percentage.
/// </summary>
/// <returns>An instance of CalculatorResult.</returns>
public CalculatorResult Calculate(Room room, Tile tile, double groutThickness)
{
Room = room;
Tile = tile;
GroutThickness = groutThickness;
CalculatorResult result = new CalculatorResult(Tile);
bool roomComplete = false;
Point origin = new Point(0, 0);
while (roomComplete == false)
{
// can a whole tile be placed?
Point destination = new Point(origin.X + Tile.Width, origin.Y + Tile.Length);
if (destination.X <= Room.Width & destination.Y <= Room.Length)
{
result.WholeTilesUsed++;
origin.X += Tile.Width + GroutThickness;
}
// there is not enough room in width, a tile has to be cut
else if (destination.X > Room.Width & destination.Y <= Room.Length)
{
Area availableArea = new Area(Room.Width - origin.X, Tile.Length);
// look for an offcut
var foundTile = result.FindMatchingOffcut(availableArea);
if (foundTile == null)
{
foundTile = Tile;
result.WholeTilesUsed++;
}
foundTile.CutPartialTile(availableArea).ForEach(o => result.Offcuts.Add(o));
origin.X = 0;
origin.Y += Tile.Length + GroutThickness;
}
// there is not enough room in length, a tile has to be cut
else if (destination.X <= Room.Width & destination.Y > Room.Length)
{
Area availableArea = new Area(Tile.Width, Room.Length - origin.Y);
// look for an offcut
var foundTile = result.FindMatchingOffcut(availableArea);
if (foundTile == null)
{
foundTile = Tile;
result.WholeTilesUsed++;
}
foundTile.CutPartialTile(availableArea).ForEach(o => result.Offcuts.Add(o));
origin.X += Tile.Width + GroutThickness;
}
// there is not enough room in length or width, a tile has to be cut twice
else if (destination.X > Room.Width & destination.Y > Room.Length)
{
Area availableArea = new Area(Room.Width - origin.X, Room.Length - origin.Y);
// look for an offcut
var foundTile = result.FindMatchingOffcut(availableArea);
if (foundTile == null)
{
foundTile = Tile;
result.WholeTilesUsed++;
}
foundTile.CutPartialTile(availableArea).ForEach(o => result.Offcuts.Add(o));
origin.X += Tile.Width + GroutThickness;
origin.Y += Tile.Length + GroutThickness;
}
if (destination.X >= Room.Width & destination.Y >= Room.Length)
{
roomComplete = true;
}
}
return result;
}
