PlacedWordRectangle PlaceFirstWord(WordRectangle rectangle)
{
var position = new Point(
(Size.Width - rectangle.Size.Width) / 2,
(Size.Height - rectangle.Size.Height) / 2
);
return new PlacedWordRectangle(rectangle, position);
}
PlacedWordRectangle PlaceNextWord(WordRectangle rectangle,
IReadOnlyList<PlacedWordRectangle> alreadyPlacedWords)
{
if (rectangle.Size.Width > Size.Width || rectangle.Size.Height > Size.Height)
return null;
var triesCount = Math.Max(50, alreadyPlacedWords.Count * 2);
for (var i = 0; i < triesCount; i++)
{
var curPosition = new Point(
random.Next(0, Size.Width - rectangle.Size.Width),
random.Next(0, Size.Height - rectangle.Size.Height)
);
var curRect = new Rectangle(curPosition, rectangle.Size);
var hasIntersection = alreadyPlacedWords
.Select(placedWord => new Rectangle(placedWord.Position, placedWord.Size))
.Any(curRect.IntersectsWith);
if (!hasIntersection)
return new PlacedWordRectangle(rectangle, curPosition);
}
return null;
}
public PlacedWordRectangle(WordRectangle rectangle, Point position)
: base(rectangle)
{
Position = position;
}
static PlacedWordRectangle SwapViewCoordinates(PlacedWordRectangle rectangle)
{
var newRectangle = new WordRectangle(rectangle.Word, rectangle.Font, SwapSizeElements(rectangle.Size));
return new PlacedWordRectangle(newRectangle, SwapPointCoordinates(rectangle.Position));
}
PlacedWordRectangle PlaceNextWord(WordRectangle rectangle,
IReadOnlyList<PlacedWordRectangle> alreadyPlacedWords)
{
if (rectangle.Size.Width > Size.Width || rectangle.Size.Height > Size.Height)
return null;
var triesCount = Math.Max(50, alreadyPlacedWords.Count * 2);
PlacedWordRectangle bestRectangle = null;
double? bestRate = null;
for (var i = 0; i < triesCount; i++)
{
var placeMethod = placeMethods[random.Next(placeMethods.Length)];
var position = placeMethod(rectangle.Size, alreadyPlacedWords);
if (position == null)
continue;
var view = new PlacedWordRectangle(rectangle, position.Value);
var rate = DistanceSquareBetween(GetViewCenter(view), imageCenter);
if (bestRate == null || rate < bestRate)
{
bestRectangle = view;
bestRate = rate;
}
}
return bestRectangle;
}
public WordRectangle(WordRectangle rectangle)
{
Word = rectangle.Word;
Font = rectangle.Font;
Size = rectangle.Size;
}