/// <summary>
/// Вернуть блоки шаблона железной дороги в модель
/// </summary>
/// <param name="template">Шаблон железной дороги</param>
/// <param name="model">Модель</param>
public static void ReturnBlocksToModel(this IRailwayTemplate template, Model model)
{
foreach (var item in template.GetRailways())
{
model.Blocks.Find(_ => _.Name == item.Name).Count++;
}
}
/// <summary>
/// Найти все пересечения блоков рельс
/// </summary>
/// <param name="template"></param>
/// <param name="includeBridges">Включая пересечения под мостами</param>
/// <returns>Список точек пересечения или пустой список</returns>
public static List <Point> FindCrosses(this IRailwayTemplate template, bool includeBridges = false)
{
var sync = new object();
var answer = new List <Point>();
var railways = template.GetRailways().ToArray();
Parallel.For(0, railways.Length, (i) =>
{
for (var j = i + 2; j < railways.Length; j++)
{
if (railways[i].IsHead() || i == 1 && j == railways.Length - 1)
{
continue;
}
if (MathFunctions.CrossPoint(
railways[i].Start, railways[i].End,
railways[j].Start, railways[j].End) is Point p)
{
if (!includeBridges)
{
var bridge =
(railways[i].Type == RailwayType.B1) ? railways[i] :
(railways[j].Type == RailwayType.B1) ? railways[j] : null;
if (bridge == null)
{
lock (sync)
{
answer.Add(p);
}
continue;
}
var center = new Point(
x: (bridge.Start.X + bridge.End.X) / 2,
y: (bridge.Start.Y + bridge.End.Y) / 2
);
if (p != center)
{
lock (sync)
{
answer.Add(p);
}
}
}
else
{
lock (sync)
{
answer.Add(p);
}
}
}
}
});
return(answer);
}