public IEnumerable <Point> Generate(RoadGenerationTwoPoints model)
{
var grid = new Grid(model.Fields.GetLength(0), model.Fields.GetLength(1), 1.0f);
for (int i = 0; i < model.Fields.GetLength(0); i++)
{
for (int j = 0; j < model.Fields.GetLength(1); j++)
{
if (!model.Fields[i, j].InSettlement ||
(model.Fields[i, j].IsBlocked.HasValue && model.Fields[i, j].IsBlocked.Value))
{
grid.BlockCell(new Position(i, j));
}
}
}
var positions = grid.GetPath(
new Position(model.Start.X, model.Start.Y), new Position(model.End.X, model.End.Y),
MovementPatterns.LateralOnly);
return(positions.Select(p => new Point(p.X, p.Y)));
}
public IEnumerable <Point> GenerateStraight(RoadGenerationTwoPoints model)
{
var(minX, maxX) = model.Start.X < model.End.X
? (model.Start.X, model.End.X)
: (model.End.X, model.Start.X);
var(minY, maxY) = model.Start.Y < model.End.Y
? (model.Start.Y, model.End.Y)
: (model.End.Y, model.Start.Y);
var positions = new List <Point>();
if (model.Start.X.Equals(model.End.X))
{
for (int i = minY; i <= maxY; i++)
{
positions.Add(new Point(model.Start.X, i));
}
}
else
{
for (int i = minX; i <= maxX; i++)
{
positions.Add(new Point(i, model.Start.Y));
}
}
var toRemove = positions
.OrderByDescending(p => p.DistanceTo(model.Start))
.TakeWhile(s => !model.Fields[s.X, s.Y].InSettlement ||
(model.Fields[s.X, s.Y].IsBlocked.HasValue &&
model.Fields[s.X, s.Y].IsBlocked.Value))
.ToList();
toRemove.ForEach(r => positions.Remove(r));
return(positions);
}
