public void Permissive_WallCanBeAvoidedBySecondaryChoicesButLeadsToFailure_ReturnsCorrectLine()
{
Position start = new Position(1, 1);
Position end = new Position(5, 3);
var creator = new BresenhamLineCreator();
var blockers = new[] { new Position(2, 2), new Position(3, 2), new Position(4, 2) }.ToList();
IList <Position> result = creator.GetRasterLinePermissive(start.x, start.y, end.x, end.y, position => !blockers.Contains(position), -1);
result.Should().BeEquivalentTo(new[] { new Position(1, 1), new Position(2, 1), new Position(3, 1), new Position(4, 2) },
options => options.WithStrictOrdering());
}
public void Permissive_VerticalLineBlocked_ReturnsCorrectLine()
{
Position start = new Position(1, 1);
Position end = new Position(1, 3);
var creator = new BresenhamLineCreator();
var blockers = new[] { new Position(1, 2) }.ToList();
IList <Position> result = creator.GetRasterLinePermissive(start.x, start.y, end.x, end.y, position => !blockers.Contains(position), -1);
result.Should().BeEquivalentTo(new[] { new Position(1, 1), new Position(1, 2) },
options => options.WithStrictOrdering());
}
public void Permissive_WallCanBeAvoidedBySecondaryChoices_ReturnsCorrectFullLine()
{
Position start = new Position(1, 1);
Position end = new Position(4, 3);
var creator = new BresenhamLineCreator();
Position blocker = new Position(2, 2);
IList <Position> result = creator.GetRasterLinePermissive(start.x, start.y, end.x, end.y, position => position != blocker, -1);
result.Should().BeEquivalentTo(new[] { new Position(1, 1), new Position(2, 1), new Position(3, 2), new Position(4, 3) },
options => options.WithStrictOrdering());
}