public SnappableLine CreateLine(Point start, Point end, int gridSize)
{
var line = new SnappableLine(start, end, gridSize);
SnapLineEndIfItIsCloseToAnotherLine(line, start, end);
_lines.Add(line);
return(line);
}
private void SnapLineEndIfItIsCloseToAnotherLine(SnappableLine line, Point start, Point end)
{
foreach (var existingLine in _lines)
{
var distance = existingLine.DistanceFrom(end);
if (!IsCloseEnoughToSnap(distance))
{
continue;
}
SnapLineEndToPoint(line, start, distance.ClosestPointInLine);
return;
}
line.Move(start, end);
}
private void SnapLineEndToPoint(SnappableLine line, Point start, Point snapPoint)
{
line.Move(start, snapPoint, false);
}
public void MoveLine(SnappableLine line, Point start, Point end)
{
SnapLineEndIfItIsCloseToAnotherLine(line, start, end);
}