public Sheet ParseFile(string filePath)
{
var sheet = new Sheet();
var mode = 0;
foreach (var line in ReadData(filePath))
{
if (string.IsNullOrWhiteSpace(line))
{
mode++;
continue;
}
if (mode == 0)
{
var regResult = pointRule.Match(line);
var point = new Point(Convert.ToInt32(regResult.Groups.Values.First(g => g.Name == "X").Captures[0].Value)
, Convert.ToInt32(regResult.Groups.Values.First(g => g.Name == "Y").Captures[0].Value)
);
sheet.Points.Add(point);
}
else if (mode == 1)
{
var foldResult = foldRule.Match(line);
var foldInstruction = new FoldInstruction
{
Direction = foldResult.Groups.Values.First(g => g.Name == "direction").Captures[0].Value == "x" ? FoldDirection.Vertical : FoldDirection.Horizontal,
Position = Convert.ToInt32(foldResult.Groups.Values.First(g => g.Name == "position").Captures[0].Value)
};
sheet.Instruction.Add(foldInstruction);
}
}
return(sheet);
}
static Point PositionAfterFold(Point point, FoldInstruction instruction)
{
if (instruction.Direction == FoldDirection.Horizontal)
{
var y = point.Y > instruction.Position ? 2 * instruction.Position - point.Y : point.Y;
return(new Point(point.X, y));
}
var x = point.X > instruction.Position ? 2 * instruction.Position - point.X : point.X;
return(new Point(x, point.Y));
}