private static List <Tools.Point> GetPath(string line)
{
var path = new List <Tools.Point>();
var instructions = line.Split(",");
Tools.Point refPoint = new Tools.Point(0, 0);
foreach (var item in instructions)
{
path.AddRange(GetPoints(item, refPoint));
refPoint = path.Last();
}
return(path);
}
private static List <Tools.Point> GetPoints(string instruction, Tools.Point refPoint)
{
var direction = instruction[0];
var steps = Int32.Parse(instruction.Substring(1));
var res = new List <Tools.Point>();
switch (direction)
{
case 'R':
for (int i = 1; i <= steps; i++)
{
var newPoint = new Tools.Point(refPoint.X + i, refPoint.Y);
res.Add(newPoint);
}
break;
case 'L':
for (int i = 1; i <= steps; i++)
{
var newPoint = new Tools.Point(refPoint.X - i, refPoint.Y);
res.Add(newPoint);
}
break;
case 'U':
for (int i = 1; i <= steps; i++)
{
var newPoint = new Tools.Point(refPoint.X, refPoint.Y + i);
res.Add(newPoint);
}
break;
case 'D':
for (int i = 1; i <= steps; i++)
{
var newPoint = new Tools.Point(refPoint.X, refPoint.Y - i);
res.Add(newPoint);
}
break;
}
return(res);
}