public static string ShortestWay(List <CheckBox> CheckBoxesList, Grid grid)
{
StringBuilder result = new StringBuilder();
if (!CheckBoxesOperations.AtLeastTwoChecked())
{
result.Append("Make sure that you have marked exactly 2 cities!");
return(result.ToString());
}
result.Append(CheckBoxesList.First().Tag.ToString());
double totalDistance = 0;
int startingPoint = 0;
int howManyCities = CheckBoxesList.Count();
int whileCounter = howManyCities;
double[] distances = new double[howManyCities];
List <int> usedIndexes = new List <int>();
usedIndexes.Add(startingPoint);
distances[0] = 0;
while (whileCounter >= 2)
{
distances = new double[howManyCities];
for (int i = 0; i < howManyCities; i++)
{
if (usedIndexes.Contains(i))
{
continue;
}
distances[i] = DistanceBetweenTwoCity(CheckBoxesList, startingPoint, i, grid, null);
}
double secondSmaller = (from number in distances
orderby number
select number).Distinct().Skip(1).First();
int index = Array.IndexOf(distances, secondSmaller);
result.Append(" =>\n" + CheckBoxesList[index].Tag.ToString());
grid.Children.Add(LinesOpearions.DrawLineTwoPoints(CheckBoxesList, startingPoint, index));
whileCounter--;
startingPoint = index;
usedIndexes.Add(startingPoint);
totalDistance += secondSmaller;
}
totalDistance += DistanceBetweenTwoCity(CheckBoxesList, 0, startingPoint, grid, null);
totalDistance = Math.Round(totalDistance, 2);
result.Append(" =>\n" + CheckBoxesList.First().Tag.ToString());
result.Append("\n\nTotal distance: " + totalDistance + " km");
grid.Children.Add(LinesOpearions.DrawLineTwoPoints(CheckBoxesList, 0, startingPoint));
return(result.ToString());
}
public static double DistanceBetweenTwoCity(List <CheckBox> CheckBoxesList, int elemnt1, int elemnt2, Grid grid, object sender)
{
string margin1 = CheckBoxesList[elemnt1].Margin.ToString();
string margin2 = CheckBoxesList[elemnt2].Margin.ToString();
string[] str1 = margin1.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
string[] str2 = margin2.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
string size1 = CheckBoxesList[elemnt1].Name[0].ToString();
string size2 = CheckBoxesList[elemnt2].Name[0].ToString();
int add1;
int add2;
if (size1 == "s")
{
add1 = 6;
}
else if (size1 == "m")
{
add1 = 10;
}
else
{
add1 = 13;
}
if (size2 == "s")
{
add2 = 6;
}
else if (size2 == "m")
{
add2 = 10;
}
else
{
add2 = 13;
}
Point c1 = new Point(Convert.ToDouble(str1[0]) + add1, Convert.ToDouble(str1[1]) + add1);
Point c2 = new Point(Convert.ToDouble(str2[0]) + add2, Convert.ToDouble(str2[1]) + add2);
double pos1 = (c1.X - c2.X) * (c1.X - c2.X);
double pos2 = (c1.Y - c2.Y) * (c1.Y - c2.Y);
double d = Math.Sqrt(pos1 + pos2);
d = Math.Abs(d);
if (sender is Button)
{
Button btn = sender as Button;
if (btn.Name == "checkDistanceButton")
{
grid.Children.Add(LinesOpearions.DrawLineTwoPoints(CheckBoxesList, 0, 1));
}
}
return(d * 0.9);
}