/// <summary>
/// To draw the path of our current sequence, we have to create a bunch of convex shapes.
/// SFML has a native way to draw lines, but they are 1px wide, and do not show up well
/// in recordings, so there's a little extra work to calculate the line.
/// </summary>
/// <param name="townSequence">The genome of the sequence we want to display</param>
/// <returns>The line visuals for the requested path</returns>
public static List <ConvexShape> GetTownSequencePath(List <int> townSequence)
{
var paths = new List <ConvexShape>();
for (int i = 1; i < townSequence.Count; i++)
{
// Get the two towns that our line will be joining
var fromTown = TownPositions[townSequence[i - 1]];
var toTown = TownPositions[townSequence[i]];
// Get the normalized vector in the direction of fromTown to toTown
var directionVector = (toTown - fromTown).Normalize();
// Now that we have the vector pointing from fromTown to toTown, we can traverse it to give our towns
// some space around them when we draw our line.
var startingPoint = fromTown + (directionVector * PathOffsetFromTown);
var endingPoint = toTown - (directionVector * PathOffsetFromTown);
// We want to fade the lines from black - grey to show the direction of the path
var lumination = Convert.ToByte((200.0 / TownPositions.Count) * (i - 1));
// Convert the points we have into a 'ConvexShape' :( damn SFML.
paths.Add(SFMLGraphicsHelper.GetLine(startingPoint, endingPoint, Linethickness, new Color(lumination, lumination, lumination)));
}
return(paths);
}
public static List <ConvexShape> GetTownSequencePath(List <int> townSequence)
{
var paths = new List <ConvexShape>();
for (int i = 1; i < townSequence.Count; i++)
{
var fromTown = TownPositions[townSequence[i - 1]];
var toTown = TownPositions[townSequence[i]];
var directionVector = (toTown - fromTown).Normalize();
var startingPoint = fromTown + (directionVector * PathOffsetFromTown);
var endingPoint = toTown - (directionVector * PathOffsetFromTown);
var lumination = Convert.ToByte((20) * (i - 1));
paths.Add(SFMLGraphicsHelper.GetLine(startingPoint, endingPoint, Linethickness, new Color(lumination, lumination, lumination)));
}
return(paths);
}
