public Scenario(int box, SokobanPathItem ep)
{
Box = box;
EntryPoint = ep;
PathToEntryPoint = new List <SokobanPathItem>();
BoxesOnTheWayToEntryPoint = new List <int>();
}
public SokobanPathItem GetPathItem(Position from, Position to)
{
var pathItem = new SokobanPathItem();
pathItem.Position = Convert(from);
var dx = from.X - to.X;
var dy = from.Y - to.Y;
if (dx == 0)
{
pathItem.StepsToTarget = Math.Abs(dy);
pathItem.Key = (dy < 0) ? Key.Down : Key.Up;
}
else
{
pathItem.StepsToTarget = Math.Abs(dx);
pathItem.Key = (dx < 0) ? Key.Right : Key.Left;
}
return(pathItem);
}
public void FindPathToEntryPoint(SokobanMap virtualMap)
{
PathToEntryPoint.Clear();
var boxPathFinder = new BoxPathFinder(virtualMap);
var path = boxPathFinder.FindPath(virtualMap.Convert(Box), virtualMap.Convert(EntryPoint.Position));
SokobanPathItem currentItem = null;
for (int i = 0; i < path.Length - 1; i++)
{
var item = virtualMap.GetPathItem(path[i], path[i + 1]);
if (currentItem == null || currentItem.Key != item.Key)
{
currentItem = item;
PathToEntryPoint.Add(currentItem);
}
else if (currentItem.Key == item.Key)
{
currentItem.StepsToTarget++;
}
}
}
