private PointField findClosed(LinkedList <AStarSolver <GameField> .PathNode> nodeList)
{
PointField returnList = new PointField(currentlyChecking.value);
int minX = int.MaxValue;
int maxX = int.MinValue;
int minY = int.MaxValue;
int maxY = int.MinValue;
foreach (AStarSolver <GameField> .PathNode node in nodeList)
{
if (node.X < minX)
{
minX = node.X;
}
if (node.X > maxX)
{
maxX = node.X;
}
if (node.Y < minY)
{
minY = node.Y;
}
if (node.Y > maxY)
{
maxY = node.Y;
}
}
int middleX = (int)Math.Ceiling(((maxX - minX) / 2f)) + minX;
int middleY = (int)Math.Ceiling(((maxY - minY) / 2f)) + minY;
//Console.WriteLine("Middle: x:[{0}] y:[{1}]", middleX, middleY);
Point current;
List <Point> toFill = new List <Point>();
List <Point> checkedItems = new List <Point>();
checkedItems.Add(new Point(currentlyChecking.x, currentlyChecking.y));
Point toAdd;
toFill.Add(new Point(middleX, middleY));
int x;
int y;
while (toFill.Count > 0)
{
current = toFill[0];
x = current.X;
y = current.Y;
if (x < minX)
{
return(null);//OOB
}
if (x > maxX)
{
return(null);//OOB
}
if (y < minY)
{
return(null);//OOB
}
if (y > maxY)
{
return(null); //OOB
}
if (this[y - 1, x] && currentField[y - 1, x] == 0)
{
toAdd = new Point(x, y - 1);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
{
toFill.Add(toAdd);
}
}
if (this[y + 1, x] && currentField[y + 1, x] == 0)
{
toAdd = new Point(x, y + 1);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
{
toFill.Add(toAdd);
}
}
if (this[y, x - 1] && currentField[y, x - 1] == 0)
{
toAdd = new Point(x - 1, y);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
{
toFill.Add(toAdd);
}
}
if (this[y, x + 1] && currentField[y, x + 1] == 0)
{
toAdd = new Point(x + 1, y);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
{
toFill.Add(toAdd);
}
}
if (getValue(current) == 0)
{
returnList.add(current);
}
checkedItems.Add(current);
toFill.RemoveAt(0);
}
return(returnList);
}
private PointField findClosed(LinkedList<AStarSolver<GameField>.PathNode> nodeList)
{
PointField returnList = new PointField(currentlyChecking.value);
int minX = int.MaxValue;
int maxX = int.MinValue;
int minY = int.MaxValue;
int maxY = int.MinValue;
foreach (AStarSolver<GameField>.PathNode node in nodeList)
{
if (node.X < minX)
minX = node.X;
if(node.X > maxX)
maxX = node.X;
if (node.Y < minY)
minY = node.Y;
if (node.Y > maxY)
maxY = node.Y;
}
int middleX = (int)Math.Ceiling(((maxX - minX) / 2f)) + minX;
int middleY = (int)Math.Ceiling(((maxY - minY) / 2f)) + minY;
//Console.WriteLine("Middle: x:[{0}] y:[{1}]", middleX, middleY);
Point current;
List<Point> toFill = new List<Point>();
List<Point> checkedItems = new List<Point>();
checkedItems.Add(new Point(currentlyChecking.x, currentlyChecking.y));
Point toAdd;
toFill.Add(new Point(middleX,middleY));
int x;
int y;
while(toFill.Count > 0)
{
current = toFill[0];
x = current.X;
y = current.Y;
if (x < minX)
return null;//OOB
if (x > maxX)
return null;//OOB
if (y < minY)
return null;//OOB
if (y > maxY)
return null; //OOB
if (this[y - 1, x] && currentField[y - 1, x] == 0)
{
toAdd = new Point(x, y - 1);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
toFill.Add(toAdd);
}
if (this[y + 1, x] && currentField[y + 1, x] == 0 )
{
toAdd = new Point(x, y + 1);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
toFill.Add(toAdd);
}
if (this[y, x - 1] && currentField[y, x - 1] == 0)
{
toAdd = new Point(x - 1, y);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
toFill.Add(toAdd);
}
if (this[y, x + 1] && currentField[y, x + 1] == 0)
{
toAdd = new Point(x + 1, y);
if (!toFill.Contains(toAdd) && !checkedItems.Contains(toAdd))
toFill.Add(toAdd);
}
if (getValue(current) == 0)
returnList.add(current);
checkedItems.Add(current);
toFill.RemoveAt(0);
}
return returnList;
}