/**
* Grow the wall one step
*
* @return bool - success of operation, true if wall grown, false if not
*/
public bool Grow(System.Random rnd)
{
if (l.CountWallsConnectedToJoint(x, y) > 1)
{
// preventing T-juncture
return(false);
}
List <Wall> walls = new List <Wall>(3);
// check all walls from this joint:
// West
if (l.CountWallsConnectedToJoint(x - 1, y) == 0)
{
walls.Add(new Wall(x, y, true, true));
}
// North
if (l.CountWallsConnectedToJoint(x, y + 1) == 0)
{
walls.Add(new Wall(x, y + 1, false, false));
}
// East
if (l.CountWallsConnectedToJoint(x + 1, y) == 0)
{
walls.Add(new Wall(x + 1, y, true, false));
}
// South
if (l.CountWallsConnectedToJoint(x, y - 1) == 0)
{
walls.Add(new Wall(x, y, false, true));
}
// choose a path to grow
if (walls.Count == 0)
{
return(false);
}
Wall growTo = walls[rnd.Next(0, walls.Count)];
// advance this head to a new position
if (growTo.top)
{
// growTo.x -= (growTo.nextCell ? 1 : 0);
l[growTo.x, growTo.y].top = false;
}
else
{
// growTo.y -= (growTo.nextCell ? 1 : 0);
l[growTo.x, growTo.y].right = false;
}
x = growTo.x + (growTo.nextCell && growTo.top ? -1 : 0);
y = growTo.y + (growTo.nextCell && !growTo.top ? -1 : 0);
return(true);
}
private void FillLabyrinthBlanksWithSnakes()
{
for (int i = 1; i < width; i++)
{
for (int j = 1; j < height; j++)
{
if (layout.CountWallsConnectedToJoint(i, j) == 0)
{
Snakewallhead snake = new Snakewallhead(i, j, layout);
snake.AutoGrow(rnd);
}
}
}
}