public bool IsValidPoint(BoardPoint p)
{
return(p.X >= 0 &&
p.X < Width &&
p.Y >= 0 &&
p.Y < Height);
}
public void Set(BoardPoint p, GameTileState state)
{
if (tiles[p.X, p.Y].State != state)
{
tiles[p.X, p.Y].State = state;
if (fireUpdateEvents)
{
OnBoardUpdate(this, new EventArgs());
}
}
}
public bool IsBadPoint(BoardPoint p)
{
if (!IsValidPoint(p))
{
return(false);
}
var state = Get(p);
return(
state == GameTileState.Obstacle ||
state == GameTileState.WormBody ||
state == GameTileState.WormHead);
}
public void SlitherTo(BoardPoint pos, ref GameBoard board)
{
segments.AddFirst(new Segment()
{
Point = pos
});
if (segments.Count > MaxLength)
{
board.Set(segments.Last.Value.Point, GameTileState.Empty);
segments.RemoveLast();
}
board.Set(pos, GameTileState.WormHead);
if (segments.Count > 1)
{
board.Set(segments.First.Next.Value.Point, GameTileState.WormBody);
}
}
public void Clear(BoardPoint p)
{
Set(p, GameTileState.Empty);
}
public GameTileState Get(BoardPoint p)
{
return(tiles[p.X, p.Y].State);
}
