/// <summary>
/// 両端が繋がった長方形の盤面を作成します.
/// </summary>
/// <param name="height">盤面の縦幅</param>
/// <param name="width">盤面の横幅</param>
/// <param name="initialStateSelector">座標(h,w)の初期状態(生:true, 死:false)を指定する関数</param>
/// <returns></returns>
public static LifeGameBoard CreateLoopBoard(int h, int w, Func <int, int, bool> initialStateSelector)
{
var board = new LifeGameCell[h][];
foreach (var i in Enumerable.Range(0, h))
{
board[i] = new LifeGameCell[w];
foreach (var k in Enumerable.Range(0, w))
{
board[i][k] = LifeGameCell.Create(initialStateSelector?.Invoke(i, k) ?? false);
}
}
var empty = LifeGameCell.EmptyCell;
foreach (var i in Enumerable.Range(0, h))
{
foreach (var k in Enumerable.Range(0, w))
{
var right = board[i][(k + 1) % w];
var lowerRight = board[(i + 1) % h][(k + 1) % w];
var lower = board[(i + 1) % h][k];
var lowerLeft = board[(i + 1) % h][(k - 1 + w) % w];
board[i][k].SetAroundCells(right, lowerRight, lower, lowerLeft);
}
}
return(new LifeGameBoard(board));
}
/// <summary>
/// 長方形の盤面を作成します.
/// </summary>
/// <param name="height">盤面の縦幅</param>
/// <param name="width">盤面の横幅</param>
/// <param name="initialStateSelector">座標(h,w)の初期状態(生:true, 死:false)を指定する関数</param>
/// <returns></returns>
public static LifeGameBoard CreateBoard(int height, int width, Func <int, int, bool> initialStateSelector)
{
var board = new LifeGameCell[height][];
foreach (var i in Enumerable.Range(0, height))
{
board[i] = new LifeGameCell[width];
foreach (var k in Enumerable.Range(0, width))
{
board[i][k] = LifeGameCell.Create(initialStateSelector?.Invoke(i, k) ?? false);
}
}
var empty = LifeGameCell.EmptyCell;
foreach (var i in Enumerable.Range(0, height))
{
foreach (var k in Enumerable.Range(0, width))
{
var right = k == board[i].Length - 1 ? empty : board[i][k + 1];
var lowerRight = i == board.Length - 1 || k == board[i].Length - 1 ? empty : board[i + 1][k + 1];
var lower = i == board.Length - 1 ? empty : board[i + 1][k];
var lowerLeft = i == board.Length - 1 || k == 0 ? empty : board[i + 1][k - 1];
board[i][k].SetAroundCells(right, lowerRight, lower, lowerLeft);
}
}
return(new LifeGameBoard(board));
}
/// <summary>
/// 両端が繋がった長方形の盤面を作成します.
/// </summary>
/// <param name="height">盤面の縦幅</param>
/// <param name="width">盤面の横幅</param>
/// <returns></returns>
public static LifeGameBoard CreateLoopBoard(int height, int width)
{
var board = new LifeGameCell[height][];
foreach (var i in Enumerable.Range(0, height))
{
board[i] = new LifeGameCell[width];
foreach (var k in Enumerable.Range(0, width))
{
board[i][k] = LifeGameCell.Create(false);
}
}
var empty = LifeGameCell.EmptyCell;
foreach (var i in Enumerable.Range(0, height))
{
foreach (var k in Enumerable.Range(0, width))
{
var right = board[i][(k + 1) % width];
var lowerRight = board[(i + 1) % height][(k + 1) % width];
var lower = board[(i + 1) % height][k];
var lowerLeft = board[(i + 1) % height][(k - 1 + width) % width];
board[i][k].SetAroundCells(right, lowerRight, lower, lowerLeft);
}
}
return(new LifeGameBoard(board));
}