/**
* Copy constructor.
*/
public ConwayBoard(ConwayBoard other)
{
// Deep copy board array
board = new bool[other.board.GetLength(0),
other.board.GetLength(1)];
Array.Copy(other.board, board, other.board.Length);
}
/**
* Advances the board state by a tick, following the rules of the game.
*/
public void runTick()
{
// Create copy of the board's current state to reference while we
// update the actual board
ConwayBoard oldBoard = new ConwayBoard(this);
// Iterate over all cells in old board
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++)
{
// Count adjacent live cells
int neighborCount = 0;
// UL
if (oldBoard.cell(i - 1, j - 1))
{
++neighborCount;
}
// U
if (oldBoard.cell(i, j - 1))
{
++neighborCount;
}
// UR
if (oldBoard.cell(i + 1, j - 1))
{
++neighborCount;
}
// L
if (oldBoard.cell(i - 1, j))
{
++neighborCount;
}
// R
if (oldBoard.cell(i + 1, j))
{
++neighborCount;
}
// DL
if (oldBoard.cell(i - 1, j + 1))
{
++neighborCount;
}
// D
if (oldBoard.cell(i, j + 1))
{
++neighborCount;
}
// DR
if (oldBoard.cell(i + 1, j + 1))
{
++neighborCount;
}
if (oldBoard.cell(i, j))
{
// Live cell
// 1. Any live cell with fewer than two neighbors dies
if (neighborCount < 2)
{
setCell(i, j, false);
}
// 2. Any live cell with two or three neighbors lives on
else if (neighborCount <= 3)
{
}
// 3. Any live cell with more than three neighbors dies
else if (neighborCount > 3)
{
setCell(i, j, false);
}
}
else
{
// Dead cell
// 4. Any dead cell with three live neighbors becomes a live cell
if (neighborCount == 3)
{
setCell(i, j, true);
}
}
}
}
}
//===================================================================
// Public
//===================================================================
/**
* Constructor.
*/
public ConwayRunner(ConwayBoard board, int msPerTick)
{
this.board = board;
this.msPerTick = msPerTick;
}