public static ZhedBoard SpreadTile(ZhedBoard board, Coords coords, Func <Coords, Coords> moveFunction)
{
int tileValue = board.TileValue(coords);
if (tileValue <= 0)
{
return(board);
}
ZhedBoard newBoard = new ZhedBoard(board);
newBoard.SetTile(coords, USED_TILE);
newBoard.boardValue += 2 * tileValue;
newBoard.UpdateValueTiles(coords);
while (tileValue > 0)
{
coords = moveFunction(coords);
if (!newBoard.inbounds(coords))
{
break;
}
switch (newBoard.TileValue(coords))
{
case EMPTY_TILE: newBoard.SetTile(coords, USED_TILE); tileValue--; break;
case FINISH_TILE: newBoard.SetTile(coords, WINNER_TILE); newBoard.isOver = true; break;
default: break;
}
}
return(newBoard);
}
