public IEnumerable <GemBehaviour> CollapseColumns(IEnumerable <GemBehaviour> gems)
{
var movingGems = new List <GemBehaviour>();
var columns = BoardUtils.GetColumns(gems);
foreach (var column in columns)
{
movingGems.AddRange(
CollapseColumn(column)
);
}
return(movingGems);
}
public GemBehaviour GetGem(GridIndex index)
{
return(BoardUtils.IsInBounds(index, columns, rows)
? allGems[index.GridX, index.GridY]
: null);
}