How to get row and column from index?

Question

I\'m drawing a HUGE blank here.

Everything I\'ve found is about getting an index from a given row and column, but how do I get a row and a column from an in

Answer 1

Swift 4

typealias ColumnRowType = (column:Int, row:Int)

func indexToColumnRow(index:Int, columns:Int) -> ColumnRowType
{
    let columnIndex = (index % columns)
    let rowIndex = /*floor*/(index / columns)    // we just cast to an `Int`

    return ColumnRowType(columnIndex, rowIndex)
}