convertRelativeToAbsolute function

List<int> convertRelativeToAbsolute(List<int> relativeIndices)

Converts a list of relative indices to absolute indices.

The first index remains the same. Each subsequent index is the sum of the previous absolute index and the next relative index.

Implementation

List<int> convertRelativeToAbsolute(List<int> relativeIndices) {
  if (relativeIndices.isEmpty) {
    return [];
  }

  final absoluteIndices = <int>[];
  int runningTotal = 0;

  for (final index in relativeIndices) {
    runningTotal += index;
    absoluteIndices.add(runningTotal);
  }

  return absoluteIndices;
}