Drakor Direction patch

let compass = ['North', 'East', 'South', 'West'];
function calculateDirections(current, ending) {
  let queue = [];
  let reversePath = [];
  let step = {};
  step[current] = [];
  queue.push(current);
  while (queue.length > 0 && !pathFound) {
    current = queue.shift();
    for (let index in compass) {
      let neighbour = mapNodes[current][compass[index]];
      if (neighbour.length > 0 && !step[neighbour]) {
        step[neighbour] = [compass[index], current];
        if (neighbour == ending) {
          pathFound = true;
          break;
        }
        queue.push(neighbour);
      }
    }
  }
  if (pathFound) {
    current = ending;
    let currentStep;
    while ((currentStep = step[current]) && currentStep.length > 0) {
      let previous = currentStep[1];
      currentStep[1] = current;
      reversePath.push(currentStep);
      current = previous;
    }
    while (reversePath.length > 0) {
      currentPath.push(reversePath.pop());
    }
  }
}