Randomize next floor

elevator.js

 		// returns the closest floor from that list in the given
 		// direction that is not part of the ignored floors list. Ties
 		// are broken by even/oddness of the current floor.
+		// TODO: fix direction shadowing/usage
 		function getClosestFloor(currentFloor, floorList, ignoredFloors = new Set(), direction = IDLE) {
 			const isEven = (currentFloor % 2 == 0);
 
 					closestFloor = floorNum;
 					distance = newDistance;
 				} else if (newDistance == distance && !(ignoredFloors.has(floorNum))) {
-					if (isEven && direction == UP) {
+					if ((isEven && direction == UP) ||
+					    (!isEven && direction == DOWN) ||
+					    (direction == IDLE && Math.random() < 0.5)) {
 						closestFloor = floorNum;
-					} else if (!isEven && direction == DOWN) {
-						closestFloor = floorNum;
-					}
+						}
 				}
 			});