@Override
public Board.Path requestPlayerMove(
Player player, Board board, Set<Location<Integer>> blockedLocations, int distance) {
this.out.printf("Enter a move of length %d.\n", distance);
this.out.printf(
"Moves are in the format UDLR, where such a move would mean go up, then down, then left, then right.\n\n");
List<Direction> moveSequence = new ArrayList<>();
String charSequence = this.scanner.next();
if (charSequence.length() != distance) {
return this.requestPlayerMove(player, board, blockedLocations, distance);
}
for (int i = 0; i < charSequence.length(); i++) {
char c = charSequence.charAt(i);
Direction dir = Direction.fromCharacter(c);
if (dir == null) {
return this.requestPlayerMove(player, board, blockedLocations, distance);
}
moveSequence.add(dir);
}
Optional<Board.Path> path =
board.directionsToPath(player.location(), moveSequence, blockedLocations);
return path.isPresent()
? path.get()
: this.requestPlayerMove(player, board, blockedLocations, distance);
}
