Solution for Advent of Code 2021 day 1 using GDScript

aoc2021-day1.gd

# Execute with:
# godot --no-window -s aoc2021-day1.gd

extends SceneTree

func read_ints(file: String) -> Array:
  var ints = []
  var f = File.new()
  f.open(file, File.READ)
  if f.is_open():
    while not f.eof_reached():
      ints.append(int(f.get_line()))
  return ints

func count_increments(data: Array) -> int:
  var count = 0
  for i in len(data) - 1:
    if data[i] < data[i + 1]:
      count += 1
  return count

func merge_window(data: Array, width: int) -> Array:
  var merged = []
  for i in len(data) - width + 1:
    var sum = 0
    for j in range(width):
      sum += data[i + j]
      merged.append(sum)
  return merged

func _init() -> void:
  var data_sample: Array = read_ints("./data/sample-1.txt")
  var data_input: Array = read_ints("./data/input-1.txt")

  print("Solution 1 (sample): %d" % count_increments(data_sample))
  print("Solution 1 (input): %d" % count_increments(data_input))

  print("Solution 2 (sample): %d" % count_increments(merge_window(data_sample, 3)))
  print("Solution 2 (input): %d" % count_increments(merge_window(data_input, 3)))

  quit()