adventofcode/2019/day18/main.go

package main

import (
	"errors"

	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
)

var maxX, maxY int
var vault map[helpers.Coordinate]byte
var keys map[helpers.Coordinate]byte
var doors map[helpers.Coordinate]byte

func main() {
	file := "input"
	if helpers.GetArgNumber(1) != "" {
		file = helpers.GetArgNumber(1)
	}
	v := NewVault(file)
	v.Print()
}

func isDoor(b byte) bool {
	return 'A' <= b && b <= 'Z'
}
func isKey(b byte) bool {
	return 'a' <= b && b <= 'z'
}

func keyToDoor(b byte) byte {
	return (b - 'a') + 'A'
}

func doorToKey(b byte) byte {
	return (b - 'A') + 'a'
}