require 'curses'
Curses.init_screen
Curses.stdscr.keypad true
maze = Array.new

file = File.new("maze.txt","r")
while (line = file.gets)
  maze.push line.chomp
end
xcoordinate = 2
ycoordinate = 2
monsterxcoord = 22
monsterycoord = 39

loop do
  case Curses.getch
  when ?w
    if (maze[ycoordinate - 1][xcoordinate] != "*")
      maze[ycoordinate - 1][xcoordinate] = "@"
      maze[ycoordinate][xcoordinate] = "-"
      ycoordinate = ycoordinate - 1
    end
    when ?s
    if (maze[ycoordinate + 1][xcoordinate] != "*")
      maze[ycoordinate + 1][xcoordinate] = "@"
      maze[ycoordinate][xcoordinate] = "-"
      ycoordinate = ycoordinate + 1
    end
    when ?a
    if (maze[ycoordinate][xcoordinate - 1] != "*")
      maze[ycoordinate][xcoordinate - 1] = "@"
      maze[ycoordinate][xcoordinate] = "-"
      xcoordinate = xcoordinate - 1
    end
    when ?d
    if (maze[ycoordinate][xcoordinate + 1] != "*")
      maze[ycoordinate][xcoordinate + 1] = "@"
      maze[ycoordinate][xcoordinate] = "-"
      xcoordinate = xcoordinate + 1
    end
    end
  Curses.clear
  Curses.refresh
  maze.each do |element|
    puts element + "\r\n"
  end
end