Tiny Roguelike

tinyrogue.rb

# tinyrogue.rb
# litonico
# This software is licensed to the public domain

require 'io/console'

CLEARALL = "\x1b[2J\x1b[1;1H"

BACKGROUND_MAP = <<-MAP
........
........
........
........
........
MAP
MAP_WIDTH = 8
TRAILING_NEWLINE = 1

$player_pos = [3, 2]

def left
  $player_pos[0] -= 1
end

def right
  $player_pos[0] += 1
end

def up
  $player_pos[1] -= 1
end

def down
  $player_pos[1] += 1
end

puts "wasd to move, q to quit"

loop do
    input = STDIN.getch

    print CLEARALL

    exit  if input == "q"
    left  if input == "a"
    right if input == "d"
    up    if input == "w"
    down  if input == "s"

    player_coord = $player_pos[0] + $player_pos[1]*(MAP_WIDTH+TRAILING_NEWLINE)
    player_map = String.new BACKGROUND_MAP
    player_map[player_coord] = "@"
    puts player_map
end