move text levels to separate file, add build* to .gitignore

3 files changed, 694 insertions, 662 deletions

diff --git a/src/text/levels.c b/src/text/levels.c
new file mode 100644
index 0000000..dc031f8
--- /dev/null
+++ b/src/text/levels.c
@@ -0,0 +1,652 @@
+#include <stdbool.h> // bool
+#include <string.h> // atoi()
+#include <stdlib.h> // EXIT_{FAILURE,SUCCESS}
+#include <stdio.h>
+#include "../libsok/sok.h"
+#include "levels.h"
+
+static const level_t
+LEVELS[] = {{
+  .pack = "Tutorials",
+  .name = "Hello World!",
+  .data = "5#|#@$.#|5#",
+}, {
+  .pack = "Tutorials",
+  .name = "Plus",
+  .data = "7#|3#.3#|3#$3#|#.$@$.#|3#$3#|3#.3#|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 1",
+  .data = "4#|# .#|#  3#|#*@  #|#  $ #|#  3#|4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 2",
+  .data = "6#|#4 #|# #@ #|# $* #|# .* #|#4 #|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 3",
+  .data = "  4#|3#  4#|#5 $ #|# #  #$ #|# . .#@ #|9#",
+}, {
+  .pack = "Microban",
+  .name = "Level 4",
+  .data = "8#|#6 #|# .**$@#|#6 #|5#  #|4 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 5",
+  .data = " 7#| #5 #| # .$. #|## $@$ #|#  .$. #|#6 #|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 6",
+  .data = "6# 5#|#4 3#3 #|# $$5 #@#|# $ #3.3 #|#3 8#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 7",
+  .data = "7#|#5 #|# .$. #|# $.$ #|# .$. #|# $.$ #|#  @  #|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 8",
+  .data = "  6#|  # ..@#|  # $$ #|  ## 3#|3 # #|3 # #|4# #|#4 ##|# #3 #|#3 # #|3#3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 9",
+  .data = "5#|#.  ##|#@$$ #|##3 #| ##  #|  ##.#|3 3#",
+}, {
+  .pack = "Microban",
+  .name = "Level 10",
+  .data = "6 5#|6 #.  #|6 #.# #|7#.# #|# @ $ $ $ #|# # # # 3#|#7 #|9#",
+}, {
+  .pack = "Microban",
+  .name = "Level 11",
+  .data = "  6#|  #4 #|  # ##@##|3# # $ #|# ..# $ #|#7 #|#  6#|4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 12",
+  .data = "5#|#3 ##|# $  #|## $ 4#| 3#@.  #|  #  .# #|  #5 #|  7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 13",
+  .data = "4#|#. ##|#.@ #|#. $#|##$ 3#| # $  #| #4 #| #  3#| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 14",
+  .data = "7#|#5 #|# # # #|#. $*@#|#3 3#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 15",
+  .data = "5 3#|6#@##|#4 .* #|#3 #3 #|5#$# #|4 #3 #|4 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 16",
+  .data = " 4#| #  4#| #5 ##|## ##3 #|#. .# @$##|#3 # $$ #|#  .#4 #|10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 17",
+  .data = "5#|# @ #|#3.#|#3$##|#4 #|#4 #|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 18",
+  .data = "7#|#5 #|#. .  #|# ## ##|#  $ #|3#$ #|  #@ #|  #  #|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 19",
+  .data = "8#|#3 .. #|#  @$$ #|5# ##|3 #  #|3 #  #|3 #  #|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 20",
+  .data = "7#|#5 3#|#  @$$..#|4# ## #|  #5 #|  #  4#|  #  #|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 21",
+  .data = "4#|#  4#|# . . #|# $$#@#|##4 #| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 22",
+  .data = "5#|#3 3#|#. .  #|#3 # #|## #  #| #@$$ #| #4 #| #  3#| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 23",
+  .data = "7#|#  *  #|#5 #|## # ##| #$@.#| #3 #| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 24",
+  .data = "# 5#|  #3 #|3#$$@#|#3 3#|#5 #|# . . #|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 25",
+  .data = " 4#| #  3#| # $$ #|##3. #|#  @$ #|#3 3#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 26",
+  .data = " 5#| # @ #| #3 #|3#$ #|# 3.#|# $$ #|3#  #|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 27",
+  .data = "6#|#3 .#|# ## ##|#  $$@#|# #3 #|#.  3#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 28",
+  .data = "5#|#3 #|# @ #|# $$3#|##. . #| #4 #| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 29",
+  .data = "5 5#|5 #3 ##|5 #4 #| 6#3 #|##5 #. #|# $ $ @  ##|# 6#.#|#8 #|10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 30",
+  .data = "4#|#  3#|# $$ #|#3. #|# @$ #|#3 ##|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 31",
+  .data = "  4#| ##  #|##@$.##|# $$  #|# . . #|3#3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 32",
+  .data = " 4#|##  3#|#5 #|#.**$@#|#3 3#|##  #| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 33",
+  .data = "7#|#. #  #|#  $  #|#. $#@#|#  $  #|#. #  #|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 34",
+  .data = "  4#|3#  4#|#7 #|#@$***. #|#7 #|9#",
+}, {
+  .pack = "Microban",
+  .name = "Level 35",
+  .data = "  4#| ##  #| #. $#| #.$ #| #.$ #| #.$ #| #. $##| #3 @#| ##3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 36",
+  .data = "4#|#  12#|# $ $ $ $ $ @ #|# 5.7 #|15#",
+}, {
+  .pack = "Microban",
+  .name = "Level 37",
+  .data = "6 3#|5# #.#|#3 3#.#|#3 $ #.#|# $  $  #|5#@# #|4 #3 #|4 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 38",
+  .data = "10#|#8 #|# ##.3# #|# # $$ . #|# . @$## #|5#4 #|4 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 39",
+  .data = "5#|#3 4#|# # # .#|#4 $ 3#|3# #$.  #|#3 #@3 #|# # 6#|#3 #|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 40",
+  .data = " 5#| #3 #|##3 ##|# 3$ #|# .+. #|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 41",
+  .data = "7#|#5 #|#@3$ ##|#  #3.#|##4 ##| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 42",
+  .data = "3 4#|3 #  #|3 #@ #|4#$.#|#3 $.#|# # $.#|#4 ##|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 43",
+  .data = "5 4#|5 # @#|5 #  #|6# .#|#3 $  .#|#  $$# .#|#4 4#|3#  #|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 44: Duh!",
+  .data = "5#|#@$.#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 45",
+  .data = "6#|#3. #|#  $ #|# #$##|#  $ #|#  @ #|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 46",
+  .data = " 6#|##4 #|#  ## #|# # $ #|#  * .#|## #@##| #3 #| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 47",
+  .data = "  7#|3#5 #|# $ $3 #|# 3# 5#|# @ . .3 #|#3 3#3 #|5# 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 48",
+  .data = "6#|#  @ #|#  # ##|# .#  ##|# .3$ #|# .#3 #|4#3 #|3 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 49",
+  .data = "6#|# @  #|# $# #|# $  #|# $ ##|3# 4#| #  #  #| #3.  #| #5 #| 7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 50",
+  .data = "  4#|3#  5#|#  $  @..#|# $4 # #|3# 4# #|  #6 #|  8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 51",
+  .data = "4#|#  3#|#4 3#|#  $*@ #|3# .# #|  #4 #|  6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 52",
+  .data = "  4#|3# @#|#  $ #|#  *.#|#  *.#|#  $ #|3#  #|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 53",
+  .data = " 5#|##. .##|# * * #|#  #  #|# $ $ #|## @ ##| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 54",
+  .data = "6 6#|6 #4 #|  5# .  #|3#  3#.  #|# $  $  . ##|# @$$ # . #|##4 5#| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 55",
+  .data = "8#|# @ #  #|#6 #|5#$ #|4 #  3#| ## #$ ..#| ## #  3#|4 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 56",
+  .data = "5#|#3 3#|#  $  #|##* . #| #3 @#| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 57",
+  .data = "  4#|  #  #|  #@ #|  #  #|3# 4#|#4 * #|#  $3 #|5#. #|4 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 58",
+  .data = "4#|#  4#|#.*$  #|# .$# #|## @  #| #3 ##| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 59",
+  .data = "12#|#10 #|# 7# @##|# #9 #|# #  $3 #  #|# $$ 5#  #|3#  # # 3.#|  4# #4 #|7 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 60",
+  .data = " 9#| #7 #|##@5# #|#  #3 # #|#  #3 $.#|#  ##$##.#|##$##  #.#|#3 $  #.#|#3 #  3#|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 61",
+  .data = "8#|#6 #|# 4# #|# #3.@#|# 3#$3#|# #5 #|#  $$ $ #|4#3 ##|3 #.3#|3 3#",
+}, {
+  .pack = "Microban",
+  .name = "Level 62",
+  .data = "3 10#|4#4 ##  #|#  3$4.$@#|#6 3#  #|#3 4# 4#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 63",
+  .data = "5#3 4#|#3 5# .#|#7 $  8#|3#  4# .$4 @ #|  #  #  #  4#3 #|  4#  4#  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 64",
+  .data = " 6#|##4 #|#3 $ #|#  $$ #|3# .5#|  ##.# @ #|3 #.  $ #|3 #. 4#|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 65",
+  .data = "  6#|  #4 #|  #  $ #| 4#$ #|## $ $ #|#4.# ##|#5 @ #|##  #3 #| 8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 66",
+  .data = "3 3#|3 #@#| 3#$3#|##  .  ##|#  # #  #|# #3 # #|# #3 # #|# #3 # #|#  # #  #|## $ $ ##| ##. .##|  #3 #|  #3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 67",
+  .data = "5#|#3 ##|# #  #|#@$*.##|##  . #| # $# #| ##3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 68",
+  .data = " 4#| #  6#|##4 $  #|# .# $3 #|# .#$5#|# .@ #|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 69",
+  .data = "4#  4#|#  4#  #|#  #  #  #|#  #4 $##|#  . .#$  #|#@ ## # $ #|#3 . #3 #|11#",
+}, {
+  .pack = "Microban",
+  .name = "Level 70",
+  .data = "5#|# @ 4#|#6 #|# $ $$ #|##$##  #|#3 4#|# ..  #|##..  #| 3#  #|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 71",
+  .data = "11#|#5 #3 3#|# $@$ # .  .#|# ## 3# ## #|# #7 # #|# #3 #3 # #|# 9# #|#11 #|13#",
+}, {
+  .pack = "Microban",
+  .name = "Level 72",
+  .data = "  4#| ##  5#| #  $  @ #| #  $#3 #|4# 5#|#  #3 #|#4 $ #|# ..#  #|#  .4#|#  ##|4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 73",
+  .data = "4#|#  5#|# $$ $ #|#6 #|## ## ##|#3.#@#|# 3# ##|#6 #|#  #3 #|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 74",
+  .data = " 4#| #  7#| #$ @#3 .#|## #$$3 .#|#  $  ##..#|#3 # 5#|3#3 #|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 75",
+  .data = " 7#|## 4.##|#3 6#|#3 $ $ @#|3#  $ $ #|  3#4 #|4 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 76",
+  .data = " 5#|##3 #|#4 5#|#  #.#3 #|#@ #.# $ #|#  #.#  ##|#4 #  #|##  ##$$#| ##5 #|  #  4#|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 77",
+  .data = "10#|# @ 4. #|#3 4#$##|## #  $ $ #| # $6 #| #3 6#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 78",
+  .data = " 7#|##5 ##|#  $ $  #|# $ $ $ #|## 3# 4#| #@  5.#| ##5 3#|  7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 79",
+  .data = " 9#| #4 #  #|## $#$#  #|#  .$.@  #|#  .#4 #|10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 80",
+  .data = "4#|#  7#|#  . ## .#|# $#4 .#|## ## # .#| #4 #  #| 4# #  #|  # @$ 3#|  # $$ #|  #4 #|  6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 81",
+  .data = " 5#| #3 #| # . #|## * #|#  *##|#  @##|## $ #| #3 #| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 82",
+  .data = "5#|#3 3#|# .3 ##|##*#$  #|# .# $ #|# @## ##|#5 #|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 83",
+  .data = "6#|#4 ##|# $ $ ##|## $$  #| # #3 #| # ## ##| #  . .#| # @. .#| #  4#| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 84",
+  .data = "8#|#  3. #|#  3# ##|#  # $  #|## #@$  #| # # $  #| # 3# 5#| #9 #| #3 3#3 #| 5# 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 85",
+  .data = "7 4#| 7#  #| # $6 #| #3 $ $  #| # 8#|## # .  #|#  # #  #|#  @ . ##|## # # #| #3 . #| 7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 86",
+  .data = "4 4#|  3#  ##| ## $3 #|## $  # #|# @#$$  #|# ..  3#|# ..3#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 87",
+  .data = "5 4#|6#  #|#7 #|#  3. .#|##$6#|# $  #|#3 $3#|##  $  #| ## @  #|  6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 88",
+  .data = "5 4#| # 3#  #| # #4 #| # #  # #| # #$ #.#| # #  # # #| # #$ #.# #|3 #  # # #|4#$ #.# #|# @5 # #|#3 #  ## #|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 89",
+  .data = "10#|#3 ##3 #|# $  $@# #|4# # $ #|3 #.#  ##| # #.# $#| # #.3 #| # #.3 #|3 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 90",
+  .data = " 8#| #  @3 #| # $  $ #|3# ## 3#|#  $..$  #|#3 ..3 #|10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 91",
+  .data = "11#|#4 .##  #|# $$@..$$ #|#3 ##.3 #|11#",
+}, {
+  .pack = "Microban",
+  .name = "Level 92",
+  .data = "  4#|  #  #4 5#|  #  #4 #3 #|  #  6#.# #|4#  $4 .  #|#3 $$# 3#.# #|#3 #3 # #3 #|9# #@ ##|10 #  #|10 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 93",
+  .data = " 9#|##3 #3 ##|#4 #4 #|#  $ # $  #|#3 *.*3 #|4#.@.4#|#3 *.*3 #|#  $ # $  #|#4 #4 #|##3 #3 ##| 9#",
+}, {
+  .pack = "Microban",
+  .name = "Level 94",
+  .data = "9#|# @ #3 #|# $ $3 #|##$3# ##|#  3.  #|#3 #3 #|6#  #|5 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 95",
+  .data = "8#|#@5 #|# .$$. #|# $..$ #|# $..$ #|# .$$. #|#6 #|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 96",
+  .data = "  6#|  #4 #|  #4 #|5#  #|#3 #.5#|#3 $@$3 #|5#.#3 #|3 ## ## ##|3 #3 $.#|3 #3 3#|3 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 97",
+  .data = "3 4#|3 #  8#|4# $ $5.#|#3 $3 6#|#@3# 3#|#  $  #|# $ # #|## #  #| #4 #| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 98",
+  .data = "5#|#3 ## 4#|#  $ 3# .#|# $3 $  .#|## $5#.# 4#|# $  # # .3#  #|#4 # # .#  @ #|3#  # #7 #|  4# ##5 ##|8 7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 99",
+  .data = "15 5#|15 #3 #|7#  7# # #|#5 #  #  #6 #|#  @  4#  #5 4#|#  #4 4.## 4#  #|#4 5# ## $$ $ $ #|6#3 #11 #|9 #  10#|9 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 100",
+  .data = "7#|# @#  #|#.$3 #|#. # $##|#.$#3 #|#. # $ #|#  #3 #|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 101: Lockdown",
+  .data = "  5#|  #3 #|  # # 7#|  #  *  #3 #|  ## ##3 # #|  #5 #*  #|3# # # # 3#|#  *#$+3 #|# #3 ## ##|#3 #  *  #|7# # #|6 #3 #|6 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 102",
+  .data = "11#|#4.#4 #|#  #3 $$ #|#  @  ##  #|#5 ##$ #|6#  $ #|5 #4 #|5 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 103",
+  .data = "  5#|  # . ##|3# $  #|# . $#@#|# #$ . #|#  $ 3#|## . #| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 104",
+  .data = "4 5#|5#3 #|#4 $  #|#  $#$#@#|3# #3 #|  # 3. #|  3#  ##|4 #  #|4 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 105",
+  .data = " 4# 4#|##  3#  ##|#3 # #3 #|#  *. .*  #|3#$3 $3#| #3 @3 #|3#$3 $3#|#  *. .*  #|#3 # #3 #|##  3#  ##| 4# 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 106",
+  .data = " 8#| #6 #| #@3 $ #|## 3#$ #|# 5.3#|# $ $ $  #|6# # #|5 #3 #|5 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 107",
+  .data = "8#|#6 #|# $*** #|# *  * #|# *  * #|# ***. #|#5 @#|8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 108",
+  .data = "4#5 5#|#  3#3 #3 ##|#4 #3 #$ $ #|#..# 5# #  #|#  @4 # $ $ #|#..#9 ##|##3 9#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 109",
+  .data = "  7#|# #5 #|# # # # #|  # @ $ #|3# 3# #|#3 3# #|# $  ##.#|## $  #.#| ## $  .#|# ## $#.#|## ## #.#|3# #3 #|3# 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 110",
+  .data = "  4#|  #  #|  # $4#|3#. .  #|# $ # $ #|#  . .3#|4#$ #|3 # @#|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 111",
+  .data = "6#|#4 4#|#4 3.#|#4 3.#|6#  #|  #  #  #|  # $$ ##|  # @$  #|  # $$  #|  ## $# #|3 #4 #|3 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 112",
+  .data = " 5#|##3 4#|#  3$  #|# #3 $ #|#3 $## ##|3#  #.  #|  #  #3 #| 5# 3#| #3 # ##| # @4.#| #6 #| #3 #  #| 8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 113",
+  .data = "3 5#|  ##3 #|3#  # #|#4 . #|#  ## 5#|#  . . #  ##|#  # @ $3 3#|5#. #  $  #|4 4#  $  #|7 ## $ ##|8 #  ##|8 #  #|8 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 114",
+  .data = "6#|#4 3#|#  # $ #|#  $ @ #|## ## 5#|#  #6.#|# $ $ $ $ #|##3 6#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 115",
+  .data = "4 5#|5#3 4#|#5 #4 #|#  #5.  #|##  ## # 3#| #$$@3$ #| #5 3#| 7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 116",
+  .data = "5 5#|3 3#3 #|4#5.#|# @5$ #|#5 # ##|5#3 #|4 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 117",
+  .data = " 4# 4#| #  3#  ##| #6 @ #|##..3#3 #|#6 #  #|#3.#$  # #|# ## $$ $ #|#  $4 3#|4#  3#|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 118",
+  .data = " 5#|##3 ##|#  $  ##|# $ $  ##|3#$# . ##|  # # .  #| ## ##.  #| # @  . ##| #3 #  #| 8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 119",
+  .data = "  6#|  #4 ##| ## ##  #| # $$ # #| # @$ # #| #4 # #|4# #  #|#  3. ##|#5 ##|7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 120",
+  .data = "6 4#|7#  #|# $6 ##|# $5#  #|#  @#  #  #|## ##..3 #|#  # ..4#|# $  3#|# $3#|#  #|4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 121",
+  .data = " 6#| # .  #|##$.# #|#  *  #|# ..3#|##$ # 5#|## ## #3 #|#  4# # #|#3 @ $ $ #|##  #5 #| 10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 122",
+  .data = "5#|#3 3#|# #$  #|# $3 #|# $ $ #|# $#  #|#  @3#|## 8#|#6 3.#|#9 #|8#..#|7 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 123",
+  .data = "8#|#6 #|# $ $$ 8#|5# @##. .  #|4 #$  # .3 #|4 #3 #. . ##|4 #$# ## # #|4 #8 #|4 #  3#  ##|4 #  # 4#|4 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 124",
+  .data = "14#|#6 #5 #|# $@$$ # . ..#|## ## 3# ## #| # #7 # #| # #3 #3 # #| # 9# #| #11 #| 13#",
+}, {
+  .pack = "Microban",
+  .name = "Level 125",
+  .data = "6 5#|6 #3 ##|6 # $  #|8# #@##|# .  # $ $  #|#8 $# #|#3.5#3 #|5#3 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 126",
+  .data = " 11#|##7.  #|# 7$@ #|#3 # # # ##|# # #5 #|#3 7#|5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 127",
+  .data = "## 4#|4#  4#| # $ $.  #|## #  .$ #|#3 ##.3#|#  $  . #|# @ #3 #|#  6#|4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 128",
+  .data = "  9#|3#3 #3 #|# * $ . . #|#3 $ ## ##|4#*#3 #| #  @  3#| #3 3#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 129",
+  .data = "  9#|3# @ #3 #|# * $ *.. #|#3 $ #3 #|4#*#  3#| #5 ##| #3 3#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 130",
+  .data = "5#  5#|#3 4#.. #|# 3$6 #|#3 $#  .. #|3# @#  ## #|  #  ##4 #|  10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 131",
+  .data = "5#|#3 #|# . #|#.@.3#|##.#  #|#  $  #|# $3 #|##$$  #| #  3#| #  #| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 132",
+  .data = "4#|# @3#|#.*  5#|#..#$$ $ #|##7 #| # # ##  #| #3 5#| 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 133",
+  .data = " 7#| #  . .3#| # . . . #|3# 4# #|#  @$  $ #|#  $$  $ #|4#3 3#|3 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 134",
+  .data = "8 4#|9#  #|#3 ## $3 #|#  $3 ##  #|3# #. .# ##|  # #. .#$##|  # #3 #  #|  # @ $4 #|  #  7#|  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 135",
+  .data = "7#|#5 5#|# $$#@##..#|# #7 #|#  $ # #  #|4# $  ..#|3 8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 136",
+  .data = " 7#| #5 #|## 3#$##|#.$3 @ #|# .. #$ #|#.##  $ #|#4 4#|6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 137",
+  .data = "7 4#|6 ##  3#|4#  #  $  #|#  4# $ $ #|#3 ..# #$  #|#  #3 @  3#|## #..# 3#| # ## # #| #6 #| 8#",
+}, {
+  .pack = "Microban",
+  .name = "Level 138",
+  .data = "  4#|3#  #|#4 3#|# # . .#|# @ 3.4#|# # # #3 ##|#3 # $$3 #|5#  $ $ #|4 ##$ # ##|5 #4 #|5 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 139",
+  .data = " 4#|##  4#|#3 3.#|#3 3.#|#3 # ##|#3 #@ 4# 4#|5# $3 3#  #|4 #  ##$ $3 #|3 3#5 $$  #|3 # $  ##3 3#|3 #4 6#|3 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 140",
+  .data = "8# 5#|#  #3 3#3 #|#6 ## $  #|#.# @ ## $  ##|#.#3 # $  ##|#.#4 $  ##|#. ## 5#|##4 #| 6#",
+}, {
+  .pack = "Microban",
+  .name = "Level 141",
+  .data = "  8#|  #  # . #|  #3 .*.#|  #  # * #|4#$##.##|#6 $ #|# $ ## $ #|#3 @#3 #|10#",
+}, {
+  .pack = "Microban",
+  .name = "Level 142",
+  .data = "  4#|  #  #|  #  4#|3#$.$  #|#  .@.  #|#  $.$3#|4#  #|3 #  #|3 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 143",
+  .data = "4#|#  4#|# $3 #|# .#  #|# $# ##|# .  #|4# #|3 # #| 3# 3#| #  $  #|## #$# ##|# $ @ $ #|# ..#.. #|3#3 3#|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 144",
+  .data = "3 4#| 3#  5#| # $$ #3 #| # $ . .$$##| # .. #. $ #|3# #** .  #|#  . **# 3#|# $ .# .. #|##$$.@. $ #| #3 # $$ #| 5#  3#|5 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 145",
+  .data = "3 5#|3 # @ #|  ##3 ##|3#.3$.3#|#  $3.$  #|#  $.#.$  #|#  $3.$  #|3#.3$.3#|  ##3 ##|3 #3 #|3 5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 146",
+  .data = " 7#|##  .  ##|# .3$. #|# $. .$ #|#.$ @ $.#|# $. .$ #|# .3$. #|##  .  ##| 7#",
+}, {
+  .pack = "Microban",
+  .name = "Level 147: reduction of (Mas Sasquatch 8)",
+  .data = "7 5#|8#3 #|#.3 .  @#.#|#  3#5 #|## $  #4 #| # $3 5#| # $#  #| ## #  #|  #3 ##|  5#",
+}, {
+  .pack = "Microban",
+  .name = "Level 148: from (Original 18)",
+  .data = "11#|#  .  #3 #|# #.  @3 #|#  #..# 7#|##  ## $$ $ $ #| ##11 #|  13#",
+}, {
+  .pack = "Microban",
+  .name = "Level 149: from (Boxxle 43)",
+  .data = " 4#|##  3#|#@$3 #|3# $ #| #  6#| #  $4.#| #  # 4#| ## # #| # $# #| #4 #| #  3#| 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 150: from (Original 47)",
+  .data = "5 4#| 5#  #| #5 $7#|## ## ..#  3.#|# $ $$#$  @3 #|#8 3#  #|7#  # 4#|6 4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 151: from (Original 47)",
+  .data = "3 4#|3 #  #| 3#  #|##  $ #|#3 # #|# #$$ 6#|# #3 #3 .#|#  $  @3 .#|3#  4#..#|  4#  4#",
+}, {
+  .pack = "Microban",
+  .name = "Level 152: reduced (Mas Sasquatch 23)",
+  .data = "6# 4#|#5 #4 #|#.##  #$##  #|#3 #5 #  #|#$  # 3#  #  #|# #6 #  # #|# # 4#  # # #|#. @4 $ * . #|15#",
+}, {
+  .pack = "Microban",
+  .name = "Level 153: reduction of (Revenge 306)",
+  .data = "13#|#.# @#  #3 #|#.#$$3 # $ #|#.#  # $#3 #|#.# $#  # $##|#.#  # $#  #|#.# $#  # $#|#..  # $3 #|#..  #  #  #|12#",
+}, {
+  .pack = "Microban",
+  .name = "Level 154: Take the long way home.",
+  .data = " 28#| #26 #| # 24# #| # #22 # #| # # 20# # #| # # #18 # # #| # # # 16# # # #| # # # #14 # # # #| # # # # 12# # # # #| # # # # #12 # # # #| # # # # # 12# # # #| # # # # #14 # # #| # # # # 16# # #| # # # #18 # #|##$# # 20# #|#. @ #22 #|29#",
+}, {
+  .pack = "Microban",
+  .name = "Level 155: The Dungeon",
+  .data = "4 6#15 4#|5#*#  17#  ##|#3 3#22 #|#8 8#  4#  ##  #|3# 4#5 #  4#  4#  ##|#*# # .# # # #5 #5 #3 #|#*# #  #5 # ##  # ##  ##  #|3#4 3# 3#  # ##  # ##  ##| #3 # #*#6 #5 # #4 #| #3 # 3#  5#  4# #4 #| 5#3 5#  7# 6#| #3 # # #**#15 #|## # #3 #**#  7#  ##  #|#4 9#  #4 5# 3#|# #13 # $8 #*#|#3 9#  3# @5#  #*#|5#7 4# 4#3 6#",
+}, {
+  .pack = "",
+  .name = "",
+  .data = "",
+}};
+#define NUM_LEVELS (sizeof(LEVELS) / sizeof(level_t))
+
+const level_t *
+levels_get_level(const size_t level) {
+  return LEVELS + (level % NUM_LEVELS);
+}
+
+size_t
+levels_get_num_levels(void) {
+  return NUM_LEVELS;
+}
diff --git a/src/text/levels.h b/src/text/levels.h
new file mode 100644
index 0000000..79ef494
--- /dev/null
+++ b/src/text/levels.h
@@ -0,0 +1,15 @@
+#ifndef LEVELS_H
+#define LEVELS_H
+
+#include <stddef.h> // size_t
+
+typedef struct {
+  char *pack, *name, *data;
+} level_t;
+
+const level_t *levels_get_level(const size_t);
+
+size_t levels_get_num_levels(void);
+
+#endif /* LEVELS_H */
+
diff --git a/src/text/main.c b/src/text/main.c
index de5b5f3..eb8d9b2 100644
--- a/src/text/main.c
+++ b/src/text/main.c
@@ -3,6 +3,7 @@
 #include <stdlib.h> // EXIT_{FAILURE,SUCCESS}
 #include <stdio.h>
 #include "../libsok/sok.h"
+#include "levels.h"
 
 #define UNUSED(a) ((void) (a))
 
@@ -18,650 +19,10 @@
   case '8': \
   case '9':
 
-typedef struct {
-  char *pack, *name, *data;
-} level_t;
-
-static const level_t
-LEVELS[] = {{
-  .pack = "Tutorials",
-  .name = "Hello World!",
-  .data = "5#|#@$.#|5#",
-}, {
-  .pack = "Tutorials",
-  .name = "Plus",
-  .data = "7#|3#.3#|3#$3#|#.$@$.#|3#$3#|3#.3#|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 1",
-  .data = "4#|# .#|#  3#|#*@  #|#  $ #|#  3#|4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 2",
-  .data = "6#|#4 #|# #@ #|# $* #|# .* #|#4 #|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 3",
-  .data = "  4#|3#  4#|#5 $ #|# #  #$ #|# . .#@ #|9#",
-}, {
-  .pack = "Microban",
-  .name = "Level 4",
-  .data = "8#|#6 #|# .**$@#|#6 #|5#  #|4 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 5",
-  .data = " 7#| #5 #| # .$. #|## $@$ #|#  .$. #|#6 #|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 6",
-  .data = "6# 5#|#4 3#3 #|# $$5 #@#|# $ #3.3 #|#3 8#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 7",
-  .data = "7#|#5 #|# .$. #|# $.$ #|# .$. #|# $.$ #|#  @  #|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 8",
-  .data = "  6#|  # ..@#|  # $$ #|  ## 3#|3 # #|3 # #|4# #|#4 ##|# #3 #|#3 # #|3#3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 9",
-  .data = "5#|#.  ##|#@$$ #|##3 #| ##  #|  ##.#|3 3#",
-}, {
-  .pack = "Microban",
-  .name = "Level 10",
-  .data = "6 5#|6 #.  #|6 #.# #|7#.# #|# @ $ $ $ #|# # # # 3#|#7 #|9#",
-}, {
-  .pack = "Microban",
-  .name = "Level 11",
-  .data = "  6#|  #4 #|  # ##@##|3# # $ #|# ..# $ #|#7 #|#  6#|4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 12",
-  .data = "5#|#3 ##|# $  #|## $ 4#| 3#@.  #|  #  .# #|  #5 #|  7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 13",
-  .data = "4#|#. ##|#.@ #|#. $#|##$ 3#| # $  #| #4 #| #  3#| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 14",
-  .data = "7#|#5 #|# # # #|#. $*@#|#3 3#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 15",
-  .data = "5 3#|6#@##|#4 .* #|#3 #3 #|5#$# #|4 #3 #|4 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 16",
-  .data = " 4#| #  4#| #5 ##|## ##3 #|#. .# @$##|#3 # $$ #|#  .#4 #|10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 17",
-  .data = "5#|# @ #|#3.#|#3$##|#4 #|#4 #|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 18",
-  .data = "7#|#5 #|#. .  #|# ## ##|#  $ #|3#$ #|  #@ #|  #  #|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 19",
-  .data = "8#|#3 .. #|#  @$$ #|5# ##|3 #  #|3 #  #|3 #  #|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 20",
-  .data = "7#|#5 3#|#  @$$..#|4# ## #|  #5 #|  #  4#|  #  #|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 21",
-  .data = "4#|#  4#|# . . #|# $$#@#|##4 #| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 22",
-  .data = "5#|#3 3#|#. .  #|#3 # #|## #  #| #@$$ #| #4 #| #  3#| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 23",
-  .data = "7#|#  *  #|#5 #|## # ##| #$@.#| #3 #| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 24",
-  .data = "# 5#|  #3 #|3#$$@#|#3 3#|#5 #|# . . #|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 25",
-  .data = " 4#| #  3#| # $$ #|##3. #|#  @$ #|#3 3#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 26",
-  .data = " 5#| # @ #| #3 #|3#$ #|# 3.#|# $$ #|3#  #|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 27",
-  .data = "6#|#3 .#|# ## ##|#  $$@#|# #3 #|#.  3#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 28",
-  .data = "5#|#3 #|# @ #|# $$3#|##. . #| #4 #| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 29",
-  .data = "5 5#|5 #3 ##|5 #4 #| 6#3 #|##5 #. #|# $ $ @  ##|# 6#.#|#8 #|10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 30",
-  .data = "4#|#  3#|# $$ #|#3. #|# @$ #|#3 ##|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 31",
-  .data = "  4#| ##  #|##@$.##|# $$  #|# . . #|3#3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 32",
-  .data = " 4#|##  3#|#5 #|#.**$@#|#3 3#|##  #| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 33",
-  .data = "7#|#. #  #|#  $  #|#. $#@#|#  $  #|#. #  #|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 34",
-  .data = "  4#|3#  4#|#7 #|#@$***. #|#7 #|9#",
-}, {
-  .pack = "Microban",
-  .name = "Level 35",
-  .data = "  4#| ##  #| #. $#| #.$ #| #.$ #| #.$ #| #. $##| #3 @#| ##3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 36",
-  .data = "4#|#  12#|# $ $ $ $ $ @ #|# 5.7 #|15#",
-}, {
-  .pack = "Microban",
-  .name = "Level 37",
-  .data = "6 3#|5# #.#|#3 3#.#|#3 $ #.#|# $  $  #|5#@# #|4 #3 #|4 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 38",
-  .data = "10#|#8 #|# ##.3# #|# # $$ . #|# . @$## #|5#4 #|4 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 39",
-  .data = "5#|#3 4#|# # # .#|#4 $ 3#|3# #$.  #|#3 #@3 #|# # 6#|#3 #|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 40",
-  .data = " 5#| #3 #|##3 ##|# 3$ #|# .+. #|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 41",
-  .data = "7#|#5 #|#@3$ ##|#  #3.#|##4 ##| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 42",
-  .data = "3 4#|3 #  #|3 #@ #|4#$.#|#3 $.#|# # $.#|#4 ##|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 43",
-  .data = "5 4#|5 # @#|5 #  #|6# .#|#3 $  .#|#  $$# .#|#4 4#|3#  #|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 44: Duh!",
-  .data = "5#|#@$.#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 45",
-  .data = "6#|#3. #|#  $ #|# #$##|#  $ #|#  @ #|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 46",
-  .data = " 6#|##4 #|#  ## #|# # $ #|#  * .#|## #@##| #3 #| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 47",
-  .data = "  7#|3#5 #|# $ $3 #|# 3# 5#|# @ . .3 #|#3 3#3 #|5# 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 48",
-  .data = "6#|#  @ #|#  # ##|# .#  ##|# .3$ #|# .#3 #|4#3 #|3 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 49",
-  .data = "6#|# @  #|# $# #|# $  #|# $ ##|3# 4#| #  #  #| #3.  #| #5 #| 7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 50",
-  .data = "  4#|3#  5#|#  $  @..#|# $4 # #|3# 4# #|  #6 #|  8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 51",
-  .data = "4#|#  3#|#4 3#|#  $*@ #|3# .# #|  #4 #|  6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 52",
-  .data = "  4#|3# @#|#  $ #|#  *.#|#  *.#|#  $ #|3#  #|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 53",
-  .data = " 5#|##. .##|# * * #|#  #  #|# $ $ #|## @ ##| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 54",
-  .data = "6 6#|6 #4 #|  5# .  #|3#  3#.  #|# $  $  . ##|# @$$ # . #|##4 5#| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 55",
-  .data = "8#|# @ #  #|#6 #|5#$ #|4 #  3#| ## #$ ..#| ## #  3#|4 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 56",
-  .data = "5#|#3 3#|#  $  #|##* . #| #3 @#| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 57",
-  .data = "  4#|  #  #|  #@ #|  #  #|3# 4#|#4 * #|#  $3 #|5#. #|4 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 58",
-  .data = "4#|#  4#|#.*$  #|# .$# #|## @  #| #3 ##| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 59",
-  .data = "12#|#10 #|# 7# @##|# #9 #|# #  $3 #  #|# $$ 5#  #|3#  # # 3.#|  4# #4 #|7 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 60",
-  .data = " 9#| #7 #|##@5# #|#  #3 # #|#  #3 $.#|#  ##$##.#|##$##  #.#|#3 $  #.#|#3 #  3#|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 61",
-  .data = "8#|#6 #|# 4# #|# #3.@#|# 3#$3#|# #5 #|#  $$ $ #|4#3 ##|3 #.3#|3 3#",
-}, {
-  .pack = "Microban",
-  .name = "Level 62",
-  .data = "3 10#|4#4 ##  #|#  3$4.$@#|#6 3#  #|#3 4# 4#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 63",
-  .data = "5#3 4#|#3 5# .#|#7 $  8#|3#  4# .$4 @ #|  #  #  #  4#3 #|  4#  4#  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 64",
-  .data = " 6#|##4 #|#3 $ #|#  $$ #|3# .5#|  ##.# @ #|3 #.  $ #|3 #. 4#|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 65",
-  .data = "  6#|  #4 #|  #  $ #| 4#$ #|## $ $ #|#4.# ##|#5 @ #|##  #3 #| 8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 66",
-  .data = "3 3#|3 #@#| 3#$3#|##  .  ##|#  # #  #|# #3 # #|# #3 # #|# #3 # #|#  # #  #|## $ $ ##| ##. .##|  #3 #|  #3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 67",
-  .data = "5#|#3 ##|# #  #|#@$*.##|##  . #| # $# #| ##3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 68",
-  .data = " 4#| #  6#|##4 $  #|# .# $3 #|# .#$5#|# .@ #|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 69",
-  .data = "4#  4#|#  4#  #|#  #  #  #|#  #4 $##|#  . .#$  #|#@ ## # $ #|#3 . #3 #|11#",
-}, {
-  .pack = "Microban",
-  .name = "Level 70",
-  .data = "5#|# @ 4#|#6 #|# $ $$ #|##$##  #|#3 4#|# ..  #|##..  #| 3#  #|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 71",
-  .data = "11#|#5 #3 3#|# $@$ # .  .#|# ## 3# ## #|# #7 # #|# #3 #3 # #|# 9# #|#11 #|13#",
-}, {
-  .pack = "Microban",
-  .name = "Level 72",
-  .data = "  4#| ##  5#| #  $  @ #| #  $#3 #|4# 5#|#  #3 #|#4 $ #|# ..#  #|#  .4#|#  ##|4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 73",
-  .data = "4#|#  5#|# $$ $ #|#6 #|## ## ##|#3.#@#|# 3# ##|#6 #|#  #3 #|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 74",
-  .data = " 4#| #  7#| #$ @#3 .#|## #$$3 .#|#  $  ##..#|#3 # 5#|3#3 #|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 75",
-  .data = " 7#|## 4.##|#3 6#|#3 $ $ @#|3#  $ $ #|  3#4 #|4 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 76",
-  .data = " 5#|##3 #|#4 5#|#  #.#3 #|#@ #.# $ #|#  #.#  ##|#4 #  #|##  ##$$#| ##5 #|  #  4#|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 77",
-  .data = "10#|# @ 4. #|#3 4#$##|## #  $ $ #| # $6 #| #3 6#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 78",
-  .data = " 7#|##5 ##|#  $ $  #|# $ $ $ #|## 3# 4#| #@  5.#| ##5 3#|  7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 79",
-  .data = " 9#| #4 #  #|## $#$#  #|#  .$.@  #|#  .#4 #|10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 80",
-  .data = "4#|#  7#|#  . ## .#|# $#4 .#|## ## # .#| #4 #  #| 4# #  #|  # @$ 3#|  # $$ #|  #4 #|  6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 81",
-  .data = " 5#| #3 #| # . #|## * #|#  *##|#  @##|## $ #| #3 #| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 82",
-  .data = "5#|#3 3#|# .3 ##|##*#$  #|# .# $ #|# @## ##|#5 #|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 83",
-  .data = "6#|#4 ##|# $ $ ##|## $$  #| # #3 #| # ## ##| #  . .#| # @. .#| #  4#| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 84",
-  .data = "8#|#  3. #|#  3# ##|#  # $  #|## #@$  #| # # $  #| # 3# 5#| #9 #| #3 3#3 #| 5# 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 85",
-  .data = "7 4#| 7#  #| # $6 #| #3 $ $  #| # 8#|## # .  #|#  # #  #|#  @ . ##|## # # #| #3 . #| 7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 86",
-  .data = "4 4#|  3#  ##| ## $3 #|## $  # #|# @#$$  #|# ..  3#|# ..3#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 87",
-  .data = "5 4#|6#  #|#7 #|#  3. .#|##$6#|# $  #|#3 $3#|##  $  #| ## @  #|  6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 88",
-  .data = "5 4#| # 3#  #| # #4 #| # #  # #| # #$ #.#| # #  # # #| # #$ #.# #|3 #  # # #|4#$ #.# #|# @5 # #|#3 #  ## #|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 89",
-  .data = "10#|#3 ##3 #|# $  $@# #|4# # $ #|3 #.#  ##| # #.# $#| # #.3 #| # #.3 #|3 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 90",
-  .data = " 8#| #  @3 #| # $  $ #|3# ## 3#|#  $..$  #|#3 ..3 #|10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 91",
-  .data = "11#|#4 .##  #|# $$@..$$ #|#3 ##.3 #|11#",
-}, {
-  .pack = "Microban",
-  .name = "Level 92",
-  .data = "  4#|  #  #4 5#|  #  #4 #3 #|  #  6#.# #|4#  $4 .  #|#3 $$# 3#.# #|#3 #3 # #3 #|9# #@ ##|10 #  #|10 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 93",
-  .data = " 9#|##3 #3 ##|#4 #4 #|#  $ # $  #|#3 *.*3 #|4#.@.4#|#3 *.*3 #|#  $ # $  #|#4 #4 #|##3 #3 ##| 9#",
-}, {
-  .pack = "Microban",
-  .name = "Level 94",
-  .data = "9#|# @ #3 #|# $ $3 #|##$3# ##|#  3.  #|#3 #3 #|6#  #|5 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 95",
-  .data = "8#|#@5 #|# .$$. #|# $..$ #|# $..$ #|# .$$. #|#6 #|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 96",
-  .data = "  6#|  #4 #|  #4 #|5#  #|#3 #.5#|#3 $@$3 #|5#.#3 #|3 ## ## ##|3 #3 $.#|3 #3 3#|3 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 97",
-  .data = "3 4#|3 #  8#|4# $ $5.#|#3 $3 6#|#@3# 3#|#  $  #|# $ # #|## #  #| #4 #| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 98",
-  .data = "5#|#3 ## 4#|#  $ 3# .#|# $3 $  .#|## $5#.# 4#|# $  # # .3#  #|#4 # # .#  @ #|3#  # #7 #|  4# ##5 ##|8 7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 99",
-  .data = "15 5#|15 #3 #|7#  7# # #|#5 #  #  #6 #|#  @  4#  #5 4#|#  #4 4.## 4#  #|#4 5# ## $$ $ $ #|6#3 #11 #|9 #  10#|9 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 100",
-  .data = "7#|# @#  #|#.$3 #|#. # $##|#.$#3 #|#. # $ #|#  #3 #|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 101: Lockdown",
-  .data = "  5#|  #3 #|  # # 7#|  #  *  #3 #|  ## ##3 # #|  #5 #*  #|3# # # # 3#|#  *#$+3 #|# #3 ## ##|#3 #  *  #|7# # #|6 #3 #|6 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 102",
-  .data = "11#|#4.#4 #|#  #3 $$ #|#  @  ##  #|#5 ##$ #|6#  $ #|5 #4 #|5 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 103",
-  .data = "  5#|  # . ##|3# $  #|# . $#@#|# #$ . #|#  $ 3#|## . #| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 104",
-  .data = "4 5#|5#3 #|#4 $  #|#  $#$#@#|3# #3 #|  # 3. #|  3#  ##|4 #  #|4 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 105",
-  .data = " 4# 4#|##  3#  ##|#3 # #3 #|#  *. .*  #|3#$3 $3#| #3 @3 #|3#$3 $3#|#  *. .*  #|#3 # #3 #|##  3#  ##| 4# 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 106",
-  .data = " 8#| #6 #| #@3 $ #|## 3#$ #|# 5.3#|# $ $ $  #|6# # #|5 #3 #|5 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 107",
-  .data = "8#|#6 #|# $*** #|# *  * #|# *  * #|# ***. #|#5 @#|8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 108",
-  .data = "4#5 5#|#  3#3 #3 ##|#4 #3 #$ $ #|#..# 5# #  #|#  @4 # $ $ #|#..#9 ##|##3 9#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 109",
-  .data = "  7#|# #5 #|# # # # #|  # @ $ #|3# 3# #|#3 3# #|# $  ##.#|## $  #.#| ## $  .#|# ## $#.#|## ## #.#|3# #3 #|3# 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 110",
-  .data = "  4#|  #  #|  # $4#|3#. .  #|# $ # $ #|#  . .3#|4#$ #|3 # @#|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 111",
-  .data = "6#|#4 4#|#4 3.#|#4 3.#|6#  #|  #  #  #|  # $$ ##|  # @$  #|  # $$  #|  ## $# #|3 #4 #|3 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 112",
-  .data = " 5#|##3 4#|#  3$  #|# #3 $ #|#3 $## ##|3#  #.  #|  #  #3 #| 5# 3#| #3 # ##| # @4.#| #6 #| #3 #  #| 8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 113",
-  .data = "3 5#|  ##3 #|3#  # #|#4 . #|#  ## 5#|#  . . #  ##|#  # @ $3 3#|5#. #  $  #|4 4#  $  #|7 ## $ ##|8 #  ##|8 #  #|8 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 114",
-  .data = "6#|#4 3#|#  # $ #|#  $ @ #|## ## 5#|#  #6.#|# $ $ $ $ #|##3 6#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 115",
-  .data = "4 5#|5#3 4#|#5 #4 #|#  #5.  #|##  ## # 3#| #$$@3$ #| #5 3#| 7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 116",
-  .data = "5 5#|3 3#3 #|4#5.#|# @5$ #|#5 # ##|5#3 #|4 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 117",
-  .data = " 4# 4#| #  3#  ##| #6 @ #|##..3#3 #|#6 #  #|#3.#$  # #|# ## $$ $ #|#  $4 3#|4#  3#|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 118",
-  .data = " 5#|##3 ##|#  $  ##|# $ $  ##|3#$# . ##|  # # .  #| ## ##.  #| # @  . ##| #3 #  #| 8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 119",
-  .data = "  6#|  #4 ##| ## ##  #| # $$ # #| # @$ # #| #4 # #|4# #  #|#  3. ##|#5 ##|7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 120",
-  .data = "6 4#|7#  #|# $6 ##|# $5#  #|#  @#  #  #|## ##..3 #|#  # ..4#|# $  3#|# $3#|#  #|4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 121",
-  .data = " 6#| # .  #|##$.# #|#  *  #|# ..3#|##$ # 5#|## ## #3 #|#  4# # #|#3 @ $ $ #|##  #5 #| 10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 122",
-  .data = "5#|#3 3#|# #$  #|# $3 #|# $ $ #|# $#  #|#  @3#|## 8#|#6 3.#|#9 #|8#..#|7 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 123",
-  .data = "8#|#6 #|# $ $$ 8#|5# @##. .  #|4 #$  # .3 #|4 #3 #. . ##|4 #$# ## # #|4 #8 #|4 #  3#  ##|4 #  # 4#|4 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 124",
-  .data = "14#|#6 #5 #|# $@$$ # . ..#|## ## 3# ## #| # #7 # #| # #3 #3 # #| # 9# #| #11 #| 13#",
-}, {
-  .pack = "Microban",
-  .name = "Level 125",
-  .data = "6 5#|6 #3 ##|6 # $  #|8# #@##|# .  # $ $  #|#8 $# #|#3.5#3 #|5#3 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 126",
-  .data = " 11#|##7.  #|# 7$@ #|#3 # # # ##|# # #5 #|#3 7#|5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 127",
-  .data = "## 4#|4#  4#| # $ $.  #|## #  .$ #|#3 ##.3#|#  $  . #|# @ #3 #|#  6#|4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 128",
-  .data = "  9#|3#3 #3 #|# * $ . . #|#3 $ ## ##|4#*#3 #| #  @  3#| #3 3#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 129",
-  .data = "  9#|3# @ #3 #|# * $ *.. #|#3 $ #3 #|4#*#  3#| #5 ##| #3 3#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 130",
-  .data = "5#  5#|#3 4#.. #|# 3$6 #|#3 $#  .. #|3# @#  ## #|  #  ##4 #|  10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 131",
-  .data = "5#|#3 #|# . #|#.@.3#|##.#  #|#  $  #|# $3 #|##$$  #| #  3#| #  #| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 132",
-  .data = "4#|# @3#|#.*  5#|#..#$$ $ #|##7 #| # # ##  #| #3 5#| 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 133",
-  .data = " 7#| #  . .3#| # . . . #|3# 4# #|#  @$  $ #|#  $$  $ #|4#3 3#|3 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 134",
-  .data = "8 4#|9#  #|#3 ## $3 #|#  $3 ##  #|3# #. .# ##|  # #. .#$##|  # #3 #  #|  # @ $4 #|  #  7#|  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 135",
-  .data = "7#|#5 5#|# $$#@##..#|# #7 #|#  $ # #  #|4# $  ..#|3 8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 136",
-  .data = " 7#| #5 #|## 3#$##|#.$3 @ #|# .. #$ #|#.##  $ #|#4 4#|6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 137",
-  .data = "7 4#|6 ##  3#|4#  #  $  #|#  4# $ $ #|#3 ..# #$  #|#  #3 @  3#|## #..# 3#| # ## # #| #6 #| 8#",
-}, {
-  .pack = "Microban",
-  .name = "Level 138",
-  .data = "  4#|3#  #|#4 3#|# # . .#|# @ 3.4#|# # # #3 ##|#3 # $$3 #|5#  $ $ #|4 ##$ # ##|5 #4 #|5 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 139",
-  .data = " 4#|##  4#|#3 3.#|#3 3.#|#3 # ##|#3 #@ 4# 4#|5# $3 3#  #|4 #  ##$ $3 #|3 3#5 $$  #|3 # $  ##3 3#|3 #4 6#|3 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 140",
-  .data = "8# 5#|#  #3 3#3 #|#6 ## $  #|#.# @ ## $  ##|#.#3 # $  ##|#.#4 $  ##|#. ## 5#|##4 #| 6#",
-}, {
-  .pack = "Microban",
-  .name = "Level 141",
-  .data = "  8#|  #  # . #|  #3 .*.#|  #  # * #|4#$##.##|#6 $ #|# $ ## $ #|#3 @#3 #|10#",
-}, {
-  .pack = "Microban",
-  .name = "Level 142",
-  .data = "  4#|  #  #|  #  4#|3#$.$  #|#  .@.  #|#  $.$3#|4#  #|3 #  #|3 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 143",
-  .data = "4#|#  4#|# $3 #|# .#  #|# $# ##|# .  #|4# #|3 # #| 3# 3#| #  $  #|## #$# ##|# $ @ $ #|# ..#.. #|3#3 3#|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 144",
-  .data = "3 4#| 3#  5#| # $$ #3 #| # $ . .$$##| # .. #. $ #|3# #** .  #|#  . **# 3#|# $ .# .. #|##$$.@. $ #| #3 # $$ #| 5#  3#|5 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 145",
-  .data = "3 5#|3 # @ #|  ##3 ##|3#.3$.3#|#  $3.$  #|#  $.#.$  #|#  $3.$  #|3#.3$.3#|  ##3 ##|3 #3 #|3 5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 146",
-  .data = " 7#|##  .  ##|# .3$. #|# $. .$ #|#.$ @ $.#|# $. .$ #|# .3$. #|##  .  ##| 7#",
-}, {
-  .pack = "Microban",
-  .name = "Level 147: reduction of (Mas Sasquatch 8)",
-  .data = "7 5#|8#3 #|#.3 .  @#.#|#  3#5 #|## $  #4 #| # $3 5#| # $#  #| ## #  #|  #3 ##|  5#",
-}, {
-  .pack = "Microban",
-  .name = "Level 148: from (Original 18)",
-  .data = "11#|#  .  #3 #|# #.  @3 #|#  #..# 7#|##  ## $$ $ $ #| ##11 #|  13#",
-}, {
-  .pack = "Microban",
-  .name = "Level 149: from (Boxxle 43)",
-  .data = " 4#|##  3#|#@$3 #|3# $ #| #  6#| #  $4.#| #  # 4#| ## # #| # $# #| #4 #| #  3#| 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 150: from (Original 47)",
-  .data = "5 4#| 5#  #| #5 $7#|## ## ..#  3.#|# $ $$#$  @3 #|#8 3#  #|7#  # 4#|6 4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 151: from (Original 47)",
-  .data = "3 4#|3 #  #| 3#  #|##  $ #|#3 # #|# #$$ 6#|# #3 #3 .#|#  $  @3 .#|3#  4#..#|  4#  4#",
-}, {
-  .pack = "Microban",
-  .name = "Level 152: reduced (Mas Sasquatch 23)",
-  .data = "6# 4#|#5 #4 #|#.##  #$##  #|#3 #5 #  #|#$  # 3#  #  #|# #6 #  # #|# # 4#  # # #|#. @4 $ * . #|15#",
-}, {
-  .pack = "Microban",
-  .name = "Level 153: reduction of (Revenge 306)",
-  .data = "13#|#.# @#  #3 #|#.#$$3 # $ #|#.#  # $#3 #|#.# $#  # $##|#.#  # $#  #|#.# $#  # $#|#..  # $3 #|#..  #  #  #|12#",
-}, {
-  .pack = "Microban",
-  .name = "Level 154: Take the long way home.",
-  .data = " 28#| #26 #| # 24# #| # #22 # #| # # 20# # #| # # #18 # # #| # # # 16# # # #| # # # #14 # # # #| # # # # 12# # # # #| # # # # #12 # # # #| # # # # # 12# # # #| # # # # #14 # # #| # # # # 16# # #| # # # #18 # #|##$# # 20# #|#. @ #22 #|29#",
-}, {
-  .pack = "Microban",
-  .name = "Level 155: The Dungeon",
-  .data = "4 6#15 4#|5#*#  17#  ##|#3 3#22 #|#8 8#  4#  ##  #|3# 4#5 #  4#  4#  ##|#*# # .# # # #5 #5 #3 #|#*# #  #5 # ##  # ##  ##  #|3#4 3# 3#  # ##  # ##  ##| #3 # #*#6 #5 # #4 #| #3 # 3#  5#  4# #4 #| 5#3 5#  7# 6#| #3 # # #**#15 #|## # #3 #**#  7#  ##  #|#4 9#  #4 5# 3#|# #13 # $8 #*#|#3 9#  3# @5#  #*#|5#7 4# 4#3 6#",
-}, {
-  .pack = "",
-  .name = "",
-  .data = "",
-}};
-#define NUM_LEVELS (sizeof(LEVELS) / sizeof(level_t))
-
 static char print_buf[(SOK_LEVEL_MAX_WIDTH + 1) * SOK_LEVEL_MAX_HEIGHT + 1];
 
 static bool
-on_size(
+print_on_size(
   const sok_ctx_t * const ctx,
   const sok_pos_t size,
   void * const data
@@ -681,7 +42,7 @@ on_size(
 }
 
 static bool
-on_home(
+print_on_home(
   const sok_ctx_t * const ctx,
   const sok_pos_t pos,
   const bool has_goal,
@@ -693,7 +54,7 @@ on_home(
 }
 
 static bool
-on_wall(
+print_on_wall(
   const sok_ctx_t * const ctx,
   const sok_pos_t pos,
   void * const data
@@ -705,7 +66,7 @@ on_wall(
 }
 
 static bool
-on_goal(
+print_on_goal(
   const sok_ctx_t * const ctx,
   const sok_pos_t pos,
   const bool has_player,
@@ -719,7 +80,7 @@ on_goal(
 }
 
 static bool
-on_box(
+print_on_box(
   const sok_ctx_t * const ctx,
   const sok_pos_t pos,
   const bool has_goal,
@@ -730,19 +91,20 @@ on_box(
   return true;
 }
 
-static sok_ctx_walk_cbs_t PRINT_CBS = {
-  .on_size = on_size,
-  .on_home = on_home,
-  .on_wall = on_wall,
-  .on_goal = on_goal,
-  .on_box =  on_box,
+static sok_ctx_walk_cbs_t
+PRINT_CBS = {
+  .on_size = print_on_size,
+  .on_home = print_on_home,
+  .on_wall = print_on_wall,
+  .on_goal = print_on_goal,
+  .on_box =  print_on_box,
 };
 
 static void
 print_level(
   const sok_ctx_t * const ctx
 ) {
-  // fill buffer
+  // fill print buffer
   if (!sok_ctx_walk(ctx, &PRINT_CBS, NULL)) {
     fprintf(stderr, "Couldn't print level\n");
     exit(EXIT_FAILURE);
@@ -789,21 +151,22 @@ print_moves(
 }
 
 int main(int argc, char *argv[]) {
-  size_t level = (argc > 1) ? atoi(argv[1]) : 0;
+  size_t level_num = (argc > 1) ? atoi(argv[1]) : 0;
+  const level_t *level = levels_get_level(level_num);
 
   // init context
   sok_ctx_t ctx;
   sok_ctx_init(&ctx, NULL);
 
-  if (!sok_ctx_set_level(&ctx, LEVELS[level].data)) {
-    fprintf(stderr, "Couldn't load level %zu\n", level);
+  if (!sok_ctx_set_level(&ctx, level->data)) {
+    fprintf(stderr, "Couldn't load level %zu\n", level_num);
     return EXIT_FAILURE;
   }
 
   char buf[1024];
   bool done = false;
   while (!done) {
-    printf("%s: %s (#%zu)\n", LEVELS[level].pack, LEVELS[level].name, level);
+    printf("%s: %s (#%zu)\n", level->pack, level->name, level_num);
     print_level(&ctx);
     printf("%zu%s> ", ctx.num_moves, sok_ctx_is_done(&ctx) ? " (won!)" : "");
 
@@ -850,11 +213,12 @@ int main(int argc, char *argv[]) {
     case 'n':
       if (sok_ctx_is_done(&ctx)) {
         // advance level
-        level = (level + 1) % NUM_LEVELS;
+        level_num++;
+        level = levels_get_level(level_num);
 
         // load next level
-        if (!sok_ctx_set_level(&ctx, LEVELS[level].data)) {
-          fprintf(stderr, "Couldn't load level %zu\n", level);
+        if (!sok_ctx_set_level(&ctx, level->data)) {
+          fprintf(stderr, "Couldn't load level %zu\n", level_num);
           return EXIT_FAILURE;
         }
       } else {
@@ -864,11 +228,12 @@ int main(int argc, char *argv[]) {
       break;
     CASE_DIGIT
       {
-        level = atoi(buf) % NUM_LEVELS;
+        level_num = atoi(buf) % levels_get_num_levels();
+        level = levels_get_level(level_num);
 
         // load level
-        if (!sok_ctx_set_level(&ctx, LEVELS[level].data)) {
-          fprintf(stderr, "Couldn't load level %zu\n", level);
+        if (!sok_ctx_set_level(&ctx, level->data)) {
+          fprintf(stderr, "Couldn't load level %zu\n", level_num);
           return EXIT_FAILURE;
         }
       }