Creating a shop script

  This is a Sandbox shop example script, just follow and edit it to your liking.

  1.
     "on_start" = [
  2.
        money = 0
  3.
        pie = 0
  4.
        sword = 0
  5.
        treasure = 0
  6.
        ]
  7.
      
  8.
     "level_trigger_1" = [ money = ( + $money 5 )
  9.
        echo "You got 5 moneys."
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        ]
 11.
      
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     "level_trigger_2" = "showgui Shopkeeper"
 13.
      
 14.
     newgui Shopkeeper [
 15.
        guitext "What're ya buyin, stranger?" chat
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        guibar
 17.
        guilist [
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           guibutton "Pie: 10 moneys" [
 19.
              if ( > $money 9 ) [
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                 money = ( - $money 10 )
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                 pie = ( + $pie 1 )
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              ]
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           ]
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           guibar
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           guibutton "Sword: 20 moneys" [
 26.
              if ( > $money 19 ) [
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                 money = ( - $money 20 )
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                 sword = ( + $sword 1 )
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                 ]
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              ]
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           guibar
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           guibutton "Treasure: 40 moneys" [
 33.
              if ( > $money 39 ) [
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                 money = ( - $money 40 )
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                 treasure = ( + $treasure 1 )
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                 ]
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              ]
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        ]
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     ]
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 41.
     newgui Inventory [
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     guibutton "Back" "cleargui 1"
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     guibar
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     guitext ( format "You have %1 moneys in your wallet." $money )
 45.
     guitext ( format "You have %1 pies.  Yum." $pie )
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     guitext ( format "You have %1 swords.  Not that you can use them..." $sword )
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     guitext ( format "You have %1 treasures.  Lucky you!" $treasure )
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     ]
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 50.
     newgui main [
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        guilist [
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           guilist [
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              guibutton "Inventory" "showgui Inventory"
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           ]
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        ]
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        guibar
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        @main
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     ]