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Paste # 28272
2017-06-23 04:28:27

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Draw a bot

  1. #lang racket
  2. (require 2htdp/image)
  3.  
  4.             {overlay (square 70 "solid" "green")
  5. ;Head
  6.                           {beside (square 12 "solid" "white")
  7. ;Left eye
  8.                                   (square 12 "solid" "green")
  9. ;space
  10.                                   (square 12 "solid" "white")
  11. ;Right eye
  12. }
  13.                                {above (rectangle 10 0 "solid" "black")
  14. ;Nose
  15.                                       (rectangle 50 20 "solid" "white")
  16. ;Mouth
  17. }}
  18.             {above (square 20 "solid" "green")
  19. ;Neck
  20.                            {overlay (rectangle 70 60 "solid" "green")
  21. ;Body
  22.                                     (text "BOT" 50 "black")
  23. ;Text
  24. {overlay (rectangle 75 60 "solid" "black")
  25. ;background
  26. }}}

=>

image

overlay: arity mismatch;

 the expected number of arguments does not match the given

number

  expected: at least 2

  given: 1

  arguments...:

   (object:image% ...)