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https://github.com/coding-horror/basic-computer-games.git
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d26dbf036a
Spaces tend to cause annoyances in a Unix-style shell environment. This change fixes that.
125 lines
3.8 KiB
Ruby
125 lines
3.8 KiB
Ruby
#!/bin/env ruby
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# Bunny - Print a large ASCII-pixel bunny icon made up of the letters
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# of the word BUNNY.
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# This is a recreation of bunny.bas in Ruby that takes advantage of
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# the language's features to make the code easier to understand and
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# modify.
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#
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# Instead of storing the image as a set of ranges, we just store it as
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# ASCII art, then replace the pixes with the appropriate letters when
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# printing. In addition to being simpler, this also lets you modify
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# the image much more easily.
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# We assume a screen width of 80. (With modern consoles, doing this
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# accurately gets complex and it's really not worth the bother for
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# this little program so 80 columns it is.)
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ScreenWidth = 80
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# The bunny image. Totally not the logo of a magazine that was edgy
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# in the 1970s.
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Bunny = <<EOF
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**
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*** ******
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****** **********
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******** ************
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********* **************
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********** ***************
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*********** ****************
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*********** *****************
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*********** *****************
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*********** ****************
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*********** ****************
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************ ****************
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************ ***************
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************ ***************
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************ **************
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*********** *************
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**********************
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********************
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*****************
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*************
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**********
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********
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*************
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******************
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*********************
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***********************
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**************************
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****************************
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******** *******************
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******** ********************
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********* ********************
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********** *********************
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**********************************
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***********************************
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*********************************
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********************************
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******************************
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****************************
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*********************** *
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**** ******* **** *
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***** ******** *
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***** * ******* *
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****** ******* ******
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****************** ***
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*** * * * ********
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** ** * * *
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** ****
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***
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**
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EOF
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# Do the thing. (We put it in a function to keep from spewing global
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# variables all over the place. It's not really necessary here but
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# it's good practice.)
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def main
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puts_centered "Bunny"
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puts_centered "Creative Computing Morristown, New Jersey"
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# Print some blank lines
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print "\n\n\n"
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print_bunny_text(Bunny)
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puts
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end
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def puts_centered(str)
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print ' ' * ((ScreenWidth - str.size)/2)
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puts str
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end
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# Print an ASCII-pixel image such that each pixel is a letter of the
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# word BUNNY chosen by the column in which it appears.
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def print_bunny_text(text)
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bunny = "BUNNY"
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# Take the initial string and split it on the newlines (i.e. turn it
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# into a list of strings, each string making up one line), then loop
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# over the lines one at a time, converting and then printing each of
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# them.
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for line in text.split(/\n/)
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# Replace the '*' with the correct letter.
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for n in (0..line.size - 1)
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line[n] = bunny[n % 5] if line[n] != ' '
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end
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# Bonus hackery: we could replace the above with this one-liner,
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# but it's kind of hard to understand so it may or may not be wise
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# to use it.
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#
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# line.gsub!(/(\S)/) {|m| bunny[$~.begin(0) % bunny.size] }
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puts line
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end
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end
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main()
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