Date   : Fri, 07 Dec 2012 10:41:42 +0000
From   : beeb@... (Kris Adcock)
Subject: Granny's Garden

Morning gents!

I meant to pass this link around t'other week, but I've been dying of 
man-flu:

http://www.danceswithferrets.org/meeblog/?p=1757

I imagine all you guys have already completed Granny's Garden, but for 
me it was quite important to finish off something that I started in 
primary school. :)

On a related note: on writing the above, I looked through the BASIC 
listing for GG to see if there was any rhyme or reason to many of the 
puzzles (it turns out there isn't, but there was still some interesting 
reading).

I was quite shocked to discover that the code is really quite dreadful! 
There is an unhealthy mix of GOTOs and PROCs, no use of FNs when they 
would have been a much more elegant solution, and a fair few dirty 
tricks to clean-up the stack (which leaks like buggery thanks to all the 
PROCs-and-GOTOs).

But I was just wondering: were FNs and multi-line IFs only added to 
later versions of BASIC? This might explain some of the programmer's 
choices ... or was it just that he didn't know about them?

So far I'm resisting the urge to rewrite it all. I think after thirty 
years, that ship has sailed. :)

All the best,

Kris Adcock