Generates a snakes & ladders board in the form of a folder structure, using symbolic links for snakes & ladders. Snakes & ladders are taken from a file in the format: <start> <end>\n

snakes-and-ladders.sh

#!/bin/bash

# @author   gideon mw jones
# @created  2013-12-27
# @version  1
# creates a directory structure board for snakes & ladders

BRDSZ=100

# initialising board & links
if [ $1 ] && [ -d $1 ]; then
   rm $1/* -r
   for ((i=0; i<=$BRDSZ; i++)); do   
      mkdir $1/$i
      touch $1/$i/square-$i
         
      ((mx = $BRDSZ-$i>6 ? 6 : $BRDSZ-$i))      
      
      for ((j=1; j<=$mx; j++)); do 
         ln -s ../$(($i+$j)) $1/$i/$j      
      done   
   done
    
   # reading snakes & ladders file
   # format: <start> <end>\n  
   if [ $2 ] && [ -f $2 ]; then         
      while read l; do  
         arr=(${l// / });
            
         rm $1/${arr[0]} -r
         ln -s ${arr[1]} $1/${arr[0]}
      done < $2
   fi
fi