A little formatting of the script, and your presentation could even hint at the output:

print+                      join $
   x,@$_,                $/for  map{@
     $_->[0            ]}map      {[[map
      {push@          $a,1;        int 8
       *sin $_       *.1==          $b-8?
         (j,a,p     ,h)[@            $a%4]
           :$"}+  @$_],                $b++]
              }([1..                     80])x16;
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By the way, it occurred to me that changing "==" to "<=" will integrate the sine wave:

                                          hjaphjaphj                  
+          
                                       japhjaphjaphjap                
+          
                                      hjaphjaphjaphjaphj              
+          
                                    aphjaphjaphjaphjaphja             
+          
                                   japhjaphjaphjaphjaphjap            
+          
                                 phjaphjaphjaphjaphjaphjaphj          
+          
                                aphjaphjaphjaphjaphjaphjaphja         
+          
a                             hjaphjaphjaphjaphjaphjaphjaphjaphj      
+          
ap                          aphjaphjaphjaphjaphjaphjaphjaphjaphja     
+          
aph                        japhjaphjaphjaphjaphjaphjaphjaphjaphjap    
+          
aphja                     hjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphj  
+          
aphjap                  aphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphja 
+          
aphjaphj              hjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjap
+ 
aphjaphjap          aphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjap
+ 
aphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjaphjap
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Good idea on the formatting. It adds a lot to the presentation.

Here's the beta version of the the fish variant:

       print join('',                     @$_)
   ,"\n"          for map              {@$_
  ->    [0]       }map        {[[map{@$a
=(                 @$a,$c=abs int sin(
   $_*              0.1)*     6>=abs($b
     -6));$c?[J,A,P,H]->             [$#$a%4]
        :' '}@$_],$b++,]}                ([1..44])x12;
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Read more... View output (523 Bytes)

print join('',@$_),"\n" for map{@$_->[0]}map{[[map{@$a=(@$a
,1);abs int sin($_*0.1)*6==abs($b-6)?[j,a,p,h]->[$#$a%4]:' '
}@$_],$b++,]}([1..44])x12;
[download]