A Basic Question: A list player

[chikitin <cs...@gm...>]

Hi Folks, 

I am totaly new to Lua. I am trying to make a function called
"list_playerXL", so that, it plays the sounds defined in the array named "a"
one after another. If you call the function with bl=0, it doesn't randomize
them, it simply plays the first n sounds, otherwise ( for any other values
for b) it selects m random sounds defined in "a" and play them one after
another. Here's how I have tried to do it: 


first we define an array of sound as follows: 



a={} 

a[1]=sound... 

... 



a[m]=sound... 


--The folowing function returns an array containing n elements randomly
selected from tbl. 

Code: 

function n_permuter(tbl, n) 
  for i = 1,  n do 
    local a,b = math.random(#tbl),math.random(#tbl) 
    tbl[a], tbl[b] = tbl[b], tbl[a] 
  end 
end 

---- here's the player! but doesn't work properly. 

function list_playerXL(a,m,bl) 

    
  a[1]:play() 
  local ii=1 
  
  
if bl==0 then 

 pipmak.schedule(.05, 

       function() 
              
         repeat              
         if not a[ii]:playing() then 
             if not a[ii+1]:playing() then  

                            ii=ii+1 
                            a[ii]:play() 

                          end          
                      end 
       
         if a[ii]:playing() then 
                         n = .05 
                      else 

                            n = nil 
                   return n 

                      end          
             until ii==m-1        
                      end 
          ) 
else 

      a= n_permuter(a, m) 
      list_playerXL(a, m, 0) 
    
end 
end 


-- but when i execute the code, it only plays the first sound in the array!
I tried list_playerXL(a,6,0). but it plays different number of sounds each
time! It seams the repeat loop in the code doesn't work properly. 
I couldn't Attach the file ( 5MB) it was saying that the file is too large
when i tried to upload it.


Any help would be greatly appreciated. 

cs
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