[APBeta] Scripting question

[Paul Rodman]

On Apr 18, 2009, at 02:35 PM, Michael Portuesi wrote:

> Does the AP scripting language allow one to create objects from  
> within a script?


> The number of global variables in my charts script frightens me, as  
> does the number of parameters I have to pass to each of the  
> functions within the script.  I'd like to create an object to hold  
> all these values, or perhaps a hash table that will store this blob  
> of information as a set of named attributes.
>
> Without these sorts of language tools, it becomes difficult to build  
> any sort of large-scale scripts inside AstroPlanner.  (I realize  
> this is directed at the compiler vendor, not you, but I had to vent).

Yes, it does (V1 and V2 for that matter)

e.g.

class MyClass
   dim property1 as integer
   dim property2 as string

   sub Constructor()
      property1=77
      property2="Sunset Strip"

   function Squodge() as string
     return str(property1) + " " + property2
   end function
end class

sub main()
   dim a as MyClass

   a = new MyClass
   print a.Squodge
end sub


and so on.

I use a lot of classes in the 10,000+ line framework which is  
prepended to each script (See Script->Framework Reference).

Note that in 2.0b34 I introduced a Dictionary class that allows you to  
set up a "hash table" for storing and retrieving stuff.

e.g.

dim d as new Dictionary

d.Value("Param1") = 77
d.Value(9912) = "Whatever"

if d.HasKey(9912) then print d.Value(9912)

If you'd like a copy of the Framework source code for ideas, I can  
provide it via personal e-mail.

Paul R.