try operations

[svaucher]

I've been playing around with the try operations, but I haven't understood the parameter especially with else_try operations. Is it an identifier?:

I've done something like this

(try_begin, 0),
    (party_is_active, CURRENT_MESSENGER_VAR),
    (val_add, "$messengers_used", 1),
(else_try, 0),
    (eq, CURRENT_MESSENGER_VAR, NO_MESSENGER),
    (val_add, "$messengers_available", 1),
(else_try, 0),
    (call_script, "script_messenger_killed"),
    (val_add, "$messengers_killed", 1),
(end_try, 0)

I don't understand why both the first statements ($messengers_used incremented) and the last are executed ($messengers_killed).

 

[Khalid ibn Walid]

I've had enormous problems with the try operations.

And I've found the party_is_active operation is very treacherous. At least that what is seems in my completely amateristic opinion. I've found that if a party was "never created", then it tends to conclude that "party_is_active" to be true.

 

[fisheye]

Just a suggestion (haven't tested it myself), what about:

(try_begin, 0),
    (party_is_active, CURRENT_MESSENGER_VAR),
    (val_add, "$messengers_used", 1),
(else_try, 0),
  (try_begin, 0),
    (eq, CURRENT_MESSENGER_VAR, NO_MESSENGER),
    (val_add, "$messengers_available", 1),
  (else_try, 0),
    (call_script, "script_messenger_killed"),
    (val_add, "$messengers_killed", 1),
  (end_try, 0)
(end_try, 0)

Reasoning being that else_try might not be usable twice. Does this work?

 

[Janus]

I'm betting Fisheye has the right idea.
I've used simple try_begin and end_try, but haven't had reason to use else_try in the mix myself. For my purposes, multiple try_begin and end_try work exactly as they should; therefore the problem seems to be with else_try.
If Fisheye's idea is correct, it's still something Armagan would do well to improve at some point.

 

[Ancientwanker]

Try operations are hosed. They dont work right and Armagan advised me not to use else_try until the next version fixes them. I think his words were, "badly bugged".

 

[Janus]

Well, must just be the else_try (possibly try_for_range as well, haven't used it) that's got problems. Try_begin and end_try seem to work well for a script to execute multiple commands instead of cutting off the whole script as soon as it reaches something that evaluates false.

 

[svaucher]

Thanks you all for the heads' up for the else_try. I guess I'll hack at it some more

Khalid, thanks for the info for party_is_active, I thought it was acting a bit weird.