[SOLVED]Javascript exception is thrown when jumping from a dialogue to another

[Crimson Wizard]

Still I wonder if it's ok in this case to use dAnotherDialog.Start().

This is your game, so it's your decision. Personally, I would not use a function that is known to work incorrectly inside a dialog script, even if it happens to achieve result in this case. And I do not see any real reason to use this function, since there's another variant that works correctly.

[Giacomo]

Sure, thank you Crimson and all users for your help!

[Giacomo]

This seems to work, I hope it can be useful for other users.

Code: ags

bool _checkAvailableOptions(Dialog* myDialog)
{
  for(int i = 1; i <= myDialog.OptionCount; i++)
  {
    if(myDialog.GetOptionState(i) == true) return true;  
  }
  return false;
} 

[Crimson Wizard]

Code: ags

    if(myDialog.GetOptionState(i) == true) return true;

I'm sorry, but this is not accurate, although might work by coincidence. GetOptionState does not return a boolean, it returns enum:
https://adventuregamestudio.github.io/ags-manual/Dialog.html#dialoggetoptionstate

The correct way of checking would be

Code: ags

if(myDialog.GetOptionState(i) == eOptionOn) return true;