Removing a "case" option from a "switch"?

[Dissentrix]

Hello, I'm starting out with Quest, and experimenting with various things.

I'm trying to set up a puzzle wherein there's a menu featuring several options you can click (basically like signboards you can hang up); so I have my switch script, and I'm trying to make it so when you select an option, it turns that one off and transfers it to a new verb, like so (I only left the first as an example):

options = Split("Blue symbol;Yellow symbol;Green symbol;Red symbol;Orange symbol", ";")
ShowMenu ("Which symbol do you want to put up?", options, true) {
  switch (result) {
    case ("Blue symbol") {
      msg ("You hang up the blue symbol.")
      IncreaseObjectCounter (gardensymbols, "symbolsup")
      if (not ListContains(gardensymbols.displayverbs, "Put symbol down")) {
        list add (gardensymbols.displayverbs, "Put symbol down")
      }
      if (GetInt(gardensymbols, "symbolsup") = 5) {
        list remove (gardensymbols.displayverbs, "Hang symbol up")
      }
    }
    case ("Yellow symbol") {
    }
    case ("Green symbol") {
    }
    case ("Red symbol") {
    }
    case ("Orange symbol") {
    }
    default {
      msg ("You step away from the pile of symbols.")
    }
  }
}

So my question is how would I, say, remove the "Blue symbol" option from this verb's menu upon selecting it? I'm not super familiar with the syntax. I think I could do this somewhat easily with simple "if" commands, but if there's some "switch remove" function or similar I don't know which I could use instead, that would obviously be helpful.

Cheers!

[KVonGit]

Hello.

Many ways to handle it. One way...

Make a list attribute for gardensymbols when play begins and clone the displayverbs list attribute to avoid errors later:

// Add to game.start
gardensymbols.options = Split("Blue symbol;Yellow symbol;Green symbol;Red symbol;Orange symbol", ";")
// Clone the gardensymbols displayverbs attribute, to make it safe to add/remove during play
gardensymbols.displayverbs = ListExclude(gardensymbols.displayverbs, "")

Then have the script you posted behave like this:

ShowMenu ("Which symbol do you want to put up?", gardensymbols.options, true) {
  switch (result) {
    case ("Blue symbol") {
      // Remove this option from the options list
      gardensymbols.options = ListExclude(gardensymbols.options, "Blue symbol")
      msg ("You hang up the blue symbol.")
      IncreaseObjectCounter (gardensymbols, "symbolsup")
      if (not ListContains(gardensymbols.displayverbs, "Put symbol down")) {
        list add (gardensymbols.displayverbs, "Put symbol down")
      }
      if (GetInt(gardensymbols, "symbolsup") = 5) {
        list remove (gardensymbols.displayverbs, "Hang symbol up")
      }
    }
    case ("Yellow symbol") {
    }
    case ("Green symbol") {
    }
    case ("Red symbol") {
    }
    case ("Orange symbol") {
    }
    default {
      msg ("You step away from the pile of symbols.")
    }
  }
}

---

This way, you control the options displayed by ShowMenu, and it won't matter if you have a case to handle a non-existent option.

[Dissentrix]

Oh, this looks like it could work! When you say "clone", do I do this in the gardensymbols attributes tab, or is this part of the game start script?

[KVonGit]

https://docs.textadventures.co.uk/quest/display_verbs.html#adding-and-removing-verbs-on-the-fly

They say "clone", but it's more like making a copy of the list which can be modified. If you don't do that part, Quest will likely throw an error when you try to modify an object's displayverbs list attribute.

Add to game.start:

gardensymbols.options = Split("Blue symbol;Yellow symbol;Green symbol;Red symbol;Orange symbol", ";")
gardensymbols.displayverbs = ListExclude(gardensymbols.displayverbs, "")

The first line could be handled by directly creating an options list attribute on the gardensymbols object directly in the editor. I just find it is easier to create lists like this using code than in the GUI. It will work the same during play either way.

The second line does need to be in the game's start script, though. It is creating a "new" displayverbs list attribute using the same list that already exists. This is just to "clone" it, so it can be modified without throwing an error.

[Dissentrix]

Okay, thanks a lot for your help! I'll try it out and mark this as an answer if it works.

[Dissentrix]

Well, it overall works really well, the only remaining issue is I'd like for the option to "Hang up" or "Put down" symbols to disappear from the verb list once you've hung up, or put down, every symbol, this is why there's the following couple of lines:

if (GetInt(gardensymbols, "symbolsup") = 5) { list remove (gardensymbols.displayverbs, "Hang symbol up") }

Problem is, this doesn't happen. Maybe because there are two different "gardensymbols.displayverbs" lists now?

EDIT: Never mind, that was me messing up. I realized that on my end, I had the check for "if symbolsup = 5" before the symbolsup counter is updated, so it didn't correctly take into account the increase. Everything works well now, thank you muchly!