0 votes
by (370 points)

I'm trying to use (print:) to display the items in my inventory to show the sellable items, but I want to find a way to omit anything in the array that is an equipped item. Is there a way to add a condition to the printed list, perhaps something like:

(print: $inventory.join(, ) except $quippeditem)

Thanks in advance.

1 Answer

+1 vote
by (157k points)

note: You didn't supply examples of what the values of your $inventory and equipped item related story variables look like, so I will assume they looks something like the following.

(set: $inventory to (a: "Dagger", "Club", "Ring Mail", "Chest Plate", "Leggings"))
(set: $equippeditems to (a: "Dagger", "Chest Plate"))

Harlowe includes a (for:) macro which can be used to loop through the items contained within an Array, you could combine that with an (unless:) macro to check if the current item is contained within the equipped item related story variable.

(for: each _item, ...$inventory)[{
	(unless: $equippeditems contains _item)[
		<!-- code to output the item. -->

If you really want to do everything in one line of code then you could use the (find:) macro to generate a new Array of unequipped items, and then use the JavaScript <array>.join() function to concatenate the new array's elements together.

(print: (find: _item where not ($equippeditems contains _item), ...$inventory).join(', '))

warning: Harlowe isn't designed to play well with JavaScript so you may recieve error messages when trying to do so.

Welcome to Twine Q&A, where you can ask questions and receive answers from other members of the community.

You can also find hints and information on Twine on the official wiki and the old forums archive.

See a spam question? Flag it instead of downvoting. A question flagged enough times will automatically be hidden while moderators review it.