Hearthling item memory for vending stands

[Granger]

You created this with OO technology?

Nope. I am utterly unconvinced by Simula-style OO.

I was once too, but i must admit that with time i see some merits when applied to the right problems.

There are two possible things that could at all be considered an ID of an object: The sprite, and the ID for locating the code which takes care of deserializing an object from its on-disk save-format. Both would work for extremely simple things like apples, of course, but break down with more complex objects. The sprite can both vary within the same kind of object/item (as for e.g. road signs or tree-planting pots) as well as potentially being the same between different objects/items.

Should you really save on-disk what sprite to use you have a really innovative way to handle this for some reason (which evades me so far tbh).

The same thing goes for the persistence ID as well, though in different ways. For instance, kilns, baking ovens, ore smelters and finery forges are all deserialized by the same function. The same goes for all kinds of crime clues, and for some other stuff as well.

In case the deserialisation ID works for extremely simple things (i don't think someone would feed an oven to a vending stand) like all items able to be picked into inventory you could maybe use this - without any warranty because i don't know the sideeffects this might have, cans of worms opened, or amount of paint used to paint yourself into a corner (in terms of doors for future expansions closed).

Apart from those, objects/items have no type. They do have various predicates they can satisfy, however. The crafting and building systems ask an item if it is an apple, a string, some common metal, if it is a container containing at least an amount of some substance, or something else entirely.

Without having looked at the code (which must be quite interesting given the view i have now on how you do it is correct - willing to sign a NDA to get a glimpse ) i am currently out of ideas on how to possibly handle this - apart from restructuring it in a way that an apple is an apple (on-disk and in memory).

[loftar]

I was once too, but i must admit that with time i see some merits when applied to the right problems.

It might have some limited merits here and there. Having looked far and wide, I still don't see what or where, though. ;)

Should you really save on-disk what sprite to use

No, I don't. You must have misunderstood me somehow.

In case the deserialisation ID works for extremely simple things (i don't think someone would feed an oven to a vending stand) like all items able to be picked into inventory you could maybe use this

Not all inventory items are that simple, however. I already mentioned crime clues as one example, but I think there are a couple of others as well -- I can't really think of any right now, though, but I have plans for several, particularly if I figure out a good scheme to make combinatorial food.

There are other problems, too; for instance, such a vending stall could never ask for String, Metal or other abstract categories of items. Neither is there, as I already mentioned, any way to map those IDs to any displayable resource.

That said, however, I can see that an ugly-hack vending stall could still have some utility, in which case I'd probably limit items by sprite. I'm not sure I'm ready to open that proverbial can, though.

[Granger]

You must have misunderstood me somehow.

Given that english isn't my native language - and i just ended a way to long session of your very addictive game leading to near-sunrise local time...

There are other problems, too; for instance, such a vending stall could never ask for String, Metal or other abstract categories of items. Neither is there, as I already mentioned, any way to map those IDs to any displayable resource.

One option could be to create a new flavour of vending stand (buying type, maybe with a different color to give hints to people passing by) which opens an additional palette with generics that can be used in case stuff like string is wanted (they must be limited to dragging onto the vending stand interface though, so they don't end up in players inventory).

As a sidenote: Thanks for opening your hobby project to the public!

[loftar]

i just ended a way to long session of your very addictive game leading to near-sunrise local time...

Our time zones must be close, then. :)

As a sidenote: Thanks for opening your hobby project to the public!

Nah, really; thanks for playing. Haven would not have taken its current shape if it weren't for everyone playing it. :)

[Jackard]

One option could be to create a new flavour of vending stand (buying type, maybe with a different color to give hints to people passing by) which opens an additional palette with generics that can be used in case stuff like string is wanted (they must be limited to dragging onto the vending stand interface though, so they don't end up in players inventory).

we need these for offline trading to actually work properly viewtopic.php?f=5&t=4983

[Granger]

One option could be to create a new flavour of vending stand (buying type, maybe with a different color to give hints to people passing by) which opens an additional palette with generics that can be used in case stuff like string is wanted (they must be limited to dragging onto the vending stand interface though, so they don't end up in players inventory).

we need these for offline trading to actually work properly viewtopic.php?f=5&t=4983

Read through this and tbh i still don't really see the the absolute need for generics (at least at the current state of the game).

The example given there (selling caroot cake and wanting linnen, chants or berries) could well be modeled by using one buyers stand acceptin linnen, chants and berries (3 slots, each with an individual price - must be able to say 'buying ? items of type ? (minimum quality ?) for ? coins' though to make it useful for lowpriced goods) and a vending stand selling the cake.

And in case you want to get string you could well setup the slots to accept fibers, taproot and stinging nettle...