How To Add An RPG Inventory with uVS?

[crude linden]

Im curious... How can i implement an inventory and drop item system for RPGs like in Diablo 2?

(Each item occupies 1 slot. No need for size)

Is it possible to create scriptable objects (DO) with unity visual scripting (uVS) and not using c#?

Everywhere i search - its recommended to use SO...

I want to add weapon drops with magic stats... And a range of them...

"Vampire Rifle Of Hell"

1 ~ 4% turn dmg into hp
1 ~ 7% chance to burn

So it can have 1% hp steal and 3% burn chance... Or 4% hp steal and 1% burn... And so on.

I would love to add this into my game.

I already have a drop item system from enemies. When they die, there's a % chance to drop item.

Now i need to add this item to an inventory. Save item so it doesnt disappear on closing game. And spawning different stats with suffixes/prefixes.

Any help?

===

@lime pebble @remote prairie you guys have helped me a lot previously, maybe you know about this

[void wedge]

what is the issue with creating scriptable objects with c# its very easy

[crude linden]

I tried once. Failed. Didnt work :/

Seems like c# doesnt like me lol

[crude linden]

i dont understand why its that doable with c# but not with uVS hmm

[lime pebble]

If you have the community addons you can make the C# Generator generate the Scriptable Object for you

If not I can help you make the Scriptable Object since its quite easy

[crude linden]

so if it's not c# - it can't be done?

and what about the inventory system. I've been reading about it and SO are not obligatory to make it happen.

[lime pebble]

Yeah its not obligatory its just more difficult

Atleast from what i remember because its been like 2 years since i tried to make a Inventory

[crude linden]

Really, 2 years. hmm and without SO - what would be the method?

I've been told playerPrefs is not good for things that are not editor-related. And "Saved Variables" in uVS (according to manual) uses playerPrefs.

so how are items, specially weapons with magic stats, saved properly?

[lime pebble]

https://youtube.com/playlist?list=PLgKmjJ_d-5s7wLuhhd7VcajRP7ee5G8TZ&si=c4NodF-4SrWST9or

[lime pebble]

In the second video(the first video of the tutorial) at 14:05 he shows how to do it, you use prefabs to make your items

[crude linden]

https://megahertzs873846344.wordpress.com/2020/11/11/inventory-system-part-i-creating-the-inventory-ui-and-items-template/

Found the written guide. Its a shame his patreon doesnt exist or no longer publishes new tutorials...

Thanks for that reference. I saw it the other day but couldnt focus on loooong videos (like 5 of 15 mins each).

Reading this guide helps

[crude linden]

I watched the tutorial... but how do you "save" the inventory?

I get it adds prefabs to the inventory parent...

but if you close the game and reopen it... Inventory will be empty.

so what makes it stay saved even after closing game?

[lime pebble]

Well you need to write all the infomation of each slot to a file then once you open the game read the file's info and loop though all the slots putting the info where its needed

I cant really give you more info as I don't have your inventory code to see where or how to implement this for your specific case

[crude linden]

I dont have any inventory code done yet. Except the UI layout. I might progress a bit every day to make it happen, but not spend a day on it because i have other things to do - but i really want to implement this.

Both for the experience and for the game itself.

I'll share what I have soon.

[crude linden]

And after 13 days since I got the wish to add an inventory to my game...

No C# needed at all. No scriptable object. 100% uVS.

My game can now:

• Drop items with random suffix/prefix names with stat bonuses.
• Pick them and add to inventory. Checks if it's stackable, empty slot or shows bag full.
• Can equip weapons or armors. They can't be crossed (armor in weapon, etc).
• Weapon becomes available when equipped to be used.
• Headgear shows a placeholder - I can add TONS of headgear styling with this now as it follows player's head.
• Items have stats that adds and shows correctly in player's stat screen
• Stat screen have separated base stat + bonus stat. And even shows special effects power.
• System can be saved / loaded even after game closes so progress and drops are not lost.
• Inventory is scrollable, resizeable, and can have less or more slots with ease (maybe start small and purchase more space?)

I may share a tutorial on how to do this. Because I didn't see any tutorial for this online. The only ones I've found are sort of "here's a custom node made with c#, buy it, and get it done" type of videos... and that is not a tutorial. That's an upsell.

I always loved inventories in videogames. I didn't want to do this on my game because I thought it was "impossible" at my current skill level (5 months old since I started...). BUT... I really like inventories - so I made one. The great thing about it, I can export and readd in future games using this same system!

Thanks for the resources some people here gave me. I appreciate it.

[void wedge]

How did you make scriptable objects without c#?

[willow pulsar]

I'd Love to use that theme you have 😍

[crude linden]

by theme, you mean music? It's "Adam Port - This Time (Sei A Remix)"

[crude linden]

I didn't use scriptable objects. and I mention that in the 2nd line 🙂

Mainly, because I tried to "create a scriptable object" in the past for other stuff... but im not sure why c# doesn't like me and it never worked... so since it never worked, i found a differemt way to get it working.

[willow pulsar]

No i meant theme your editor color scheme

[crude linden]

ah. I think I only changed playmode color to this hex: ADACFF

It's in Edit > Preferences > Colors > Playmode Tint

[void wedge]

i need to make inventory system for more than 1 project personally

[crude linden]

I'm going to create a tutorial for the inventory system I've made. It may have way more features than regular inventories though. So to make it more relevant to you, list features you need from the inventory and i'll go over those if I have them

Im the kind of guy who prefers tutorials that teaches you how to think - rather than follow these steps to reproduce the thing.

Think > Remake.

Once you know how to think, you can create on your own and go further.

Just need one more feature before I lay off the inventory, and that is "Equipping Potion" in 2 consumable slots. heal + special effect type.

[void wedge]

not sure which feature, i want equipment, and list and perhaps being used by an event?

i would have different groups in a game with different inventory

[crude linden]

List?
Used by an event?

[crude linden]

You mean tabs. Like "all items" / "weapons” / "Consumables" / "Material" etc

[void wedge]

i would have to use list of scriptable object or list of gameobject maybe? as for used by an event i guess i can just add a trigger event at the end but i need it to be able to do that

[void wedge]

sort of, this is good for 1 project , but for another one it would be Inventory1, Inventory2, Inventory3, Inventory4

[crude linden]

Why 4 inventories? Any similar game i can see how it behaves?

[void wedge]

it can be 2-3-4 or more but its because that game requires 4

[crude linden]

Different bags? (Like in world of warcraft)

Different players?

Different item type?

[void wedge]

https://www.youtube.com/watch?v=P4SdeC8s2FU&list=PL2qqrSqvrZ8CaqFxlKX_PrKJ5DM_sqRoi

[void wedge]

1 project is different bags with different item type, second project is different group of players, 1 inventory per group of 4 players

[crude linden]

I could only see this. So it is basically showing relevant items in a list. If equipping headgears show only headgears in inventory not equipped

[crude linden]

"1 inventory per group of 4 players"...

So its 1 inventory for each player? Like that?

[void wedge]

for each group of 4 player

look up further in the game there is a different group of character that you play as, you can switch between the two groups and they have different inventory i think i am not 100% certain

every group has a common inventory that is limited in size

every group has 3-4 character and they have equipments

[crude linden]

I saw your comments in Leo's server. Not sure why he hides in there...

He would be valuable in here.

In my inventory i do that 1 line of string to save in an external file. When i post this tutorial you'll see. Without downloading/using external scripts.

I'll layout the outline first.

[void wedge]

so you use a string for your inventory system?

[crude linden]

Its not that simple. You'll see when i share the tutorial. But i might record an overview showing around the system instead.

Its a mix of AOT dictionaries, custom events, gameObject Manager and using strings.

[void wedge]

okay

[crude linden]

Tomorrow I'll record my inventory, what it can do and how i did it.

Sorry for the delay, needed to finish some features and polish its functions.

I recently completed most of it for now. So its ready to be shown.

Will post a new thread and a video tour inside the graphs about it. Tagging you there ✌️

[sleek osprey]

How's this going? In general i only use SO for the initial database that holds the descriptions of items.

Ingame u spawn and use copies of those however u want.

Then use something like binary, json or xml to store player inventory

[crude linden]

It's been harder to record - met bugs while recording, had to fix bugs before sharing it. I'm almost done.

I have these in file. But it's not finished yet

[crude linden]

Yeah in my case, I tried creating SO with c# and failed. I followed tutorials and couldnt make it happen so i decided to go full reta.... I mean, full uVS 😛

[sleek osprey]

Ah, if you ever want to revisit it I can give you detailed/concise approach to make it work, but I'm also a big fan of "do what works for you"

you can also use Google Sheets or MS Excel as a CSV generator for game-data lol