Crafting system & other item related stuff

[Nuclear]

So, it's possible to create inventory system and items in sc2, then how could I make item related triggers? Eg. Unit can't enter region X without item Y, or, with item Z and V, player can use ability "crafting" and create new item A. And btw, I am not currently able to use Galaxy editor, I just wanted to know if it's possible. Thanks.

 

[Tleno]

Well, it's pretty much possible to be done with trrigers for sure. I can even picture that you can create a Minecraft-like crafting system this way.

 

[Nuclear]

Really? Great, ty.

 

[Tleno]

If you could make something in WC3 with trrigers, you can definetly do it even better in SC2. Including the fact you can customize inventories in the way you want...

 

[Nuclear]

Great, well, can You give me an example of item related trigger (maybe like that unit can not enter region thing)? Because I don't know much about them, and I can' try by myself right now.

• This is what I mean by "making an example"

 

[Tleno]

I myself haven't worked much with trrigers, but this "Have item to enter" is pretty much working the same way as in Warcraft 3, I guess.

 

[Dr Super Good]

There is a fully functioning inventory and item system built into the game. Just there are no examples of it being used outside of custom maps. Notice the item related catalogs in the data editor.

Here are the natives I found for item interaction.
native void OrderSetTargetItem (order inOrder, unit inItem);
native unit OrderGetTargetItem (order inOrder);

// Unit inventory
const int c_unitInventoryCountCarried = 0;
const int c_unitInventoryCountEmpty = 1;
const int c_unitInventoryCountTotal = 2;

native int UnitInventoryContainer (unit inUnit);
native int UnitInventoryCount (unit inUnit, int inCountType);
native unit UnitInventoryCreate (unit inUnit, string itemType);
native unitgroup UnitInventoryGroup (unit inUnit);
native int UnitInventoryIndex (unit inItem);
native unit UnitInventoryItem (unit inUnit, int inIndex);
native unit UnitInventoryLastCreated ();
native void UnitInventoryMove (unit inItem, int inContainer, int inSlot);
native void UnitInventoryRemove (unit inItem);
native int UnitInventorySlot (unit inItem);
native unit UnitInventoryUnit (unit inItem);

 

[Tleno]

And can you make some kind of crafting system... with data (Without trrigers or ass less trrigers as possible)? That would be awesome.

 

[Dr Super Good]

Sadly I have no idea, I have yet to try out items in SC2 myself (only played maps which used them).

You can however make inventories with more than 6 slots. This means you can make dedicated slots. Eg Crafting only slots which would make triggering a system easier (can ignore all items not in the crafting area).

 

[Nuclear]

Okay, thanks Dr Super Good and Tleno, btw if you find out that data thing, please tell.

 

[Tleno]

Yesterday I spent some time thinking how to make a Minecraftish crafting system in SC2, so I got some idea how it could work (Still, I'm not good with trrigers so my idea might be pretty much unefficient and there can be an easier way).

See, it appears to me now that you can't really make a Data-only crafting system in SC2, because you can't make items interact in different ways with each other. You can do that only with triggers.

 

[Dr Super Good]

Then the problem is to make an efficient item crafting system using triggers.

Firstly the set of crafting rules needs to be difined. Then a system needs to be designed that can execute these rules using source data.
Once a suitable design is found, you must try and test it etc. Finally is the trivial task of setting up the data for it to use (probably arrays).

The problem is getting its execution complexity as close to O(1) as possible. The lack of dynamic structures in SC2 make this task more difficult but it should still be possible.