What do you mean "loot system"?
Pretty much all RPG games and most story-driven action games have items and some kind of loot system. Items can work in one of two general ways:
Focus on consumable items
Games like Half Life have about 10 - 15 guns (which are by far the most exciting items to find) so they need to be spaced out over the course of the game. Every time you play you get the same guns and every who plays will have the same experience using them. Most of the items you collect in the game are consumable items like ammunition or restorative items.
Focus on boundless loot
Games in this category tend to be referred to as "loot games", probably because the experience of gaining access to, and finding additional, better loot is what keeps the game's momentum going in a big way.
This describes games more like Diablo where instead of having about 15 weapons, there are literally millions. This is because the stats are procedurally generated, usually within tiers.
A strong example of this, and the one I've been keeping in my mind while I work on the Asciilands item system, is Diablo 2. There are countless possible gloves that you might find in the game but that doesn't mean you need to inspect each kind. They are neatly tiered so you can know which are worth looking at and which are not even worth picking up. Although there are only five different "types" of gloves, once you factor in all the different properties they can have as well as all the different values that those properties can hold, you begin to understand how a game can be so strongly driven by something that can inject so much variety from what is relatively little content.
Needless to say, Asciilands will have more of a "boundless loot" system. Tiers are important to any loot system so let's take a look at that.
Dropping items in tiers...or...tier drops
Diablo 2 had a clear and basic item tier system: fifteen types of gloves with sequentially increasing stats, countless variants within the tiers but still bound by the limits of the tier to which they belong. Path of Exile, however, has a slightly more complex tiering system: their is an entire set of tiers geared to the needs of each specific class. You are by no means rail-roaded into using gear that the PoE developers think you should use but when you get a feel for the kind of gear that your character get the most out of, you tend to continue looking for gear inside the continuums of your most useful items.
Makes sense? Probably not. For get it then, here's the meat:
This is how we do it
I've been experimenting with a new method in Asciilands; items will be spawned with stats conducive to particular types of characters (with enough variation that you'll find weird items useful for weird builds) however, there will be no sequential tier system behind the items. Instead, there will be a large array of materials that the items can be made out of and the properties of the materials will affect the extent to which the stats rolled on the items will help (or in some cases, hinder) you.
Woah, what? Yeah, it's weird and hard to explain and I haven't seen it done before.
Suppose you were a warrior class. You want an item that adds to your strength and your damage. Some defence would be nice, too. Naturally, you'll be looking for some gloves that add to all these things but if you want to get the best possible gloves for your build, you want them to be made out of materials that are conducive to supporting these stats.
The material system in Asciilands is one that kinda evolved accidentally. Materials will have most of the same properties that items can have but their values will act as multipliers to the items that are made out of them. I'll walk you through an example:
First off, the itemisation engine decides it want to create an item. In this case, a pair of gloves:
Gloves, like any item, can have all sorts of useful properties to improve your little ascii dude in all sorts of ways. The list of properties is rather expansive so I've reduced the list for the sake of illustration.
First thing we need to do is procedurally decide which properties will be affected by this item. This process is not completely random and is designed to boost complimentary properties rather than just scatter-gunning over the entire property list but we're only working with a few properties in the example so that doesn't matter much right now.
In these diagrams, the dice represent where random chance plays a part and the grey blocks are "concrete" or unchanging decisions. In this example, the itemisation engine has chosen the ticked properties to be featured on this pair of gloves.
The stats are rolled and applied to the item before the item even know what it will made out of. The next step is to choose the materials. The materials, like the stats, are not completely random. They need to make sense. Gloves, at the moment, are made of two materials: one for the lining, one for the outer layer. Materials are also categorised in many different ways but gloves look for a few kinds of materials depending on the type of glove. Lining might be light or heavy fabric, outer might be fabric or metal.
Here are the materials for our gloves:
As you can see, the choice of material is random but the properties of each material are unchanging. Also noticeable is the fact that material properties are much lower than the properties on the gloves themselves. This is because material properties act as multipliers*, not increments to the base property.
Also, they sometimes diminish the value or even make it negative. This is used sparingly but appropriately and in ways that make sense. Iron will have very high defensive stats but will reduce agility because of its weight. Gold will have high value but negative electrical defence because of its conductivity etc.
* When I say "multiplier" what I means is "a number that gets messed with a a bit and works with a bunch of other numbers that eventually produce a number that multiplies the base value.
Right, so now we have our item with its base properties and the materials from which it will be made which will make changes to those properties. Iron has strong damage and wolf pelt is good for freedom of movement and protection from the cold. Let's take a look at how the numbers are actually decided:
Right! What? Ok, the only stats that are even evaluated are the ones that are on the item. Iron reduces agility but the wolf pelt boosts it up again, just not as much. Agility ends up taking a negative hit. Fire defence, on the other hand, is supported by both materials and just happened to roll highly on the gloves. This kind of line-up of complimentary conditions will be what makes some items stand out for certain classes.
Ok! So what did we end up with?
A pair of gloves that hoped to be agile and fire proof. Sadly, the materials used were too heavy to be agile but both materials are fairly fire resistant to that part came through well.
Both materials are worth a bit of money, though, so that's nice.
This would be a fairly middle-of-the-road item and probably either sold or discarded unless it was fulfilling a certain need. A lot of loot hunting will be about getting just the right stats rolling with just the right materials to boost them up.
Tiers, as explained earlier, are important when it comes to deciding which gear to even consider using. In Asciilands the full tier system hasn't been worked out yet but at this stage, it looks like a large part of it would be knowing which materials boost the properties that help your build and trying to find gear made from those materials. Base level item will have to be communicated some other way but I feel the material system (And the many, many combinations of item tiers that it affords) is an interesting way to communicate and item's likely properties.
Materials also have colours (which are used in the sprite) and "collector" properties (like "aesthetics" and "mystique") which will make items worth more to some vendors than others. I'll post more about this as those particular systems develop a bit more.
That's it for now! Hope you enj...oh right...screenshot. Let me see...
testIsland.map started getting a bit bloated with a whole lot of test awfulness so I made a new map for testing new features. Goodbye, testIsland; hello, debugMenagerie! It's more organised and conducive to the kind of testing required at this stage of development. The northwest corner of testIsland was created while movement was still being tested and we're a bit past that now.
This is the item room where we can test the things items can do. There's a chest to put them in, a vendor to sell them to and tables to stuff to pick up and test. They'll fill up as more item types emerge and I have no doubt that this room will require many extensions.
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