Ontology: Items

Overview

Qualities of items that might be useful in game play (if the system supports it) are modeled as item properites. Value, encumbrance, capacity, “slot” for clothing, and so forth.

Other qualities, usually used to randomly place and equip items, are handled through tags.

Properties

Property Description
name The name of the item in a syntax that indicates both singular and plural (including indefinite plural) usage. Examples: Pop’s Root Beer Hard cand{y|ies}; {|pairs of }Mary Jane shoes; stick{s} of beef jerky). If no plural is provided, we assume the plural ends in s. Names include brands, styles, and color, since these attributes don’t matter in game terms and are just flavor text.
title Non-serial items with titles (e.g. books).
image URL to an image for the item.
enc The encumbrance of the item (generally working on the limit of 70 + (Strong*10) as the maxium encumbrance a person can carry). The value is derived from both the size and weight tags, if it is not explicitly declared.
value The item’s value (in some abstraction of currency).
consumes A tag for what this item consumes (e.g. ammo:22)
frequency The frequency of the item’s occurrence where it normally occurs. Everything is rare to find somewhere (common, uncommon, rare).
condition The condition of the item, usually for memorabilia. Condition adjusts an item’s value, but in the future, it may also be used to determine if something is broken and/or fixable (poor, fair, good, excellent, mint).
series One of a series of items, usually applied to publications or any other item that might be collectible in a game. For example:
{
    "name": "comic book",
    "series": {
        "title": "Giggle Comics",
        "issue": 99,
        "total": 133,
        "pubDate": "Sunday 24 Nov 1957"
    }
}
            
title The title of the serial (this may be the name of the serial, or the name of the item in the serial, and the name of the serial).
issue The number of the item in a series, to make it simpler track the collection of sets, like baseball cards. (Sets of serials usually command 2-3x the price of the individual items sold separately).
total The total number of items in this series (from the game’s perspective).
pubDate Date of publication.
bundled Bundles are not containers, they are items that contain specific amounts of other items. For example, a box of ammo, a book of matches, or magazine for a firearm.
{
    "name": "box{es} of .45 ammo",
    "bundled": {
        "item": "ammo:45",
        "count": 20,
        "actual": 18
    }
}
            
item Name of the item this item includes
count The number of said items this bundle normally contains or includes.
actual The actual number of said items this item contains or includes.

Qualities

These can apply to anything regardless of category.

Categories

Locations

The trick here will be to define a constrained set of categories. Specific locations can further define a set of items specific to that location.